support aliyun sdk on TencentOS tiny

sample: examples\aliyun_iotkit_csdk_mqtt
project: board\TencentOS_tiny_EVB_MX_Plus\KEIL\aliyun_iotkit_csdk_mqtt

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/.gitignore

@@ -0,0 +1,4 @@
+Makefile
+*.sln
+*.vcxproj
+mbedtls/check_config

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/aes.h

@@ -0,0 +1,336 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_AES_H
+#define MBEDTLS_AES_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#include <stddef.h>
+#include <stdint.h>
+
+/* padlock.c and aesni.c rely on these values! */
+#define MBEDTLS_AES_ENCRYPT     1
+#define MBEDTLS_AES_DECRYPT     0
+
+#define MBEDTLS_ERR_AES_INVALID_KEY_LENGTH                -0x0020  /**< Invalid key length. */
+#define MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH              -0x0022  /**< Invalid data input length. */
+
+#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
+    !defined(inline) && !defined(__cplusplus)
+    #define inline __inline
+#endif
+
+#if !defined(MBEDTLS_AES_ALT)
+// Regular implementation
+//
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          AES context structure
+ *
+ * \note           buf is able to hold 32 extra bytes, which can be used:
+ *                 - for alignment purposes if VIA padlock is used, and/or
+ *                 - to simplify key expansion in the 256-bit case by
+ *                 generating an extra round key
+ */
+typedef struct {
+    int nr;                     /*!<  number of rounds  */
+    uint32_t *rk;               /*!<  AES round keys    */
+    uint32_t buf[68];           /*!<  unaligned data    */
+}
+mbedtls_aes_context;
+
+/**
+ * \brief          Initialize AES context
+ *
+ * \param ctx      AES context to be initialized
+ */
+void mbedtls_aes_init(mbedtls_aes_context *ctx);
+
+/**
+ * \brief          Clear AES context
+ *
+ * \param ctx      AES context to be cleared
+ */
+void mbedtls_aes_free(mbedtls_aes_context *ctx);
+
+/**
+ * \brief          AES key schedule (encryption)
+ *
+ * \param ctx      AES context to be initialized
+ * \param key      encryption key
+ * \param keybits  must be 128, 192 or 256
+ *
+ * \return         0 if successful, or MBEDTLS_ERR_AES_INVALID_KEY_LENGTH
+ */
+int mbedtls_aes_setkey_enc(mbedtls_aes_context *ctx, const unsigned char *key,
+                                       unsigned int keybits);
+
+/**
+ * \brief          AES key schedule (decryption)
+ *
+ * \param ctx      AES context to be initialized
+ * \param key      decryption key
+ * \param keybits  must be 128, 192 or 256
+ *
+ * \return         0 if successful, or MBEDTLS_ERR_AES_INVALID_KEY_LENGTH
+ */
+int mbedtls_aes_setkey_dec(mbedtls_aes_context *ctx, const unsigned char *key,
+                                       unsigned int keybits);
+
+/**
+ * \brief          AES-ECB block encryption/decryption
+ *
+ * \param ctx      AES context
+ * \param mode     MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT
+ * \param input    16-byte input block
+ * \param output   16-byte output block
+ *
+ * \return         0 if successful
+ */
+int mbedtls_aes_crypt_ecb(mbedtls_aes_context *ctx,
+                                      int mode,
+                                      const unsigned char input[16],
+                                      unsigned char output[16]);
+
+#if defined(MBEDTLS_CIPHER_MODE_CBC)
+/**
+ * \brief          AES-CBC buffer encryption/decryption
+ *                 Length should be a multiple of the block
+ *                 size (16 bytes)
+ *
+ * \note           Upon exit, the content of the IV is updated so that you can
+ *                 call the function same function again on the following
+ *                 block(s) of data and get the same result as if it was
+ *                 encrypted in one call. This allows a "streaming" usage.
+ *                 If on the other hand you need to retain the contents of the
+ *                 IV, you should either save it manually or use the cipher
+ *                 module instead.
+ *
+ * \param ctx      AES context
+ * \param mode     MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT
+ * \param length   length of the input data
+ * \param iv       initialization vector (updated after use)
+ * \param input    buffer holding the input data
+ * \param output   buffer holding the output data
+ *
+ * \return         0 if successful, or MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH
+ */
+int mbedtls_aes_crypt_cbc(mbedtls_aes_context *ctx,
+                                      int mode,
+                                      size_t length,
+                                      unsigned char iv[16],
+                                      const unsigned char *input,
+                                      unsigned char *output);
+#endif /* MBEDTLS_CIPHER_MODE_CBC */
+
+#if defined(MBEDTLS_CIPHER_MODE_CFB)
+/**
+ * \brief          AES-CFB128 buffer encryption/decryption.
+ *
+ * Note: Due to the nature of CFB you should use the same key schedule for
+ * both encryption and decryption. So a context initialized with
+ * mbedtls_aes_setkey_enc() for both MBEDTLS_AES_ENCRYPT and MBEDTLS_AES_DECRYPT.
+ *
+ * \note           Upon exit, the content of the IV is updated so that you can
+ *                 call the function same function again on the following
+ *                 block(s) of data and get the same result as if it was
+ *                 encrypted in one call. This allows a "streaming" usage.
+ *                 If on the other hand you need to retain the contents of the
+ *                 IV, you should either save it manually or use the cipher
+ *                 module instead.
+ *
+ * \param ctx      AES context
+ * \param mode     MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT
+ * \param length   length of the input data
+ * \param iv_off   offset in IV (updated after use)
+ * \param iv       initialization vector (updated after use)
+ * \param input    buffer holding the input data
+ * \param output   buffer holding the output data
+ *
+ * \return         0 if successful
+ */
+int mbedtls_aes_crypt_cfb128(mbedtls_aes_context *ctx,
+        int mode,
+        size_t length,
+        size_t *iv_off,
+        unsigned char iv[16],
+        const unsigned char *input,
+        unsigned char *output);
+
+/**
+ * \brief          AES-CFB8 buffer encryption/decryption.
+ *
+ * Note: Due to the nature of CFB you should use the same key schedule for
+ * both encryption and decryption. So a context initialized with
+ * mbedtls_aes_setkey_enc() for both MBEDTLS_AES_ENCRYPT and MBEDTLS_AES_DECRYPT.
+ *
+ * \note           Upon exit, the content of the IV is updated so that you can
+ *                 call the function same function again on the following
+ *                 block(s) of data and get the same result as if it was
+ *                 encrypted in one call. This allows a "streaming" usage.
+ *                 If on the other hand you need to retain the contents of the
+ *                 IV, you should either save it manually or use the cipher
+ *                 module instead.
+ *
+ * \param ctx      AES context
+ * \param mode     MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT
+ * \param length   length of the input data
+ * \param iv       initialization vector (updated after use)
+ * \param input    buffer holding the input data
+ * \param output   buffer holding the output data
+ *
+ * \return         0 if successful
+ */
+int mbedtls_aes_crypt_cfb8(mbedtls_aes_context *ctx,
+                                       int mode,
+                                       size_t length,
+                                       unsigned char iv[16],
+                                       const unsigned char *input,
+                                       unsigned char *output);
+#endif /*MBEDTLS_CIPHER_MODE_CFB */
+
+#if defined(MBEDTLS_CIPHER_MODE_CTR)
+/**
+ * \brief               AES-CTR buffer encryption/decryption
+ *
+ * Warning: You have to keep the maximum use of your counter in mind!
+ *
+ * Note: Due to the nature of CTR you should use the same key schedule for
+ * both encryption and decryption. So a context initialized with
+ * mbedtls_aes_setkey_enc() for both MBEDTLS_AES_ENCRYPT and MBEDTLS_AES_DECRYPT.
+ *
+ * \param ctx           AES context
+ * \param length        The length of the data
+ * \param nc_off        The offset in the current stream_block (for resuming
+ *                      within current cipher stream). The offset pointer to
+ *                      should be 0 at the start of a stream.
+ * \param nonce_counter The 128-bit nonce and counter.
+ * \param stream_block  The saved stream-block for resuming. Is overwritten
+ *                      by the function.
+ * \param input         The input data stream
+ * \param output        The output data stream
+ *
+ * \return         0 if successful
+ */
+int mbedtls_aes_crypt_ctr(mbedtls_aes_context *ctx,
+                                      size_t length,
+                                      size_t *nc_off,
+                                      unsigned char nonce_counter[16],
+                                      unsigned char stream_block[16],
+                                      const unsigned char *input,
+                                      unsigned char *output);
+#endif /* MBEDTLS_CIPHER_MODE_CTR */
+
+/**
+ * \brief           Internal AES block encryption function
+ *                  (Only exposed to allow overriding it,
+ *                  see MBEDTLS_AES_ENCRYPT_ALT)
+ *
+ * \param ctx       AES context
+ * \param input     Plaintext block
+ * \param output    Output (ciphertext) block
+ *
+ * \return          0 if successful
+ */
+int mbedtls_internal_aes_encrypt(mbedtls_aes_context *ctx,
+        const unsigned char input[16],
+        unsigned char output[16]);
+
+/**
+ * \brief           Internal AES block decryption function
+ *                  (Only exposed to allow overriding it,
+ *                  see MBEDTLS_AES_DECRYPT_ALT)
+ *
+ * \param ctx       AES context
+ * \param input     Ciphertext block
+ * \param output    Output (plaintext) block
+ *
+ * \return          0 if successful
+ */
+int mbedtls_internal_aes_decrypt(mbedtls_aes_context *ctx,
+        const unsigned char input[16],
+        unsigned char output[16]);
+
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
+#if defined(MBEDTLS_DEPRECATED_WARNING)
+#define MBEDTLS_DEPRECATED      __attribute__((deprecated))
+#else
+#define MBEDTLS_DEPRECATED
+#endif
+/**
+ * \brief           Internal AES block encryption function
+ *                  (Only exposed to allow overriding it,
+ *                  see MBEDTLS_AES_ENCRYPT_ALT)
+ *
+ * \deprecated      Superseded by mbedtls_aes_encrypt_ext() in 2.5.0
+ *
+ * \param ctx       AES context
+ * \param input     Plaintext block
+ * \param output    Output (ciphertext) block
+ */
+MBEDTLS_DEPRECATED static inline void mbedtls_aes_encrypt(
+            mbedtls_aes_context *ctx,
+            const unsigned char input[16],
+            unsigned char output[16])
+{
+    mbedtls_internal_aes_encrypt(ctx, input, output);
+}
+
+/**
+ * \brief           Internal AES block decryption function
+ *                  (Only exposed to allow overriding it,
+ *                  see MBEDTLS_AES_DECRYPT_ALT)
+ *
+ * \deprecated      Superseded by mbedtls_aes_decrypt_ext() in 2.5.0
+ *
+ * \param ctx       AES context
+ * \param input     Ciphertext block
+ * \param output    Output (plaintext) block
+ */
+MBEDTLS_DEPRECATED static inline void mbedtls_aes_decrypt(
+            mbedtls_aes_context *ctx,
+            const unsigned char input[16],
+            unsigned char output[16])
+{
+    mbedtls_internal_aes_decrypt(ctx, input, output);
+}
+
+#undef MBEDTLS_DEPRECATED
+#endif /* !MBEDTLS_DEPRECATED_REMOVED */
+
+#ifdef __cplusplus
+}
+#endif
+
+#else  /* MBEDTLS_AES_ALT */
+#include "aes_alt.h"
+#endif /* MBEDTLS_AES_ALT */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          Checkup routine
+ *
+ * \return         0 if successful, or 1 if the test failed
+ */
+int mbedtls_aes_self_test(int verbose);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* aes.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/asn1.h

@@ -0,0 +1,322 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_ASN1_H
+#define MBEDTLS_ASN1_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#include <stddef.h>
+
+#if defined(MBEDTLS_BIGNUM_C)
+    #include "bignum.h"
+#endif
+
+/**
+ * \addtogroup asn1_module
+ * \{
+ */
+
+/**
+ * \name ASN1 Error codes
+ * These error codes are OR'ed to X509 error codes for
+ * higher error granularity.
+ * ASN1 is a standard to specify data structures.
+ * \{
+ */
+#define MBEDTLS_ERR_ASN1_OUT_OF_DATA                      -0x0060  /**< Out of data when parsing an ASN1 data structure. */
+#define MBEDTLS_ERR_ASN1_UNEXPECTED_TAG                   -0x0062  /**< ASN1 tag was of an unexpected value. */
+#define MBEDTLS_ERR_ASN1_INVALID_LENGTH                   -0x0064  /**< Error when trying to determine the length or invalid length. */
+#define MBEDTLS_ERR_ASN1_LENGTH_MISMATCH                  -0x0066  /**< Actual length differs from expected length. */
+#define MBEDTLS_ERR_ASN1_INVALID_DATA                     -0x0068  /**< Data is invalid. (not used) */
+#define MBEDTLS_ERR_ASN1_ALLOC_FAILED                     -0x006A  /**< Memory allocation failed */
+#define MBEDTLS_ERR_ASN1_BUF_TOO_SMALL                    -0x006C  /**< Buffer too small when writing ASN.1 data structure. */
+
+/* \} name */
+
+/**
+ * \name DER constants
+ * These constants comply with DER encoded the ANS1 type tags.
+ * DER encoding uses hexadecimal representation.
+ * An example DER sequence is:\n
+ * - 0x02 -- tag indicating INTEGER
+ * - 0x01 -- length in octets
+ * - 0x05 -- value
+ * Such sequences are typically read into \c ::mbedtls_x509_buf.
+ * \{
+ */
+#define MBEDTLS_ASN1_BOOLEAN                 0x01
+#define MBEDTLS_ASN1_INTEGER                 0x02
+#define MBEDTLS_ASN1_BIT_STRING              0x03
+#define MBEDTLS_ASN1_OCTET_STRING            0x04
+#define MBEDTLS_ASN1_NULL                    0x05
+#define MBEDTLS_ASN1_OID                     0x06
+#define MBEDTLS_ASN1_UTF8_STRING             0x0C
+#define MBEDTLS_ASN1_SEQUENCE                0x10
+#define MBEDTLS_ASN1_SET                     0x11
+#define MBEDTLS_ASN1_PRINTABLE_STRING        0x13
+#define MBEDTLS_ASN1_T61_STRING              0x14
+#define MBEDTLS_ASN1_IA5_STRING              0x16
+#define MBEDTLS_ASN1_UTC_TIME                0x17
+#define MBEDTLS_ASN1_GENERALIZED_TIME        0x18
+#define MBEDTLS_ASN1_UNIVERSAL_STRING        0x1C
+#define MBEDTLS_ASN1_BMP_STRING              0x1E
+#define MBEDTLS_ASN1_PRIMITIVE               0x00
+#define MBEDTLS_ASN1_CONSTRUCTED             0x20
+#define MBEDTLS_ASN1_CONTEXT_SPECIFIC        0x80
+/* \} name */
+/* \} addtogroup asn1_module */
+
+/** Returns the size of the binary string, without the trailing \\0 */
+#define MBEDTLS_OID_SIZE(x) (sizeof(x) - 1)
+
+/**
+ * Compares an mbedtls_asn1_buf structure to a reference OID.
+ *
+ * Only works for 'defined' oid_str values (MBEDTLS_OID_HMAC_SHA1), you cannot use a
+ * 'unsigned char *oid' here!
+ */
+#define MBEDTLS_OID_CMP(oid_str, oid_buf)                                   \
+    ( ( MBEDTLS_OID_SIZE(oid_str) != (oid_buf)->len ) ||                \
+      memcmp( (oid_str), (oid_buf)->p, (oid_buf)->len) != 0 )
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \name Functions to parse ASN.1 data structures
+ * \{
+ */
+
+/**
+ * Type-length-value structure that allows for ASN1 using DER.
+ */
+typedef struct mbedtls_asn1_buf {
+    int tag;                /**< ASN1 type, e.g. MBEDTLS_ASN1_UTF8_STRING. */
+    size_t len;             /**< ASN1 length, in octets. */
+    unsigned char *p;       /**< ASN1 data, e.g. in ASCII. */
+}
+mbedtls_asn1_buf;
+
+/**
+ * Container for ASN1 bit strings.
+ */
+typedef struct mbedtls_asn1_bitstring {
+    size_t len;                 /**< ASN1 length, in octets. */
+    unsigned char unused_bits;  /**< Number of unused bits at the end of the string */
+    unsigned char *p;           /**< Raw ASN1 data for the bit string */
+}
+mbedtls_asn1_bitstring;
+
+/**
+ * Container for a sequence of ASN.1 items
+ */
+typedef struct mbedtls_asn1_sequence {
+    mbedtls_asn1_buf buf;                   /**< Buffer containing the given ASN.1 item. */
+    struct mbedtls_asn1_sequence *next;    /**< The next entry in the sequence. */
+}
+mbedtls_asn1_sequence;
+
+/**
+ * Container for a sequence or list of 'named' ASN.1 data items
+ */
+typedef struct mbedtls_asn1_named_data {
+    mbedtls_asn1_buf oid;                   /**< The object identifier. */
+    mbedtls_asn1_buf val;                   /**< The named value. */
+    struct mbedtls_asn1_named_data *next;  /**< The next entry in the sequence. */
+    unsigned char next_merged;      /**< Merge next item into the current one? */
+}
+mbedtls_asn1_named_data;
+
+/**
+ * \brief       Get the length of an ASN.1 element.
+ *              Updates the pointer to immediately behind the length.
+ *
+ * \param p     The position in the ASN.1 data
+ * \param end   End of data
+ * \param len   The variable that will receive the value
+ *
+ * \return      0 if successful, MBEDTLS_ERR_ASN1_OUT_OF_DATA on reaching
+ *              end of data, MBEDTLS_ERR_ASN1_INVALID_LENGTH if length is
+ *              unparseable.
+ */
+int mbedtls_asn1_get_len(unsigned char **p,
+                                     const unsigned char *end,
+                                     size_t *len);
+
+/**
+ * \brief       Get the tag and length of the tag. Check for the requested tag.
+ *              Updates the pointer to immediately behind the tag and length.
+ *
+ * \param p     The position in the ASN.1 data
+ * \param end   End of data
+ * \param len   The variable that will receive the length
+ * \param tag   The expected tag
+ *
+ * \return      0 if successful, MBEDTLS_ERR_ASN1_UNEXPECTED_TAG if tag did
+ *              not match requested tag, or another specific ASN.1 error code.
+ */
+int mbedtls_asn1_get_tag(unsigned char **p,
+                                     const unsigned char *end,
+                                     size_t *len, int tag);
+
+/**
+ * \brief       Retrieve a boolean ASN.1 tag and its value.
+ *              Updates the pointer to immediately behind the full tag.
+ *
+ * \param p     The position in the ASN.1 data
+ * \param end   End of data
+ * \param val   The variable that will receive the value
+ *
+ * \return      0 if successful or a specific ASN.1 error code.
+ */
+int mbedtls_asn1_get_bool(unsigned char **p,
+                                      const unsigned char *end,
+                                      int *val);
+
+/**
+ * \brief       Retrieve an integer ASN.1 tag and its value.
+ *              Updates the pointer to immediately behind the full tag.
+ *
+ * \param p     The position in the ASN.1 data
+ * \param end   End of data
+ * \param val   The variable that will receive the value
+ *
+ * \return      0 if successful or a specific ASN.1 error code.
+ */
+int mbedtls_asn1_get_int(unsigned char **p,
+                                     const unsigned char *end,
+                                     int *val);
+
+/**
+ * \brief       Retrieve a bitstring ASN.1 tag and its value.
+ *              Updates the pointer to immediately behind the full tag.
+ *
+ * \param p     The position in the ASN.1 data
+ * \param end   End of data
+ * \param bs    The variable that will receive the value
+ *
+ * \return      0 if successful or a specific ASN.1 error code.
+ */
+int mbedtls_asn1_get_bitstring(unsigned char **p, const unsigned char *end,
+        mbedtls_asn1_bitstring *bs);
+
+/**
+ * \brief       Retrieve a bitstring ASN.1 tag without unused bits and its
+ *              value.
+ *              Updates the pointer to the beginning of the bit/octet string.
+ *
+ * \param p     The position in the ASN.1 data
+ * \param end   End of data
+ * \param len   Length of the actual bit/octect string in bytes
+ *
+ * \return      0 if successful or a specific ASN.1 error code.
+ */
+int mbedtls_asn1_get_bitstring_null(unsigned char **p, const unsigned char *end,
+        size_t *len);
+
+/**
+ * \brief       Parses and splits an ASN.1 "SEQUENCE OF <tag>"
+ *              Updated the pointer to immediately behind the full sequence tag.
+ *
+ * \param p     The position in the ASN.1 data
+ * \param end   End of data
+ * \param cur   First variable in the chain to fill
+ * \param tag   Type of sequence
+ *
+ * \return      0 if successful or a specific ASN.1 error code.
+ */
+int mbedtls_asn1_get_sequence_of(unsigned char **p,
+        const unsigned char *end,
+        mbedtls_asn1_sequence *cur,
+        int tag);
+
+#if defined(MBEDTLS_BIGNUM_C)
+/**
+ * \brief       Retrieve a MPI value from an integer ASN.1 tag.
+ *              Updates the pointer to immediately behind the full tag.
+ *
+ * \param p     The position in the ASN.1 data
+ * \param end   End of data
+ * \param X     The MPI that will receive the value
+ *
+ * \return      0 if successful or a specific ASN.1 or MPI error code.
+ */
+int mbedtls_asn1_get_mpi(unsigned char **p,
+                                     const unsigned char *end,
+                                     mbedtls_mpi *X);
+#endif /* MBEDTLS_BIGNUM_C */
+
+/**
+ * \brief       Retrieve an AlgorithmIdentifier ASN.1 sequence.
+ *              Updates the pointer to immediately behind the full
+ *              AlgorithmIdentifier.
+ *
+ * \param p     The position in the ASN.1 data
+ * \param end   End of data
+ * \param alg   The buffer to receive the OID
+ * \param params The buffer to receive the params (if any)
+ *
+ * \return      0 if successful or a specific ASN.1 or MPI error code.
+ */
+int mbedtls_asn1_get_alg(unsigned char **p,
+                                     const unsigned char *end,
+                                     mbedtls_asn1_buf *alg, mbedtls_asn1_buf *params);
+
+/**
+ * \brief       Retrieve an AlgorithmIdentifier ASN.1 sequence with NULL or no
+ *              params.
+ *              Updates the pointer to immediately behind the full
+ *              AlgorithmIdentifier.
+ *
+ * \param p     The position in the ASN.1 data
+ * \param end   End of data
+ * \param alg   The buffer to receive the OID
+ *
+ * \return      0 if successful or a specific ASN.1 or MPI error code.
+ */
+int mbedtls_asn1_get_alg_null(unsigned char **p,
+        const unsigned char *end,
+        mbedtls_asn1_buf *alg);
+
+/**
+ * \brief       Find a specific named_data entry in a sequence or list based on
+ *              the OID.
+ *
+ * \param list  The list to seek through
+ * \param oid   The OID to look for
+ * \param len   Size of the OID
+ *
+ * \return      NULL if not found, or a pointer to the existing entry.
+ */
+mbedtls_asn1_named_data *mbedtls_asn1_find_named_data(mbedtls_asn1_named_data *list,
+        const char *oid, size_t len);
+
+/**
+ * \brief       Free a mbedtls_asn1_named_data entry
+ *
+ * \param entry The named data entry to free
+ */
+void mbedtls_asn1_free_named_data(mbedtls_asn1_named_data *entry);
+
+/**
+ * \brief       Free all entries in a mbedtls_asn1_named_data list
+ *              Head will be set to NULL
+ *
+ * \param head  Pointer to the head of the list of named data entries to free
+ */
+void mbedtls_asn1_free_named_data_list(mbedtls_asn1_named_data **head);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* asn1.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/base64.h

@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_BASE64_H
+#define MBEDTLS_BASE64_H
+
+#include <stddef.h>
+
+#define MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL               -0x002A  /**< Output buffer too small. */
+#define MBEDTLS_ERR_BASE64_INVALID_CHARACTER              -0x002C  /**< Invalid character in input. */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          Encode a buffer into base64 format
+ *
+ * \param dst      destination buffer
+ * \param dlen     size of the destination buffer
+ * \param olen     number of bytes written
+ * \param src      source buffer
+ * \param slen     amount of data to be encoded
+ *
+ * \return         0 if successful, or MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL.
+ *                 *olen is always updated to reflect the amount
+ *                 of data that has (or would have) been written.
+ *                 If that length cannot be represented, then no data is
+ *                 written to the buffer and *olen is set to the maximum
+ *                 length representable as a size_t.
+ *
+ * \note           Call this function with dlen = 0 to obtain the
+ *                 required buffer size in *olen
+ */
+int mbedtls_base64_encode(unsigned char *dst, size_t dlen, size_t *olen,
+                                      const unsigned char *src, size_t slen);
+
+/**
+ * \brief          Decode a base64-formatted buffer
+ *
+ * \param dst      destination buffer (can be NULL for checking size)
+ * \param dlen     size of the destination buffer
+ * \param olen     number of bytes written
+ * \param src      source buffer
+ * \param slen     amount of data to be decoded
+ *
+ * \return         0 if successful, MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL, or
+ *                 MBEDTLS_ERR_BASE64_INVALID_CHARACTER if the input data is
+ *                 not correct. *olen is always updated to reflect the amount
+ *                 of data that has (or would have) been written.
+ *
+ * \note           Call this function with *dst = NULL or dlen = 0 to obtain
+ *                 the required buffer size in *olen
+ */
+int mbedtls_base64_decode(unsigned char *dst, size_t dlen, size_t *olen,
+                                      const unsigned char *src, size_t slen);
+
+/**
+ * \brief          Checkup routine
+ *
+ * \return         0 if successful, or 1 if the test failed
+ */
+int mbedtls_base64_self_test(int verbose);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* base64.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/bignum.h

@@ -0,0 +1,701 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_BIGNUM_H
+#define MBEDTLS_BIGNUM_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#include <stddef.h>
+#include <stdint.h>
+
+#if defined(MBEDTLS_FS_IO)
+    #include <stdio.h>
+#endif
+
+#define MBEDTLS_ERR_MPI_FILE_IO_ERROR                     -0x0002  /**< An error occurred while reading from or writing to a file. */
+#define MBEDTLS_ERR_MPI_BAD_INPUT_DATA                    -0x0004  /**< Bad input parameters to function. */
+#define MBEDTLS_ERR_MPI_INVALID_CHARACTER                 -0x0006  /**< There is an invalid character in the digit string. */
+#define MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL                  -0x0008  /**< The buffer is too small to write to. */
+#define MBEDTLS_ERR_MPI_NEGATIVE_VALUE                    -0x000A  /**< The input arguments are negative or result in illegal output. */
+#define MBEDTLS_ERR_MPI_DIVISION_BY_ZERO                  -0x000C  /**< The input argument for division is zero, which is not allowed. */
+#define MBEDTLS_ERR_MPI_NOT_ACCEPTABLE                    -0x000E  /**< The input arguments are not acceptable. */
+#define MBEDTLS_ERR_MPI_ALLOC_FAILED                      -0x0010  /**< Memory allocation failed. */
+
+#define MBEDTLS_MPI_CHK(f) do { if( ( ret = f ) != 0 ) goto cleanup; } while( 0 )
+
+/*
+ * Maximum size MPIs are allowed to grow to in number of limbs.
+ */
+#define MBEDTLS_MPI_MAX_LIMBS                             10000
+
+#if !defined(MBEDTLS_MPI_WINDOW_SIZE)
+    /*
+    * Maximum window size used for modular exponentiation. Default: 6
+    * Minimum value: 1. Maximum value: 6.
+    *
+    * Result is an array of ( 2 << MBEDTLS_MPI_WINDOW_SIZE ) MPIs used
+    * for the sliding window calculation. (So 64 by default)
+    *
+    * Reduction in size, reduces speed.
+    */
+    #define MBEDTLS_MPI_WINDOW_SIZE                           6        /**< Maximum windows size used. */
+#endif /* !MBEDTLS_MPI_WINDOW_SIZE */
+
+#if !defined(MBEDTLS_MPI_MAX_SIZE)
+    /*
+    * Maximum size of MPIs allowed in bits and bytes for user-MPIs.
+    * ( Default: 512 bytes => 4096 bits, Maximum tested: 2048 bytes => 16384 bits )
+    *
+    * Note: Calculations can results temporarily in larger MPIs. So the number
+    * of limbs required (MBEDTLS_MPI_MAX_LIMBS) is higher.
+    */
+    #define MBEDTLS_MPI_MAX_SIZE                              1024     /**< Maximum number of bytes for usable MPIs. */
+#endif /* !MBEDTLS_MPI_MAX_SIZE */
+
+#define MBEDTLS_MPI_MAX_BITS                              ( 8 * MBEDTLS_MPI_MAX_SIZE )    /**< Maximum number of bits for usable MPIs. */
+
+/*
+ * When reading from files with mbedtls_mpi_read_file() and writing to files with
+ * mbedtls_mpi_write_file() the buffer should have space
+ * for a (short) label, the MPI (in the provided radix), the newline
+ * characters and the '\0'.
+ *
+ * By default we assume at least a 10 char label, a minimum radix of 10
+ * (decimal) and a maximum of 4096 bit numbers (1234 decimal chars).
+ * Autosized at compile time for at least a 10 char label, a minimum radix
+ * of 10 (decimal) for a number of MBEDTLS_MPI_MAX_BITS size.
+ *
+ * This used to be statically sized to 1250 for a maximum of 4096 bit
+ * numbers (1234 decimal chars).
+ *
+ * Calculate using the formula:
+ *  MBEDTLS_MPI_RW_BUFFER_SIZE = ceil(MBEDTLS_MPI_MAX_BITS / ln(10) * ln(2)) +
+ *                                LabelSize + 6
+ */
+#define MBEDTLS_MPI_MAX_BITS_SCALE100          ( 100 * MBEDTLS_MPI_MAX_BITS )
+#define MBEDTLS_LN_2_DIV_LN_10_SCALE100                 332
+#define MBEDTLS_MPI_RW_BUFFER_SIZE             ( ((MBEDTLS_MPI_MAX_BITS_SCALE100 + MBEDTLS_LN_2_DIV_LN_10_SCALE100 - 1) / MBEDTLS_LN_2_DIV_LN_10_SCALE100) + 10 + 6 )
+
+/*
+ * Define the base integer type, architecture-wise.
+ *
+ * 32-bit integers can be forced on 64-bit arches (eg. for testing purposes)
+ * by defining MBEDTLS_HAVE_INT32 and undefining MBEDTLS_HAVE_ASM
+ */
+#if ( ! defined(MBEDTLS_HAVE_INT32) && \
+        defined(_MSC_VER) && defined(_M_AMD64) )
+#define MBEDTLS_HAVE_INT64
+typedef  int64_t mbedtls_mpi_sint;
+typedef uint64_t mbedtls_mpi_uint;
+#else
+#if ( ! defined(MBEDTLS_HAVE_INT32) &&               \
+        defined(__GNUC__) && (                          \
+        defined(__amd64__) || defined(__x86_64__)    || \
+        defined(__ppc64__) || defined(__powerpc64__) || \
+        defined(__ia64__)  || defined(__alpha__)     || \
+        (defined(__sparc__) && defined(__arch64__))  || \
+        defined(__s390x__) || defined(__mips64) ) )
+#define MBEDTLS_HAVE_INT64
+typedef  int64_t mbedtls_mpi_sint;
+typedef uint64_t mbedtls_mpi_uint;
+/* mbedtls_t_udbl defined as 128-bit unsigned int */
+typedef unsigned int mbedtls_t_udbl __attribute__((mode(TI)));
+#define MBEDTLS_HAVE_UDBL
+#else
+#define MBEDTLS_HAVE_INT32
+typedef  int32_t mbedtls_mpi_sint;
+typedef uint32_t mbedtls_mpi_uint;
+typedef uint64_t mbedtls_t_udbl;
+#define MBEDTLS_HAVE_UDBL
+#endif /* !MBEDTLS_HAVE_INT32 && __GNUC__ && 64-bit platform */
+#endif /* !MBEDTLS_HAVE_INT32 && _MSC_VER && _M_AMD64 */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          MPI structure
+ */
+typedef struct {
+    int s;              /*!<  integer sign      */
+    size_t n;           /*!<  total # of limbs  */
+    mbedtls_mpi_uint *p;          /*!<  pointer to limbs  */
+}
+mbedtls_mpi;
+
+/**
+ * \brief           Initialize one MPI (make internal references valid)
+ *                  This just makes it ready to be set or freed,
+ *                  but does not define a value for the MPI.
+ *
+ * \param X         One MPI to initialize.
+ */
+void mbedtls_mpi_init(mbedtls_mpi *X);
+
+/**
+ * \brief          Unallocate one MPI
+ *
+ * \param X        One MPI to unallocate.
+ */
+void mbedtls_mpi_free(mbedtls_mpi *X);
+
+/**
+ * \brief          Enlarge to the specified number of limbs
+ *
+ * \param X        MPI to grow
+ * \param nblimbs  The target number of limbs
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_mpi_grow(mbedtls_mpi *X, size_t nblimbs);
+
+/**
+ * \brief          Resize down, keeping at least the specified number of limbs
+ *
+ * \param X        MPI to shrink
+ * \param nblimbs  The minimum number of limbs to keep
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_mpi_shrink(mbedtls_mpi *X, size_t nblimbs);
+
+/**
+ * \brief          Copy the contents of Y into X
+ *
+ * \param X        Destination MPI
+ * \param Y        Source MPI
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_mpi_copy(mbedtls_mpi *X, const mbedtls_mpi *Y);
+
+/**
+ * \brief          Swap the contents of X and Y
+ *
+ * \param X        First MPI value
+ * \param Y        Second MPI value
+ */
+void mbedtls_mpi_swap(mbedtls_mpi *X, mbedtls_mpi *Y);
+
+/**
+ * \brief          Safe conditional assignement X = Y if assign is 1
+ *
+ * \param X        MPI to conditionally assign to
+ * \param Y        Value to be assigned
+ * \param assign   1: perform the assignment, 0: keep X's original value
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed,
+ *
+ * \note           This function is equivalent to
+ *                      if( assign ) mbedtls_mpi_copy( X, Y );
+ *                 except that it avoids leaking any information about whether
+ *                 the assignment was done or not (the above code may leak
+ *                 information through branch prediction and/or memory access
+ *                 patterns analysis).
+ */
+int mbedtls_mpi_safe_cond_assign(mbedtls_mpi *X, const mbedtls_mpi *Y, unsigned char assign);
+
+/**
+ * \brief          Safe conditional swap X <-> Y if swap is 1
+ *
+ * \param X        First mbedtls_mpi value
+ * \param Y        Second mbedtls_mpi value
+ * \param assign   1: perform the swap, 0: keep X and Y's original values
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed,
+ *
+ * \note           This function is equivalent to
+ *                      if( assign ) mbedtls_mpi_swap( X, Y );
+ *                 except that it avoids leaking any information about whether
+ *                 the assignment was done or not (the above code may leak
+ *                 information through branch prediction and/or memory access
+ *                 patterns analysis).
+ */
+int mbedtls_mpi_safe_cond_swap(mbedtls_mpi *X, mbedtls_mpi *Y, unsigned char assign);
+
+/**
+ * \brief          Set value from integer
+ *
+ * \param X        MPI to set
+ * \param z        Value to use
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_mpi_lset(mbedtls_mpi *X, mbedtls_mpi_sint z);
+
+/**
+ * \brief          Get a specific bit from X
+ *
+ * \param X        MPI to use
+ * \param pos      Zero-based index of the bit in X
+ *
+ * \return         Either a 0 or a 1
+ */
+int mbedtls_mpi_get_bit(const mbedtls_mpi *X, size_t pos);
+
+/**
+ * \brief          Set a bit of X to a specific value of 0 or 1
+ *
+ * \note           Will grow X if necessary to set a bit to 1 in a not yet
+ *                 existing limb. Will not grow if bit should be set to 0
+ *
+ * \param X        MPI to use
+ * \param pos      Zero-based index of the bit in X
+ * \param val      The value to set the bit to (0 or 1)
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed,
+ *                 MBEDTLS_ERR_MPI_BAD_INPUT_DATA if val is not 0 or 1
+ */
+int mbedtls_mpi_set_bit(mbedtls_mpi *X, size_t pos, unsigned char val);
+
+/**
+ * \brief          Return the number of zero-bits before the least significant
+ *                 '1' bit
+ *
+ * Note: Thus also the zero-based index of the least significant '1' bit
+ *
+ * \param X        MPI to use
+ */
+size_t mbedtls_mpi_lsb(const mbedtls_mpi *X);
+
+/**
+ * \brief          Return the number of bits up to and including the most
+ *                 significant '1' bit'
+ *
+ * Note: Thus also the one-based index of the most significant '1' bit
+ *
+ * \param X        MPI to use
+ */
+size_t mbedtls_mpi_bitlen(const mbedtls_mpi *X);
+
+/**
+ * \brief          Return the total size in bytes
+ *
+ * \param X        MPI to use
+ */
+size_t mbedtls_mpi_size(const mbedtls_mpi *X);
+
+/**
+ * \brief          Import from an ASCII string
+ *
+ * \param X        Destination MPI
+ * \param radix    Input numeric base
+ * \param s        Null-terminated string buffer
+ *
+ * \return         0 if successful, or a MBEDTLS_ERR_MPI_XXX error code
+ */
+int mbedtls_mpi_read_string(mbedtls_mpi *X, int radix, const char *s);
+
+/**
+ * \brief          Export into an ASCII string
+ *
+ * \param X        Source MPI
+ * \param radix    Output numeric base
+ * \param buf      Buffer to write the string to
+ * \param buflen   Length of buf
+ * \param olen     Length of the string written, including final NUL byte
+ *
+ * \return         0 if successful, or a MBEDTLS_ERR_MPI_XXX error code.
+ *                 *olen is always updated to reflect the amount
+ *                 of data that has (or would have) been written.
+ *
+ * \note           Call this function with buflen = 0 to obtain the
+ *                 minimum required buffer size in *olen.
+ */
+int mbedtls_mpi_write_string(const mbedtls_mpi *X, int radix,
+        char *buf, size_t buflen, size_t *olen);
+
+#if defined(MBEDTLS_FS_IO)
+/**
+ * \brief          Read X from an opened file
+ *
+ * \param X        Destination MPI
+ * \param radix    Input numeric base
+ * \param fin      Input file handle
+ *
+ * \return         0 if successful, MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL if
+ *                 the file read buffer is too small or a
+ *                 MBEDTLS_ERR_MPI_XXX error code
+ */
+int mbedtls_mpi_read_file(mbedtls_mpi *X, int radix, FILE *fin);
+
+/**
+ * \brief          Write X into an opened file, or stdout if fout is NULL
+ *
+ * \param p        Prefix, can be NULL
+ * \param X        Source MPI
+ * \param radix    Output numeric base
+ * \param fout     Output file handle (can be NULL)
+ *
+ * \return         0 if successful, or a MBEDTLS_ERR_MPI_XXX error code
+ *
+ * \note           Set fout == NULL to print X on the console.
+ */
+int mbedtls_mpi_write_file(const char *p, const mbedtls_mpi *X, int radix, FILE *fout);
+#endif /* MBEDTLS_FS_IO */
+
+/**
+ * \brief          Import X from unsigned binary data, big endian
+ *
+ * \param X        Destination MPI
+ * \param buf      Input buffer
+ * \param buflen   Input buffer size
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_mpi_read_binary(mbedtls_mpi *X, const unsigned char *buf, size_t buflen);
+
+/**
+ * \brief          Export X into unsigned binary data, big endian.
+ *                 Always fills the whole buffer, which will start with zeros
+ *                 if the number is smaller.
+ *
+ * \param X        Source MPI
+ * \param buf      Output buffer
+ * \param buflen   Output buffer size
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL if buf isn't large enough
+ */
+int mbedtls_mpi_write_binary(const mbedtls_mpi *X, unsigned char *buf, size_t buflen);
+
+/**
+ * \brief          Left-shift: X <<= count
+ *
+ * \param X        MPI to shift
+ * \param count    Amount to shift
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_mpi_shift_l(mbedtls_mpi *X, size_t count);
+
+/**
+ * \brief          Right-shift: X >>= count
+ *
+ * \param X        MPI to shift
+ * \param count    Amount to shift
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_mpi_shift_r(mbedtls_mpi *X, size_t count);
+
+/**
+ * \brief          Compare unsigned values
+ *
+ * \param X        Left-hand MPI
+ * \param Y        Right-hand MPI
+ *
+ * \return         1 if |X| is greater than |Y|,
+ *                -1 if |X| is lesser  than |Y| or
+ *                 0 if |X| is equal to |Y|
+ */
+int mbedtls_mpi_cmp_abs(const mbedtls_mpi *X, const mbedtls_mpi *Y);
+
+/**
+ * \brief          Compare signed values
+ *
+ * \param X        Left-hand MPI
+ * \param Y        Right-hand MPI
+ *
+ * \return         1 if X is greater than Y,
+ *                -1 if X is lesser  than Y or
+ *                 0 if X is equal to Y
+ */
+int mbedtls_mpi_cmp_mpi(const mbedtls_mpi *X, const mbedtls_mpi *Y);
+
+/**
+ * \brief          Compare signed values
+ *
+ * \param X        Left-hand MPI
+ * \param z        The integer value to compare to
+ *
+ * \return         1 if X is greater than z,
+ *                -1 if X is lesser  than z or
+ *                 0 if X is equal to z
+ */
+int mbedtls_mpi_cmp_int(const mbedtls_mpi *X, mbedtls_mpi_sint z);
+
+/**
+ * \brief          Unsigned addition: X = |A| + |B|
+ *
+ * \param X        Destination MPI
+ * \param A        Left-hand MPI
+ * \param B        Right-hand MPI
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_mpi_add_abs(mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B);
+
+/**
+ * \brief          Unsigned subtraction: X = |A| - |B|
+ *
+ * \param X        Destination MPI
+ * \param A        Left-hand MPI
+ * \param B        Right-hand MPI
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_NEGATIVE_VALUE if B is greater than A
+ */
+int mbedtls_mpi_sub_abs(mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B);
+
+/**
+ * \brief          Signed addition: X = A + B
+ *
+ * \param X        Destination MPI
+ * \param A        Left-hand MPI
+ * \param B        Right-hand MPI
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_mpi_add_mpi(mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B);
+
+/**
+ * \brief          Signed subtraction: X = A - B
+ *
+ * \param X        Destination MPI
+ * \param A        Left-hand MPI
+ * \param B        Right-hand MPI
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_mpi_sub_mpi(mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B);
+
+/**
+ * \brief          Signed addition: X = A + b
+ *
+ * \param X        Destination MPI
+ * \param A        Left-hand MPI
+ * \param b        The integer value to add
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_mpi_add_int(mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_sint b);
+
+/**
+ * \brief          Signed subtraction: X = A - b
+ *
+ * \param X        Destination MPI
+ * \param A        Left-hand MPI
+ * \param b        The integer value to subtract
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_mpi_sub_int(mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_sint b);
+
+/**
+ * \brief          Baseline multiplication: X = A * B
+ *
+ * \param X        Destination MPI
+ * \param A        Left-hand MPI
+ * \param B        Right-hand MPI
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_mpi_mul_mpi(mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *B);
+
+/**
+ * \brief          Baseline multiplication: X = A * b
+ *
+ * \param X        Destination MPI
+ * \param A        Left-hand MPI
+ * \param b        The unsigned integer value to multiply with
+ *
+ * \note           b is unsigned
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_mpi_mul_int(mbedtls_mpi *X, const mbedtls_mpi *A, mbedtls_mpi_uint b);
+
+/**
+ * \brief          Division by mbedtls_mpi: A = Q * B + R
+ *
+ * \param Q        Destination MPI for the quotient
+ * \param R        Destination MPI for the rest value
+ * \param A        Left-hand MPI
+ * \param B        Right-hand MPI
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed,
+ *                 MBEDTLS_ERR_MPI_DIVISION_BY_ZERO if B == 0
+ *
+ * \note           Either Q or R can be NULL.
+ */
+int mbedtls_mpi_div_mpi(mbedtls_mpi *Q, mbedtls_mpi *R, const mbedtls_mpi *A, const mbedtls_mpi *B);
+
+/**
+ * \brief          Division by int: A = Q * b + R
+ *
+ * \param Q        Destination MPI for the quotient
+ * \param R        Destination MPI for the rest value
+ * \param A        Left-hand MPI
+ * \param b        Integer to divide by
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed,
+ *                 MBEDTLS_ERR_MPI_DIVISION_BY_ZERO if b == 0
+ *
+ * \note           Either Q or R can be NULL.
+ */
+int mbedtls_mpi_div_int(mbedtls_mpi *Q, mbedtls_mpi *R, const mbedtls_mpi *A, mbedtls_mpi_sint b);
+
+/**
+ * \brief          Modulo: R = A mod B
+ *
+ * \param R        Destination MPI for the rest value
+ * \param A        Left-hand MPI
+ * \param B        Right-hand MPI
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed,
+ *                 MBEDTLS_ERR_MPI_DIVISION_BY_ZERO if B == 0,
+ *                 MBEDTLS_ERR_MPI_NEGATIVE_VALUE if B < 0
+ */
+int mbedtls_mpi_mod_mpi(mbedtls_mpi *R, const mbedtls_mpi *A, const mbedtls_mpi *B);
+
+/**
+ * \brief          Modulo: r = A mod b
+ *
+ * \param r        Destination mbedtls_mpi_uint
+ * \param A        Left-hand MPI
+ * \param b        Integer to divide by
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed,
+ *                 MBEDTLS_ERR_MPI_DIVISION_BY_ZERO if b == 0,
+ *                 MBEDTLS_ERR_MPI_NEGATIVE_VALUE if b < 0
+ */
+int mbedtls_mpi_mod_int(mbedtls_mpi_uint *r, const mbedtls_mpi *A, mbedtls_mpi_sint b);
+
+/**
+ * \brief          Sliding-window exponentiation: X = A^E mod N
+ *
+ * \param X        Destination MPI
+ * \param A        Left-hand MPI
+ * \param E        Exponent MPI
+ * \param N        Modular MPI
+ * \param _RR      Speed-up MPI used for recalculations
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed,
+ *                 MBEDTLS_ERR_MPI_BAD_INPUT_DATA if N is negative or even or
+ *                 if E is negative
+ *
+ * \note           _RR is used to avoid re-computing R*R mod N across
+ *                 multiple calls, which speeds up things a bit. It can
+ *                 be set to NULL if the extra performance is unneeded.
+ */
+int mbedtls_mpi_exp_mod(mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *E, const mbedtls_mpi *N,
+                                    mbedtls_mpi *_RR);
+
+/**
+ * \brief          Fill an MPI X with size bytes of random
+ *
+ * \param X        Destination MPI
+ * \param size     Size in bytes
+ * \param f_rng    RNG function
+ * \param p_rng    RNG parameter
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_mpi_fill_random(mbedtls_mpi *X, size_t size,
+                                        int (*f_rng)(void *, unsigned char *, size_t),
+                                        void *p_rng);
+
+/**
+ * \brief          Greatest common divisor: G = gcd(A, B)
+ *
+ * \param G        Destination MPI
+ * \param A        Left-hand MPI
+ * \param B        Right-hand MPI
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_mpi_gcd(mbedtls_mpi *G, const mbedtls_mpi *A, const mbedtls_mpi *B);
+
+/**
+ * \brief          Modular inverse: X = A^-1 mod N
+ *
+ * \param X        Destination MPI
+ * \param A        Left-hand MPI
+ * \param N        Right-hand MPI
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed,
+ *                 MBEDTLS_ERR_MPI_BAD_INPUT_DATA if N is negative or nil
+                   MBEDTLS_ERR_MPI_NOT_ACCEPTABLE if A has no inverse mod N
+ */
+int mbedtls_mpi_inv_mod(mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi *N);
+
+/**
+ * \brief          Miller-Rabin primality test
+ *
+ * \param X        MPI to check
+ * \param f_rng    RNG function
+ * \param p_rng    RNG parameter
+ *
+ * \return         0 if successful (probably prime),
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed,
+ *                 MBEDTLS_ERR_MPI_NOT_ACCEPTABLE if X is not prime
+ */
+int mbedtls_mpi_is_prime(const mbedtls_mpi *X,
+                                     int (*f_rng)(void *, unsigned char *, size_t),
+                                     void *p_rng);
+
+/**
+ * \brief          Prime number generation
+ *
+ * \param X        Destination MPI
+ * \param nbits    Required size of X in bits
+ *                 ( 3 <= nbits <= MBEDTLS_MPI_MAX_BITS )
+ * \param dh_flag  If 1, then (X-1)/2 will be prime too
+ * \param f_rng    RNG function
+ * \param p_rng    RNG parameter
+ *
+ * \return         0 if successful (probably prime),
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed,
+ *                 MBEDTLS_ERR_MPI_BAD_INPUT_DATA if nbits is < 3
+ */
+int mbedtls_mpi_gen_prime(mbedtls_mpi *X, size_t nbits, int dh_flag,
+                                      int (*f_rng)(void *, unsigned char *, size_t),
+                                      void *p_rng);
+
+/**
+ * \brief          Checkup routine
+ *
+ * \return         0 if successful, or 1 if the test failed
+ */
+int mbedtls_mpi_self_test(int verbose);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* bignum.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/bn_mul.h

@@ -0,0 +1,869 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+/*
+ *      Multiply source vector [s] with b, add result
+ *       to destination vector [d] and set carry c.
+ *
+ *      Currently supports:
+ *
+ *         . IA-32 (386+)         . AMD64 / EM64T
+ *         . IA-32 (SSE2)         . Motorola 68000
+ *         . PowerPC, 32-bit      . MicroBlaze
+ *         . PowerPC, 64-bit      . TriCore
+ *         . SPARC v8             . ARM v3+
+ *         . Alpha                . MIPS32
+ *         . C, longlong          . C, generic
+ */
+#ifndef MBEDTLS_BN_MUL_H
+#define MBEDTLS_BN_MUL_H
+
+#include "bignum.h"
+
+#if defined(MBEDTLS_HAVE_ASM)
+
+#ifndef asm
+#define asm __asm
+#endif
+
+/* armcc5 --gnu defines __GNUC__ but doesn't support GNU's extended asm */
+#if defined(__GNUC__) && \
+    ( !defined(__ARMCC_VERSION) || __ARMCC_VERSION >= 6000000 )
+#if defined(__i386__)
+
+#define MULADDC_INIT                        \
+    asm(                                    \
+        "movl   %%ebx, %0           \n\t"   \
+        "movl   %5, %%esi           \n\t"   \
+        "movl   %6, %%edi           \n\t"   \
+        "movl   %7, %%ecx           \n\t"   \
+        "movl   %8, %%ebx           \n\t"
+
+#define MULADDC_CORE                        \
+        "lodsl                      \n\t"   \
+        "mull   %%ebx               \n\t"   \
+        "addl   %%ecx,   %%eax      \n\t"   \
+        "adcl   $0,      %%edx      \n\t"   \
+        "addl   (%%edi), %%eax      \n\t"   \
+        "adcl   $0,      %%edx      \n\t"   \
+        "movl   %%edx,   %%ecx      \n\t"   \
+        "stosl                      \n\t"
+
+#if defined(MBEDTLS_HAVE_SSE2)
+
+#define MULADDC_HUIT                            \
+        "movd     %%ecx,     %%mm1      \n\t"   \
+        "movd     %%ebx,     %%mm0      \n\t"   \
+        "movd     (%%edi),   %%mm3      \n\t"   \
+        "paddq    %%mm3,     %%mm1      \n\t"   \
+        "movd     (%%esi),   %%mm2      \n\t"   \
+        "pmuludq  %%mm0,     %%mm2      \n\t"   \
+        "movd     4(%%esi),  %%mm4      \n\t"   \
+        "pmuludq  %%mm0,     %%mm4      \n\t"   \
+        "movd     8(%%esi),  %%mm6      \n\t"   \
+        "pmuludq  %%mm0,     %%mm6      \n\t"   \
+        "movd     12(%%esi), %%mm7      \n\t"   \
+        "pmuludq  %%mm0,     %%mm7      \n\t"   \
+        "paddq    %%mm2,     %%mm1      \n\t"   \
+        "movd     4(%%edi),  %%mm3      \n\t"   \
+        "paddq    %%mm4,     %%mm3      \n\t"   \
+        "movd     8(%%edi),  %%mm5      \n\t"   \
+        "paddq    %%mm6,     %%mm5      \n\t"   \
+        "movd     12(%%edi), %%mm4      \n\t"   \
+        "paddq    %%mm4,     %%mm7      \n\t"   \
+        "movd     %%mm1,     (%%edi)    \n\t"   \
+        "movd     16(%%esi), %%mm2      \n\t"   \
+        "pmuludq  %%mm0,     %%mm2      \n\t"   \
+        "psrlq    $32,       %%mm1      \n\t"   \
+        "movd     20(%%esi), %%mm4      \n\t"   \
+        "pmuludq  %%mm0,     %%mm4      \n\t"   \
+        "paddq    %%mm3,     %%mm1      \n\t"   \
+        "movd     24(%%esi), %%mm6      \n\t"   \
+        "pmuludq  %%mm0,     %%mm6      \n\t"   \
+        "movd     %%mm1,     4(%%edi)   \n\t"   \
+        "psrlq    $32,       %%mm1      \n\t"   \
+        "movd     28(%%esi), %%mm3      \n\t"   \
+        "pmuludq  %%mm0,     %%mm3      \n\t"   \
+        "paddq    %%mm5,     %%mm1      \n\t"   \
+        "movd     16(%%edi), %%mm5      \n\t"   \
+        "paddq    %%mm5,     %%mm2      \n\t"   \
+        "movd     %%mm1,     8(%%edi)   \n\t"   \
+        "psrlq    $32,       %%mm1      \n\t"   \
+        "paddq    %%mm7,     %%mm1      \n\t"   \
+        "movd     20(%%edi), %%mm5      \n\t"   \
+        "paddq    %%mm5,     %%mm4      \n\t"   \
+        "movd     %%mm1,     12(%%edi)  \n\t"   \
+        "psrlq    $32,       %%mm1      \n\t"   \
+        "paddq    %%mm2,     %%mm1      \n\t"   \
+        "movd     24(%%edi), %%mm5      \n\t"   \
+        "paddq    %%mm5,     %%mm6      \n\t"   \
+        "movd     %%mm1,     16(%%edi)  \n\t"   \
+        "psrlq    $32,       %%mm1      \n\t"   \
+        "paddq    %%mm4,     %%mm1      \n\t"   \
+        "movd     28(%%edi), %%mm5      \n\t"   \
+        "paddq    %%mm5,     %%mm3      \n\t"   \
+        "movd     %%mm1,     20(%%edi)  \n\t"   \
+        "psrlq    $32,       %%mm1      \n\t"   \
+        "paddq    %%mm6,     %%mm1      \n\t"   \
+        "movd     %%mm1,     24(%%edi)  \n\t"   \
+        "psrlq    $32,       %%mm1      \n\t"   \
+        "paddq    %%mm3,     %%mm1      \n\t"   \
+        "movd     %%mm1,     28(%%edi)  \n\t"   \
+        "addl     $32,       %%edi      \n\t"   \
+        "addl     $32,       %%esi      \n\t"   \
+        "psrlq    $32,       %%mm1      \n\t"   \
+        "movd     %%mm1,     %%ecx      \n\t"
+
+#define MULADDC_STOP                    \
+        "emms                   \n\t"   \
+        "movl   %4, %%ebx       \n\t"   \
+        "movl   %%ecx, %1       \n\t"   \
+        "movl   %%edi, %2       \n\t"   \
+        "movl   %%esi, %3       \n\t"   \
+        : "=m" (t), "=m" (c), "=m" (d), "=m" (s)        \
+        : "m" (t), "m" (s), "m" (d), "m" (c), "m" (b)   \
+        : "eax", "ecx", "edx", "esi", "edi"             \
+    );
+
+#else
+
+#define MULADDC_STOP                    \
+        "movl   %4, %%ebx       \n\t"   \
+        "movl   %%ecx, %1       \n\t"   \
+        "movl   %%edi, %2       \n\t"   \
+        "movl   %%esi, %3       \n\t"   \
+        : "=m" (t), "=m" (c), "=m" (d), "=m" (s)        \
+        : "m" (t), "m" (s), "m" (d), "m" (c), "m" (b)   \
+        : "eax", "ecx", "edx", "esi", "edi"             \
+    );
+#endif /* SSE2 */
+#endif /* i386 */
+
+#if defined(__amd64__) || defined (__x86_64__)
+
+#define MULADDC_INIT                        \
+    asm(                                    \
+        "xorq   %%r8, %%r8          \n\t"
+
+#define MULADDC_CORE                        \
+        "movq   (%%rsi), %%rax      \n\t"   \
+        "mulq   %%rbx               \n\t"   \
+        "addq   $8,      %%rsi      \n\t"   \
+        "addq   %%rcx,   %%rax      \n\t"   \
+        "movq   %%r8,    %%rcx      \n\t"   \
+        "adcq   $0,      %%rdx      \n\t"   \
+        "nop                        \n\t"   \
+        "addq   %%rax,   (%%rdi)    \n\t"   \
+        "adcq   %%rdx,   %%rcx      \n\t"   \
+        "addq   $8,      %%rdi      \n\t"
+
+#define MULADDC_STOP                        \
+        : "+c" (c), "+D" (d), "+S" (s)      \
+        : "b" (b)                           \
+        : "rax", "rdx", "r8"                \
+    );
+
+#endif /* AMD64 */
+
+#if defined(__mc68020__) || defined(__mcpu32__)
+
+#define MULADDC_INIT                    \
+    asm(                                \
+        "movl   %3, %%a2        \n\t"   \
+        "movl   %4, %%a3        \n\t"   \
+        "movl   %5, %%d3        \n\t"   \
+        "movl   %6, %%d2        \n\t"   \
+        "moveq  #0, %%d0        \n\t"
+
+#define MULADDC_CORE                    \
+        "movel  %%a2@+, %%d1    \n\t"   \
+        "mulul  %%d2, %%d4:%%d1 \n\t"   \
+        "addl   %%d3, %%d1      \n\t"   \
+        "addxl  %%d0, %%d4      \n\t"   \
+        "moveq  #0,   %%d3      \n\t"   \
+        "addl   %%d1, %%a3@+    \n\t"   \
+        "addxl  %%d4, %%d3      \n\t"
+
+#define MULADDC_STOP                    \
+        "movl   %%d3, %0        \n\t"   \
+        "movl   %%a3, %1        \n\t"   \
+        "movl   %%a2, %2        \n\t"   \
+        : "=m" (c), "=m" (d), "=m" (s)              \
+        : "m" (s), "m" (d), "m" (c), "m" (b)        \
+        : "d0", "d1", "d2", "d3", "d4", "a2", "a3"  \
+    );
+
+#define MULADDC_HUIT                        \
+        "movel  %%a2@+,  %%d1       \n\t"   \
+        "mulul  %%d2,    %%d4:%%d1  \n\t"   \
+        "addxl  %%d3,    %%d1       \n\t"   \
+        "addxl  %%d0,    %%d4       \n\t"   \
+        "addl   %%d1,    %%a3@+     \n\t"   \
+        "movel  %%a2@+,  %%d1       \n\t"   \
+        "mulul  %%d2,    %%d3:%%d1  \n\t"   \
+        "addxl  %%d4,    %%d1       \n\t"   \
+        "addxl  %%d0,    %%d3       \n\t"   \
+        "addl   %%d1,    %%a3@+     \n\t"   \
+        "movel  %%a2@+,  %%d1       \n\t"   \
+        "mulul  %%d2,    %%d4:%%d1  \n\t"   \
+        "addxl  %%d3,    %%d1       \n\t"   \
+        "addxl  %%d0,    %%d4       \n\t"   \
+        "addl   %%d1,    %%a3@+     \n\t"   \
+        "movel  %%a2@+,  %%d1       \n\t"   \
+        "mulul  %%d2,    %%d3:%%d1  \n\t"   \
+        "addxl  %%d4,    %%d1       \n\t"   \
+        "addxl  %%d0,    %%d3       \n\t"   \
+        "addl   %%d1,    %%a3@+     \n\t"   \
+        "movel  %%a2@+,  %%d1       \n\t"   \
+        "mulul  %%d2,    %%d4:%%d1  \n\t"   \
+        "addxl  %%d3,    %%d1       \n\t"   \
+        "addxl  %%d0,    %%d4       \n\t"   \
+        "addl   %%d1,    %%a3@+     \n\t"   \
+        "movel  %%a2@+,  %%d1       \n\t"   \
+        "mulul  %%d2,    %%d3:%%d1  \n\t"   \
+        "addxl  %%d4,    %%d1       \n\t"   \
+        "addxl  %%d0,    %%d3       \n\t"   \
+        "addl   %%d1,    %%a3@+     \n\t"   \
+        "movel  %%a2@+,  %%d1       \n\t"   \
+        "mulul  %%d2,    %%d4:%%d1  \n\t"   \
+        "addxl  %%d3,    %%d1       \n\t"   \
+        "addxl  %%d0,    %%d4       \n\t"   \
+        "addl   %%d1,    %%a3@+     \n\t"   \
+        "movel  %%a2@+,  %%d1       \n\t"   \
+        "mulul  %%d2,    %%d3:%%d1  \n\t"   \
+        "addxl  %%d4,    %%d1       \n\t"   \
+        "addxl  %%d0,    %%d3       \n\t"   \
+        "addl   %%d1,    %%a3@+     \n\t"   \
+        "addxl  %%d0,    %%d3       \n\t"
+
+#endif /* MC68000 */
+
+#if defined(__powerpc64__) || defined(__ppc64__)
+
+#if defined(__MACH__) && defined(__APPLE__)
+
+#define MULADDC_INIT                        \
+    asm(                                    \
+        "ld     r3, %3              \n\t"   \
+        "ld     r4, %4              \n\t"   \
+        "ld     r5, %5              \n\t"   \
+        "ld     r6, %6              \n\t"   \
+        "addi   r3, r3, -8          \n\t"   \
+        "addi   r4, r4, -8          \n\t"   \
+        "addic  r5, r5,  0          \n\t"
+
+#define MULADDC_CORE                        \
+        "ldu    r7, 8(r3)           \n\t"   \
+        "mulld  r8, r7, r6          \n\t"   \
+        "mulhdu r9, r7, r6          \n\t"   \
+        "adde   r8, r8, r5          \n\t"   \
+        "ld     r7, 8(r4)           \n\t"   \
+        "addze  r5, r9              \n\t"   \
+        "addc   r8, r8, r7          \n\t"   \
+        "stdu   r8, 8(r4)           \n\t"
+
+#define MULADDC_STOP                        \
+        "addze  r5, r5              \n\t"   \
+        "addi   r4, r4, 8           \n\t"   \
+        "addi   r3, r3, 8           \n\t"   \
+        "std    r5, %0              \n\t"   \
+        "std    r4, %1              \n\t"   \
+        "std    r3, %2              \n\t"   \
+        : "=m" (c), "=m" (d), "=m" (s)              \
+        : "m" (s), "m" (d), "m" (c), "m" (b)        \
+        : "r3", "r4", "r5", "r6", "r7", "r8", "r9"  \
+    );
+
+
+#else /* __MACH__ && __APPLE__ */
+
+#define MULADDC_INIT                        \
+    asm(                                    \
+        "ld     %%r3, %3            \n\t"   \
+        "ld     %%r4, %4            \n\t"   \
+        "ld     %%r5, %5            \n\t"   \
+        "ld     %%r6, %6            \n\t"   \
+        "addi   %%r3, %%r3, -8      \n\t"   \
+        "addi   %%r4, %%r4, -8      \n\t"   \
+        "addic  %%r5, %%r5,  0      \n\t"
+
+#define MULADDC_CORE                        \
+        "ldu    %%r7, 8(%%r3)       \n\t"   \
+        "mulld  %%r8, %%r7, %%r6    \n\t"   \
+        "mulhdu %%r9, %%r7, %%r6    \n\t"   \
+        "adde   %%r8, %%r8, %%r5    \n\t"   \
+        "ld     %%r7, 8(%%r4)       \n\t"   \
+        "addze  %%r5, %%r9          \n\t"   \
+        "addc   %%r8, %%r8, %%r7    \n\t"   \
+        "stdu   %%r8, 8(%%r4)       \n\t"
+
+#define MULADDC_STOP                        \
+        "addze  %%r5, %%r5          \n\t"   \
+        "addi   %%r4, %%r4, 8       \n\t"   \
+        "addi   %%r3, %%r3, 8       \n\t"   \
+        "std    %%r5, %0            \n\t"   \
+        "std    %%r4, %1            \n\t"   \
+        "std    %%r3, %2            \n\t"   \
+        : "=m" (c), "=m" (d), "=m" (s)              \
+        : "m" (s), "m" (d), "m" (c), "m" (b)        \
+        : "r3", "r4", "r5", "r6", "r7", "r8", "r9"  \
+    );
+
+#endif /* __MACH__ && __APPLE__ */
+
+#elif defined(__powerpc__) || defined(__ppc__) /* end PPC64/begin PPC32  */
+
+#if defined(__MACH__) && defined(__APPLE__)
+
+#define MULADDC_INIT                    \
+    asm(                                \
+        "lwz    r3, %3          \n\t"   \
+        "lwz    r4, %4          \n\t"   \
+        "lwz    r5, %5          \n\t"   \
+        "lwz    r6, %6          \n\t"   \
+        "addi   r3, r3, -4      \n\t"   \
+        "addi   r4, r4, -4      \n\t"   \
+        "addic  r5, r5,  0      \n\t"
+
+#define MULADDC_CORE                    \
+        "lwzu   r7, 4(r3)       \n\t"   \
+        "mullw  r8, r7, r6      \n\t"   \
+        "mulhwu r9, r7, r6      \n\t"   \
+        "adde   r8, r8, r5      \n\t"   \
+        "lwz    r7, 4(r4)       \n\t"   \
+        "addze  r5, r9          \n\t"   \
+        "addc   r8, r8, r7      \n\t"   \
+        "stwu   r8, 4(r4)       \n\t"
+
+#define MULADDC_STOP                    \
+        "addze  r5, r5          \n\t"   \
+        "addi   r4, r4, 4       \n\t"   \
+        "addi   r3, r3, 4       \n\t"   \
+        "stw    r5, %0          \n\t"   \
+        "stw    r4, %1          \n\t"   \
+        "stw    r3, %2          \n\t"   \
+        : "=m" (c), "=m" (d), "=m" (s)              \
+        : "m" (s), "m" (d), "m" (c), "m" (b)        \
+        : "r3", "r4", "r5", "r6", "r7", "r8", "r9"  \
+    );
+
+#else /* __MACH__ && __APPLE__ */
+
+#define MULADDC_INIT                        \
+    asm(                                    \
+        "lwz    %%r3, %3            \n\t"   \
+        "lwz    %%r4, %4            \n\t"   \
+        "lwz    %%r5, %5            \n\t"   \
+        "lwz    %%r6, %6            \n\t"   \
+        "addi   %%r3, %%r3, -4      \n\t"   \
+        "addi   %%r4, %%r4, -4      \n\t"   \
+        "addic  %%r5, %%r5,  0      \n\t"
+
+#define MULADDC_CORE                        \
+        "lwzu   %%r7, 4(%%r3)       \n\t"   \
+        "mullw  %%r8, %%r7, %%r6    \n\t"   \
+        "mulhwu %%r9, %%r7, %%r6    \n\t"   \
+        "adde   %%r8, %%r8, %%r5    \n\t"   \
+        "lwz    %%r7, 4(%%r4)       \n\t"   \
+        "addze  %%r5, %%r9          \n\t"   \
+        "addc   %%r8, %%r8, %%r7    \n\t"   \
+        "stwu   %%r8, 4(%%r4)       \n\t"
+
+#define MULADDC_STOP                        \
+        "addze  %%r5, %%r5          \n\t"   \
+        "addi   %%r4, %%r4, 4       \n\t"   \
+        "addi   %%r3, %%r3, 4       \n\t"   \
+        "stw    %%r5, %0            \n\t"   \
+        "stw    %%r4, %1            \n\t"   \
+        "stw    %%r3, %2            \n\t"   \
+        : "=m" (c), "=m" (d), "=m" (s)              \
+        : "m" (s), "m" (d), "m" (c), "m" (b)        \
+        : "r3", "r4", "r5", "r6", "r7", "r8", "r9"  \
+    );
+
+#endif /* __MACH__ && __APPLE__ */
+
+#endif /* PPC32 */
+
+/*
+ * The Sparc(64) assembly is reported to be broken.
+ * Disable it for now, until we're able to fix it.
+ */
+#if 0 && defined(__sparc__)
+#if defined(__sparc64__)
+
+#define MULADDC_INIT                                    \
+    asm(                                                \
+                "ldx     %3, %%o0               \n\t"   \
+                "ldx     %4, %%o1               \n\t"   \
+                "ld      %5, %%o2               \n\t"   \
+                "ld      %6, %%o3               \n\t"
+
+#define MULADDC_CORE                                    \
+                "ld      [%%o0], %%o4           \n\t"   \
+                "inc     4, %%o0                \n\t"   \
+                "ld      [%%o1], %%o5           \n\t"   \
+                "umul    %%o3, %%o4, %%o4       \n\t"   \
+                "addcc   %%o4, %%o2, %%o4       \n\t"   \
+                "rd      %%y, %%g1              \n\t"   \
+                "addx    %%g1, 0, %%g1          \n\t"   \
+                "addcc   %%o4, %%o5, %%o4       \n\t"   \
+                "st      %%o4, [%%o1]           \n\t"   \
+                "addx    %%g1, 0, %%o2          \n\t"   \
+                "inc     4, %%o1                \n\t"
+
+        #define MULADDC_STOP                            \
+                "st      %%o2, %0               \n\t"   \
+                "stx     %%o1, %1               \n\t"   \
+                "stx     %%o0, %2               \n\t"   \
+        : "=m" (c), "=m" (d), "=m" (s)          \
+        : "m" (s), "m" (d), "m" (c), "m" (b)    \
+        : "g1", "o0", "o1", "o2", "o3", "o4",   \
+          "o5"                                  \
+        );
+
+#else /* __sparc64__ */
+
+#define MULADDC_INIT                                    \
+    asm(                                                \
+                "ld      %3, %%o0               \n\t"   \
+                "ld      %4, %%o1               \n\t"   \
+                "ld      %5, %%o2               \n\t"   \
+                "ld      %6, %%o3               \n\t"
+
+#define MULADDC_CORE                                    \
+                "ld      [%%o0], %%o4           \n\t"   \
+                "inc     4, %%o0                \n\t"   \
+                "ld      [%%o1], %%o5           \n\t"   \
+                "umul    %%o3, %%o4, %%o4       \n\t"   \
+                "addcc   %%o4, %%o2, %%o4       \n\t"   \
+                "rd      %%y, %%g1              \n\t"   \
+                "addx    %%g1, 0, %%g1          \n\t"   \
+                "addcc   %%o4, %%o5, %%o4       \n\t"   \
+                "st      %%o4, [%%o1]           \n\t"   \
+                "addx    %%g1, 0, %%o2          \n\t"   \
+                "inc     4, %%o1                \n\t"
+
+#define MULADDC_STOP                                    \
+                "st      %%o2, %0               \n\t"   \
+                "st      %%o1, %1               \n\t"   \
+                "st      %%o0, %2               \n\t"   \
+        : "=m" (c), "=m" (d), "=m" (s)          \
+        : "m" (s), "m" (d), "m" (c), "m" (b)    \
+        : "g1", "o0", "o1", "o2", "o3", "o4",   \
+          "o5"                                  \
+        );
+
+#endif /* __sparc64__ */
+#endif /* __sparc__ */
+
+#if defined(__microblaze__) || defined(microblaze)
+
+#define MULADDC_INIT                    \
+    asm(                                \
+        "lwi   r3,   %3         \n\t"   \
+        "lwi   r4,   %4         \n\t"   \
+        "lwi   r5,   %5         \n\t"   \
+        "lwi   r6,   %6         \n\t"   \
+        "andi  r7,   r6, 0xffff \n\t"   \
+        "bsrli r6,   r6, 16     \n\t"
+
+#define MULADDC_CORE                    \
+        "lhui  r8,   r3,   0    \n\t"   \
+        "addi  r3,   r3,   2    \n\t"   \
+        "lhui  r9,   r3,   0    \n\t"   \
+        "addi  r3,   r3,   2    \n\t"   \
+        "mul   r10,  r9,  r6    \n\t"   \
+        "mul   r11,  r8,  r7    \n\t"   \
+        "mul   r12,  r9,  r7    \n\t"   \
+        "mul   r13,  r8,  r6    \n\t"   \
+        "bsrli  r8, r10,  16    \n\t"   \
+        "bsrli  r9, r11,  16    \n\t"   \
+        "add   r13, r13,  r8    \n\t"   \
+        "add   r13, r13,  r9    \n\t"   \
+        "bslli r10, r10,  16    \n\t"   \
+        "bslli r11, r11,  16    \n\t"   \
+        "add   r12, r12, r10    \n\t"   \
+        "addc  r13, r13,  r0    \n\t"   \
+        "add   r12, r12, r11    \n\t"   \
+        "addc  r13, r13,  r0    \n\t"   \
+        "lwi   r10,  r4,   0    \n\t"   \
+        "add   r12, r12, r10    \n\t"   \
+        "addc  r13, r13,  r0    \n\t"   \
+        "add   r12, r12,  r5    \n\t"   \
+        "addc   r5, r13,  r0    \n\t"   \
+        "swi   r12,  r4,   0    \n\t"   \
+        "addi   r4,  r4,   4    \n\t"
+
+#define MULADDC_STOP                    \
+        "swi   r5,   %0         \n\t"   \
+        "swi   r4,   %1         \n\t"   \
+        "swi   r3,   %2         \n\t"   \
+        : "=m" (c), "=m" (d), "=m" (s)              \
+        : "m" (s), "m" (d), "m" (c), "m" (b)        \
+        : "r3", "r4"  "r5", "r6", "r7", "r8",       \
+          "r9", "r10", "r11", "r12", "r13"          \
+    );
+
+#endif /* MicroBlaze */
+
+#if defined(__tricore__)
+
+#define MULADDC_INIT                            \
+    asm(                                        \
+        "ld.a   %%a2, %3                \n\t"   \
+        "ld.a   %%a3, %4                \n\t"   \
+        "ld.w   %%d4, %5                \n\t"   \
+        "ld.w   %%d1, %6                \n\t"   \
+        "xor    %%d5, %%d5              \n\t"
+
+#define MULADDC_CORE                            \
+        "ld.w   %%d0,   [%%a2+]         \n\t"   \
+        "madd.u %%e2, %%e4, %%d0, %%d1  \n\t"   \
+        "ld.w   %%d0,   [%%a3]          \n\t"   \
+        "addx   %%d2,    %%d2,  %%d0    \n\t"   \
+        "addc   %%d3,    %%d3,    0     \n\t"   \
+        "mov    %%d4,    %%d3           \n\t"   \
+        "st.w  [%%a3+],  %%d2           \n\t"
+
+#define MULADDC_STOP                            \
+        "st.w   %0, %%d4                \n\t"   \
+        "st.a   %1, %%a3                \n\t"   \
+        "st.a   %2, %%a2                \n\t"   \
+        : "=m" (c), "=m" (d), "=m" (s)          \
+        : "m" (s), "m" (d), "m" (c), "m" (b)    \
+        : "d0", "d1", "e2", "d4", "a2", "a3"    \
+    );
+
+#endif /* TriCore */
+
+/*
+ * gcc -O0 by default uses r7 for the frame pointer, so it complains about our
+ * use of r7 below, unless -fomit-frame-pointer is passed. Unfortunately,
+ * passing that option is not easy when building with yotta.
+ *
+ * On the other hand, -fomit-frame-pointer is implied by any -Ox options with
+ * x !=0, which we can detect using __OPTIMIZE__ (which is also defined by
+ * clang and armcc5 under the same conditions).
+ *
+ * So, only use the optimized assembly below for optimized build, which avoids
+ * the build error and is pretty reasonable anyway.
+ */
+#if defined(__GNUC__) && !defined(__OPTIMIZE__)
+#define MULADDC_CANNOT_USE_R7
+#endif
+
+#if defined(__arm__) && !defined(MULADDC_CANNOT_USE_R7)
+
+#if defined(__thumb__) && !defined(__thumb2__)
+
+#define MULADDC_INIT                                    \
+    asm(                                                \
+            "ldr    r0, %3                      \n\t"   \
+            "ldr    r1, %4                      \n\t"   \
+            "ldr    r2, %5                      \n\t"   \
+            "ldr    r3, %6                      \n\t"   \
+            "lsr    r7, r3, #16                 \n\t"   \
+            "mov    r9, r7                      \n\t"   \
+            "lsl    r7, r3, #16                 \n\t"   \
+            "lsr    r7, r7, #16                 \n\t"   \
+            "mov    r8, r7                      \n\t"
+
+#define MULADDC_CORE                                    \
+            "ldmia  r0!, {r6}                   \n\t"   \
+            "lsr    r7, r6, #16                 \n\t"   \
+            "lsl    r6, r6, #16                 \n\t"   \
+            "lsr    r6, r6, #16                 \n\t"   \
+            "mov    r4, r8                      \n\t"   \
+            "mul    r4, r6                      \n\t"   \
+            "mov    r3, r9                      \n\t"   \
+            "mul    r6, r3                      \n\t"   \
+            "mov    r5, r9                      \n\t"   \
+            "mul    r5, r7                      \n\t"   \
+            "mov    r3, r8                      \n\t"   \
+            "mul    r7, r3                      \n\t"   \
+            "lsr    r3, r6, #16                 \n\t"   \
+            "add    r5, r5, r3                  \n\t"   \
+            "lsr    r3, r7, #16                 \n\t"   \
+            "add    r5, r5, r3                  \n\t"   \
+            "add    r4, r4, r2                  \n\t"   \
+            "mov    r2, #0                      \n\t"   \
+            "adc    r5, r2                      \n\t"   \
+            "lsl    r3, r6, #16                 \n\t"   \
+            "add    r4, r4, r3                  \n\t"   \
+            "adc    r5, r2                      \n\t"   \
+            "lsl    r3, r7, #16                 \n\t"   \
+            "add    r4, r4, r3                  \n\t"   \
+            "adc    r5, r2                      \n\t"   \
+            "ldr    r3, [r1]                    \n\t"   \
+            "add    r4, r4, r3                  \n\t"   \
+            "adc    r2, r5                      \n\t"   \
+            "stmia  r1!, {r4}                   \n\t"
+
+#define MULADDC_STOP                                    \
+            "str    r2, %0                      \n\t"   \
+            "str    r1, %1                      \n\t"   \
+            "str    r0, %2                      \n\t"   \
+         : "=m" (c),  "=m" (d), "=m" (s)        \
+         : "m" (s), "m" (d), "m" (c), "m" (b)   \
+         : "r0", "r1", "r2", "r3", "r4", "r5",  \
+           "r6", "r7", "r8", "r9", "cc"         \
+         );
+
+#else
+
+#define MULADDC_INIT                                    \
+    asm(                                                \
+            "ldr    r0, %3                      \n\t"   \
+            "ldr    r1, %4                      \n\t"   \
+            "ldr    r2, %5                      \n\t"   \
+            "ldr    r3, %6                      \n\t"
+
+#define MULADDC_CORE                                    \
+            "ldr    r4, [r0], #4                \n\t"   \
+            "mov    r5, #0                      \n\t"   \
+            "ldr    r6, [r1]                    \n\t"   \
+            "umlal  r2, r5, r3, r4              \n\t"   \
+            "adds   r7, r6, r2                  \n\t"   \
+            "adc    r2, r5, #0                  \n\t"   \
+            "str    r7, [r1], #4                \n\t"
+
+#define MULADDC_STOP                                    \
+            "str    r2, %0                      \n\t"   \
+            "str    r1, %1                      \n\t"   \
+            "str    r0, %2                      \n\t"   \
+         : "=m" (c),  "=m" (d), "=m" (s)        \
+         : "m" (s), "m" (d), "m" (c), "m" (b)   \
+         : "r0", "r1", "r2", "r3", "r4", "r5",  \
+           "r6", "r7", "cc"                     \
+         );
+
+#endif /* Thumb */
+
+#endif /* ARMv3 */
+
+#if defined(__alpha__)
+
+#define MULADDC_INIT                    \
+    asm(                                \
+        "ldq    $1, %3          \n\t"   \
+        "ldq    $2, %4          \n\t"   \
+        "ldq    $3, %5          \n\t"   \
+        "ldq    $4, %6          \n\t"
+
+#define MULADDC_CORE                    \
+        "ldq    $6,  0($1)      \n\t"   \
+        "addq   $1,  8, $1      \n\t"   \
+        "mulq   $6, $4, $7      \n\t"   \
+        "umulh  $6, $4, $6      \n\t"   \
+        "addq   $7, $3, $7      \n\t"   \
+        "cmpult $7, $3, $3      \n\t"   \
+        "ldq    $5,  0($2)      \n\t"   \
+        "addq   $7, $5, $7      \n\t"   \
+        "cmpult $7, $5, $5      \n\t"   \
+        "stq    $7,  0($2)      \n\t"   \
+        "addq   $2,  8, $2      \n\t"   \
+        "addq   $6, $3, $3      \n\t"   \
+        "addq   $5, $3, $3      \n\t"
+
+#define MULADDC_STOP                                    \
+        "stq    $3, %0          \n\t"   \
+        "stq    $2, %1          \n\t"   \
+        "stq    $1, %2          \n\t"   \
+        : "=m" (c), "=m" (d), "=m" (s)              \
+        : "m" (s), "m" (d), "m" (c), "m" (b)        \
+        : "$1", "$2", "$3", "$4", "$5", "$6", "$7"  \
+    );
+#endif /* Alpha */
+
+#if defined(__mips__) && !defined(__mips64)
+
+#define MULADDC_INIT                    \
+    asm(                                \
+        "lw     $10, %3         \n\t"   \
+        "lw     $11, %4         \n\t"   \
+        "lw     $12, %5         \n\t"   \
+        "lw     $13, %6         \n\t"
+
+#define MULADDC_CORE                    \
+        "lw     $14, 0($10)     \n\t"   \
+        "multu  $13, $14        \n\t"   \
+        "addi   $10, $10, 4     \n\t"   \
+        "mflo   $14             \n\t"   \
+        "mfhi   $9              \n\t"   \
+        "addu   $14, $12, $14   \n\t"   \
+        "lw     $15, 0($11)     \n\t"   \
+        "sltu   $12, $14, $12   \n\t"   \
+        "addu   $15, $14, $15   \n\t"   \
+        "sltu   $14, $15, $14   \n\t"   \
+        "addu   $12, $12, $9    \n\t"   \
+        "sw     $15, 0($11)     \n\t"   \
+        "addu   $12, $12, $14   \n\t"   \
+        "addi   $11, $11, 4     \n\t"
+
+#define MULADDC_STOP                    \
+        "sw     $12, %0         \n\t"   \
+        "sw     $11, %1         \n\t"   \
+        "sw     $10, %2         \n\t"   \
+        : "=m" (c), "=m" (d), "=m" (s)                      \
+        : "m" (s), "m" (d), "m" (c), "m" (b)                \
+        : "$9", "$10", "$11", "$12", "$13", "$14", "$15"    \
+    );
+
+#endif /* MIPS */
+#endif /* GNUC */
+
+#if (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)
+
+#define MULADDC_INIT                            \
+    __asm   mov     esi, s                      \
+    __asm   mov     edi, d                      \
+    __asm   mov     ecx, c                      \
+    __asm   mov     ebx, b
+
+#define MULADDC_CORE                            \
+    __asm   lodsd                               \
+    __asm   mul     ebx                         \
+    __asm   add     eax, ecx                    \
+    __asm   adc     edx, 0                      \
+    __asm   add     eax, [edi]                  \
+    __asm   adc     edx, 0                      \
+    __asm   mov     ecx, edx                    \
+    __asm   stosd
+
+#if defined(MBEDTLS_HAVE_SSE2)
+
+#define EMIT __asm _emit
+
+#define MULADDC_HUIT                            \
+    EMIT 0x0F  EMIT 0x6E  EMIT 0xC9             \
+    EMIT 0x0F  EMIT 0x6E  EMIT 0xC3             \
+    EMIT 0x0F  EMIT 0x6E  EMIT 0x1F             \
+    EMIT 0x0F  EMIT 0xD4  EMIT 0xCB             \
+    EMIT 0x0F  EMIT 0x6E  EMIT 0x16             \
+    EMIT 0x0F  EMIT 0xF4  EMIT 0xD0             \
+    EMIT 0x0F  EMIT 0x6E  EMIT 0x66  EMIT 0x04  \
+    EMIT 0x0F  EMIT 0xF4  EMIT 0xE0             \
+    EMIT 0x0F  EMIT 0x6E  EMIT 0x76  EMIT 0x08  \
+    EMIT 0x0F  EMIT 0xF4  EMIT 0xF0             \
+    EMIT 0x0F  EMIT 0x6E  EMIT 0x7E  EMIT 0x0C  \
+    EMIT 0x0F  EMIT 0xF4  EMIT 0xF8             \
+    EMIT 0x0F  EMIT 0xD4  EMIT 0xCA             \
+    EMIT 0x0F  EMIT 0x6E  EMIT 0x5F  EMIT 0x04  \
+    EMIT 0x0F  EMIT 0xD4  EMIT 0xDC             \
+    EMIT 0x0F  EMIT 0x6E  EMIT 0x6F  EMIT 0x08  \
+    EMIT 0x0F  EMIT 0xD4  EMIT 0xEE             \
+    EMIT 0x0F  EMIT 0x6E  EMIT 0x67  EMIT 0x0C  \
+    EMIT 0x0F  EMIT 0xD4  EMIT 0xFC             \
+    EMIT 0x0F  EMIT 0x7E  EMIT 0x0F             \
+    EMIT 0x0F  EMIT 0x6E  EMIT 0x56  EMIT 0x10  \
+    EMIT 0x0F  EMIT 0xF4  EMIT 0xD0             \
+    EMIT 0x0F  EMIT 0x73  EMIT 0xD1  EMIT 0x20  \
+    EMIT 0x0F  EMIT 0x6E  EMIT 0x66  EMIT 0x14  \
+    EMIT 0x0F  EMIT 0xF4  EMIT 0xE0             \
+    EMIT 0x0F  EMIT 0xD4  EMIT 0xCB             \
+    EMIT 0x0F  EMIT 0x6E  EMIT 0x76  EMIT 0x18  \
+    EMIT 0x0F  EMIT 0xF4  EMIT 0xF0             \
+    EMIT 0x0F  EMIT 0x7E  EMIT 0x4F  EMIT 0x04  \
+    EMIT 0x0F  EMIT 0x73  EMIT 0xD1  EMIT 0x20  \
+    EMIT 0x0F  EMIT 0x6E  EMIT 0x5E  EMIT 0x1C  \
+    EMIT 0x0F  EMIT 0xF4  EMIT 0xD8             \
+    EMIT 0x0F  EMIT 0xD4  EMIT 0xCD             \
+    EMIT 0x0F  EMIT 0x6E  EMIT 0x6F  EMIT 0x10  \
+    EMIT 0x0F  EMIT 0xD4  EMIT 0xD5             \
+    EMIT 0x0F  EMIT 0x7E  EMIT 0x4F  EMIT 0x08  \
+    EMIT 0x0F  EMIT 0x73  EMIT 0xD1  EMIT 0x20  \
+    EMIT 0x0F  EMIT 0xD4  EMIT 0xCF             \
+    EMIT 0x0F  EMIT 0x6E  EMIT 0x6F  EMIT 0x14  \
+    EMIT 0x0F  EMIT 0xD4  EMIT 0xE5             \
+    EMIT 0x0F  EMIT 0x7E  EMIT 0x4F  EMIT 0x0C  \
+    EMIT 0x0F  EMIT 0x73  EMIT 0xD1  EMIT 0x20  \
+    EMIT 0x0F  EMIT 0xD4  EMIT 0xCA             \
+    EMIT 0x0F  EMIT 0x6E  EMIT 0x6F  EMIT 0x18  \
+    EMIT 0x0F  EMIT 0xD4  EMIT 0xF5             \
+    EMIT 0x0F  EMIT 0x7E  EMIT 0x4F  EMIT 0x10  \
+    EMIT 0x0F  EMIT 0x73  EMIT 0xD1  EMIT 0x20  \
+    EMIT 0x0F  EMIT 0xD4  EMIT 0xCC             \
+    EMIT 0x0F  EMIT 0x6E  EMIT 0x6F  EMIT 0x1C  \
+    EMIT 0x0F  EMIT 0xD4  EMIT 0xDD             \
+    EMIT 0x0F  EMIT 0x7E  EMIT 0x4F  EMIT 0x14  \
+    EMIT 0x0F  EMIT 0x73  EMIT 0xD1  EMIT 0x20  \
+    EMIT 0x0F  EMIT 0xD4  EMIT 0xCE             \
+    EMIT 0x0F  EMIT 0x7E  EMIT 0x4F  EMIT 0x18  \
+    EMIT 0x0F  EMIT 0x73  EMIT 0xD1  EMIT 0x20  \
+    EMIT 0x0F  EMIT 0xD4  EMIT 0xCB             \
+    EMIT 0x0F  EMIT 0x7E  EMIT 0x4F  EMIT 0x1C  \
+    EMIT 0x83  EMIT 0xC7  EMIT 0x20             \
+    EMIT 0x83  EMIT 0xC6  EMIT 0x20             \
+    EMIT 0x0F  EMIT 0x73  EMIT 0xD1  EMIT 0x20  \
+    EMIT 0x0F  EMIT 0x7E  EMIT 0xC9
+
+#define MULADDC_STOP                            \
+    EMIT 0x0F  EMIT 0x77                        \
+    __asm   mov     c, ecx                      \
+    __asm   mov     d, edi                      \
+    __asm   mov     s, esi                      \
+
+#else
+
+#define MULADDC_STOP                            \
+    __asm   mov     c, ecx                      \
+    __asm   mov     d, edi                      \
+    __asm   mov     s, esi                      \
+
+#endif /* SSE2 */
+#endif /* MSVC */
+
+#endif /* MBEDTLS_HAVE_ASM */
+
+#if !defined(MULADDC_CORE)
+#if defined(MBEDTLS_HAVE_UDBL)
+
+#define MULADDC_INIT                    \
+{                                       \
+    mbedtls_t_udbl r;                           \
+    mbedtls_mpi_uint r0, r1;
+
+#define MULADDC_CORE                    \
+    r   = *(s++) * (mbedtls_t_udbl) b;          \
+    r0  = (mbedtls_mpi_uint) r;                   \
+    r1  = (mbedtls_mpi_uint)( r >> biL );         \
+    r0 += c;  r1 += (r0 <  c);          \
+    r0 += *d; r1 += (r0 < *d);          \
+    c = r1; *(d++) = r0;
+
+#define MULADDC_STOP                    \
+}
+
+#else
+#define MULADDC_INIT                    \
+{                                       \
+    mbedtls_mpi_uint s0, s1, b0, b1;              \
+    mbedtls_mpi_uint r0, r1, rx, ry;              \
+    b0 = ( b << biH ) >> biH;           \
+    b1 = ( b >> biH );
+
+#define MULADDC_CORE                    \
+    s0 = ( *s << biH ) >> biH;          \
+    s1 = ( *s >> biH ); s++;            \
+    rx = s0 * b1; r0 = s0 * b0;         \
+    ry = s1 * b0; r1 = s1 * b1;         \
+    r1 += ( rx >> biH );                \
+    r1 += ( ry >> biH );                \
+    rx <<= biH; ry <<= biH;             \
+    r0 += rx; r1 += (r0 < rx);          \
+    r0 += ry; r1 += (r0 < ry);          \
+    r0 +=  c; r1 += (r0 <  c);          \
+    r0 += *d; r1 += (r0 < *d);          \
+    c = r1; *(d++) = r0;
+
+#define MULADDC_STOP                    \
+}
+
+#endif /* C (generic)  */
+#endif /* C (longlong) */
+
+#endif /* bn_mul.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/check_config.h

@@ -0,0 +1,644 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+
+/*
+ * It is recommended to include this file from your config.h
+ * in order to catch dependency issues early.
+ */
+
+#ifndef MBEDTLS_CHECK_CONFIG_H
+#define MBEDTLS_CHECK_CONFIG_H
+
+/*
+ * We assume CHAR_BIT is 8 in many places. In practice, this is true on our
+ * target platforms, so not an issue, but let's just be extra sure.
+ */
+#include <limits.h>
+#if CHAR_BIT != 8
+#error "mbed TLS requires a platform with 8-bit chars"
+#endif
+
+#if defined(_WIN32)
+#if !defined(MBEDTLS_PLATFORM_C)
+#error "MBEDTLS_PLATFORM_C is required on Windows"
+#endif
+
+/* Fix the config here. Not convenient to put an #ifdef _WIN32 in config.h as
+ * it would confuse config.pl. */
+#if !defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) && \
+    !defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO)
+#define MBEDTLS_PLATFORM_SNPRINTF_ALT
+#endif
+#endif /* _WIN32 */
+
+#if defined(TARGET_LIKE_MBED) && \
+    ( defined(MBEDTLS_NET_C) || defined(MBEDTLS_TIMING_C) )
+#error "The NET and TIMING modules are not available for mbed OS - please use the network and timing functions provided by mbed OS"
+#endif
+
+#if defined(MBEDTLS_DEPRECATED_WARNING) && \
+    !defined(__GNUC__) && !defined(__clang__)
+#error "MBEDTLS_DEPRECATED_WARNING only works with GCC and Clang"
+#endif
+
+#if defined(MBEDTLS_HAVE_TIME_DATE) && !defined(MBEDTLS_HAVE_TIME)
+#error "MBEDTLS_HAVE_TIME_DATE without MBEDTLS_HAVE_TIME does not make sense"
+#endif
+
+#if defined(MBEDTLS_AESNI_C) && !defined(MBEDTLS_HAVE_ASM)
+#error "MBEDTLS_AESNI_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_CTR_DRBG_C) && !defined(MBEDTLS_AES_C)
+#error "MBEDTLS_CTR_DRBG_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_DHM_C) && !defined(MBEDTLS_BIGNUM_C)
+#error "MBEDTLS_DHM_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_CMAC_C) && \
+    !defined(MBEDTLS_AES_C) && !defined(MBEDTLS_DES_C)
+#error "MBEDTLS_CMAC_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECDH_C) && !defined(MBEDTLS_ECP_C)
+#error "MBEDTLS_ECDH_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECDSA_C) &&            \
+    ( !defined(MBEDTLS_ECP_C) ||           \
+      !defined(MBEDTLS_ASN1_PARSE_C) ||    \
+      !defined(MBEDTLS_ASN1_WRITE_C) )
+#error "MBEDTLS_ECDSA_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECJPAKE_C) &&           \
+    ( !defined(MBEDTLS_ECP_C) || !defined(MBEDTLS_MD_C) )
+#error "MBEDTLS_ECJPAKE_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECDSA_DETERMINISTIC) && !defined(MBEDTLS_HMAC_DRBG_C)
+#error "MBEDTLS_ECDSA_DETERMINISTIC defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECP_C) && ( !defined(MBEDTLS_BIGNUM_C) || (   \
+    !defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) &&                  \
+    !defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) &&                  \
+    !defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) &&                  \
+    !defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) &&                  \
+    !defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) &&                  \
+    !defined(MBEDTLS_ECP_DP_BP256R1_ENABLED)   &&                  \
+    !defined(MBEDTLS_ECP_DP_BP384R1_ENABLED)   &&                  \
+    !defined(MBEDTLS_ECP_DP_BP512R1_ENABLED)   &&                  \
+    !defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) &&                  \
+    !defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) &&                  \
+    !defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) ) )
+#error "MBEDTLS_ECP_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ENTROPY_C) && (!defined(MBEDTLS_SHA512_C) &&      \
+                                    !defined(MBEDTLS_SHA256_C))
+#error "MBEDTLS_ENTROPY_C defined, but not all prerequisites"
+#endif
+#if defined(MBEDTLS_ENTROPY_C) && defined(MBEDTLS_SHA512_C) &&         \
+    defined(MBEDTLS_CTR_DRBG_ENTROPY_LEN) && (MBEDTLS_CTR_DRBG_ENTROPY_LEN > 64)
+#error "MBEDTLS_CTR_DRBG_ENTROPY_LEN value too high"
+#endif
+#if defined(MBEDTLS_ENTROPY_C) &&                                            \
+    ( !defined(MBEDTLS_SHA512_C) || defined(MBEDTLS_ENTROPY_FORCE_SHA256) ) \
+    && defined(MBEDTLS_CTR_DRBG_ENTROPY_LEN) && (MBEDTLS_CTR_DRBG_ENTROPY_LEN > 32)
+#error "MBEDTLS_CTR_DRBG_ENTROPY_LEN value too high"
+#endif
+#if defined(MBEDTLS_ENTROPY_C) && \
+    defined(MBEDTLS_ENTROPY_FORCE_SHA256) && !defined(MBEDTLS_SHA256_C)
+#error "MBEDTLS_ENTROPY_FORCE_SHA256 defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_TEST_NULL_ENTROPY) && \
+    ( !defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES) )
+#error "MBEDTLS_TEST_NULL_ENTROPY defined, but not all prerequisites"
+#endif
+#if defined(MBEDTLS_TEST_NULL_ENTROPY) && \
+     ( defined(MBEDTLS_ENTROPY_NV_SEED) || defined(MBEDTLS_ENTROPY_HARDWARE_ALT) || \
+    defined(MBEDTLS_HAVEGE_C) )
+#error "MBEDTLS_TEST_NULL_ENTROPY defined, but entropy sources too"
+#endif
+
+#if defined(MBEDTLS_GCM_C) && (                                        \
+        !defined(MBEDTLS_AES_C) && !defined(MBEDTLS_CAMELLIA_C) )
+#error "MBEDTLS_GCM_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECP_RANDOMIZE_JAC_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
+#error "MBEDTLS_ECP_RANDOMIZE_JAC_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECP_ADD_MIXED_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
+#error "MBEDTLS_ECP_ADD_MIXED_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECP_DOUBLE_JAC_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
+#error "MBEDTLS_ECP_DOUBLE_JAC_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
+#error "MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECP_NORMALIZE_JAC_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
+#error "MBEDTLS_ECP_NORMALIZE_JAC_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
+#error "MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECP_RANDOMIZE_MXZ_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
+#error "MBEDTLS_ECP_RANDOMIZE_MXZ_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ECP_NORMALIZE_MXZ_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
+#error "MBEDTLS_ECP_NORMALIZE_MXZ_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_HAVEGE_C) && !defined(MBEDTLS_TIMING_C)
+#error "MBEDTLS_HAVEGE_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_HMAC_DRBG_C) && !defined(MBEDTLS_MD_C)
+#error "MBEDTLS_HMAC_DRBG_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) &&                 \
+    ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) )
+#error "MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) &&                 \
+    ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) )
+#error "MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) && !defined(MBEDTLS_DHM_C)
+#error "MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) &&                     \
+    !defined(MBEDTLS_ECDH_C)
+#error "MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) &&                   \
+    ( !defined(MBEDTLS_DHM_C) || !defined(MBEDTLS_RSA_C) ||           \
+      !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_PKCS1_V15) )
+#error "MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) &&                 \
+    ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_RSA_C) ||          \
+      !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_PKCS1_V15) )
+#error "MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) &&                 \
+    ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_ECDSA_C) ||          \
+      !defined(MBEDTLS_X509_CRT_PARSE_C) )
+#error "MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) &&                   \
+    ( !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) || \
+      !defined(MBEDTLS_PKCS1_V15) )
+#error "MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) &&                       \
+    ( !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) || \
+      !defined(MBEDTLS_PKCS1_V15) )
+#error "MBEDTLS_KEY_EXCHANGE_RSA_ENABLED defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) &&                    \
+    ( !defined(MBEDTLS_ECJPAKE_C) || !defined(MBEDTLS_SHA256_C) ||      \
+      !defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) )
+#error "MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) &&                          \
+    ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_PLATFORM_MEMORY) )
+#error "MBEDTLS_MEMORY_BUFFER_ALLOC_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PADLOCK_C) && !defined(MBEDTLS_HAVE_ASM)
+#error "MBEDTLS_PADLOCK_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PEM_PARSE_C) && !defined(MBEDTLS_BASE64_C)
+#error "MBEDTLS_PEM_PARSE_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PEM_WRITE_C) && !defined(MBEDTLS_BASE64_C)
+#error "MBEDTLS_PEM_WRITE_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PK_C) && \
+    ( !defined(MBEDTLS_RSA_C) && !defined(MBEDTLS_ECP_C) )
+#error "MBEDTLS_PK_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PK_PARSE_C) && !defined(MBEDTLS_PK_C)
+#error "MBEDTLS_PK_PARSE_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PK_WRITE_C) && !defined(MBEDTLS_PK_C)
+#error "MBEDTLS_PK_WRITE_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PKCS11_C) && !defined(MBEDTLS_PK_C)
+#error "MBEDTLS_PKCS11_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_EXIT_ALT) && !defined(MBEDTLS_PLATFORM_C)
+#error "MBEDTLS_PLATFORM_EXIT_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_EXIT_MACRO) && !defined(MBEDTLS_PLATFORM_C)
+#error "MBEDTLS_PLATFORM_EXIT_MACRO defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_EXIT_MACRO) &&\
+    ( defined(MBEDTLS_PLATFORM_STD_EXIT) ||\
+        defined(MBEDTLS_PLATFORM_EXIT_ALT) )
+#error "MBEDTLS_PLATFORM_EXIT_MACRO and MBEDTLS_PLATFORM_STD_EXIT/MBEDTLS_PLATFORM_EXIT_ALT cannot be defined simultaneously"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_TIME_ALT) &&\
+    ( !defined(MBEDTLS_PLATFORM_C) ||\
+        !defined(MBEDTLS_HAVE_TIME) )
+#error "MBEDTLS_PLATFORM_TIME_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_TIME_MACRO) &&\
+    ( !defined(MBEDTLS_PLATFORM_C) ||\
+        !defined(MBEDTLS_HAVE_TIME) )
+#error "MBEDTLS_PLATFORM_TIME_MACRO defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_TIME_TYPE_MACRO) &&\
+    ( !defined(MBEDTLS_PLATFORM_C) ||\
+        !defined(MBEDTLS_HAVE_TIME) )
+#error "MBEDTLS_PLATFORM_TIME_TYPE_MACRO defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_TIME_MACRO) &&\
+    ( defined(MBEDTLS_PLATFORM_STD_TIME) ||\
+        defined(MBEDTLS_PLATFORM_TIME_ALT) )
+#error "MBEDTLS_PLATFORM_TIME_MACRO and MBEDTLS_PLATFORM_STD_TIME/MBEDTLS_PLATFORM_TIME_ALT cannot be defined simultaneously"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_TIME_TYPE_MACRO) &&\
+    ( defined(MBEDTLS_PLATFORM_STD_TIME) ||\
+        defined(MBEDTLS_PLATFORM_TIME_ALT) )
+#error "MBEDTLS_PLATFORM_TIME_TYPE_MACRO and MBEDTLS_PLATFORM_STD_TIME/MBEDTLS_PLATFORM_TIME_ALT cannot be defined simultaneously"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_FPRINTF_ALT) && !defined(MBEDTLS_PLATFORM_C)
+#error "MBEDTLS_PLATFORM_FPRINTF_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_FPRINTF_MACRO) && !defined(MBEDTLS_PLATFORM_C)
+#error "MBEDTLS_PLATFORM_FPRINTF_MACRO defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_FPRINTF_MACRO) &&\
+    ( defined(MBEDTLS_PLATFORM_STD_FPRINTF) ||\
+        defined(MBEDTLS_PLATFORM_FPRINTF_ALT) )
+#error "MBEDTLS_PLATFORM_FPRINTF_MACRO and MBEDTLS_PLATFORM_STD_FPRINTF/MBEDTLS_PLATFORM_FPRINTF_ALT cannot be defined simultaneously"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_FREE_MACRO) &&\
+    ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_PLATFORM_MEMORY) )
+#error "MBEDTLS_PLATFORM_FREE_MACRO defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_FREE_MACRO) &&\
+    defined(MBEDTLS_PLATFORM_STD_FREE)
+#error "MBEDTLS_PLATFORM_FREE_MACRO and MBEDTLS_PLATFORM_STD_FREE cannot be defined simultaneously"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_FREE_MACRO) && !defined(MBEDTLS_PLATFORM_CALLOC_MACRO)
+#error "MBEDTLS_PLATFORM_CALLOC_MACRO must be defined if MBEDTLS_PLATFORM_FREE_MACRO is"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_CALLOC_MACRO) &&\
+    ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_PLATFORM_MEMORY) )
+#error "MBEDTLS_PLATFORM_CALLOC_MACRO defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_CALLOC_MACRO) &&\
+    defined(MBEDTLS_PLATFORM_STD_CALLOC)
+#error "MBEDTLS_PLATFORM_CALLOC_MACRO and MBEDTLS_PLATFORM_STD_CALLOC cannot be defined simultaneously"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_CALLOC_MACRO) && !defined(MBEDTLS_PLATFORM_FREE_MACRO)
+#error "MBEDTLS_PLATFORM_FREE_MACRO must be defined if MBEDTLS_PLATFORM_CALLOC_MACRO is"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_MEMORY) && !defined(MBEDTLS_PLATFORM_C)
+#error "MBEDTLS_PLATFORM_MEMORY defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_PRINTF_ALT) && !defined(MBEDTLS_PLATFORM_C)
+#error "MBEDTLS_PLATFORM_PRINTF_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_PRINTF_MACRO) && !defined(MBEDTLS_PLATFORM_C)
+#error "MBEDTLS_PLATFORM_PRINTF_MACRO defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_PRINTF_MACRO) &&\
+    ( defined(MBEDTLS_PLATFORM_STD_PRINTF) ||\
+        defined(MBEDTLS_PLATFORM_PRINTF_ALT) )
+#error "MBEDTLS_PLATFORM_PRINTF_MACRO and MBEDTLS_PLATFORM_STD_PRINTF/MBEDTLS_PLATFORM_PRINTF_ALT cannot be defined simultaneously"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) && !defined(MBEDTLS_PLATFORM_C)
+#error "MBEDTLS_PLATFORM_SNPRINTF_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO) && !defined(MBEDTLS_PLATFORM_C)
+#error "MBEDTLS_PLATFORM_SNPRINTF_MACRO defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO) &&\
+    ( defined(MBEDTLS_PLATFORM_STD_SNPRINTF) ||\
+        defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) )
+#error "MBEDTLS_PLATFORM_SNPRINTF_MACRO and MBEDTLS_PLATFORM_STD_SNPRINTF/MBEDTLS_PLATFORM_SNPRINTF_ALT cannot be defined simultaneously"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_STD_MEM_HDR) &&\
+    !defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS)
+#error "MBEDTLS_PLATFORM_STD_MEM_HDR defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_STD_CALLOC) && !defined(MBEDTLS_PLATFORM_MEMORY)
+#error "MBEDTLS_PLATFORM_STD_CALLOC defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_STD_CALLOC) && !defined(MBEDTLS_PLATFORM_MEMORY)
+#error "MBEDTLS_PLATFORM_STD_CALLOC defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_STD_FREE) && !defined(MBEDTLS_PLATFORM_MEMORY)
+#error "MBEDTLS_PLATFORM_STD_FREE defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_STD_EXIT) &&\
+    !defined(MBEDTLS_PLATFORM_EXIT_ALT)
+#error "MBEDTLS_PLATFORM_STD_EXIT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_STD_TIME) &&\
+    ( !defined(MBEDTLS_PLATFORM_TIME_ALT) ||\
+        !defined(MBEDTLS_HAVE_TIME) )
+#error "MBEDTLS_PLATFORM_STD_TIME defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_STD_FPRINTF) &&\
+    !defined(MBEDTLS_PLATFORM_FPRINTF_ALT)
+#error "MBEDTLS_PLATFORM_STD_FPRINTF defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_STD_PRINTF) &&\
+    !defined(MBEDTLS_PLATFORM_PRINTF_ALT)
+#error "MBEDTLS_PLATFORM_STD_PRINTF defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_STD_SNPRINTF) &&\
+    !defined(MBEDTLS_PLATFORM_SNPRINTF_ALT)
+#error "MBEDTLS_PLATFORM_STD_SNPRINTF defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_ENTROPY_NV_SEED) &&\
+    ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_ENTROPY_C) )
+#error "MBEDTLS_ENTROPY_NV_SEED defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_NV_SEED_ALT) &&\
+    !defined(MBEDTLS_ENTROPY_NV_SEED)
+#error "MBEDTLS_PLATFORM_NV_SEED_ALT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_STD_NV_SEED_READ) &&\
+    !defined(MBEDTLS_PLATFORM_NV_SEED_ALT)
+#error "MBEDTLS_PLATFORM_STD_NV_SEED_READ defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_STD_NV_SEED_WRITE) &&\
+    !defined(MBEDTLS_PLATFORM_NV_SEED_ALT)
+#error "MBEDTLS_PLATFORM_STD_NV_SEED_WRITE defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_NV_SEED_READ_MACRO) &&\
+    ( defined(MBEDTLS_PLATFORM_STD_NV_SEED_READ) ||\
+      defined(MBEDTLS_PLATFORM_NV_SEED_ALT) )
+#error "MBEDTLS_PLATFORM_NV_SEED_READ_MACRO and MBEDTLS_PLATFORM_STD_NV_SEED_READ cannot be defined simultaneously"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO) &&\
+    ( defined(MBEDTLS_PLATFORM_STD_NV_SEED_WRITE) ||\
+      defined(MBEDTLS_PLATFORM_NV_SEED_ALT) )
+#error "MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO and MBEDTLS_PLATFORM_STD_NV_SEED_WRITE cannot be defined simultaneously"
+#endif
+
+#if defined(MBEDTLS_RSA_C) && ( !defined(MBEDTLS_BIGNUM_C) ||         \
+    !defined(MBEDTLS_OID_C) )
+#error "MBEDTLS_RSA_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_RSA_C) && ( !defined(MBEDTLS_PKCS1_V21) &&         \
+    !defined(MBEDTLS_PKCS1_V15) )
+#error "MBEDTLS_RSA_C defined, but none of the PKCS1 versions enabled"
+#endif
+
+#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) &&                        \
+    ( !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_PKCS1_V21) )
+#error "MBEDTLS_X509_RSASSA_PSS_SUPPORT defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_SSL_PROTO_SSL3) && ( !defined(MBEDTLS_MD5_C) ||     \
+    !defined(MBEDTLS_SHA1_C) )
+#error "MBEDTLS_SSL_PROTO_SSL3 defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_SSL_PROTO_TLS1) && ( !defined(MBEDTLS_MD5_C) ||     \
+    !defined(MBEDTLS_SHA1_C) )
+#error "MBEDTLS_SSL_PROTO_TLS1 defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_SSL_PROTO_TLS1_1) && ( !defined(MBEDTLS_MD5_C) ||     \
+    !defined(MBEDTLS_SHA1_C) )
+#error "MBEDTLS_SSL_PROTO_TLS1_1 defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && ( !defined(MBEDTLS_SHA1_C) &&     \
+    !defined(MBEDTLS_SHA256_C) && !defined(MBEDTLS_SHA512_C) )
+#error "MBEDTLS_SSL_PROTO_TLS1_2 defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_SSL_PROTO_DTLS)     && \
+    !defined(MBEDTLS_SSL_PROTO_TLS1_1)  && \
+    !defined(MBEDTLS_SSL_PROTO_TLS1_2)
+#error "MBEDTLS_SSL_PROTO_DTLS defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_SSL_CLI_C) && !defined(MBEDTLS_SSL_TLS_C)
+#error "MBEDTLS_SSL_CLI_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_SSL_TLS_C) && ( !defined(MBEDTLS_CIPHER_C) ||     \
+    !defined(MBEDTLS_MD_C) )
+#error "MBEDTLS_SSL_TLS_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_SSL_SRV_C) && !defined(MBEDTLS_SSL_TLS_C)
+#error "MBEDTLS_SSL_SRV_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_SSL_TLS_C) && (!defined(MBEDTLS_SSL_PROTO_SSL3) && \
+    !defined(MBEDTLS_SSL_PROTO_TLS1) && !defined(MBEDTLS_SSL_PROTO_TLS1_1) && \
+    !defined(MBEDTLS_SSL_PROTO_TLS1_2))
+#error "MBEDTLS_SSL_TLS_C defined, but no protocols are active"
+#endif
+
+#if defined(MBEDTLS_SSL_TLS_C) && (defined(MBEDTLS_SSL_PROTO_SSL3) && \
+    defined(MBEDTLS_SSL_PROTO_TLS1_1) && !defined(MBEDTLS_SSL_PROTO_TLS1))
+#error "Illegal protocol selection"
+#endif
+
+#if defined(MBEDTLS_SSL_TLS_C) && (defined(MBEDTLS_SSL_PROTO_TLS1) && \
+    defined(MBEDTLS_SSL_PROTO_TLS1_2) && !defined(MBEDTLS_SSL_PROTO_TLS1_1))
+#error "Illegal protocol selection"
+#endif
+
+#if defined(MBEDTLS_SSL_TLS_C) && (defined(MBEDTLS_SSL_PROTO_SSL3) && \
+    defined(MBEDTLS_SSL_PROTO_TLS1_2) && (!defined(MBEDTLS_SSL_PROTO_TLS1) || \
+    !defined(MBEDTLS_SSL_PROTO_TLS1_1)))
+#error "Illegal protocol selection"
+#endif
+
+#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && !defined(MBEDTLS_SSL_PROTO_DTLS)
+#error "MBEDTLS_SSL_DTLS_HELLO_VERIFY  defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && \
+    !defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
+#error "MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE  defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) &&                              \
+    ( !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_PROTO_DTLS) )
+#error "MBEDTLS_SSL_DTLS_ANTI_REPLAY  defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) &&                              \
+    ( !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_PROTO_DTLS) )
+#error "MBEDTLS_SSL_DTLS_BADMAC_LIMIT  defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) &&   \
+    !defined(MBEDTLS_SSL_PROTO_TLS1)   &&      \
+    !defined(MBEDTLS_SSL_PROTO_TLS1_1) &&      \
+    !defined(MBEDTLS_SSL_PROTO_TLS1_2)
+#error "MBEDTLS_SSL_ENCRYPT_THEN_MAC defined, but not all prerequsites"
+#endif
+
+#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) && \
+    !defined(MBEDTLS_SSL_PROTO_TLS1)   &&          \
+    !defined(MBEDTLS_SSL_PROTO_TLS1_1) &&          \
+    !defined(MBEDTLS_SSL_PROTO_TLS1_2)
+#error "MBEDTLS_SSL_EXTENDED_MASTER_SECRET defined, but not all prerequsites"
+#endif
+
+#if defined(MBEDTLS_SSL_TICKET_C) && !defined(MBEDTLS_CIPHER_C)
+#error "MBEDTLS_SSL_TICKET_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) && \
+    !defined(MBEDTLS_SSL_PROTO_SSL3) && !defined(MBEDTLS_SSL_PROTO_TLS1)
+#error "MBEDTLS_SSL_CBC_RECORD_SPLITTING defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) && \
+        !defined(MBEDTLS_X509_CRT_PARSE_C)
+#error "MBEDTLS_SSL_SERVER_NAME_INDICATION defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_THREADING_PTHREAD)
+#if !defined(MBEDTLS_THREADING_C) || defined(MBEDTLS_THREADING_IMPL)
+#error "MBEDTLS_THREADING_PTHREAD defined, but not all prerequisites"
+#endif
+#define MBEDTLS_THREADING_IMPL
+#endif
+
+#if defined(MBEDTLS_THREADING_ALT)
+#if !defined(MBEDTLS_THREADING_C) || defined(MBEDTLS_THREADING_IMPL)
+#error "MBEDTLS_THREADING_ALT defined, but not all prerequisites"
+#endif
+#define MBEDTLS_THREADING_IMPL
+#endif
+
+#if defined(MBEDTLS_THREADING_C) && !defined(MBEDTLS_THREADING_IMPL)
+#error "MBEDTLS_THREADING_C defined, single threading implementation required"
+#endif
+#undef MBEDTLS_THREADING_IMPL
+
+#if defined(MBEDTLS_VERSION_FEATURES) && !defined(MBEDTLS_VERSION_C)
+#error "MBEDTLS_VERSION_FEATURES defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_X509_USE_C) && ( !defined(MBEDTLS_BIGNUM_C) ||  \
+    !defined(MBEDTLS_OID_C) || !defined(MBEDTLS_ASN1_PARSE_C) ||      \
+    !defined(MBEDTLS_PK_PARSE_C) )
+#error "MBEDTLS_X509_USE_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_X509_CREATE_C) && ( !defined(MBEDTLS_BIGNUM_C) ||  \
+    !defined(MBEDTLS_OID_C) || !defined(MBEDTLS_ASN1_WRITE_C) ||       \
+    !defined(MBEDTLS_PK_WRITE_C) )
+#error "MBEDTLS_X509_CREATE_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_X509_CRT_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) )
+#error "MBEDTLS_X509_CRT_PARSE_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_X509_CRL_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) )
+#error "MBEDTLS_X509_CRL_PARSE_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_X509_CSR_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) )
+#error "MBEDTLS_X509_CSR_PARSE_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_X509_CRT_WRITE_C) && ( !defined(MBEDTLS_X509_CREATE_C) )
+#error "MBEDTLS_X509_CRT_WRITE_C defined, but not all prerequisites"
+#endif
+
+#if defined(MBEDTLS_X509_CSR_WRITE_C) && ( !defined(MBEDTLS_X509_CREATE_C) )
+#error "MBEDTLS_X509_CSR_WRITE_C defined, but not all prerequisites"
+#endif
+
+/*
+ * Avoid warning from -pedantic. This is a convenient place for this
+ * workaround since this is included by every single file before the
+ * #if defined(MBEDTLS_xxx_C) that results in emtpy translation units.
+ */
+typedef int mbedtls_iso_c_forbids_empty_translation_units;
+
+#endif /* MBEDTLS_CHECK_CONFIG_H */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/cipher.h

@@ -0,0 +1,699 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+
+#ifndef MBEDTLS_CIPHER_H
+#define MBEDTLS_CIPHER_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#include <stddef.h>
+
+#if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CCM_C)
+    #define MBEDTLS_CIPHER_MODE_AEAD
+#endif
+
+#if defined(MBEDTLS_CIPHER_MODE_CBC)
+    #define MBEDTLS_CIPHER_MODE_WITH_PADDING
+#endif
+
+#if defined(MBEDTLS_ARC4_C)
+    #define MBEDTLS_CIPHER_MODE_STREAM
+#endif
+
+#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
+    !defined(inline) && !defined(__cplusplus)
+    #define inline __inline
+#endif
+
+#define MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE            -0x6080  /**< The selected feature is not available. */
+#define MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA                 -0x6100  /**< Bad input parameters to function. */
+#define MBEDTLS_ERR_CIPHER_ALLOC_FAILED                   -0x6180  /**< Failed to allocate memory. */
+#define MBEDTLS_ERR_CIPHER_INVALID_PADDING                -0x6200  /**< Input data contains invalid padding and is rejected. */
+#define MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED            -0x6280  /**< Decryption of block requires a full block. */
+#define MBEDTLS_ERR_CIPHER_AUTH_FAILED                    -0x6300  /**< Authentication failed (for AEAD modes). */
+#define MBEDTLS_ERR_CIPHER_INVALID_CONTEXT              -0x6380  /**< The context is invalid, eg because it was free()ed. */
+
+#define MBEDTLS_CIPHER_VARIABLE_IV_LEN     0x01    /**< Cipher accepts IVs of variable length */
+#define MBEDTLS_CIPHER_VARIABLE_KEY_LEN    0x02    /**< Cipher accepts keys of variable length */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum {
+    MBEDTLS_CIPHER_ID_NONE = 0,
+    MBEDTLS_CIPHER_ID_NULL,
+    MBEDTLS_CIPHER_ID_AES,
+    MBEDTLS_CIPHER_ID_DES,
+    MBEDTLS_CIPHER_ID_3DES,
+    MBEDTLS_CIPHER_ID_CAMELLIA,
+    MBEDTLS_CIPHER_ID_BLOWFISH,
+    MBEDTLS_CIPHER_ID_ARC4,
+} mbedtls_cipher_id_t;
+
+typedef enum {
+    MBEDTLS_CIPHER_NONE = 0,
+    MBEDTLS_CIPHER_NULL,
+    MBEDTLS_CIPHER_AES_128_ECB,
+    MBEDTLS_CIPHER_AES_192_ECB,
+    MBEDTLS_CIPHER_AES_256_ECB,
+    MBEDTLS_CIPHER_AES_128_CBC,
+    MBEDTLS_CIPHER_AES_192_CBC,
+    MBEDTLS_CIPHER_AES_256_CBC,
+    MBEDTLS_CIPHER_AES_128_CFB128,
+    MBEDTLS_CIPHER_AES_192_CFB128,
+    MBEDTLS_CIPHER_AES_256_CFB128,
+    MBEDTLS_CIPHER_AES_128_CTR,
+    MBEDTLS_CIPHER_AES_192_CTR,
+    MBEDTLS_CIPHER_AES_256_CTR,
+    MBEDTLS_CIPHER_AES_128_GCM,
+    MBEDTLS_CIPHER_AES_192_GCM,
+    MBEDTLS_CIPHER_AES_256_GCM,
+    MBEDTLS_CIPHER_CAMELLIA_128_ECB,
+    MBEDTLS_CIPHER_CAMELLIA_192_ECB,
+    MBEDTLS_CIPHER_CAMELLIA_256_ECB,
+    MBEDTLS_CIPHER_CAMELLIA_128_CBC,
+    MBEDTLS_CIPHER_CAMELLIA_192_CBC,
+    MBEDTLS_CIPHER_CAMELLIA_256_CBC,
+    MBEDTLS_CIPHER_CAMELLIA_128_CFB128,
+    MBEDTLS_CIPHER_CAMELLIA_192_CFB128,
+    MBEDTLS_CIPHER_CAMELLIA_256_CFB128,
+    MBEDTLS_CIPHER_CAMELLIA_128_CTR,
+    MBEDTLS_CIPHER_CAMELLIA_192_CTR,
+    MBEDTLS_CIPHER_CAMELLIA_256_CTR,
+    MBEDTLS_CIPHER_CAMELLIA_128_GCM,
+    MBEDTLS_CIPHER_CAMELLIA_192_GCM,
+    MBEDTLS_CIPHER_CAMELLIA_256_GCM,
+    MBEDTLS_CIPHER_DES_ECB,
+    MBEDTLS_CIPHER_DES_CBC,
+    MBEDTLS_CIPHER_DES_EDE_ECB,
+    MBEDTLS_CIPHER_DES_EDE_CBC,
+    MBEDTLS_CIPHER_DES_EDE3_ECB,
+    MBEDTLS_CIPHER_DES_EDE3_CBC,
+    MBEDTLS_CIPHER_BLOWFISH_ECB,
+    MBEDTLS_CIPHER_BLOWFISH_CBC,
+    MBEDTLS_CIPHER_BLOWFISH_CFB64,
+    MBEDTLS_CIPHER_BLOWFISH_CTR,
+    MBEDTLS_CIPHER_ARC4_128,
+    MBEDTLS_CIPHER_AES_128_CCM,
+    MBEDTLS_CIPHER_AES_192_CCM,
+    MBEDTLS_CIPHER_AES_256_CCM,
+    MBEDTLS_CIPHER_CAMELLIA_128_CCM,
+    MBEDTLS_CIPHER_CAMELLIA_192_CCM,
+    MBEDTLS_CIPHER_CAMELLIA_256_CCM,
+} mbedtls_cipher_type_t;
+
+typedef enum {
+    MBEDTLS_MODE_NONE = 0,
+    MBEDTLS_MODE_ECB,
+    MBEDTLS_MODE_CBC,
+    MBEDTLS_MODE_CFB,
+    MBEDTLS_MODE_OFB, /* Unused! */
+    MBEDTLS_MODE_CTR,
+    MBEDTLS_MODE_GCM,
+    MBEDTLS_MODE_STREAM,
+    MBEDTLS_MODE_CCM,
+} mbedtls_cipher_mode_t;
+
+typedef enum {
+    MBEDTLS_PADDING_PKCS7 = 0,     /**< PKCS7 padding (default)        */
+    MBEDTLS_PADDING_ONE_AND_ZEROS, /**< ISO/IEC 7816-4 padding         */
+    MBEDTLS_PADDING_ZEROS_AND_LEN, /**< ANSI X.923 padding             */
+    MBEDTLS_PADDING_ZEROS,         /**< zero padding (not reversible!) */
+    MBEDTLS_PADDING_NONE,          /**< never pad (full blocks only)   */
+} mbedtls_cipher_padding_t;
+
+typedef enum {
+    MBEDTLS_OPERATION_NONE = -1,
+    MBEDTLS_DECRYPT = 0,
+    MBEDTLS_ENCRYPT,
+} mbedtls_operation_t;
+
+enum {
+    /** Undefined key length */
+    MBEDTLS_KEY_LENGTH_NONE = 0,
+    /** Key length, in bits (including parity), for DES keys */
+    MBEDTLS_KEY_LENGTH_DES  = 64,
+    /** Key length, in bits (including parity), for DES in two key EDE */
+    MBEDTLS_KEY_LENGTH_DES_EDE = 128,
+    /** Key length, in bits (including parity), for DES in three-key EDE */
+    MBEDTLS_KEY_LENGTH_DES_EDE3 = 192,
+};
+
+/** Maximum length of any IV, in bytes */
+#define MBEDTLS_MAX_IV_LENGTH      16
+/** Maximum block size of any cipher, in bytes */
+#define MBEDTLS_MAX_BLOCK_LENGTH   16
+
+/**
+ * Base cipher information (opaque struct).
+ */
+typedef struct mbedtls_cipher_base_t mbedtls_cipher_base_t;
+
+/**
+ * CMAC context (opaque struct).
+ */
+typedef struct mbedtls_cmac_context_t mbedtls_cmac_context_t;
+
+/**
+ * Cipher information. Allows cipher functions to be called in a generic way.
+ */
+typedef struct {
+    /** Full cipher identifier (e.g. MBEDTLS_CIPHER_AES_256_CBC) */
+    mbedtls_cipher_type_t type;
+
+    /** Cipher mode (e.g. MBEDTLS_MODE_CBC) */
+    mbedtls_cipher_mode_t mode;
+
+    /** Cipher key length, in bits (default length for variable sized ciphers)
+     *  (Includes parity bits for ciphers like DES) */
+    unsigned int key_bitlen;
+
+    /** Name of the cipher */
+    const char *name;
+
+    /** IV/NONCE size, in bytes.
+     *  For cipher that accept many sizes: recommended size */
+    unsigned int iv_size;
+
+    /** Flags for variable IV size, variable key size, etc. */
+    int flags;
+
+    /** block size, in bytes */
+    unsigned int block_size;
+
+    /** Base cipher information and functions */
+    const mbedtls_cipher_base_t *base;
+
+} mbedtls_cipher_info_t;
+
+/**
+ * Generic cipher context.
+ */
+typedef struct {
+    /** Information about the associated cipher */
+    const mbedtls_cipher_info_t *cipher_info;
+
+    /** Key length to use */
+    int key_bitlen;
+
+    /** Operation that the context's key has been initialised for */
+    mbedtls_operation_t operation;
+
+#if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING)
+    /** Padding functions to use, if relevant for cipher mode */
+    void (*add_padding)(unsigned char *output, size_t olen, size_t data_len);
+    int (*get_padding)(unsigned char *input, size_t ilen, size_t *data_len);
+#endif
+
+    /** Buffer for data that hasn't been encrypted yet */
+    unsigned char unprocessed_data[MBEDTLS_MAX_BLOCK_LENGTH];
+
+    /** Number of bytes that still need processing */
+    size_t unprocessed_len;
+
+    /** Current IV or NONCE_COUNTER for CTR-mode */
+    unsigned char iv[MBEDTLS_MAX_IV_LENGTH];
+
+    /** IV size in bytes (for ciphers with variable-length IVs) */
+    size_t iv_size;
+
+    /** Cipher-specific context */
+    void *cipher_ctx;
+
+#if defined(MBEDTLS_CMAC_C)
+    /** CMAC Specific context */
+    mbedtls_cmac_context_t *cmac_ctx;
+#endif
+} mbedtls_cipher_context_t;
+
+/**
+ * \brief Returns the list of ciphers supported by the generic cipher module.
+ *
+ * \return              a statically allocated array of ciphers, the last entry
+ *                      is 0.
+ */
+const int *mbedtls_cipher_list(void);
+
+/**
+ * \brief               Returns the cipher information structure associated
+ *                      with the given cipher name.
+ *
+ * \param cipher_name   Name of the cipher to search for.
+ *
+ * \return              the cipher information structure associated with the
+ *                      given cipher_name, or NULL if not found.
+ */
+const mbedtls_cipher_info_t *mbedtls_cipher_info_from_string(const char *cipher_name);
+
+/**
+ * \brief               Returns the cipher information structure associated
+ *                      with the given cipher type.
+ *
+ * \param cipher_type   Type of the cipher to search for.
+ *
+ * \return              the cipher information structure associated with the
+ *                      given cipher_type, or NULL if not found.
+ */
+const mbedtls_cipher_info_t *mbedtls_cipher_info_from_type(const mbedtls_cipher_type_t cipher_type);
+
+/**
+ * \brief               Returns the cipher information structure associated
+ *                      with the given cipher id, key size and mode.
+ *
+ * \param cipher_id     Id of the cipher to search for
+ *                      (e.g. MBEDTLS_CIPHER_ID_AES)
+ * \param key_bitlen    Length of the key in bits
+ * \param mode          Cipher mode (e.g. MBEDTLS_MODE_CBC)
+ *
+ * \return              the cipher information structure associated with the
+ *                      given cipher_type, or NULL if not found.
+ */
+const mbedtls_cipher_info_t *mbedtls_cipher_info_from_values(const mbedtls_cipher_id_t cipher_id,
+        int key_bitlen,
+        const mbedtls_cipher_mode_t mode);
+
+/**
+ * \brief               Initialize a cipher_context (as NONE)
+ */
+void mbedtls_cipher_init(mbedtls_cipher_context_t *ctx);
+
+/**
+ * \brief               Free and clear the cipher-specific context of ctx.
+ *                      Freeing ctx itself remains the responsibility of the
+ *                      caller.
+ */
+void mbedtls_cipher_free(mbedtls_cipher_context_t *ctx);
+
+/**
+ * \brief               Initialises and fills the cipher context structure with
+ *                      the appropriate values.
+ *
+ * \note                Currently also clears structure. In future versions you
+ *                      will be required to call mbedtls_cipher_init() on the structure
+ *                      first.
+ *
+ * \param ctx           context to initialise. May not be NULL.
+ * \param cipher_info   cipher to use.
+ *
+ * \return              0 on success,
+ *                      MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA on parameter failure,
+ *                      MBEDTLS_ERR_CIPHER_ALLOC_FAILED if allocation of the
+ *                      cipher-specific context failed.
+ */
+int mbedtls_cipher_setup(mbedtls_cipher_context_t *ctx, const mbedtls_cipher_info_t *cipher_info);
+
+/**
+ * \brief               Returns the block size of the given cipher.
+ *
+ * \param ctx           cipher's context. Must have been initialised.
+ *
+ * \return              size of the cipher's blocks, or 0 if ctx has not been
+ *                      initialised.
+ */
+static inline unsigned int mbedtls_cipher_get_block_size(const mbedtls_cipher_context_t *ctx)
+{
+    if (NULL == ctx || NULL == ctx->cipher_info) {
+        return 0;
+    }
+
+    return ctx->cipher_info->block_size;
+}
+
+/**
+ * \brief               Returns the mode of operation for the cipher.
+ *                      (e.g. MBEDTLS_MODE_CBC)
+ *
+ * \param ctx           cipher's context. Must have been initialised.
+ *
+ * \return              mode of operation, or MBEDTLS_MODE_NONE if ctx
+ *                      has not been initialised.
+ */
+static inline mbedtls_cipher_mode_t mbedtls_cipher_get_cipher_mode(const mbedtls_cipher_context_t *ctx)
+{
+    if (NULL == ctx || NULL == ctx->cipher_info) {
+        return MBEDTLS_MODE_NONE;
+    }
+
+    return ctx->cipher_info->mode;
+}
+
+/**
+ * \brief               Returns the size of the cipher's IV/NONCE in bytes.
+ *
+ * \param ctx           cipher's context. Must have been initialised.
+ *
+ * \return              If IV has not been set yet: (recommended) IV size
+ *                      (0 for ciphers not using IV/NONCE).
+ *                      If IV has already been set: actual size.
+ */
+static inline int mbedtls_cipher_get_iv_size(const mbedtls_cipher_context_t *ctx)
+{
+    if (NULL == ctx || NULL == ctx->cipher_info) {
+        return 0;
+    }
+
+    if (ctx->iv_size != 0) {
+        return (int) ctx->iv_size;
+    }
+
+    return (int) ctx->cipher_info->iv_size;
+}
+
+/**
+ * \brief               Returns the type of the given cipher.
+ *
+ * \param ctx           cipher's context. Must have been initialised.
+ *
+ * \return              type of the cipher, or MBEDTLS_CIPHER_NONE if ctx has
+ *                      not been initialised.
+ */
+static inline mbedtls_cipher_type_t mbedtls_cipher_get_type(const mbedtls_cipher_context_t *ctx)
+{
+    if (NULL == ctx || NULL == ctx->cipher_info) {
+        return MBEDTLS_CIPHER_NONE;
+    }
+
+    return ctx->cipher_info->type;
+}
+
+/**
+ * \brief               Returns the name of the given cipher, as a string.
+ *
+ * \param ctx           cipher's context. Must have been initialised.
+ *
+ * \return              name of the cipher, or NULL if ctx was not initialised.
+ */
+static inline const char *mbedtls_cipher_get_name(const mbedtls_cipher_context_t *ctx)
+{
+    if (NULL == ctx || NULL == ctx->cipher_info) {
+        return 0;
+    }
+
+    return ctx->cipher_info->name;
+}
+
+/**
+ * \brief               Returns the key length of the cipher.
+ *
+ * \param ctx           cipher's context. Must have been initialised.
+ *
+ * \return              cipher's key length, in bits, or
+ *                      MBEDTLS_KEY_LENGTH_NONE if ctx has not been
+ *                      initialised.
+ */
+static inline int mbedtls_cipher_get_key_bitlen(const mbedtls_cipher_context_t *ctx)
+{
+    if (NULL == ctx || NULL == ctx->cipher_info) {
+        return MBEDTLS_KEY_LENGTH_NONE;
+    }
+
+    return (int) ctx->cipher_info->key_bitlen;
+}
+
+/**
+ * \brief               Returns the operation of the given cipher.
+ *
+ * \param ctx           cipher's context. Must have been initialised.
+ *
+ * \return              operation (MBEDTLS_ENCRYPT or MBEDTLS_DECRYPT),
+ *                      or MBEDTLS_OPERATION_NONE if ctx has not been
+ *                      initialised.
+ */
+static inline mbedtls_operation_t mbedtls_cipher_get_operation(const mbedtls_cipher_context_t *ctx)
+{
+    if (NULL == ctx || NULL == ctx->cipher_info) {
+        return MBEDTLS_OPERATION_NONE;
+    }
+
+    return ctx->operation;
+}
+
+/**
+ * \brief               Set the key to use with the given context.
+ *
+ * \param ctx           generic cipher context. May not be NULL. Must have been
+ *                      initialised using cipher_context_from_type or
+ *                      cipher_context_from_string.
+ * \param key           The key to use.
+ * \param key_bitlen    key length to use, in bits.
+ * \param operation     Operation that the key will be used for, either
+ *                      MBEDTLS_ENCRYPT or MBEDTLS_DECRYPT.
+ *
+ * \returns             0 on success, MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA if
+ *                      parameter verification fails or a cipher specific
+ *                      error code.
+ */
+int mbedtls_cipher_setkey(mbedtls_cipher_context_t *ctx, const unsigned char *key,
+                                      int key_bitlen, const mbedtls_operation_t operation);
+
+#if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING)
+/**
+ * \brief               Set padding mode, for cipher modes that use padding.
+ *                      (Default: PKCS7 padding.)
+ *
+ * \param ctx           generic cipher context
+ * \param mode          padding mode
+ *
+ * \returns             0 on success, MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE
+ *                      if selected padding mode is not supported, or
+ *                      MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA if the cipher mode
+ *                      does not support padding.
+ */
+int mbedtls_cipher_set_padding_mode(mbedtls_cipher_context_t *ctx, mbedtls_cipher_padding_t mode);
+#endif /* MBEDTLS_CIPHER_MODE_WITH_PADDING */
+
+/**
+ * \brief               Set the initialization vector (IV) or nonce
+ *
+ * \param ctx           generic cipher context
+ * \param iv            IV to use (or NONCE_COUNTER for CTR-mode ciphers)
+ * \param iv_len        IV length for ciphers with variable-size IV;
+ *                      discarded by ciphers with fixed-size IV.
+ *
+ * \returns             0 on success, or MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA
+ *
+ * \note                Some ciphers don't use IVs nor NONCE. For these
+ *                      ciphers, this function has no effect.
+ */
+int mbedtls_cipher_set_iv(mbedtls_cipher_context_t *ctx,
+                                      const unsigned char *iv, size_t iv_len);
+
+/**
+ * \brief               Finish preparation of the given context
+ *
+ * \param ctx           generic cipher context
+ *
+ * \returns             0 on success, MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA
+ *                      if parameter verification fails.
+ */
+int mbedtls_cipher_reset(mbedtls_cipher_context_t *ctx);
+
+#if defined(MBEDTLS_GCM_C)
+/**
+ * \brief               Add additional data (for AEAD ciphers).
+ *                      Currently only supported with GCM.
+ *                      Must be called exactly once, after mbedtls_cipher_reset().
+ *
+ * \param ctx           generic cipher context
+ * \param ad            Additional data to use.
+ * \param ad_len        Length of ad.
+ *
+ * \return              0 on success, or a specific error code.
+ */
+int mbedtls_cipher_update_ad(mbedtls_cipher_context_t *ctx,
+        const unsigned char *ad, size_t ad_len);
+#endif /* MBEDTLS_GCM_C */
+
+/**
+ * \brief               Generic cipher update function. Encrypts/decrypts
+ *                      using the given cipher context. Writes as many block
+ *                      size'd blocks of data as possible to output. Any data
+ *                      that cannot be written immediately will either be added
+ *                      to the next block, or flushed when cipher_final is
+ *                      called.
+ *                      Exception: for MBEDTLS_MODE_ECB, expects single block
+ *                                 in size (e.g. 16 bytes for AES)
+ *
+ * \param ctx           generic cipher context
+ * \param input         buffer holding the input data
+ * \param ilen          length of the input data
+ * \param output        buffer for the output data. Should be able to hold at
+ *                      least ilen + block_size. Cannot be the same buffer as
+ *                      input!
+ * \param olen          length of the output data, will be filled with the
+ *                      actual number of bytes written.
+ *
+ * \returns             0 on success, MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA if
+ *                      parameter verification fails,
+ *                      MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE on an
+ *                      unsupported mode for a cipher or a cipher specific
+ *                      error code.
+ *
+ * \note                If the underlying cipher is GCM, all calls to this
+ *                      function, except the last one before mbedtls_cipher_finish(),
+ *                      must have ilen a multiple of the block size.
+ */
+int mbedtls_cipher_update(mbedtls_cipher_context_t *ctx, const unsigned char *input,
+                                      size_t ilen, unsigned char *output, size_t *olen);
+
+/**
+ * \brief               Generic cipher finalisation function. If data still
+ *                      needs to be flushed from an incomplete block, data
+ *                      contained within it will be padded with the size of
+ *                      the last block, and written to the output buffer.
+ *
+ * \param ctx           Generic cipher context
+ * \param output        buffer to write data to. Needs block_size available.
+ * \param olen          length of the data written to the output buffer.
+ *
+ * \returns             0 on success, MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA if
+ *                      parameter verification fails,
+ *                      MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED if decryption
+ *                      expected a full block but was not provided one,
+ *                      MBEDTLS_ERR_CIPHER_INVALID_PADDING on invalid padding
+ *                      while decrypting or a cipher specific error code.
+ */
+int mbedtls_cipher_finish(mbedtls_cipher_context_t *ctx,
+                                      unsigned char *output, size_t *olen);
+
+#if defined(MBEDTLS_GCM_C)
+/**
+ * \brief               Write tag for AEAD ciphers.
+ *                      Currently only supported with GCM.
+ *                      Must be called after mbedtls_cipher_finish().
+ *
+ * \param ctx           Generic cipher context
+ * \param tag           buffer to write the tag
+ * \param tag_len       Length of the tag to write
+ *
+ * \return              0 on success, or a specific error code.
+ */
+int mbedtls_cipher_write_tag(mbedtls_cipher_context_t *ctx,
+        unsigned char *tag, size_t tag_len);
+
+/**
+ * \brief               Check tag for AEAD ciphers.
+ *                      Currently only supported with GCM.
+ *                      Must be called after mbedtls_cipher_finish().
+ *
+ * \param ctx           Generic cipher context
+ * \param tag           Buffer holding the tag
+ * \param tag_len       Length of the tag to check
+ *
+ * \return              0 on success, or a specific error code.
+ */
+int mbedtls_cipher_check_tag(mbedtls_cipher_context_t *ctx,
+        const unsigned char *tag, size_t tag_len);
+#endif /* MBEDTLS_GCM_C */
+
+/**
+ * \brief               Generic all-in-one encryption/decryption
+ *                      (for all ciphers except AEAD constructs).
+ *
+ * \param ctx           generic cipher context
+ * \param iv            IV to use (or NONCE_COUNTER for CTR-mode ciphers)
+ * \param iv_len        IV length for ciphers with variable-size IV;
+ *                      discarded by ciphers with fixed-size IV.
+ * \param input         buffer holding the input data
+ * \param ilen          length of the input data
+ * \param output        buffer for the output data. Should be able to hold at
+ *                      least ilen + block_size. Cannot be the same buffer as
+ *                      input!
+ * \param olen          length of the output data, will be filled with the
+ *                      actual number of bytes written.
+ *
+ * \note                Some ciphers don't use IVs nor NONCE. For these
+ *                      ciphers, use iv = NULL and iv_len = 0.
+ *
+ * \returns             0 on success, or
+ *                      MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, or
+ *                      MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED if decryption
+ *                      expected a full block but was not provided one, or
+ *                      MBEDTLS_ERR_CIPHER_INVALID_PADDING on invalid padding
+ *                      while decrypting, or
+ *                      a cipher specific error code.
+ */
+int mbedtls_cipher_crypt(mbedtls_cipher_context_t *ctx,
+                                     const unsigned char *iv, size_t iv_len,
+                                     const unsigned char *input, size_t ilen,
+                                     unsigned char *output, size_t *olen);
+
+#if defined(MBEDTLS_CIPHER_MODE_AEAD)
+/**
+ * \brief               Generic autenticated encryption (AEAD ciphers).
+ *
+ * \param ctx           generic cipher context
+ * \param iv            IV to use (or NONCE_COUNTER for CTR-mode ciphers)
+ * \param iv_len        IV length for ciphers with variable-size IV;
+ *                      discarded by ciphers with fixed-size IV.
+ * \param ad            Additional data to authenticate.
+ * \param ad_len        Length of ad.
+ * \param input         buffer holding the input data
+ * \param ilen          length of the input data
+ * \param output        buffer for the output data.
+ *                      Should be able to hold at least ilen.
+ * \param olen          length of the output data, will be filled with the
+ *                      actual number of bytes written.
+ * \param tag           buffer for the authentication tag
+ * \param tag_len       desired tag length
+ *
+ * \returns             0 on success, or
+ *                      MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, or
+ *                      a cipher specific error code.
+ */
+int mbedtls_cipher_auth_encrypt(mbedtls_cipher_context_t *ctx,
+        const unsigned char *iv, size_t iv_len,
+        const unsigned char *ad, size_t ad_len,
+        const unsigned char *input, size_t ilen,
+        unsigned char *output, size_t *olen,
+        unsigned char *tag, size_t tag_len);
+
+/**
+ * \brief               Generic autenticated decryption (AEAD ciphers).
+ *
+ * \param ctx           generic cipher context
+ * \param iv            IV to use (or NONCE_COUNTER for CTR-mode ciphers)
+ * \param iv_len        IV length for ciphers with variable-size IV;
+ *                      discarded by ciphers with fixed-size IV.
+ * \param ad            Additional data to be authenticated.
+ * \param ad_len        Length of ad.
+ * \param input         buffer holding the input data
+ * \param ilen          length of the input data
+ * \param output        buffer for the output data.
+ *                      Should be able to hold at least ilen.
+ * \param olen          length of the output data, will be filled with the
+ *                      actual number of bytes written.
+ * \param tag           buffer holding the authentication tag
+ * \param tag_len       length of the authentication tag
+ *
+ * \returns             0 on success, or
+ *                      MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, or
+ *                      MBEDTLS_ERR_CIPHER_AUTH_FAILED if data isn't authentic,
+ *                      or a cipher specific error code.
+ *
+ * \note                If the data is not authentic, then the output buffer
+ *                      is zeroed out to prevent the unauthentic plaintext to
+ *                      be used by mistake, making this interface safer.
+ */
+int mbedtls_cipher_auth_decrypt(mbedtls_cipher_context_t *ctx,
+        const unsigned char *iv, size_t iv_len,
+        const unsigned char *ad, size_t ad_len,
+        const unsigned char *input, size_t ilen,
+        unsigned char *output, size_t *olen,
+        const unsigned char *tag, size_t tag_len);
+#endif /* MBEDTLS_CIPHER_MODE_AEAD */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* MBEDTLS_CIPHER_H */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/cipher_internal.h

@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_CIPHER_WRAP_H
+#define MBEDTLS_CIPHER_WRAP_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+#include "config.h"
+#else
+#include MBEDTLS_CONFIG_FILE
+#endif
+
+#include "cipher.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Base cipher information. The non-mode specific functions and values.
+ */
+struct mbedtls_cipher_base_t
+{
+    /** Base Cipher type (e.g. MBEDTLS_CIPHER_ID_AES) */
+    mbedtls_cipher_id_t cipher;
+
+    /** Encrypt using ECB */
+    int (*ecb_func)( void *ctx, mbedtls_operation_t mode,
+                     const unsigned char *input, unsigned char *output );
+
+#if defined(MBEDTLS_CIPHER_MODE_CBC)
+    /** Encrypt using CBC */
+    int (*cbc_func)( void *ctx, mbedtls_operation_t mode, size_t length,
+                     unsigned char *iv, const unsigned char *input,
+                     unsigned char *output );
+#endif
+
+#if defined(MBEDTLS_CIPHER_MODE_CFB)
+    /** Encrypt using CFB (Full length) */
+    int (*cfb_func)( void *ctx, mbedtls_operation_t mode, size_t length, size_t *iv_off,
+                     unsigned char *iv, const unsigned char *input,
+                     unsigned char *output );
+#endif
+
+#if defined(MBEDTLS_CIPHER_MODE_CTR)
+    /** Encrypt using CTR */
+    int (*ctr_func)( void *ctx, size_t length, size_t *nc_off,
+                     unsigned char *nonce_counter, unsigned char *stream_block,
+                     const unsigned char *input, unsigned char *output );
+#endif
+
+#if defined(MBEDTLS_CIPHER_MODE_STREAM)
+    /** Encrypt using STREAM */
+    int (*stream_func)( void *ctx, size_t length,
+                        const unsigned char *input, unsigned char *output );
+#endif
+
+    /** Set key for encryption purposes */
+    int (*setkey_enc_func)( void *ctx, const unsigned char *key,
+                            unsigned int key_bitlen );
+
+    /** Set key for decryption purposes */
+    int (*setkey_dec_func)( void *ctx, const unsigned char *key,
+                            unsigned int key_bitlen);
+
+    /** Allocate a new context */
+    void * (*ctx_alloc_func)( void );
+
+    /** Free the given context */
+    void (*ctx_free_func)( void *ctx );
+
+};
+
+typedef struct
+{
+    mbedtls_cipher_type_t type;
+    const mbedtls_cipher_info_t *info;
+} mbedtls_cipher_definition_t;
+
+extern const mbedtls_cipher_definition_t mbedtls_cipher_definitions[];
+
+extern int mbedtls_cipher_supported[];
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* MBEDTLS_CIPHER_WRAP_H */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/ctr_drbg.h

@@ -0,0 +1,273 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_CTR_DRBG_H
+#define MBEDTLS_CTR_DRBG_H
+
+#include "aes.h"
+
+#if defined(MBEDTLS_THREADING_C)
+    #include "mbedtls/threading.h"
+#endif
+
+#define MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED        -0x0034  /**< The entropy source failed. */
+#define MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG              -0x0036  /**< Too many random requested in single call. */
+#define MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG                -0x0038  /**< Input too large (Entropy + additional). */
+#define MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR                -0x003A  /**< Read/write error in file. */
+
+#define MBEDTLS_CTR_DRBG_BLOCKSIZE          16      /**< Block size used by the cipher                  */
+#define MBEDTLS_CTR_DRBG_KEYSIZE            32      /**< Key size used by the cipher                    */
+#define MBEDTLS_CTR_DRBG_KEYBITS            ( MBEDTLS_CTR_DRBG_KEYSIZE * 8 )
+#define MBEDTLS_CTR_DRBG_SEEDLEN            ( MBEDTLS_CTR_DRBG_KEYSIZE + MBEDTLS_CTR_DRBG_BLOCKSIZE )
+/**< The seed length (counter + AES key)            */
+
+/**
+ * \name SECTION: Module settings
+ *
+ * The configuration options you can set for this module are in this section.
+ * Either change them in config.h or define them on the compiler command line.
+ * \{
+ */
+
+#if !defined(MBEDTLS_CTR_DRBG_ENTROPY_LEN)
+    #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_ENTROPY_FORCE_SHA256)
+        #define MBEDTLS_CTR_DRBG_ENTROPY_LEN        48      /**< Amount of entropy used per seed by default (48 with SHA-512, 32 with SHA-256) */
+    #else
+        #define MBEDTLS_CTR_DRBG_ENTROPY_LEN        32      /**< Amount of entropy used per seed by default (48 with SHA-512, 32 with SHA-256) */
+    #endif
+#endif
+
+#if !defined(MBEDTLS_CTR_DRBG_RESEED_INTERVAL)
+    #define MBEDTLS_CTR_DRBG_RESEED_INTERVAL    10000   /**< Interval before reseed is performed by default */
+#endif
+
+#if !defined(MBEDTLS_CTR_DRBG_MAX_INPUT)
+    #define MBEDTLS_CTR_DRBG_MAX_INPUT          256     /**< Maximum number of additional input bytes */
+#endif
+
+#if !defined(MBEDTLS_CTR_DRBG_MAX_REQUEST)
+    #define MBEDTLS_CTR_DRBG_MAX_REQUEST        1024    /**< Maximum number of requested bytes per call */
+#endif
+
+#if !defined(MBEDTLS_CTR_DRBG_MAX_SEED_INPUT)
+    #define MBEDTLS_CTR_DRBG_MAX_SEED_INPUT     384     /**< Maximum size of (re)seed buffer */
+#endif
+
+/* \} name SECTION: Module settings */
+
+#define MBEDTLS_CTR_DRBG_PR_OFF             0       /**< No prediction resistance       */
+#define MBEDTLS_CTR_DRBG_PR_ON              1       /**< Prediction resistance enabled  */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          CTR_DRBG context structure
+ */
+typedef struct {
+    unsigned char counter[16];  /*!<  counter (V)       */
+    int reseed_counter;         /*!<  reseed counter    */
+    int prediction_resistance;  /*!<  enable prediction resistance (Automatic
+                                      reseed before every random generation)  */
+    size_t entropy_len;         /*!<  amount of entropy grabbed on each
+                                      (re)seed          */
+    int reseed_interval;        /*!<  reseed interval   */
+
+    mbedtls_aes_context aes_ctx;        /*!<  AES context       */
+
+    /*
+     * Callbacks (Entropy)
+     */
+    int (*f_entropy)(void *, unsigned char *, size_t);
+
+    void *p_entropy;            /*!<  context for the entropy function */
+
+#if defined(MBEDTLS_THREADING_C)
+    mbedtls_threading_mutex_t mutex;
+#endif
+}
+mbedtls_ctr_drbg_context;
+
+/**
+ * \brief               CTR_DRBG context initialization
+ *                      Makes the context ready for mbedtls_ctr_drbg_seed() or
+ *                      mbedtls_ctr_drbg_free().
+ *
+ * \param ctx           CTR_DRBG context to be initialized
+ */
+void mbedtls_ctr_drbg_init(mbedtls_ctr_drbg_context *ctx);
+
+/**
+ * \brief               CTR_DRBG initial seeding
+ *                      Seed and setup entropy source for future reseeds.
+ *
+ * Note: Personalization data can be provided in addition to the more generic
+ *       entropy source to make this instantiation as unique as possible.
+ *
+ * \param ctx           CTR_DRBG context to be seeded
+ * \param f_entropy     Entropy callback (p_entropy, buffer to fill, buffer
+ *                      length)
+ * \param p_entropy     Entropy context
+ * \param custom        Personalization data (Device specific identifiers)
+ *                      (Can be NULL)
+ * \param len           Length of personalization data
+ *
+ * \return              0 if successful, or
+ *                      MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED
+ */
+int mbedtls_ctr_drbg_seed(mbedtls_ctr_drbg_context *ctx,
+                                      int (*f_entropy)(void *, unsigned char *, size_t),
+                                      void *p_entropy,
+                                      const unsigned char *custom,
+                                      size_t len);
+
+/**
+ * \brief               Clear CTR_CRBG context data
+ *
+ * \param ctx           CTR_DRBG context to clear
+ */
+void mbedtls_ctr_drbg_free(mbedtls_ctr_drbg_context *ctx);
+
+/**
+ * \brief               Enable / disable prediction resistance (Default: Off)
+ *
+ * Note: If enabled, entropy is used for ctx->entropy_len before each call!
+ *       Only use this if you have ample supply of good entropy!
+ *
+ * \param ctx           CTR_DRBG context
+ * \param resistance    MBEDTLS_CTR_DRBG_PR_ON or MBEDTLS_CTR_DRBG_PR_OFF
+ */
+void mbedtls_ctr_drbg_set_prediction_resistance(mbedtls_ctr_drbg_context *ctx,
+        int resistance);
+
+/**
+ * \brief               Set the amount of entropy grabbed on each (re)seed
+ *                      (Default: MBEDTLS_CTR_DRBG_ENTROPY_LEN)
+ *
+ * \param ctx           CTR_DRBG context
+ * \param len           Amount of entropy to grab
+ */
+void mbedtls_ctr_drbg_set_entropy_len(mbedtls_ctr_drbg_context *ctx,
+        size_t len);
+
+/**
+ * \brief               Set the reseed interval
+ *                      (Default: MBEDTLS_CTR_DRBG_RESEED_INTERVAL)
+ *
+ * \param ctx           CTR_DRBG context
+ * \param interval      Reseed interval
+ */
+void mbedtls_ctr_drbg_set_reseed_interval(mbedtls_ctr_drbg_context *ctx,
+        int interval);
+
+/**
+ * \brief               CTR_DRBG reseeding (extracts data from entropy source)
+ *
+ * \param ctx           CTR_DRBG context
+ * \param additional    Additional data to add to state (Can be NULL)
+ * \param len           Length of additional data
+ *
+ * \return              0 if successful, or
+ *                      MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED
+ */
+int mbedtls_ctr_drbg_reseed(mbedtls_ctr_drbg_context *ctx,
+                                        const unsigned char *additional, size_t len);
+
+/**
+ * \brief               CTR_DRBG update state
+ *
+ * \param ctx           CTR_DRBG context
+ * \param additional    Additional data to update state with
+ * \param add_len       Length of additional data
+ *
+ * \note                If add_len is greater than MBEDTLS_CTR_DRBG_MAX_SEED_INPUT,
+ *                      only the first MBEDTLS_CTR_DRBG_MAX_SEED_INPUT bytes are used,
+ *                      the remaining ones are silently discarded.
+ */
+void mbedtls_ctr_drbg_update(mbedtls_ctr_drbg_context *ctx,
+        const unsigned char *additional, size_t add_len);
+
+/**
+ * \brief               CTR_DRBG generate random with additional update input
+ *
+ * Note: Automatically reseeds if reseed_counter is reached.
+ *
+ * \param p_rng         CTR_DRBG context
+ * \param output        Buffer to fill
+ * \param output_len    Length of the buffer
+ * \param additional    Additional data to update with (Can be NULL)
+ * \param add_len       Length of additional data
+ *
+ * \return              0 if successful, or
+ *                      MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED, or
+ *                      MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG
+ */
+int mbedtls_ctr_drbg_random_with_add(void *p_rng,
+        unsigned char *output, size_t output_len,
+        const unsigned char *additional, size_t add_len);
+
+/**
+ * \brief               CTR_DRBG generate random
+ *
+ * Note: Automatically reseeds if reseed_counter is reached.
+ *
+ * \param p_rng         CTR_DRBG context
+ * \param output        Buffer to fill
+ * \param output_len    Length of the buffer
+ *
+ * \return              0 if successful, or
+ *                      MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED, or
+ *                      MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG
+ */
+int mbedtls_ctr_drbg_random(void *p_rng,
+                                        unsigned char *output, size_t output_len);
+
+#if defined(MBEDTLS_FS_IO)
+/**
+ * \brief               Write a seed file
+ *
+ * \param ctx           CTR_DRBG context
+ * \param path          Name of the file
+ *
+ * \return              0 if successful,
+ *                      MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR on file error, or
+ *                      MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED
+ */
+int mbedtls_ctr_drbg_write_seed_file(mbedtls_ctr_drbg_context *ctx, const char *path);
+
+/**
+ * \brief               Read and update a seed file. Seed is added to this
+ *                      instance
+ *
+ * \param ctx           CTR_DRBG context
+ * \param path          Name of the file
+ *
+ * \return              0 if successful,
+ *                      MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR on file error,
+ *                      MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED or
+ *                      MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG
+ */
+int mbedtls_ctr_drbg_update_seed_file(mbedtls_ctr_drbg_context *ctx, const char *path);
+#endif /* MBEDTLS_FS_IO */
+
+/**
+ * \brief               Checkup routine
+ *
+ * \return              0 if successful, or 1 if the test failed
+ */
+int mbedtls_ctr_drbg_self_test(int verbose);
+
+/* Internal functions (do not call directly) */
+int mbedtls_ctr_drbg_seed_entropy_len(mbedtls_ctr_drbg_context *,
+        int (*)(void *, unsigned char *, size_t), void *,
+        const unsigned char *, size_t, size_t);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ctr_drbg.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/debug.h

@@ -0,0 +1,214 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_DEBUG_H
+#define MBEDTLS_DEBUG_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#include "ssl.h"
+
+#define tls_info(...)     log_info("tls", __VA_ARGS__)
+
+#if defined(MBEDTLS_ECP_C)
+    #include "ecp.h"
+#endif
+
+#if defined(MBEDTLS_DEBUG_C)
+
+#define MBEDTLS_DEBUG_STRIP_PARENS( ... )   __VA_ARGS__
+
+#define MBEDTLS_SSL_DEBUG_MSG( level, args )                    \
+    mbedtls_debug_print_msg( ssl, level, __FILE__, __LINE__,    \
+                             MBEDTLS_DEBUG_STRIP_PARENS args )
+
+#define MBEDTLS_SSL_DEBUG_RET( level, text, ret )                \
+    mbedtls_debug_print_ret( ssl, level, __FILE__, __LINE__, text, ret )
+
+#define MBEDTLS_SSL_DEBUG_BUF( level, text, buf, len )           \
+    mbedtls_debug_print_buf( ssl, level, __FILE__, __LINE__, text, buf, len )
+
+#if defined(MBEDTLS_BIGNUM_C)
+#define MBEDTLS_SSL_DEBUG_MPI( level, text, X )                  \
+    mbedtls_debug_print_mpi( ssl, level, __FILE__, __LINE__, text, X )
+#endif
+
+#if defined(MBEDTLS_ECP_C)
+#define MBEDTLS_SSL_DEBUG_ECP( level, text, X )                  \
+    mbedtls_debug_print_ecp( ssl, level, __FILE__, __LINE__, text, X )
+#endif
+
+#if defined(MBEDTLS_X509_CRT_PARSE_C)
+#define MBEDTLS_SSL_DEBUG_CRT( level, text, crt )                \
+    mbedtls_debug_print_crt( ssl, level, __FILE__, __LINE__, text, crt )
+#endif
+
+#else /* MBEDTLS_DEBUG_C */
+
+#define MBEDTLS_SSL_DEBUG_MSG( level, args )            do { } while( 0 )
+#define MBEDTLS_SSL_DEBUG_RET( level, text, ret )       do { } while( 0 )
+#define MBEDTLS_SSL_DEBUG_BUF( level, text, buf, len )  do { } while( 0 )
+#define MBEDTLS_SSL_DEBUG_MPI( level, text, X )         do { } while( 0 )
+#define MBEDTLS_SSL_DEBUG_ECP( level, text, X )         do { } while( 0 )
+#define MBEDTLS_SSL_DEBUG_CRT( level, text, crt )       do { } while( 0 )
+
+#endif /* MBEDTLS_DEBUG_C */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief   Set the threshold error level to handle globally all debug output.
+ *          Debug messages that have a level over the threshold value are
+ *          discarded.
+ *          (Default value: 0 = No debug )
+ *
+ * \param threshold     theshold level of messages to filter on. Messages at a
+ *                      higher level will be discarded.
+ *                          - Debug levels
+ *                              - 0 No debug
+ *                              - 1 Error
+ *                              - 2 State change
+ *                              - 3 Informational
+ *                              - 4 Verbose
+ */
+void mbedtls_debug_set_threshold(int threshold);
+
+/**
+ * \brief    Print a message to the debug output. This function is always used
+ *          through the MBEDTLS_SSL_DEBUG_MSG() macro, which supplies the ssl
+ *          context, file and line number parameters.
+ *
+ * \param ssl       SSL context
+ * \param level     error level of the debug message
+ * \param file      file the message has occurred in
+ * \param line      line number the message has occurred at
+ * \param format    format specifier, in printf format
+ * \param ...       variables used by the format specifier
+ *
+ * \attention       This function is intended for INTERNAL usage within the
+ *                  library only.
+ */
+void mbedtls_debug_print_msg(const mbedtls_ssl_context *ssl, int level,
+        const char *file, int line,
+        const char *format, ...);
+
+/**
+ * \brief   Print the return value of a function to the debug output. This
+ *          function is always used through the MBEDTLS_SSL_DEBUG_RET() macro,
+ *          which supplies the ssl context, file and line number parameters.
+ *
+ * \param ssl       SSL context
+ * \param level     error level of the debug message
+ * \param file      file the error has occurred in
+ * \param line      line number the error has occurred in
+ * \param text      the name of the function that returned the error
+ * \param ret       the return code value
+ *
+ * \attention       This function is intended for INTERNAL usage within the
+ *                  library only.
+ */
+void mbedtls_debug_print_ret(const mbedtls_ssl_context *ssl, int level,
+        const char *file, int line,
+        const char *text, int ret);
+
+/**
+ * \brief   Output a buffer of size len bytes to the debug output. This function
+ *          is always used through the MBEDTLS_SSL_DEBUG_BUF() macro,
+ *          which supplies the ssl context, file and line number parameters.
+ *
+ * \param ssl       SSL context
+ * \param level     error level of the debug message
+ * \param file      file the error has occurred in
+ * \param line      line number the error has occurred in
+ * \param text      a name or label for the buffer being dumped. Normally the
+ *                  variable or buffer name
+ * \param buf       the buffer to be outputted
+ * \param len       length of the buffer
+ *
+ * \attention       This function is intended for INTERNAL usage within the
+ *                  library only.
+ */
+void mbedtls_debug_print_buf(const mbedtls_ssl_context *ssl, int level,
+        const char *file, int line, const char *text,
+        const unsigned char *buf, size_t len);
+
+#if defined(MBEDTLS_BIGNUM_C)
+/**
+ * \brief   Print a MPI variable to the debug output. This function is always
+ *          used through the MBEDTLS_SSL_DEBUG_MPI() macro, which supplies the
+ *          ssl context, file and line number parameters.
+ *
+ * \param ssl       SSL context
+ * \param level     error level of the debug message
+ * \param file      file the error has occurred in
+ * \param line      line number the error has occurred in
+ * \param text      a name or label for the MPI being output. Normally the
+ *                  variable name
+ * \param X         the MPI variable
+ *
+ * \attention       This function is intended for INTERNAL usage within the
+ *                  library only.
+ */
+void mbedtls_debug_print_mpi(const mbedtls_ssl_context *ssl, int level,
+        const char *file, int line,
+        const char *text, const mbedtls_mpi *X);
+#endif
+
+#if defined(MBEDTLS_ECP_C)
+/**
+ * \brief   Print an ECP point to the debug output. This function is always
+ *          used through the MBEDTLS_SSL_DEBUG_ECP() macro, which supplies the
+ *          ssl context, file and line number parameters.
+ *
+ * \param ssl       SSL context
+ * \param level     error level of the debug message
+ * \param file      file the error has occurred in
+ * \param line      line number the error has occurred in
+ * \param text      a name or label for the ECP point being output. Normally the
+ *                  variable name
+ * \param X         the ECP point
+ *
+ * \attention       This function is intended for INTERNAL usage within the
+ *                  library only.
+ */
+void mbedtls_debug_print_ecp(const mbedtls_ssl_context *ssl, int level,
+        const char *file, int line,
+        const char *text, const mbedtls_ecp_point *X);
+#endif
+
+#if defined(MBEDTLS_X509_CRT_PARSE_C)
+/**
+ * \brief   Print a X.509 certificate structure to the debug output. This
+ *          function is always used through the MBEDTLS_SSL_DEBUG_CRT() macro,
+ *          which supplies the ssl context, file and line number parameters.
+ *
+ * \param ssl       SSL context
+ * \param level     error level of the debug message
+ * \param file      file the error has occurred in
+ * \param line      line number the error has occurred in
+ * \param text      a name or label for the certificate being output
+ * \param crt       X.509 certificate structure
+ *
+ * \attention       This function is intended for INTERNAL usage within the
+ *                  library only.
+ */
+void mbedtls_debug_print_crt(const mbedtls_ssl_context *ssl, int level,
+        const char *file, int line,
+        const char *text, const mbedtls_x509_crt *crt);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* debug.h */
+

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/des.h

@@ -0,0 +1,288 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_DES_H
+#define MBEDTLS_DES_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define MBEDTLS_DES_ENCRYPT     1
+#define MBEDTLS_DES_DECRYPT     0
+
+#define MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH              -0x0032  /**< The data input has an invalid length. */
+
+#define MBEDTLS_DES_KEY_SIZE    8
+
+#if !defined(MBEDTLS_DES_ALT)
+// Regular implementation
+//
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          DES context structure
+ */
+typedef struct {
+    uint32_t sk[32];            /*!<  DES subkeys       */
+}
+mbedtls_des_context;
+
+/**
+ * \brief          Triple-DES context structure
+ */
+typedef struct {
+    uint32_t sk[96];            /*!<  3DES subkeys      */
+}
+mbedtls_des3_context;
+
+/**
+ * \brief          Initialize DES context
+ *
+ * \param ctx      DES context to be initialized
+ */
+void mbedtls_des_init(mbedtls_des_context *ctx);
+
+/**
+ * \brief          Clear DES context
+ *
+ * \param ctx      DES context to be cleared
+ */
+void mbedtls_des_free(mbedtls_des_context *ctx);
+
+/**
+ * \brief          Initialize Triple-DES context
+ *
+ * \param ctx      DES3 context to be initialized
+ */
+void mbedtls_des3_init(mbedtls_des3_context *ctx);
+
+/**
+ * \brief          Clear Triple-DES context
+ *
+ * \param ctx      DES3 context to be cleared
+ */
+void mbedtls_des3_free(mbedtls_des3_context *ctx);
+
+/**
+ * \brief          Set key parity on the given key to odd.
+ *
+ *                 DES keys are 56 bits long, but each byte is padded with
+ *                 a parity bit to allow verification.
+ *
+ * \param key      8-byte secret key
+ */
+void mbedtls_des_key_set_parity(unsigned char key[MBEDTLS_DES_KEY_SIZE]);
+
+/**
+ * \brief          Check that key parity on the given key is odd.
+ *
+ *                 DES keys are 56 bits long, but each byte is padded with
+ *                 a parity bit to allow verification.
+ *
+ * \param key      8-byte secret key
+ *
+ * \return         0 is parity was ok, 1 if parity was not correct.
+ */
+int mbedtls_des_key_check_key_parity(const unsigned char key[MBEDTLS_DES_KEY_SIZE]);
+
+/**
+ * \brief          Check that key is not a weak or semi-weak DES key
+ *
+ * \param key      8-byte secret key
+ *
+ * \return         0 if no weak key was found, 1 if a weak key was identified.
+ */
+int mbedtls_des_key_check_weak(const unsigned char key[MBEDTLS_DES_KEY_SIZE]);
+
+/**
+ * \brief          DES key schedule (56-bit, encryption)
+ *
+ * \param ctx      DES context to be initialized
+ * \param key      8-byte secret key
+ *
+ * \return         0
+ */
+int mbedtls_des_setkey_enc(mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE]);
+
+/**
+ * \brief          DES key schedule (56-bit, decryption)
+ *
+ * \param ctx      DES context to be initialized
+ * \param key      8-byte secret key
+ *
+ * \return         0
+ */
+int mbedtls_des_setkey_dec(mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE]);
+
+/**
+ * \brief          Triple-DES key schedule (112-bit, encryption)
+ *
+ * \param ctx      3DES context to be initialized
+ * \param key      16-byte secret key
+ *
+ * \return         0
+ */
+int mbedtls_des3_set2key_enc(mbedtls_des3_context *ctx,
+        const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2]);
+
+/**
+ * \brief          Triple-DES key schedule (112-bit, decryption)
+ *
+ * \param ctx      3DES context to be initialized
+ * \param key      16-byte secret key
+ *
+ * \return         0
+ */
+int mbedtls_des3_set2key_dec(mbedtls_des3_context *ctx,
+        const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2]);
+
+/**
+ * \brief          Triple-DES key schedule (168-bit, encryption)
+ *
+ * \param ctx      3DES context to be initialized
+ * \param key      24-byte secret key
+ *
+ * \return         0
+ */
+int mbedtls_des3_set3key_enc(mbedtls_des3_context *ctx,
+        const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3]);
+
+/**
+ * \brief          Triple-DES key schedule (168-bit, decryption)
+ *
+ * \param ctx      3DES context to be initialized
+ * \param key      24-byte secret key
+ *
+ * \return         0
+ */
+int mbedtls_des3_set3key_dec(mbedtls_des3_context *ctx,
+        const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3]);
+
+/**
+ * \brief          DES-ECB block encryption/decryption
+ *
+ * \param ctx      DES context
+ * \param input    64-bit input block
+ * \param output   64-bit output block
+ *
+ * \return         0 if successful
+ */
+int mbedtls_des_crypt_ecb(mbedtls_des_context *ctx,
+                                      const unsigned char input[8],
+                                      unsigned char output[8]);
+
+#if defined(MBEDTLS_CIPHER_MODE_CBC)
+/**
+ * \brief          DES-CBC buffer encryption/decryption
+ *
+ * \note           Upon exit, the content of the IV is updated so that you can
+ *                 call the function same function again on the following
+ *                 block(s) of data and get the same result as if it was
+ *                 encrypted in one call. This allows a "streaming" usage.
+ *                 If on the other hand you need to retain the contents of the
+ *                 IV, you should either save it manually or use the cipher
+ *                 module instead.
+ *
+ * \param ctx      DES context
+ * \param mode     MBEDTLS_DES_ENCRYPT or MBEDTLS_DES_DECRYPT
+ * \param length   length of the input data
+ * \param iv       initialization vector (updated after use)
+ * \param input    buffer holding the input data
+ * \param output   buffer holding the output data
+ */
+int mbedtls_des_crypt_cbc(mbedtls_des_context *ctx,
+                                      int mode,
+                                      size_t length,
+                                      unsigned char iv[8],
+                                      const unsigned char *input,
+                                      unsigned char *output);
+#endif /* MBEDTLS_CIPHER_MODE_CBC */
+
+/**
+ * \brief          3DES-ECB block encryption/decryption
+ *
+ * \param ctx      3DES context
+ * \param input    64-bit input block
+ * \param output   64-bit output block
+ *
+ * \return         0 if successful
+ */
+int mbedtls_des3_crypt_ecb(mbedtls_des3_context *ctx,
+                                       const unsigned char input[8],
+                                       unsigned char output[8]);
+
+#if defined(MBEDTLS_CIPHER_MODE_CBC)
+/**
+ * \brief          3DES-CBC buffer encryption/decryption
+ *
+ * \note           Upon exit, the content of the IV is updated so that you can
+ *                 call the function same function again on the following
+ *                 block(s) of data and get the same result as if it was
+ *                 encrypted in one call. This allows a "streaming" usage.
+ *                 If on the other hand you need to retain the contents of the
+ *                 IV, you should either save it manually or use the cipher
+ *                 module instead.
+ *
+ * \param ctx      3DES context
+ * \param mode     MBEDTLS_DES_ENCRYPT or MBEDTLS_DES_DECRYPT
+ * \param length   length of the input data
+ * \param iv       initialization vector (updated after use)
+ * \param input    buffer holding the input data
+ * \param output   buffer holding the output data
+ *
+ * \return         0 if successful, or MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH
+ */
+int mbedtls_des3_crypt_cbc(mbedtls_des3_context *ctx,
+                                       int mode,
+                                       size_t length,
+                                       unsigned char iv[8],
+                                       const unsigned char *input,
+                                       unsigned char *output);
+#endif /* MBEDTLS_CIPHER_MODE_CBC */
+
+/**
+ * \brief          Internal function for key expansion.
+ *                 (Only exposed to allow overriding it,
+ *                 see MBEDTLS_DES_SETKEY_ALT)
+ *
+ * \param SK       Round keys
+ * \param key      Base key
+ */
+void mbedtls_des_setkey(uint32_t SK[32],
+                                    const unsigned char key[MBEDTLS_DES_KEY_SIZE]);
+#ifdef __cplusplus
+}
+#endif
+
+#else  /* MBEDTLS_DES_ALT */
+#include "des_alt.h"
+#endif /* MBEDTLS_DES_ALT */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          Checkup routine
+ *
+ * \return         0 if successful, or 1 if the test failed
+ */
+int mbedtls_des_self_test(int verbose);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* des.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/ecp.h

@@ -0,0 +1,663 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_ECP_H
+#define MBEDTLS_ECP_H
+
+#include "bignum.h"
+
+/*
+ * ECP error codes
+ */
+#define MBEDTLS_ERR_ECP_BAD_INPUT_DATA                    -0x4F80  /**< Bad input parameters to function. */
+#define MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL                  -0x4F00  /**< The buffer is too small to write to. */
+#define MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE               -0x4E80  /**< Requested curve not available. */
+#define MBEDTLS_ERR_ECP_VERIFY_FAILED                     -0x4E00  /**< The signature is not valid. */
+#define MBEDTLS_ERR_ECP_ALLOC_FAILED                      -0x4D80  /**< Memory allocation failed. */
+#define MBEDTLS_ERR_ECP_RANDOM_FAILED                     -0x4D00  /**< Generation of random value, such as (ephemeral) key, failed. */
+#define MBEDTLS_ERR_ECP_INVALID_KEY                       -0x4C80  /**< Invalid private or public key. */
+#define MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH                  -0x4C00  /**< Signature is valid but shorter than the user-supplied length. */
+
+#if !defined(MBEDTLS_ECP_ALT)
+/*
+ * default mbed TLS elliptic curve arithmetic implementation
+ *
+ * (in case MBEDTLS_ECP_ALT is defined then the developer has to provide an
+ * alternative implementation for the whole module and it will replace this
+ * one.)
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Domain parameters (curve, subgroup and generator) identifiers.
+ *
+ * Only curves over prime fields are supported.
+ *
+ * \warning This library does not support validation of arbitrary domain
+ * parameters. Therefore, only well-known domain parameters from trusted
+ * sources should be used. See mbedtls_ecp_group_load().
+ */
+typedef enum {
+    MBEDTLS_ECP_DP_NONE = 0,
+    MBEDTLS_ECP_DP_SECP192R1,      /*!< 192-bits NIST curve  */
+    MBEDTLS_ECP_DP_SECP224R1,      /*!< 224-bits NIST curve  */
+    MBEDTLS_ECP_DP_SECP256R1,      /*!< 256-bits NIST curve  */
+    MBEDTLS_ECP_DP_SECP384R1,      /*!< 384-bits NIST curve  */
+    MBEDTLS_ECP_DP_SECP521R1,      /*!< 521-bits NIST curve  */
+    MBEDTLS_ECP_DP_BP256R1,        /*!< 256-bits Brainpool curve */
+    MBEDTLS_ECP_DP_BP384R1,        /*!< 384-bits Brainpool curve */
+    MBEDTLS_ECP_DP_BP512R1,        /*!< 512-bits Brainpool curve */
+    MBEDTLS_ECP_DP_CURVE25519,           /*!< Curve25519               */
+    MBEDTLS_ECP_DP_SECP192K1,      /*!< 192-bits "Koblitz" curve */
+    MBEDTLS_ECP_DP_SECP224K1,      /*!< 224-bits "Koblitz" curve */
+    MBEDTLS_ECP_DP_SECP256K1,      /*!< 256-bits "Koblitz" curve */
+} mbedtls_ecp_group_id;
+
+/**
+ * Number of supported curves (plus one for NONE).
+ *
+ * (Montgomery curves excluded for now.)
+ */
+#define MBEDTLS_ECP_DP_MAX     12
+
+/**
+ * Curve information for use by other modules
+ */
+typedef struct {
+    mbedtls_ecp_group_id grp_id;    /*!< Internal identifier        */
+    uint16_t tls_id;                /*!< TLS NamedCurve identifier  */
+    uint16_t bit_size;              /*!< Curve size in bits         */
+    const char *name;               /*!< Human-friendly name        */
+} mbedtls_ecp_curve_info;
+
+/**
+ * \brief           ECP point structure (jacobian coordinates)
+ *
+ * \note            All functions expect and return points satisfying
+ *                  the following condition: Z == 0 or Z == 1. (Other
+ *                  values of Z are used by internal functions only.)
+ *                  The point is zero, or "at infinity", if Z == 0.
+ *                  Otherwise, X and Y are its standard (affine) coordinates.
+ */
+typedef struct {
+    mbedtls_mpi X;          /*!<  the point's X coordinate  */
+    mbedtls_mpi Y;          /*!<  the point's Y coordinate  */
+    mbedtls_mpi Z;          /*!<  the point's Z coordinate  */
+}
+mbedtls_ecp_point;
+
+/**
+ * \brief           ECP group structure
+ *
+ * We consider two types of curves equations:
+ * 1. Short Weierstrass y^2 = x^3 + A x + B     mod P   (SEC1 + RFC 4492)
+ * 2. Montgomery,       y^2 = x^3 + A x^2 + x   mod P   (Curve25519 + draft)
+ * In both cases, a generator G for a prime-order subgroup is fixed. In the
+ * short weierstrass, this subgroup is actually the whole curve, and its
+ * cardinal is denoted by N.
+ *
+ * In the case of Short Weierstrass curves, our code requires that N is an odd
+ * prime. (Use odd in mbedtls_ecp_mul() and prime in mbedtls_ecdsa_sign() for blinding.)
+ *
+ * In the case of Montgomery curves, we don't store A but (A + 2) / 4 which is
+ * the quantity actually used in the formulas. Also, nbits is not the size of N
+ * but the required size for private keys.
+ *
+ * If modp is NULL, reduction modulo P is done using a generic algorithm.
+ * Otherwise, it must point to a function that takes an mbedtls_mpi in the range
+ * 0..2^(2*pbits)-1 and transforms it in-place in an integer of little more
+ * than pbits, so that the integer may be efficiently brought in the 0..P-1
+ * range by a few additions or substractions. It must return 0 on success and
+ * non-zero on failure.
+ */
+typedef struct {
+    mbedtls_ecp_group_id id;    /*!<  internal group identifier                     */
+    mbedtls_mpi P;              /*!<  prime modulus of the base field               */
+    mbedtls_mpi A;              /*!<  1. A in the equation, or 2. (A + 2) / 4       */
+    mbedtls_mpi B;              /*!<  1. B in the equation, or 2. unused            */
+    mbedtls_ecp_point G;        /*!<  generator of the (sub)group used              */
+    mbedtls_mpi N;              /*!<  1. the order of G, or 2. unused               */
+    size_t pbits;       /*!<  number of bits in P                           */
+    size_t nbits;       /*!<  number of bits in 1. P, or 2. private keys    */
+    unsigned int h;     /*!<  internal: 1 if the constants are static       */
+    int (*modp)(mbedtls_mpi *); /*!<  function for fast reduction mod P             */
+    int (*t_pre)(mbedtls_ecp_point *, void *);  /*!< unused                         */
+    int (*t_post)(mbedtls_ecp_point *, void *); /*!< unused                         */
+    void *t_data;                       /*!< unused                         */
+    mbedtls_ecp_point *T;       /*!<  pre-computed points for ecp_mul_comb()        */
+    size_t T_size;      /*!<  number for pre-computed points                */
+}
+mbedtls_ecp_group;
+
+/**
+ * \brief           ECP key pair structure
+ *
+ * A generic key pair that could be used for ECDSA, fixed ECDH, etc.
+ *
+ * \note Members purposefully in the same order as struc mbedtls_ecdsa_context.
+ */
+typedef struct {
+    mbedtls_ecp_group grp;      /*!<  Elliptic curve and base point     */
+    mbedtls_mpi d;              /*!<  our secret value                  */
+    mbedtls_ecp_point Q;        /*!<  our public value                  */
+}
+mbedtls_ecp_keypair;
+
+/**
+ * \name SECTION: Module settings
+ *
+ * The configuration options you can set for this module are in this section.
+ * Either change them in config.h or define them on the compiler command line.
+ * \{
+ */
+
+#if !defined(MBEDTLS_ECP_MAX_BITS)
+/**
+ * Maximum size of the groups (that is, of N and P)
+ */
+#define MBEDTLS_ECP_MAX_BITS     521   /**< Maximum bit size of groups */
+#endif
+
+#define MBEDTLS_ECP_MAX_BYTES    ( ( MBEDTLS_ECP_MAX_BITS + 7 ) / 8 )
+#define MBEDTLS_ECP_MAX_PT_LEN   ( 2 * MBEDTLS_ECP_MAX_BYTES + 1 )
+
+#if !defined(MBEDTLS_ECP_WINDOW_SIZE)
+/*
+ * Maximum "window" size used for point multiplication.
+ * Default: 6.
+ * Minimum value: 2. Maximum value: 7.
+ *
+ * Result is an array of at most ( 1 << ( MBEDTLS_ECP_WINDOW_SIZE - 1 ) )
+ * points used for point multiplication. This value is directly tied to EC
+ * peak memory usage, so decreasing it by one should roughly cut memory usage
+ * by two (if large curves are in use).
+ *
+ * Reduction in size may reduce speed, but larger curves are impacted first.
+ * Sample performances (in ECDHE handshakes/s, with FIXED_POINT_OPTIM = 1):
+ *      w-size:     6       5       4       3       2
+ *      521       145     141     135     120      97
+ *      384       214     209     198     177     146
+ *      256       320     320     303     262     226
+
+ *      224       475     475     453     398     342
+ *      192       640     640     633     587     476
+ */
+#define MBEDTLS_ECP_WINDOW_SIZE    6   /**< Maximum window size used */
+#endif /* MBEDTLS_ECP_WINDOW_SIZE */
+
+#if !defined(MBEDTLS_ECP_FIXED_POINT_OPTIM)
+/*
+ * Trade memory for speed on fixed-point multiplication.
+ *
+ * This speeds up repeated multiplication of the generator (that is, the
+ * multiplication in ECDSA signatures, and half of the multiplications in
+ * ECDSA verification and ECDHE) by a factor roughly 3 to 4.
+ *
+ * The cost is increasing EC peak memory usage by a factor roughly 2.
+ *
+ * Change this value to 0 to reduce peak memory usage.
+ */
+#define MBEDTLS_ECP_FIXED_POINT_OPTIM  1   /**< Enable fixed-point speed-up */
+#endif /* MBEDTLS_ECP_FIXED_POINT_OPTIM */
+
+/* \} name SECTION: Module settings */
+
+/*
+ * Point formats, from RFC 4492's enum ECPointFormat
+ */
+#define MBEDTLS_ECP_PF_UNCOMPRESSED    0   /**< Uncompressed point format */
+#define MBEDTLS_ECP_PF_COMPRESSED      1   /**< Compressed point format */
+
+/*
+ * Some other constants from RFC 4492
+ */
+#define MBEDTLS_ECP_TLS_NAMED_CURVE    3   /**< ECCurveType's named_curve */
+
+/**
+ * \brief           Get the list of supported curves in order of preferrence
+ *                  (full information)
+ *
+ * \return          A statically allocated array, the last entry is 0.
+ */
+const mbedtls_ecp_curve_info *mbedtls_ecp_curve_list(void);
+
+/**
+ * \brief           Get the list of supported curves in order of preferrence
+ *                  (grp_id only)
+ *
+ * \return          A statically allocated array,
+ *                  terminated with MBEDTLS_ECP_DP_NONE.
+ */
+const mbedtls_ecp_group_id *mbedtls_ecp_grp_id_list(void);
+
+/**
+ * \brief           Get curve information from an internal group identifier
+ *
+ * \param grp_id    A MBEDTLS_ECP_DP_XXX value
+ *
+ * \return          The associated curve information or NULL
+ */
+const mbedtls_ecp_curve_info *mbedtls_ecp_curve_info_from_grp_id(mbedtls_ecp_group_id grp_id);
+
+/**
+ * \brief           Get curve information from a TLS NamedCurve value
+ *
+ * \param tls_id    A MBEDTLS_ECP_DP_XXX value
+ *
+ * \return          The associated curve information or NULL
+ */
+const mbedtls_ecp_curve_info *mbedtls_ecp_curve_info_from_tls_id(uint16_t tls_id);
+
+/**
+ * \brief           Get curve information from a human-readable name
+ *
+ * \param name      The name
+ *
+ * \return          The associated curve information or NULL
+ */
+const mbedtls_ecp_curve_info *mbedtls_ecp_curve_info_from_name(const char *name);
+
+/**
+ * \brief           Initialize a point (as zero)
+ */
+void mbedtls_ecp_point_init(mbedtls_ecp_point *pt);
+
+/**
+ * \brief           Initialize a group (to something meaningless)
+ */
+void mbedtls_ecp_group_init(mbedtls_ecp_group *grp);
+
+/**
+ * \brief           Initialize a key pair (as an invalid one)
+ */
+void mbedtls_ecp_keypair_init(mbedtls_ecp_keypair *key);
+
+/**
+ * \brief           Free the components of a point
+ */
+void mbedtls_ecp_point_free(mbedtls_ecp_point *pt);
+
+/**
+ * \brief           Free the components of an ECP group
+ */
+void mbedtls_ecp_group_free(mbedtls_ecp_group *grp);
+
+/**
+ * \brief           Free the components of a key pair
+ */
+void mbedtls_ecp_keypair_free(mbedtls_ecp_keypair *key);
+
+/**
+ * \brief           Copy the contents of point Q into P
+ *
+ * \param P         Destination point
+ * \param Q         Source point
+ *
+ * \return          0 if successful,
+ *                  MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_ecp_copy(mbedtls_ecp_point *P, const mbedtls_ecp_point *Q);
+
+/**
+ * \brief           Copy the contents of a group object
+ *
+ * \param dst       Destination group
+ * \param src       Source group
+ *
+ * \return          0 if successful,
+ *                  MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_ecp_group_copy(mbedtls_ecp_group *dst, const mbedtls_ecp_group *src);
+
+/**
+ * \brief           Set a point to zero
+ *
+ * \param pt        Destination point
+ *
+ * \return          0 if successful,
+ *                  MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_ecp_set_zero(mbedtls_ecp_point *pt);
+
+/**
+ * \brief           Tell if a point is zero
+ *
+ * \param pt        Point to test
+ *
+ * \return          1 if point is zero, 0 otherwise
+ */
+int mbedtls_ecp_is_zero(mbedtls_ecp_point *pt);
+
+/**
+ * \brief           Compare two points
+ *
+ * \note            This assumes the points are normalized. Otherwise,
+ *                  they may compare as "not equal" even if they are.
+ *
+ * \param P         First point to compare
+ * \param Q         Second point to compare
+ *
+ * \return          0 if the points are equal,
+ *                  MBEDTLS_ERR_ECP_BAD_INPUT_DATA otherwise
+ */
+int mbedtls_ecp_point_cmp(const mbedtls_ecp_point *P,
+                                      const mbedtls_ecp_point *Q);
+
+/**
+ * \brief           Import a non-zero point from two ASCII strings
+ *
+ * \param P         Destination point
+ * \param radix     Input numeric base
+ * \param x         First affine coordinate as a null-terminated string
+ * \param y         Second affine coordinate as a null-terminated string
+ *
+ * \return          0 if successful, or a MBEDTLS_ERR_MPI_XXX error code
+ */
+int mbedtls_ecp_point_read_string(mbedtls_ecp_point *P, int radix,
+        const char *x, const char *y);
+
+/**
+ * \brief           Export a point into unsigned binary data
+ *
+ * \param grp       Group to which the point should belong
+ * \param P         Point to export
+ * \param format    Point format, should be a MBEDTLS_ECP_PF_XXX macro
+ * \param olen      Length of the actual output
+ * \param buf       Output buffer
+ * \param buflen    Length of the output buffer
+ *
+ * \return          0 if successful,
+ *                  or MBEDTLS_ERR_ECP_BAD_INPUT_DATA
+ *                  or MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+ */
+int mbedtls_ecp_point_write_binary(const mbedtls_ecp_group *grp, const mbedtls_ecp_point *P,
+        int format, size_t *olen,
+        unsigned char *buf, size_t buflen);
+
+/**
+ * \brief           Import a point from unsigned binary data
+ *
+ * \param grp       Group to which the point should belong
+ * \param P         Point to import
+ * \param buf       Input buffer
+ * \param ilen      Actual length of input
+ *
+ * \return          0 if successful,
+ *                  MBEDTLS_ERR_ECP_BAD_INPUT_DATA if input is invalid,
+ *                  MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed,
+ *                  MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE if the point format
+ *                  is not implemented.
+ *
+ * \note            This function does NOT check that the point actually
+ *                  belongs to the given group, see mbedtls_ecp_check_pubkey() for
+ *                  that.
+ */
+int mbedtls_ecp_point_read_binary(const mbedtls_ecp_group *grp, mbedtls_ecp_point *P,
+        const unsigned char *buf, size_t ilen);
+
+/**
+ * \brief           Import a point from a TLS ECPoint record
+ *
+ * \param grp       ECP group used
+ * \param pt        Destination point
+ * \param buf       $(Start of input buffer)
+ * \param len       Buffer length
+ *
+ * \note            buf is updated to point right after the ECPoint on exit
+ *
+ * \return          0 if successful,
+ *                  MBEDTLS_ERR_MPI_XXX if initialization failed
+ *                  MBEDTLS_ERR_ECP_BAD_INPUT_DATA if input is invalid
+ */
+int mbedtls_ecp_tls_read_point(const mbedtls_ecp_group *grp, mbedtls_ecp_point *pt,
+        const unsigned char **buf, size_t len);
+
+/**
+ * \brief           Export a point as a TLS ECPoint record
+ *
+ * \param grp       ECP group used
+ * \param pt        Point to export
+ * \param format    Export format
+ * \param olen      length of data written
+ * \param buf       Buffer to write to
+ * \param blen      Buffer length
+ *
+ * \return          0 if successful,
+ *                  or MBEDTLS_ERR_ECP_BAD_INPUT_DATA
+ *                  or MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+ */
+int mbedtls_ecp_tls_write_point(const mbedtls_ecp_group *grp, const mbedtls_ecp_point *pt,
+        int format, size_t *olen,
+        unsigned char *buf, size_t blen);
+
+/**
+ * \brief           Set a group using well-known domain parameters
+ *
+ * \param grp       Destination group
+ * \param index     Index in the list of well-known domain parameters
+ *
+ * \return          0 if successful,
+ *                  MBEDTLS_ERR_MPI_XXX if initialization failed
+ *                  MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE for unkownn groups
+ *
+ * \note            Index should be a value of RFC 4492's enum NamedCurve,
+ *                  usually in the form of a MBEDTLS_ECP_DP_XXX macro.
+ */
+int mbedtls_ecp_group_load(mbedtls_ecp_group *grp, mbedtls_ecp_group_id index);
+
+/**
+ * \brief           Set a group from a TLS ECParameters record
+ *
+ * \param grp       Destination group
+ * \param buf       &(Start of input buffer)
+ * \param len       Buffer length
+ *
+ * \note            buf is updated to point right after ECParameters on exit
+ *
+ * \return          0 if successful,
+ *                  MBEDTLS_ERR_MPI_XXX if initialization failed
+ *                  MBEDTLS_ERR_ECP_BAD_INPUT_DATA if input is invalid
+ */
+int mbedtls_ecp_tls_read_group(mbedtls_ecp_group *grp, const unsigned char **buf, size_t len);
+
+/**
+ * \brief           Write the TLS ECParameters record for a group
+ *
+ * \param grp       ECP group used
+ * \param olen      Number of bytes actually written
+ * \param buf       Buffer to write to
+ * \param blen      Buffer length
+ *
+ * \return          0 if successful,
+ *                  or MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+ */
+int mbedtls_ecp_tls_write_group(const mbedtls_ecp_group *grp, size_t *olen,
+        unsigned char *buf, size_t blen);
+
+/**
+ * \brief           Multiplication by an integer: R = m * P
+ *                  (Not thread-safe to use same group in multiple threads)
+ *
+ * \note            In order to prevent timing attacks, this function
+ *                  executes the exact same sequence of (base field)
+ *                  operations for any valid m. It avoids any if-branch or
+ *                  array index depending on the value of m.
+ *
+ * \note            If f_rng is not NULL, it is used to randomize intermediate
+ *                  results in order to prevent potential timing attacks
+ *                  targeting these results. It is recommended to always
+ *                  provide a non-NULL f_rng (the overhead is negligible).
+ *
+ * \param grp       ECP group
+ * \param R         Destination point
+ * \param m         Integer by which to multiply
+ * \param P         Point to multiply
+ * \param f_rng     RNG function (see notes)
+ * \param p_rng     RNG parameter
+ *
+ * \return          0 if successful,
+ *                  MBEDTLS_ERR_ECP_INVALID_KEY if m is not a valid privkey
+ *                  or P is not a valid pubkey,
+ *                  MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_ecp_mul(mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
+                                const mbedtls_mpi *m, const mbedtls_ecp_point *P,
+                                int (*f_rng)(void *, unsigned char *, size_t), void *p_rng);
+
+/**
+ * \brief           Multiplication and addition of two points by integers:
+ *                  R = m * P + n * Q
+ *                  (Not thread-safe to use same group in multiple threads)
+ *
+ * \note            In contrast to mbedtls_ecp_mul(), this function does not guarantee
+ *                  a constant execution flow and timing.
+ *
+ * \param grp       ECP group
+ * \param R         Destination point
+ * \param m         Integer by which to multiply P
+ * \param P         Point to multiply by m
+ * \param n         Integer by which to multiply Q
+ * \param Q         Point to be multiplied by n
+ *
+ * \return          0 if successful,
+ *                  MBEDTLS_ERR_ECP_INVALID_KEY if m or n is not a valid privkey
+ *                  or P or Q is not a valid pubkey,
+ *                  MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
+ */
+int mbedtls_ecp_muladd(mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
+                                   const mbedtls_mpi *m, const mbedtls_ecp_point *P,
+                                   const mbedtls_mpi *n, const mbedtls_ecp_point *Q);
+
+/**
+ * \brief           Check that a point is a valid public key on this curve
+ *
+ * \param grp       Curve/group the point should belong to
+ * \param pt        Point to check
+ *
+ * \return          0 if point is a valid public key,
+ *                  MBEDTLS_ERR_ECP_INVALID_KEY otherwise.
+ *
+ * \note            This function only checks the point is non-zero, has valid
+ *                  coordinates and lies on the curve, but not that it is
+ *                  indeed a multiple of G. This is additional check is more
+ *                  expensive, isn't required by standards, and shouldn't be
+ *                  necessary if the group used has a small cofactor. In
+ *                  particular, it is useless for the NIST groups which all
+ *                  have a cofactor of 1.
+ *
+ * \note            Uses bare components rather than an mbedtls_ecp_keypair structure
+ *                  in order to ease use with other structures such as
+ *                  mbedtls_ecdh_context of mbedtls_ecdsa_context.
+ */
+int mbedtls_ecp_check_pubkey(const mbedtls_ecp_group *grp, const mbedtls_ecp_point *pt);
+
+/**
+ * \brief           Check that an mbedtls_mpi is a valid private key for this curve
+ *
+ * \param grp       Group used
+ * \param d         Integer to check
+ *
+ * \return          0 if point is a valid private key,
+ *                  MBEDTLS_ERR_ECP_INVALID_KEY otherwise.
+ *
+ * \note            Uses bare components rather than an mbedtls_ecp_keypair structure
+ *                  in order to ease use with other structures such as
+ *                  mbedtls_ecdh_context of mbedtls_ecdsa_context.
+ */
+int mbedtls_ecp_check_privkey(const mbedtls_ecp_group *grp, const mbedtls_mpi *d);
+
+/**
+ * \brief           Generate a keypair with configurable base point
+ *
+ * \param grp       ECP group
+ * \param G         Chosen base point
+ * \param d         Destination MPI (secret part)
+ * \param Q         Destination point (public part)
+ * \param f_rng     RNG function
+ * \param p_rng     RNG parameter
+ *
+ * \return          0 if successful,
+ *                  or a MBEDTLS_ERR_ECP_XXX or MBEDTLS_MPI_XXX error code
+ *
+ * \note            Uses bare components rather than an mbedtls_ecp_keypair structure
+ *                  in order to ease use with other structures such as
+ *                  mbedtls_ecdh_context of mbedtls_ecdsa_context.
+ */
+int mbedtls_ecp_gen_keypair_base(mbedtls_ecp_group *grp,
+        const mbedtls_ecp_point *G,
+        mbedtls_mpi *d, mbedtls_ecp_point *Q,
+        int (*f_rng)(void *, unsigned char *, size_t),
+        void *p_rng);
+
+/**
+ * \brief           Generate a keypair
+ *
+ * \param grp       ECP group
+ * \param d         Destination MPI (secret part)
+ * \param Q         Destination point (public part)
+ * \param f_rng     RNG function
+ * \param p_rng     RNG parameter
+ *
+ * \return          0 if successful,
+ *                  or a MBEDTLS_ERR_ECP_XXX or MBEDTLS_MPI_XXX error code
+ *
+ * \note            Uses bare components rather than an mbedtls_ecp_keypair structure
+ *                  in order to ease use with other structures such as
+ *                  mbedtls_ecdh_context of mbedtls_ecdsa_context.
+ */
+int mbedtls_ecp_gen_keypair(mbedtls_ecp_group *grp, mbedtls_mpi *d, mbedtls_ecp_point *Q,
+                                        int (*f_rng)(void *, unsigned char *, size_t),
+                                        void *p_rng);
+
+/**
+ * \brief           Generate a keypair
+ *
+ * \param grp_id    ECP group identifier
+ * \param key       Destination keypair
+ * \param f_rng     RNG function
+ * \param p_rng     RNG parameter
+ *
+ * \return          0 if successful,
+ *                  or a MBEDTLS_ERR_ECP_XXX or MBEDTLS_MPI_XXX error code
+ */
+int mbedtls_ecp_gen_key(mbedtls_ecp_group_id grp_id, mbedtls_ecp_keypair *key,
+                                    int (*f_rng)(void *, unsigned char *, size_t), void *p_rng);
+
+/**
+ * \brief           Check a public-private key pair
+ *
+ * \param pub       Keypair structure holding a public key
+ * \param prv       Keypair structure holding a private (plus public) key
+ *
+ * \return          0 if successful (keys are valid and match), or
+ *                  MBEDTLS_ERR_ECP_BAD_INPUT_DATA, or
+ *                  a MBEDTLS_ERR_ECP_XXX or MBEDTLS_ERR_MPI_XXX code.
+ */
+int mbedtls_ecp_check_pub_priv(const mbedtls_ecp_keypair *pub, const mbedtls_ecp_keypair *prv);
+
+#if defined(MBEDTLS_SELF_TEST)
+
+/**
+ * \brief          Checkup routine
+ *
+ * \return         0 if successful, or 1 if a test failed
+ */
+int mbedtls_ecp_self_test(int verbose);
+
+#endif /* MBEDTLS_SELF_TEST */
+
+#ifdef __cplusplus
+}
+#endif
+
+#else  /* MBEDTLS_ECP_ALT */
+#include "ecp_alt.h"
+#endif /* MBEDTLS_ECP_ALT */
+
+#endif /* ecp.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/entropy.h

@@ -0,0 +1,269 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_ENTROPY_H
+#define MBEDTLS_ENTROPY_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#include <stddef.h>
+
+#if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_ENTROPY_FORCE_SHA256)
+    #include "sha512.h"
+    #define MBEDTLS_ENTROPY_SHA512_ACCUMULATOR
+#else
+    #if defined(MBEDTLS_SHA256_C)
+        #define MBEDTLS_ENTROPY_SHA256_ACCUMULATOR
+        #include "sha256.h"
+    #endif
+#endif
+
+#if defined(MBEDTLS_THREADING_C)
+    #include "threading.h"
+#endif
+
+#if defined(MBEDTLS_HAVEGE_C)
+    #include "havege.h"
+#endif
+
+#define MBEDTLS_ERR_ENTROPY_SOURCE_FAILED                 -0x003C  /**< Critical entropy source failure. */
+#define MBEDTLS_ERR_ENTROPY_MAX_SOURCES                   -0x003E  /**< No more sources can be added. */
+#define MBEDTLS_ERR_ENTROPY_NO_SOURCES_DEFINED            -0x0040  /**< No sources have been added to poll. */
+#define MBEDTLS_ERR_ENTROPY_NO_STRONG_SOURCE              -0x003D  /**< No strong sources have been added to poll. */
+#define MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR                 -0x003F  /**< Read/write error in file. */
+
+/**
+ * \name SECTION: Module settings
+ *
+ * The configuration options you can set for this module are in this section.
+ * Either change them in config.h or define them on the compiler command line.
+ * \{
+ */
+
+#if !defined(MBEDTLS_ENTROPY_MAX_SOURCES)
+    #define MBEDTLS_ENTROPY_MAX_SOURCES     20      /**< Maximum number of sources supported */
+#endif
+
+#if !defined(MBEDTLS_ENTROPY_MAX_GATHER)
+    #define MBEDTLS_ENTROPY_MAX_GATHER      128     /**< Maximum amount requested from entropy sources */
+#endif
+
+/* \} name SECTION: Module settings */
+
+#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
+    #define MBEDTLS_ENTROPY_BLOCK_SIZE      64      /**< Block size of entropy accumulator (SHA-512) */
+#else
+    #define MBEDTLS_ENTROPY_BLOCK_SIZE      32      /**< Block size of entropy accumulator (SHA-256) */
+#endif
+
+#define MBEDTLS_ENTROPY_MAX_SEED_SIZE   1024    /**< Maximum size of seed we read from seed file */
+#define MBEDTLS_ENTROPY_SOURCE_MANUAL   MBEDTLS_ENTROPY_MAX_SOURCES
+
+#define MBEDTLS_ENTROPY_SOURCE_STRONG   1       /**< Entropy source is strong   */
+#define MBEDTLS_ENTROPY_SOURCE_WEAK     0       /**< Entropy source is weak     */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief           Entropy poll callback pointer
+ *
+ * \param data      Callback-specific data pointer
+ * \param output    Data to fill
+ * \param len       Maximum size to provide
+ * \param olen      The actual amount of bytes put into the buffer (Can be 0)
+ *
+ * \return          0 if no critical failures occurred,
+ *                  MBEDTLS_ERR_ENTROPY_SOURCE_FAILED otherwise
+ */
+typedef int (*mbedtls_entropy_f_source_ptr)(void *data, unsigned char *output, size_t len,
+        size_t *olen);
+
+/**
+ * \brief           Entropy source state
+ */
+typedef struct {
+    mbedtls_entropy_f_source_ptr    f_source;   /**< The entropy source callback */
+    void           *p_source;   /**< The callback data pointer */
+    size_t          size;       /**< Amount received in bytes */
+    size_t          threshold;  /**< Minimum bytes required before release */
+    int             strong;     /**< Is the source strong? */
+}
+mbedtls_entropy_source_state;
+
+/**
+ * \brief           Entropy context structure
+ */
+typedef struct {
+#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
+    mbedtls_sha512_context  accumulator;
+#else
+    mbedtls_sha256_context  accumulator;
+#endif
+    int             source_count;
+    mbedtls_entropy_source_state    source[MBEDTLS_ENTROPY_MAX_SOURCES];
+#if defined(MBEDTLS_HAVEGE_C)
+    mbedtls_havege_state    havege_data;
+#endif
+#if defined(MBEDTLS_THREADING_C)
+    mbedtls_threading_mutex_t mutex;    /*!< mutex                  */
+#endif
+#if defined(MBEDTLS_ENTROPY_NV_SEED)
+    int initial_entropy_run;
+#endif
+}
+mbedtls_entropy_context;
+
+/**
+ * \brief           Initialize the context
+ *
+ * \param ctx       Entropy context to initialize
+ */
+void mbedtls_entropy_init(mbedtls_entropy_context *ctx);
+
+/**
+ * \brief           Free the data in the context
+ *
+ * \param ctx       Entropy context to free
+ */
+void mbedtls_entropy_free(mbedtls_entropy_context *ctx);
+
+/**
+ * \brief           Adds an entropy source to poll
+ *                  (Thread-safe if MBEDTLS_THREADING_C is enabled)
+ *
+ * \param ctx       Entropy context
+ * \param f_source  Entropy function
+ * \param p_source  Function data
+ * \param threshold Minimum required from source before entropy is released
+ *                  ( with mbedtls_entropy_func() ) (in bytes)
+ * \param strong    MBEDTLS_ENTROPY_SOURCE_STRONG or
+ *                  MBEDTSL_ENTROPY_SOURCE_WEAK.
+ *                  At least one strong source needs to be added.
+ *                  Weaker sources (such as the cycle counter) can be used as
+ *                  a complement.
+ *
+ * \return          0 if successful or MBEDTLS_ERR_ENTROPY_MAX_SOURCES
+ */
+int mbedtls_entropy_add_source(mbedtls_entropy_context *ctx,
+        mbedtls_entropy_f_source_ptr f_source, void *p_source,
+        size_t threshold, int strong);
+
+/**
+ * \brief           Trigger an extra gather poll for the accumulator
+ *                  (Thread-safe if MBEDTLS_THREADING_C is enabled)
+ *
+ * \param ctx       Entropy context
+ *
+ * \return          0 if successful, or MBEDTLS_ERR_ENTROPY_SOURCE_FAILED
+ */
+int mbedtls_entropy_gather(mbedtls_entropy_context *ctx);
+
+/**
+ * \brief           Retrieve entropy from the accumulator
+ *                  (Maximum length: MBEDTLS_ENTROPY_BLOCK_SIZE)
+ *                  (Thread-safe if MBEDTLS_THREADING_C is enabled)
+ *
+ * \param data      Entropy context
+ * \param output    Buffer to fill
+ * \param len       Number of bytes desired, must be at most MBEDTLS_ENTROPY_BLOCK_SIZE
+ *
+ * \return          0 if successful, or MBEDTLS_ERR_ENTROPY_SOURCE_FAILED
+ */
+int mbedtls_entropy_func(void *data, unsigned char *output, size_t len);
+
+/**
+ * \brief           Add data to the accumulator manually
+ *                  (Thread-safe if MBEDTLS_THREADING_C is enabled)
+ *
+ * \param ctx       Entropy context
+ * \param data      Data to add
+ * \param len       Length of data
+ *
+ * \return          0 if successful
+ */
+int mbedtls_entropy_update_manual(mbedtls_entropy_context *ctx,
+        const unsigned char *data, size_t len);
+
+#if defined(MBEDTLS_ENTROPY_NV_SEED)
+/**
+ * \brief           Trigger an update of the seed file in NV by using the
+ *                  current entropy pool.
+ *
+ * \param ctx       Entropy context
+ *
+ * \return          0 if successful
+ */
+int mbedtls_entropy_update_nv_seed(mbedtls_entropy_context *ctx);
+#endif /* MBEDTLS_ENTROPY_NV_SEED */
+
+#if defined(MBEDTLS_FS_IO)
+/**
+ * \brief               Write a seed file
+ *
+ * \param ctx           Entropy context
+ * \param path          Name of the file
+ *
+ * \return              0 if successful,
+ *                      MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR on file error, or
+ *                      MBEDTLS_ERR_ENTROPY_SOURCE_FAILED
+ */
+int mbedtls_entropy_write_seed_file(mbedtls_entropy_context *ctx, const char *path);
+
+/**
+ * \brief               Read and update a seed file. Seed is added to this
+ *                      instance. No more than MBEDTLS_ENTROPY_MAX_SEED_SIZE bytes are
+ *                      read from the seed file. The rest is ignored.
+ *
+ * \param ctx           Entropy context
+ * \param path          Name of the file
+ *
+ * \return              0 if successful,
+ *                      MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR on file error,
+ *                      MBEDTLS_ERR_ENTROPY_SOURCE_FAILED
+ */
+int mbedtls_entropy_update_seed_file(mbedtls_entropy_context *ctx, const char *path);
+#endif /* MBEDTLS_FS_IO */
+
+#if defined(MBEDTLS_SELF_TEST)
+/**
+ * \brief          Checkup routine
+ *
+ *                 This module self-test also calls the entropy self-test,
+ *                 mbedtls_entropy_source_self_test();
+ *
+ * \return         0 if successful, or 1 if a test failed
+ */
+int mbedtls_entropy_self_test(int verbose);
+
+#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT)
+/**
+ * \brief          Checkup routine
+ *
+ *                 Verifies the integrity of the hardware entropy source
+ *                 provided by the function 'mbedtls_hardware_poll()'.
+ *
+ *                 Note this is the only hardware entropy source that is known
+ *                 at link time, and other entropy sources configured
+ *                 dynamically at runtime by the function
+ *                 mbedtls_entropy_add_source() will not be tested.
+ *
+ * \return         0 if successful, or 1 if a test failed
+ */
+int mbedtls_entropy_source_self_test(int verbose);
+#endif /* MBEDTLS_ENTROPY_HARDWARE_ALT */
+#endif /* MBEDTLS_SELF_TEST */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* entropy.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/entropy_poll.h

@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_ENTROPY_POLL_H
+#define MBEDTLS_ENTROPY_POLL_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Default thresholds for built-in sources, in bytes
+ */
+#define MBEDTLS_ENTROPY_MIN_PLATFORM     32     /**< Minimum for platform source    */
+#define MBEDTLS_ENTROPY_MIN_HAVEGE       32     /**< Minimum for HAVEGE             */
+#define MBEDTLS_ENTROPY_MIN_HARDCLOCK     4     /**< Minimum for mbedtls_timing_hardclock()        */
+#if !defined(MBEDTLS_ENTROPY_MIN_HARDWARE)
+#define MBEDTLS_ENTROPY_MIN_HARDWARE     32     /**< Minimum for the hardware source */
+#endif
+
+/**
+ * \brief           Entropy poll callback that provides 0 entropy.
+ */
+#if defined(MBEDTLS_TEST_NULL_ENTROPY)
+int mbedtls_null_entropy_poll(void *data,
+                              unsigned char *output, size_t len, size_t *olen);
+#endif
+
+#if !defined(MBEDTLS_NO_PLATFORM_ENTROPY)
+/**
+ * \brief           Platform-specific entropy poll callback
+ */
+int mbedtls_platform_entropy_poll(void *data,
+        unsigned char *output, size_t len, size_t *olen);
+#endif
+
+#if defined(MBEDTLS_HAVEGE_C)
+/**
+ * \brief           HAVEGE based entropy poll callback
+ *
+ * Requires an HAVEGE state as its data pointer.
+ */
+int mbedtls_havege_poll(void *data,
+                                    unsigned char *output, size_t len, size_t *olen);
+#endif
+
+#if defined(MBEDTLS_TIMING_C)
+/**
+ * \brief           mbedtls_timing_hardclock-based entropy poll callback
+ */
+int mbedtls_hardclock_poll(void *data,
+                                       unsigned char *output, size_t len, size_t *olen);
+#endif
+
+#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT)
+/**
+ * \brief           Entropy poll callback for a hardware source
+ *
+ * \warning         This is not provided by mbed TLS!
+ *                  See \c MBEDTLS_ENTROPY_HARDWARE_ALT in config.h.
+ *
+ * \note            This must accept NULL as its first argument.
+ */
+int mbedtls_hardware_poll(void *data,
+                                      unsigned char *output, size_t len, size_t *olen);
+#endif
+
+#if defined(MBEDTLS_ENTROPY_NV_SEED)
+/**
+ * \brief           Entropy poll callback for a non-volatile seed file
+ *
+ * \note            This must accept NULL as its first argument.
+ */
+int mbedtls_nv_seed_poll(void *data,
+                                     unsigned char *output, size_t len, size_t *olen);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* entropy_poll.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/error.h

@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_ERROR_H
+#define MBEDTLS_ERROR_H
+
+#include <stddef.h>
+#include "config.h"
+
+/**
+ * Error code layout.
+ *
+ * Currently we try to keep all error codes within the negative space of 16
+ * bits signed integers to support all platforms (-0x0001 - -0x7FFF). In
+ * addition we'd like to give two layers of information on the error if
+ * possible.
+ *
+ * For that purpose the error codes are segmented in the following manner:
+ *
+ * 16 bit error code bit-segmentation
+ *
+ * 1 bit  - Unused (sign bit)
+ * 3 bits - High level module ID
+ * 5 bits - Module-dependent error code
+ * 7 bits - Low level module errors
+ *
+ * For historical reasons, low-level error codes are divided in even and odd,
+ * even codes were assigned first, and -1 is reserved for other errors.
+ *
+ * Low-level module errors (0x0002-0x007E, 0x0003-0x007F)
+ *
+ * Module   Nr  Codes assigned
+ * MPI       7  0x0002-0x0010
+ * GCM       2  0x0012-0x0014
+ * BLOWFISH  2  0x0016-0x0018
+ * THREADING 3  0x001A-0x001E
+ * AES       2  0x0020-0x0022
+ * CAMELLIA  2  0x0024-0x0026
+ * XTEA      1  0x0028-0x0028
+ * BASE64    2  0x002A-0x002C
+ * OID       1  0x002E-0x002E   0x000B-0x000B
+ * PADLOCK   1  0x0030-0x0030
+ * DES       1  0x0032-0x0032
+ * CTR_DBRG  4  0x0034-0x003A
+ * ENTROPY   3  0x003C-0x0040   0x003D-0x003F
+ * NET      11  0x0042-0x0052   0x0043-0x0045
+ * ASN1      7  0x0060-0x006C
+ * PBKDF2    1  0x007C-0x007C
+ * HMAC_DRBG 4  0x0003-0x0009
+ * CCM       2                  0x000D-0x000F
+ *
+ * High-level module nr (3 bits - 0x0...-0x7...)
+ * Name      ID  Nr of Errors
+ * PEM       1   9
+ * PKCS#12   1   4 (Started from top)
+ * X509      2   19
+ * PKCS5     2   4 (Started from top)
+ * DHM       3   9
+ * PK        3   14 (Started from top)
+ * RSA       4   9
+ * ECP       4   8 (Started from top)
+ * MD        5   4
+ * CIPHER    6   6
+ * SSL       6   17 (Started from top)
+ * SSL       7   31
+ *
+ * Module dependent error code (5 bits 0x.00.-0x.F8.)
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Translate a mbed TLS error code into a string representation,
+ *        Result is truncated if necessary and always includes a terminating
+ *        null byte.
+ *
+ * \param errnum    error code
+ * \param buffer    buffer to place representation in
+ * \param buflen    length of the buffer
+ */
+void mbedtls_strerror(int errnum, char *buffer, size_t buflen);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* error.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/md.h

@@ -0,0 +1,336 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_MD_H
+#define MBEDTLS_MD_H
+
+#include <stddef.h>
+
+#define MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE                -0x5080  /**< The selected feature is not available. */
+#define MBEDTLS_ERR_MD_BAD_INPUT_DATA                     -0x5100  /**< Bad input parameters to function. */
+#define MBEDTLS_ERR_MD_ALLOC_FAILED                       -0x5180  /**< Failed to allocate memory. */
+#define MBEDTLS_ERR_MD_FILE_IO_ERROR                      -0x5200  /**< Opening or reading of file failed. */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum {
+    MBEDTLS_MD_NONE = 0,
+    MBEDTLS_MD_MD2,
+    MBEDTLS_MD_MD4,
+    MBEDTLS_MD_MD5,
+    MBEDTLS_MD_SHA1,
+    MBEDTLS_MD_SHA224,
+    MBEDTLS_MD_SHA256,
+    MBEDTLS_MD_SHA384,
+    MBEDTLS_MD_SHA512,
+    MBEDTLS_MD_RIPEMD160,
+} mbedtls_md_type_t;
+
+#if defined(MBEDTLS_SHA512_C)
+#define MBEDTLS_MD_MAX_SIZE         64  /* longest known is SHA512 */
+#else
+#define MBEDTLS_MD_MAX_SIZE         32  /* longest known is SHA256 or less */
+#endif
+
+/**
+ * Opaque struct defined in md_internal.h
+ */
+typedef struct mbedtls_md_info_t mbedtls_md_info_t;
+
+/**
+ * Generic message digest context.
+ */
+typedef struct {
+    /** Information about the associated message digest */
+    const mbedtls_md_info_t *md_info;
+
+    /** Digest-specific context */
+    void *md_ctx;
+
+    /** HMAC part of the context */
+    void *hmac_ctx;
+} mbedtls_md_context_t;
+
+/**
+ * \brief Returns the list of digests supported by the generic digest module.
+ *
+ * \return          a statically allocated array of digests, the last entry
+ *                  is 0.
+ */
+const int *mbedtls_md_list(void);
+
+/**
+ * \brief           Returns the message digest information associated with the
+ *                  given digest name.
+ *
+ * \param md_name   Name of the digest to search for.
+ *
+ * \return          The message digest information associated with md_name or
+ *                  NULL if not found.
+ */
+const mbedtls_md_info_t *mbedtls_md_info_from_string(const char *md_name);
+
+/**
+ * \brief           Returns the message digest information associated with the
+ *                  given digest type.
+ *
+ * \param md_type   type of digest to search for.
+ *
+ * \return          The message digest information associated with md_type or
+ *                  NULL if not found.
+ */
+const mbedtls_md_info_t *mbedtls_md_info_from_type(mbedtls_md_type_t md_type);
+
+/**
+ * \brief           Initialize a md_context (as NONE)
+ *                  This should always be called first.
+ *                  Prepares the context for mbedtls_md_setup() or mbedtls_md_free().
+ */
+void mbedtls_md_init(mbedtls_md_context_t *ctx);
+
+/**
+ * \brief           Free and clear the internal structures of ctx.
+ *                  Can be called at any time after mbedtls_md_init().
+ *                  Mandatory once mbedtls_md_setup() has been called.
+ */
+void mbedtls_md_free(mbedtls_md_context_t *ctx);
+
+#if ! defined(MBEDTLS_DEPRECATED_REMOVED)
+#if defined(MBEDTLS_DEPRECATED_WARNING)
+#define MBEDTLS_DEPRECATED    __attribute__((deprecated))
+#else
+#define MBEDTLS_DEPRECATED
+#endif
+/**
+ * \brief           Select MD to use and allocate internal structures.
+ *                  Should be called after mbedtls_md_init() or mbedtls_md_free().
+ *                  Makes it necessary to call mbedtls_md_free() later.
+ *
+ * \deprecated      Superseded by mbedtls_md_setup() in 2.0.0
+ *
+ * \param ctx       Context to set up.
+ * \param md_info   Message digest to use.
+ *
+ * \returns         \c 0 on success,
+ *                  \c MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter failure,
+ *                  \c MBEDTLS_ERR_MD_ALLOC_FAILED memory allocation failure.
+ */
+int mbedtls_md_init_ctx(mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info) MBEDTLS_DEPRECATED;
+#undef MBEDTLS_DEPRECATED
+#endif /* MBEDTLS_DEPRECATED_REMOVED */
+
+/**
+ * \brief           Select MD to use and allocate internal structures.
+ *                  Should be called after mbedtls_md_init() or mbedtls_md_free().
+ *                  Makes it necessary to call mbedtls_md_free() later.
+ *
+ * \param ctx       Context to set up.
+ * \param md_info   Message digest to use.
+ * \param hmac      0 to save some memory if HMAC will not be used,
+ *                  non-zero is HMAC is going to be used with this context.
+ *
+ * \returns         \c 0 on success,
+ *                  \c MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter failure,
+ *                  \c MBEDTLS_ERR_MD_ALLOC_FAILED memory allocation failure.
+ */
+int mbedtls_md_setup(mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info, int hmac);
+
+/**
+ * \brief           Clone the state of an MD context
+ *
+ * \note            The two contexts must have been setup to the same type
+ *                  (cloning from SHA-256 to SHA-512 make no sense).
+ *
+ * \warning         Only clones the MD state, not the HMAC state! (for now)
+ *
+ * \param dst       The destination context
+ * \param src       The context to be cloned
+ *
+ * \return          \c 0 on success,
+ *                  \c MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter failure.
+ */
+int mbedtls_md_clone(mbedtls_md_context_t *dst,
+                                 const mbedtls_md_context_t *src);
+
+/**
+ * \brief           Returns the size of the message digest output.
+ *
+ * \param md_info   message digest info
+ *
+ * \return          size of the message digest output in bytes.
+ */
+unsigned char mbedtls_md_get_size(const mbedtls_md_info_t *md_info);
+
+/**
+ * \brief           Returns the type of the message digest output.
+ *
+ * \param md_info   message digest info
+ *
+ * \return          type of the message digest output.
+ */
+mbedtls_md_type_t mbedtls_md_get_type(const mbedtls_md_info_t *md_info);
+
+/**
+ * \brief           Returns the name of the message digest output.
+ *
+ * \param md_info   message digest info
+ *
+ * \return          name of the message digest output.
+ */
+const char *mbedtls_md_get_name(const mbedtls_md_info_t *md_info);
+
+/**
+ * \brief           Prepare the context to digest a new message.
+ *                  Generally called after mbedtls_md_setup() or mbedtls_md_finish().
+ *                  Followed by mbedtls_md_update().
+ *
+ * \param ctx       generic message digest context.
+ *
+ * \returns         0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter
+ *                  verification fails.
+ */
+int mbedtls_md_starts(mbedtls_md_context_t *ctx);
+
+/**
+ * \brief           Generic message digest process buffer
+ *                  Called between mbedtls_md_starts() and mbedtls_md_finish().
+ *                  May be called repeatedly.
+ *
+ * \param ctx       Generic message digest context
+ * \param input     buffer holding the  datal
+ * \param ilen      length of the input data
+ *
+ * \returns         0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter
+ *                  verification fails.
+ */
+int mbedtls_md_update(mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen);
+
+/**
+ * \brief           Generic message digest final digest
+ *                  Called after mbedtls_md_update().
+ *                  Usually followed by mbedtls_md_free() or mbedtls_md_starts().
+ *
+ * \param ctx       Generic message digest context
+ * \param output    Generic message digest checksum result
+ *
+ * \returns         0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter
+ *                  verification fails.
+ */
+int mbedtls_md_finish(mbedtls_md_context_t *ctx, unsigned char *output);
+
+/**
+ * \brief          Output = message_digest( input buffer )
+ *
+ * \param md_info  message digest info
+ * \param input    buffer holding the  data
+ * \param ilen     length of the input data
+ * \param output   Generic message digest checksum result
+ *
+ * \returns        0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter
+ *                 verification fails.
+ */
+int mbedtls_md(const mbedtls_md_info_t *md_info, const unsigned char *input, size_t ilen,
+                           unsigned char *output);
+
+#if defined(MBEDTLS_FS_IO)
+/**
+ * \brief          Output = message_digest( file contents )
+ *
+ * \param md_info  message digest info
+ * \param path     input file name
+ * \param output   generic message digest checksum result
+ *
+ * \return         0 if successful,
+ *                 MBEDTLS_ERR_MD_FILE_IO_ERROR if file input failed,
+ *                 MBEDTLS_ERR_MD_BAD_INPUT_DATA if md_info was NULL.
+ */
+int mbedtls_md_file(const mbedtls_md_info_t *md_info, const char *path,
+                                unsigned char *output);
+#endif /* MBEDTLS_FS_IO */
+
+/**
+ * \brief           Set HMAC key and prepare to authenticate a new message.
+ *                  Usually called after mbedtls_md_setup() or mbedtls_md_hmac_finish().
+ *
+ * \param ctx       HMAC context
+ * \param key       HMAC secret key
+ * \param keylen    length of the HMAC key in bytes
+ *
+ * \returns         0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter
+ *                  verification fails.
+ */
+int mbedtls_md_hmac_starts(mbedtls_md_context_t *ctx, const unsigned char *key,
+                                       size_t keylen);
+
+/**
+ * \brief           Generic HMAC process buffer.
+ *                  Called between mbedtls_md_hmac_starts() or mbedtls_md_hmac_reset()
+ *                  and mbedtls_md_hmac_finish().
+ *                  May be called repeatedly.
+ *
+ * \param ctx       HMAC context
+ * \param input     buffer holding the  data
+ * \param ilen      length of the input data
+ *
+ * \returns         0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter
+ *                  verification fails.
+ */
+int mbedtls_md_hmac_update(mbedtls_md_context_t *ctx, const unsigned char *input,
+                                       size_t ilen);
+
+/**
+ * \brief           Output HMAC.
+ *                  Called after mbedtls_md_hmac_update().
+ *                  Usually followed by mbedtls_md_hmac_reset(),
+ *                  mbedtls_md_hmac_starts(), or mbedtls_md_free().
+ *
+ * \param ctx       HMAC context
+ * \param output    Generic HMAC checksum result
+ *
+ * \returns         0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter
+ *                  verification fails.
+ */
+int mbedtls_md_hmac_finish(mbedtls_md_context_t *ctx, unsigned char *output);
+
+/**
+ * \brief           Prepare to authenticate a new message with the same key.
+ *                  Called after mbedtls_md_hmac_finish() and before
+ *                  mbedtls_md_hmac_update().
+ *
+ * \param ctx       HMAC context to be reset
+ *
+ * \returns         0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter
+ *                  verification fails.
+ */
+int mbedtls_md_hmac_reset(mbedtls_md_context_t *ctx);
+
+/**
+ * \brief          Output = Generic_HMAC( hmac key, input buffer )
+ *
+ * \param md_info  message digest info
+ * \param key      HMAC secret key
+ * \param keylen   length of the HMAC key in bytes
+ * \param input    buffer holding the  data
+ * \param ilen     length of the input data
+ * \param output   Generic HMAC-result
+ *
+ * \returns        0 on success, MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter
+ *                 verification fails.
+ */
+int mbedtls_md_hmac(const mbedtls_md_info_t *md_info, const unsigned char *key, size_t keylen,
+                                const unsigned char *input, size_t ilen,
+                                unsigned char *output);
+
+/* Internal use */
+int mbedtls_md_process(mbedtls_md_context_t *ctx, const unsigned char *data);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* MBEDTLS_MD_H */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/md5.h

@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_MD5_H
+#define MBEDTLS_MD5_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#include <stddef.h>
+#include <stdint.h>
+
+#if !defined(MBEDTLS_MD5_ALT)
+// Regular implementation
+//
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          MD5 context structure
+ */
+typedef struct {
+    uint32_t total[2];          /*!< number of bytes processed  */
+    uint32_t state[4];          /*!< intermediate digest state  */
+    unsigned char buffer[64];   /*!< data block being processed */
+}
+mbedtls_md5_context;
+
+/**
+ * \brief          Initialize MD5 context
+ *
+ * \param ctx      MD5 context to be initialized
+ */
+void mbedtls_md5_init(mbedtls_md5_context *ctx);
+
+/**
+ * \brief          Clear MD5 context
+ *
+ * \param ctx      MD5 context to be cleared
+ */
+void mbedtls_md5_free(mbedtls_md5_context *ctx);
+
+/**
+ * \brief          Clone (the state of) an MD5 context
+ *
+ * \param dst      The destination context
+ * \param src      The context to be cloned
+ */
+void mbedtls_md5_clone(mbedtls_md5_context *dst,
+                                   const mbedtls_md5_context *src);
+
+/**
+ * \brief          MD5 context setup
+ *
+ * \param ctx      context to be initialized
+ */
+void mbedtls_md5_starts(mbedtls_md5_context *ctx);
+
+/**
+ * \brief          MD5 process buffer
+ *
+ * \param ctx      MD5 context
+ * \param input    buffer holding the  data
+ * \param ilen     length of the input data
+ */
+void mbedtls_md5_update(mbedtls_md5_context *ctx, const unsigned char *input, size_t ilen);
+
+/**
+ * \brief          MD5 final digest
+ *
+ * \param ctx      MD5 context
+ * \param output   MD5 checksum result
+ */
+void mbedtls_md5_finish(mbedtls_md5_context *ctx, unsigned char output[16]);
+
+/* Internal use */
+void mbedtls_md5_process(mbedtls_md5_context *ctx, const unsigned char data[64]);
+
+#ifdef __cplusplus
+}
+#endif
+
+#else  /* MBEDTLS_MD5_ALT */
+#include "md5_alt.h"
+#endif /* MBEDTLS_MD5_ALT */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          Output = MD5( input buffer )
+ *
+ * \param input    buffer holding the  data
+ * \param ilen     length of the input data
+ * \param output   MD5 checksum result
+ */
+void mbedtls_md5(const unsigned char *input, size_t ilen, unsigned char output[16]);
+
+/**
+ * \brief          Checkup routine
+ *
+ * \return         0 if successful, or 1 if the test failed
+ */
+int mbedtls_md5_self_test(int verbose);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* mbedtls_md5.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/md_internal.h

@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_MD_WRAP_H
+#define MBEDTLS_MD_WRAP_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+#include "config.h"
+#else
+#include MBEDTLS_CONFIG_FILE
+#endif
+
+#include "md.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Message digest information.
+ * Allows message digest functions to be called in a generic way.
+ */
+struct mbedtls_md_info_t
+{
+    /** Digest identifier */
+    mbedtls_md_type_t type;
+
+    /** Name of the message digest */
+    const char * name;
+
+    /** Output length of the digest function in bytes */
+    int size;
+
+    /** Block length of the digest function in bytes */
+    int block_size;
+
+    /** Digest initialisation function */
+    void (*starts_func)( void *ctx );
+
+    /** Digest update function */
+    void (*update_func)( void *ctx, const unsigned char *input, size_t ilen );
+
+    /** Digest finalisation function */
+    void (*finish_func)( void *ctx, unsigned char *output );
+
+    /** Generic digest function */
+    void (*digest_func)( const unsigned char *input, size_t ilen,
+                         unsigned char *output );
+
+    /** Allocate a new context */
+    void * (*ctx_alloc_func)( void );
+
+    /** Free the given context */
+    void (*ctx_free_func)( void *ctx );
+
+    /** Clone state from a context */
+    void (*clone_func)( void *dst, const void *src );
+
+    /** Internal use only */
+    void (*process_func)( void *ctx, const unsigned char *input );
+};
+
+#if defined(MBEDTLS_MD2_C)
+extern const mbedtls_md_info_t mbedtls_md2_info;
+#endif
+#if defined(MBEDTLS_MD4_C)
+extern const mbedtls_md_info_t mbedtls_md4_info;
+#endif
+#if defined(MBEDTLS_MD5_C)
+extern const mbedtls_md_info_t mbedtls_md5_info;
+#endif
+#if defined(MBEDTLS_RIPEMD160_C)
+extern const mbedtls_md_info_t mbedtls_ripemd160_info;
+#endif
+#if defined(MBEDTLS_SHA1_C)
+extern const mbedtls_md_info_t mbedtls_sha1_info;
+#endif
+#if defined(MBEDTLS_SHA256_C)
+extern const mbedtls_md_info_t mbedtls_sha224_info;
+extern const mbedtls_md_info_t mbedtls_sha256_info;
+#endif
+#if defined(MBEDTLS_SHA512_C)
+extern const mbedtls_md_info_t mbedtls_sha384_info;
+extern const mbedtls_md_info_t mbedtls_sha512_info;
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* MBEDTLS_MD_WRAP_H */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/net.h

@@ -0,0 +1,13 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
+#include "mbedtls/net_sockets.h"
+#if defined(MBEDTLS_DEPRECATED_WARNING)
+#warning "Deprecated header file: Superseded by mbedtls/net_sockets.h"
+#endif /* MBEDTLS_DEPRECATED_WARNING */
+#endif /* !MBEDTLS_DEPRECATED_REMOVED */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/net_sockets.h

@@ -0,0 +1,208 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_NET_SOCKETS_H
+#define MBEDTLS_NET_SOCKETS_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#include "ssl.h"
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define MBEDTLS_ERR_NET_SOCKET_FAILED                     -0x0042  /**< Failed to open a socket. */
+#define MBEDTLS_ERR_NET_CONNECT_FAILED                    -0x0044  /**< The connection to the given server / port failed. */
+#define MBEDTLS_ERR_NET_BIND_FAILED                       -0x0046  /**< Binding of the socket failed. */
+#define MBEDTLS_ERR_NET_LISTEN_FAILED                     -0x0048  /**< Could not listen on the socket. */
+#define MBEDTLS_ERR_NET_ACCEPT_FAILED                     -0x004A  /**< Could not accept the incoming connection. */
+#define MBEDTLS_ERR_NET_RECV_FAILED                       -0x004C  /**< Reading information from the socket failed. */
+#define MBEDTLS_ERR_NET_SEND_FAILED                       -0x004E  /**< Sending information through the socket failed. */
+#define MBEDTLS_ERR_NET_CONN_RESET                        -0x0050  /**< Connection was reset by peer. */
+#define MBEDTLS_ERR_NET_UNKNOWN_HOST                      -0x0052  /**< Failed to get an IP address for the given hostname. */
+#define MBEDTLS_ERR_NET_BUFFER_TOO_SMALL                  -0x0043  /**< Buffer is too small to hold the data. */
+#define MBEDTLS_ERR_NET_INVALID_CONTEXT                   -0x0045  /**< The context is invalid, eg because it was free()ed. */
+
+#define MBEDTLS_NET_LISTEN_BACKLOG         10 /**< The backlog that listen() should use. */
+
+#define MBEDTLS_NET_PROTO_TCP 0 /**< The TCP transport protocol */
+#define MBEDTLS_NET_PROTO_UDP 1 /**< The UDP transport protocol */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Wrapper type for sockets.
+ *
+ * Currently backed by just a file descriptor, but might be more in the future
+ * (eg two file descriptors for combined IPv4 + IPv6 support, or additional
+ * structures for hand-made UDP demultiplexing).
+ */
+typedef struct {
+    int fd;             /**< The underlying file descriptor                 */
+}
+mbedtls_net_context;
+
+/**
+ * \brief          Initialize a context
+ *                 Just makes the context ready to be used or freed safely.
+ *
+ * \param ctx      Context to initialize
+ */
+void mbedtls_net_init(mbedtls_net_context *ctx);
+
+/**
+ * \brief          Initiate a connection with host:port in the given protocol
+ *
+ * \param ctx      Socket to use
+ * \param host     Host to connect to
+ * \param port     Port to connect to
+ * \param proto    Protocol: MBEDTLS_NET_PROTO_TCP or MBEDTLS_NET_PROTO_UDP
+ *
+ * \return         0 if successful, or one of:
+ *                      MBEDTLS_ERR_NET_SOCKET_FAILED,
+ *                      MBEDTLS_ERR_NET_UNKNOWN_HOST,
+ *                      MBEDTLS_ERR_NET_CONNECT_FAILED
+ *
+ * \note           Sets the socket in connected mode even with UDP.
+ */
+int mbedtls_net_connect(mbedtls_net_context *ctx, const char *host, const char *port, int proto);
+
+/**
+ * \brief          Create a receiving socket on bind_ip:port in the chosen
+ *                 protocol. If bind_ip == NULL, all interfaces are bound.
+ *
+ * \param ctx      Socket to use
+ * \param bind_ip  IP to bind to, can be NULL
+ * \param port     Port number to use
+ * \param proto    Protocol: MBEDTLS_NET_PROTO_TCP or MBEDTLS_NET_PROTO_UDP
+ *
+ * \return         0 if successful, or one of:
+ *                      MBEDTLS_ERR_NET_SOCKET_FAILED,
+ *                      MBEDTLS_ERR_NET_BIND_FAILED,
+ *                      MBEDTLS_ERR_NET_LISTEN_FAILED
+ *
+ * \note           Regardless of the protocol, opens the sockets and binds it.
+ *                 In addition, make the socket listening if protocol is TCP.
+ */
+int mbedtls_net_bind(mbedtls_net_context *ctx, const char *bind_ip, const char *port, int proto);
+
+/**
+ * \brief           Accept a connection from a remote client
+ *
+ * \param bind_ctx  Relevant socket
+ * \param client_ctx Will contain the connected client socket
+ * \param client_ip Will contain the client IP address
+ * \param buf_size  Size of the client_ip buffer
+ * \param ip_len    Will receive the size of the client IP written
+ *
+ * \return          0 if successful, or
+ *                  MBEDTLS_ERR_NET_ACCEPT_FAILED, or
+ *                  MBEDTLS_ERR_NET_BUFFER_TOO_SMALL if buf_size is too small,
+ *                  MBEDTLS_ERR_SSL_WANT_READ if bind_fd was set to
+ *                  non-blocking and accept() would block.
+ */
+int mbedtls_net_accept(mbedtls_net_context *bind_ctx,
+                                   mbedtls_net_context *client_ctx,
+                                   void *client_ip, size_t buf_size, size_t *ip_len);
+
+/**
+ * \brief          Set the socket blocking
+ *
+ * \param ctx      Socket to set
+ *
+ * \return         0 if successful, or a non-zero error code
+ */
+int mbedtls_net_set_block(mbedtls_net_context *ctx);
+
+/**
+ * \brief          Set the socket non-blocking
+ *
+ * \param ctx      Socket to set
+ *
+ * \return         0 if successful, or a non-zero error code
+ */
+int mbedtls_net_set_nonblock(mbedtls_net_context *ctx);
+
+/**
+ * \brief          Portable usleep helper
+ *
+ * \param usec     Amount of microseconds to sleep
+ *
+ * \note           Real amount of time slept will not be less than
+ *                 select()'s timeout granularity (typically, 10ms).
+ */
+void mbedtls_net_usleep(unsigned long usec);
+
+/**
+ * \brief          Read at most 'len' characters. If no error occurs,
+ *                 the actual amount read is returned.
+ *
+ * \param ctx      Socket
+ * \param buf      The buffer to write to
+ * \param len      Maximum length of the buffer
+ *
+ * \return         the number of bytes received,
+ *                 or a non-zero error code; with a non-blocking socket,
+ *                 MBEDTLS_ERR_SSL_WANT_READ indicates read() would block.
+ */
+int mbedtls_net_recv(void *ctx, unsigned char *buf, size_t len);
+
+/**
+ * \brief          Write at most 'len' characters. If no error occurs,
+ *                 the actual amount read is returned.
+ *
+ * \param ctx      Socket
+ * \param buf      The buffer to read from
+ * \param len      The length of the buffer
+ *
+ * \return         the number of bytes sent,
+ *                 or a non-zero error code; with a non-blocking socket,
+ *                 MBEDTLS_ERR_SSL_WANT_WRITE indicates write() would block.
+ */
+int mbedtls_net_send(void *ctx, const unsigned char *buf, size_t len);
+
+/**
+ * \brief          Read at most 'len' characters, blocking for at most
+ *                 'timeout' seconds. If no error occurs, the actual amount
+ *                 read is returned.
+ *
+ * \param ctx      Socket
+ * \param buf      The buffer to write to
+ * \param len      Maximum length of the buffer
+ * \param timeout  Maximum number of milliseconds to wait for data
+ *                 0 means no timeout (wait forever)
+ *
+ * \return         the number of bytes received,
+ *                 or a non-zero error code:
+ *                 MBEDTLS_ERR_SSL_TIMEOUT if the operation timed out,
+ *                 MBEDTLS_ERR_SSL_WANT_READ if interrupted by a signal.
+ *
+ * \note           This function will block (until data becomes available or
+ *                 timeout is reached) even if the socket is set to
+ *                 non-blocking. Handling timeouts with non-blocking reads
+ *                 requires a different strategy.
+ */
+int mbedtls_net_recv_timeout(void *ctx, unsigned char *buf, size_t len,
+        uint32_t timeout);
+
+/**
+ * \brief          Gracefully shutdown the connection and free associated data
+ *
+ * \param ctx      The context to free
+ */
+void mbedtls_net_free(mbedtls_net_context *ctx);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* net_sockets.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/oid.h

@@ -0,0 +1,554 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_OID_H
+#define MBEDTLS_OID_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#include "asn1.h"
+#include "pk.h"
+
+#include <stddef.h>
+
+#if defined(MBEDTLS_CIPHER_C)
+    #include "cipher.h"
+#endif
+
+#if defined(MBEDTLS_MD_C)
+    #include "md.h"
+#endif
+
+#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C)
+    #include "x509.h"
+#endif
+
+#define MBEDTLS_ERR_OID_NOT_FOUND                         -0x002E  /**< OID is not found. */
+#define MBEDTLS_ERR_OID_BUF_TOO_SMALL                     -0x000B  /**< output buffer is too small */
+
+/*
+ * Top level OID tuples
+ */
+#define MBEDTLS_OID_ISO_MEMBER_BODIES           "\x2a"          /* {iso(1) member-body(2)} */
+#define MBEDTLS_OID_ISO_IDENTIFIED_ORG          "\x2b"          /* {iso(1) identified-organization(3)} */
+#define MBEDTLS_OID_ISO_CCITT_DS                "\x55"          /* {joint-iso-ccitt(2) ds(5)} */
+#define MBEDTLS_OID_ISO_ITU_COUNTRY             "\x60"          /* {joint-iso-itu-t(2) country(16)} */
+
+/*
+ * ISO Member bodies OID parts
+ */
+#define MBEDTLS_OID_COUNTRY_US                  "\x86\x48"      /* {us(840)} */
+#define MBEDTLS_OID_ORG_RSA_DATA_SECURITY       "\x86\xf7\x0d"  /* {rsadsi(113549)} */
+#define MBEDTLS_OID_RSA_COMPANY                 MBEDTLS_OID_ISO_MEMBER_BODIES MBEDTLS_OID_COUNTRY_US \
+    MBEDTLS_OID_ORG_RSA_DATA_SECURITY /* {iso(1) member-body(2) us(840) rsadsi(113549)} */
+#define MBEDTLS_OID_ORG_ANSI_X9_62              "\xce\x3d" /* ansi-X9-62(10045) */
+#define MBEDTLS_OID_ANSI_X9_62                  MBEDTLS_OID_ISO_MEMBER_BODIES MBEDTLS_OID_COUNTRY_US \
+    MBEDTLS_OID_ORG_ANSI_X9_62
+
+/*
+ * ISO Identified organization OID parts
+ */
+#define MBEDTLS_OID_ORG_DOD                     "\x06"          /* {dod(6)} */
+#define MBEDTLS_OID_ORG_OIW                     "\x0e"
+#define MBEDTLS_OID_OIW_SECSIG                  MBEDTLS_OID_ORG_OIW "\x03"
+#define MBEDTLS_OID_OIW_SECSIG_ALG              MBEDTLS_OID_OIW_SECSIG "\x02"
+#define MBEDTLS_OID_OIW_SECSIG_SHA1             MBEDTLS_OID_OIW_SECSIG_ALG "\x1a"
+#define MBEDTLS_OID_ORG_CERTICOM                "\x81\x04"  /* certicom(132) */
+#define MBEDTLS_OID_CERTICOM                    MBEDTLS_OID_ISO_IDENTIFIED_ORG MBEDTLS_OID_ORG_CERTICOM
+#define MBEDTLS_OID_ORG_TELETRUST               "\x24" /* teletrust(36) */
+#define MBEDTLS_OID_TELETRUST                   MBEDTLS_OID_ISO_IDENTIFIED_ORG MBEDTLS_OID_ORG_TELETRUST
+
+/*
+ * ISO ITU OID parts
+ */
+#define MBEDTLS_OID_ORGANIZATION                "\x01"          /* {organization(1)} */
+#define MBEDTLS_OID_ISO_ITU_US_ORG              MBEDTLS_OID_ISO_ITU_COUNTRY MBEDTLS_OID_COUNTRY_US MBEDTLS_OID_ORGANIZATION /* {joint-iso-itu-t(2) country(16) us(840) organization(1)} */
+
+#define MBEDTLS_OID_ORG_GOV                     "\x65"          /* {gov(101)} */
+#define MBEDTLS_OID_GOV                         MBEDTLS_OID_ISO_ITU_US_ORG MBEDTLS_OID_ORG_GOV /* {joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101)} */
+
+#define MBEDTLS_OID_ORG_NETSCAPE                "\x86\xF8\x42"  /* {netscape(113730)} */
+#define MBEDTLS_OID_NETSCAPE                    MBEDTLS_OID_ISO_ITU_US_ORG MBEDTLS_OID_ORG_NETSCAPE /* Netscape OID {joint-iso-itu-t(2) country(16) us(840) organization(1) netscape(113730)} */
+
+/* ISO arc for standard certificate and CRL extensions */
+#define MBEDTLS_OID_ID_CE                       MBEDTLS_OID_ISO_CCITT_DS "\x1D" /**< id-ce OBJECT IDENTIFIER  ::=  {joint-iso-ccitt(2) ds(5) 29} */
+
+/**
+ * Private Internet Extensions
+ * { iso(1) identified-organization(3) dod(6) internet(1)
+ *                      security(5) mechanisms(5) pkix(7) }
+ */
+#define MBEDTLS_OID_PKIX                        MBEDTLS_OID_ISO_IDENTIFIED_ORG MBEDTLS_OID_ORG_DOD "\x01\x05\x05\x07"
+
+/*
+ * Arc for standard naming attributes
+ */
+#define MBEDTLS_OID_AT                          MBEDTLS_OID_ISO_CCITT_DS "\x04" /**< id-at OBJECT IDENTIFIER ::= {joint-iso-ccitt(2) ds(5) 4} */
+#define MBEDTLS_OID_AT_CN                       MBEDTLS_OID_AT "\x03" /**< id-at-commonName AttributeType:= {id-at 3} */
+#define MBEDTLS_OID_AT_SUR_NAME                 MBEDTLS_OID_AT "\x04" /**< id-at-surName AttributeType:= {id-at 4} */
+#define MBEDTLS_OID_AT_SERIAL_NUMBER            MBEDTLS_OID_AT "\x05" /**< id-at-serialNumber AttributeType:= {id-at 5} */
+#define MBEDTLS_OID_AT_COUNTRY                  MBEDTLS_OID_AT "\x06" /**< id-at-countryName AttributeType:= {id-at 6} */
+#define MBEDTLS_OID_AT_LOCALITY                 MBEDTLS_OID_AT "\x07" /**< id-at-locality AttributeType:= {id-at 7} */
+#define MBEDTLS_OID_AT_STATE                    MBEDTLS_OID_AT "\x08" /**< id-at-state AttributeType:= {id-at 8} */
+#define MBEDTLS_OID_AT_ORGANIZATION             MBEDTLS_OID_AT "\x0A" /**< id-at-organizationName AttributeType:= {id-at 10} */
+#define MBEDTLS_OID_AT_ORG_UNIT                 MBEDTLS_OID_AT "\x0B" /**< id-at-organizationalUnitName AttributeType:= {id-at 11} */
+#define MBEDTLS_OID_AT_TITLE                    MBEDTLS_OID_AT "\x0C" /**< id-at-title AttributeType:= {id-at 12} */
+#define MBEDTLS_OID_AT_POSTAL_ADDRESS           MBEDTLS_OID_AT "\x10" /**< id-at-postalAddress AttributeType:= {id-at 16} */
+#define MBEDTLS_OID_AT_POSTAL_CODE              MBEDTLS_OID_AT "\x11" /**< id-at-postalCode AttributeType:= {id-at 17} */
+#define MBEDTLS_OID_AT_GIVEN_NAME               MBEDTLS_OID_AT "\x2A" /**< id-at-givenName AttributeType:= {id-at 42} */
+#define MBEDTLS_OID_AT_INITIALS                 MBEDTLS_OID_AT "\x2B" /**< id-at-initials AttributeType:= {id-at 43} */
+#define MBEDTLS_OID_AT_GENERATION_QUALIFIER     MBEDTLS_OID_AT "\x2C" /**< id-at-generationQualifier AttributeType:= {id-at 44} */
+#define MBEDTLS_OID_AT_UNIQUE_IDENTIFIER        MBEDTLS_OID_AT "\x2D" /**< id-at-uniqueIdentifier AttributType:= {id-at 45} */
+#define MBEDTLS_OID_AT_DN_QUALIFIER             MBEDTLS_OID_AT "\x2E" /**< id-at-dnQualifier AttributeType:= {id-at 46} */
+#define MBEDTLS_OID_AT_PSEUDONYM                MBEDTLS_OID_AT "\x41" /**< id-at-pseudonym AttributeType:= {id-at 65} */
+
+#define MBEDTLS_OID_DOMAIN_COMPONENT            "\x09\x92\x26\x89\x93\xF2\x2C\x64\x01\x19" /** id-domainComponent AttributeType:= {itu-t(0) data(9) pss(2342) ucl(19200300) pilot(100) pilotAttributeType(1) domainComponent(25)} */
+
+/*
+ * OIDs for standard certificate extensions
+ */
+#define MBEDTLS_OID_AUTHORITY_KEY_IDENTIFIER    MBEDTLS_OID_ID_CE "\x23" /**< id-ce-authorityKeyIdentifier OBJECT IDENTIFIER ::=  { id-ce 35 } */
+#define MBEDTLS_OID_SUBJECT_KEY_IDENTIFIER      MBEDTLS_OID_ID_CE "\x0E" /**< id-ce-subjectKeyIdentifier OBJECT IDENTIFIER ::=  { id-ce 14 } */
+#define MBEDTLS_OID_KEY_USAGE                   MBEDTLS_OID_ID_CE "\x0F" /**< id-ce-keyUsage OBJECT IDENTIFIER ::=  { id-ce 15 } */
+#define MBEDTLS_OID_CERTIFICATE_POLICIES        MBEDTLS_OID_ID_CE "\x20" /**< id-ce-certificatePolicies OBJECT IDENTIFIER ::=  { id-ce 32 } */
+#define MBEDTLS_OID_POLICY_MAPPINGS             MBEDTLS_OID_ID_CE "\x21" /**< id-ce-policyMappings OBJECT IDENTIFIER ::=  { id-ce 33 } */
+#define MBEDTLS_OID_SUBJECT_ALT_NAME            MBEDTLS_OID_ID_CE "\x11" /**< id-ce-subjectAltName OBJECT IDENTIFIER ::=  { id-ce 17 } */
+#define MBEDTLS_OID_ISSUER_ALT_NAME             MBEDTLS_OID_ID_CE "\x12" /**< id-ce-issuerAltName OBJECT IDENTIFIER ::=  { id-ce 18 } */
+#define MBEDTLS_OID_SUBJECT_DIRECTORY_ATTRS     MBEDTLS_OID_ID_CE "\x09" /**< id-ce-subjectDirectoryAttributes OBJECT IDENTIFIER ::=  { id-ce 9 } */
+#define MBEDTLS_OID_BASIC_CONSTRAINTS           MBEDTLS_OID_ID_CE "\x13" /**< id-ce-basicConstraints OBJECT IDENTIFIER ::=  { id-ce 19 } */
+#define MBEDTLS_OID_NAME_CONSTRAINTS            MBEDTLS_OID_ID_CE "\x1E" /**< id-ce-nameConstraints OBJECT IDENTIFIER ::=  { id-ce 30 } */
+#define MBEDTLS_OID_POLICY_CONSTRAINTS          MBEDTLS_OID_ID_CE "\x24" /**< id-ce-policyConstraints OBJECT IDENTIFIER ::=  { id-ce 36 } */
+#define MBEDTLS_OID_EXTENDED_KEY_USAGE          MBEDTLS_OID_ID_CE "\x25" /**< id-ce-extKeyUsage OBJECT IDENTIFIER ::= { id-ce 37 } */
+#define MBEDTLS_OID_CRL_DISTRIBUTION_POINTS     MBEDTLS_OID_ID_CE "\x1F" /**< id-ce-cRLDistributionPoints OBJECT IDENTIFIER ::=  { id-ce 31 } */
+#define MBEDTLS_OID_INIHIBIT_ANYPOLICY          MBEDTLS_OID_ID_CE "\x36" /**< id-ce-inhibitAnyPolicy OBJECT IDENTIFIER ::=  { id-ce 54 } */
+#define MBEDTLS_OID_FRESHEST_CRL                MBEDTLS_OID_ID_CE "\x2E" /**< id-ce-freshestCRL OBJECT IDENTIFIER ::=  { id-ce 46 } */
+
+/*
+ * Netscape certificate extensions
+ */
+#define MBEDTLS_OID_NS_CERT                 MBEDTLS_OID_NETSCAPE "\x01"
+#define MBEDTLS_OID_NS_CERT_TYPE            MBEDTLS_OID_NS_CERT  "\x01"
+#define MBEDTLS_OID_NS_BASE_URL             MBEDTLS_OID_NS_CERT  "\x02"
+#define MBEDTLS_OID_NS_REVOCATION_URL       MBEDTLS_OID_NS_CERT  "\x03"
+#define MBEDTLS_OID_NS_CA_REVOCATION_URL    MBEDTLS_OID_NS_CERT  "\x04"
+#define MBEDTLS_OID_NS_RENEWAL_URL          MBEDTLS_OID_NS_CERT  "\x07"
+#define MBEDTLS_OID_NS_CA_POLICY_URL        MBEDTLS_OID_NS_CERT  "\x08"
+#define MBEDTLS_OID_NS_SSL_SERVER_NAME      MBEDTLS_OID_NS_CERT  "\x0C"
+#define MBEDTLS_OID_NS_COMMENT              MBEDTLS_OID_NS_CERT  "\x0D"
+#define MBEDTLS_OID_NS_DATA_TYPE            MBEDTLS_OID_NETSCAPE "\x02"
+#define MBEDTLS_OID_NS_CERT_SEQUENCE        MBEDTLS_OID_NS_DATA_TYPE "\x05"
+
+/*
+ * OIDs for CRL extensions
+ */
+#define MBEDTLS_OID_PRIVATE_KEY_USAGE_PERIOD    MBEDTLS_OID_ID_CE "\x10"
+#define MBEDTLS_OID_CRL_NUMBER                  MBEDTLS_OID_ID_CE "\x14" /**< id-ce-cRLNumber OBJECT IDENTIFIER ::= { id-ce 20 } */
+
+/*
+ * X.509 v3 Extended key usage OIDs
+ */
+#define MBEDTLS_OID_ANY_EXTENDED_KEY_USAGE      MBEDTLS_OID_EXTENDED_KEY_USAGE "\x00" /**< anyExtendedKeyUsage OBJECT IDENTIFIER ::= { id-ce-extKeyUsage 0 } */
+
+#define MBEDTLS_OID_KP                          MBEDTLS_OID_PKIX "\x03" /**< id-kp OBJECT IDENTIFIER ::= { id-pkix 3 } */
+#define MBEDTLS_OID_SERVER_AUTH                 MBEDTLS_OID_KP "\x01" /**< id-kp-serverAuth OBJECT IDENTIFIER ::= { id-kp 1 } */
+#define MBEDTLS_OID_CLIENT_AUTH                 MBEDTLS_OID_KP "\x02" /**< id-kp-clientAuth OBJECT IDENTIFIER ::= { id-kp 2 } */
+#define MBEDTLS_OID_CODE_SIGNING                MBEDTLS_OID_KP "\x03" /**< id-kp-codeSigning OBJECT IDENTIFIER ::= { id-kp 3 } */
+#define MBEDTLS_OID_EMAIL_PROTECTION            MBEDTLS_OID_KP "\x04" /**< id-kp-emailProtection OBJECT IDENTIFIER ::= { id-kp 4 } */
+#define MBEDTLS_OID_TIME_STAMPING               MBEDTLS_OID_KP "\x08" /**< id-kp-timeStamping OBJECT IDENTIFIER ::= { id-kp 8 } */
+#define MBEDTLS_OID_OCSP_SIGNING                MBEDTLS_OID_KP "\x09" /**< id-kp-OCSPSigning OBJECT IDENTIFIER ::= { id-kp 9 } */
+
+/*
+ * PKCS definition OIDs
+ */
+
+#define MBEDTLS_OID_PKCS                MBEDTLS_OID_RSA_COMPANY "\x01" /**< pkcs OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) 1 } */
+#define MBEDTLS_OID_PKCS1               MBEDTLS_OID_PKCS "\x01" /**< pkcs-1 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) 1 } */
+#define MBEDTLS_OID_PKCS5               MBEDTLS_OID_PKCS "\x05" /**< pkcs-5 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) 5 } */
+#define MBEDTLS_OID_PKCS9               MBEDTLS_OID_PKCS "\x09" /**< pkcs-9 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) 9 } */
+#define MBEDTLS_OID_PKCS12              MBEDTLS_OID_PKCS "\x0c" /**< pkcs-12 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) 12 } */
+
+/*
+ * PKCS#1 OIDs
+ */
+#define MBEDTLS_OID_PKCS1_RSA           MBEDTLS_OID_PKCS1 "\x01" /**< rsaEncryption OBJECT IDENTIFIER ::= { pkcs-1 1 } */
+#define MBEDTLS_OID_PKCS1_MD2           MBEDTLS_OID_PKCS1 "\x02" /**< md2WithRSAEncryption ::= { pkcs-1 2 } */
+#define MBEDTLS_OID_PKCS1_MD4           MBEDTLS_OID_PKCS1 "\x03" /**< md4WithRSAEncryption ::= { pkcs-1 3 } */
+#define MBEDTLS_OID_PKCS1_MD5           MBEDTLS_OID_PKCS1 "\x04" /**< md5WithRSAEncryption ::= { pkcs-1 4 } */
+#define MBEDTLS_OID_PKCS1_SHA1          MBEDTLS_OID_PKCS1 "\x05" /**< sha1WithRSAEncryption ::= { pkcs-1 5 } */
+#define MBEDTLS_OID_PKCS1_SHA224        MBEDTLS_OID_PKCS1 "\x0e" /**< sha224WithRSAEncryption ::= { pkcs-1 14 } */
+#define MBEDTLS_OID_PKCS1_SHA256        MBEDTLS_OID_PKCS1 "\x0b" /**< sha256WithRSAEncryption ::= { pkcs-1 11 } */
+#define MBEDTLS_OID_PKCS1_SHA384        MBEDTLS_OID_PKCS1 "\x0c" /**< sha384WithRSAEncryption ::= { pkcs-1 12 } */
+#define MBEDTLS_OID_PKCS1_SHA512        MBEDTLS_OID_PKCS1 "\x0d" /**< sha512WithRSAEncryption ::= { pkcs-1 13 } */
+
+#define MBEDTLS_OID_RSA_SHA_OBS         "\x2B\x0E\x03\x02\x1D"
+
+#define MBEDTLS_OID_PKCS9_EMAIL         MBEDTLS_OID_PKCS9 "\x01" /**< emailAddress AttributeType ::= { pkcs-9 1 } */
+
+/* RFC 4055 */
+#define MBEDTLS_OID_RSASSA_PSS          MBEDTLS_OID_PKCS1 "\x0a" /**< id-RSASSA-PSS ::= { pkcs-1 10 } */
+#define MBEDTLS_OID_MGF1                MBEDTLS_OID_PKCS1 "\x08" /**< id-mgf1 ::= { pkcs-1 8 } */
+
+/*
+ * Digest algorithms
+ */
+#define MBEDTLS_OID_DIGEST_ALG_MD2              MBEDTLS_OID_RSA_COMPANY "\x02\x02" /**< id-mbedtls_md2 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) digestAlgorithm(2) 2 } */
+#define MBEDTLS_OID_DIGEST_ALG_MD4              MBEDTLS_OID_RSA_COMPANY "\x02\x04" /**< id-mbedtls_md4 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) digestAlgorithm(2) 4 } */
+#define MBEDTLS_OID_DIGEST_ALG_MD5              MBEDTLS_OID_RSA_COMPANY "\x02\x05" /**< id-mbedtls_md5 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) digestAlgorithm(2) 5 } */
+#define MBEDTLS_OID_DIGEST_ALG_SHA1             MBEDTLS_OID_ISO_IDENTIFIED_ORG MBEDTLS_OID_OIW_SECSIG_SHA1 /**< id-mbedtls_sha1 OBJECT IDENTIFIER ::= { iso(1) identified-organization(3) oiw(14) secsig(3) algorithms(2) 26 } */
+#define MBEDTLS_OID_DIGEST_ALG_SHA224           MBEDTLS_OID_GOV "\x03\x04\x02\x04" /**< id-sha224 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistalgorithm(4) hashalgs(2) 4 } */
+#define MBEDTLS_OID_DIGEST_ALG_SHA256           MBEDTLS_OID_GOV "\x03\x04\x02\x01" /**< id-mbedtls_sha256 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistalgorithm(4) hashalgs(2) 1 } */
+
+#define MBEDTLS_OID_DIGEST_ALG_SHA384           MBEDTLS_OID_GOV "\x03\x04\x02\x02" /**< id-sha384 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistalgorithm(4) hashalgs(2) 2 } */
+
+#define MBEDTLS_OID_DIGEST_ALG_SHA512           MBEDTLS_OID_GOV "\x03\x04\x02\x03" /**< id-mbedtls_sha512 OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) nistalgorithm(4) hashalgs(2) 3 } */
+
+#define MBEDTLS_OID_HMAC_SHA1                   MBEDTLS_OID_RSA_COMPANY "\x02\x07" /**< id-hmacWithSHA1 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) rsadsi(113549) digestAlgorithm(2) 7 } */
+
+/*
+ * Encryption algorithms
+ */
+#define MBEDTLS_OID_DES_CBC                     MBEDTLS_OID_ISO_IDENTIFIED_ORG MBEDTLS_OID_OIW_SECSIG_ALG "\x07" /**< desCBC OBJECT IDENTIFIER ::= { iso(1) identified-organization(3) oiw(14) secsig(3) algorithms(2) 7 } */
+#define MBEDTLS_OID_DES_EDE3_CBC                MBEDTLS_OID_RSA_COMPANY "\x03\x07" /**< des-ede3-cbc OBJECT IDENTIFIER ::= { iso(1) member-body(2) -- us(840) rsadsi(113549) encryptionAlgorithm(3) 7 } */
+
+/*
+ * PKCS#5 OIDs
+ */
+#define MBEDTLS_OID_PKCS5_PBKDF2                MBEDTLS_OID_PKCS5 "\x0c" /**< id-PBKDF2 OBJECT IDENTIFIER ::= {pkcs-5 12} */
+#define MBEDTLS_OID_PKCS5_PBES2                 MBEDTLS_OID_PKCS5 "\x0d" /**< id-PBES2 OBJECT IDENTIFIER ::= {pkcs-5 13} */
+#define MBEDTLS_OID_PKCS5_PBMAC1                MBEDTLS_OID_PKCS5 "\x0e" /**< id-PBMAC1 OBJECT IDENTIFIER ::= {pkcs-5 14} */
+
+/*
+ * PKCS#5 PBES1 algorithms
+ */
+#define MBEDTLS_OID_PKCS5_PBE_MD2_DES_CBC       MBEDTLS_OID_PKCS5 "\x01" /**< pbeWithMD2AndDES-CBC OBJECT IDENTIFIER ::= {pkcs-5 1} */
+#define MBEDTLS_OID_PKCS5_PBE_MD2_RC2_CBC       MBEDTLS_OID_PKCS5 "\x04" /**< pbeWithMD2AndRC2-CBC OBJECT IDENTIFIER ::= {pkcs-5 4} */
+#define MBEDTLS_OID_PKCS5_PBE_MD5_DES_CBC       MBEDTLS_OID_PKCS5 "\x03" /**< pbeWithMD5AndDES-CBC OBJECT IDENTIFIER ::= {pkcs-5 3} */
+#define MBEDTLS_OID_PKCS5_PBE_MD5_RC2_CBC       MBEDTLS_OID_PKCS5 "\x06" /**< pbeWithMD5AndRC2-CBC OBJECT IDENTIFIER ::= {pkcs-5 6} */
+#define MBEDTLS_OID_PKCS5_PBE_SHA1_DES_CBC      MBEDTLS_OID_PKCS5 "\x0a" /**< pbeWithSHA1AndDES-CBC OBJECT IDENTIFIER ::= {pkcs-5 10} */
+#define MBEDTLS_OID_PKCS5_PBE_SHA1_RC2_CBC      MBEDTLS_OID_PKCS5 "\x0b" /**< pbeWithSHA1AndRC2-CBC OBJECT IDENTIFIER ::= {pkcs-5 11} */
+
+/*
+ * PKCS#8 OIDs
+ */
+#define MBEDTLS_OID_PKCS9_CSR_EXT_REQ           MBEDTLS_OID_PKCS9 "\x0e" /**< extensionRequest OBJECT IDENTIFIER ::= {pkcs-9 14} */
+
+/*
+ * PKCS#12 PBE OIDs
+ */
+#define MBEDTLS_OID_PKCS12_PBE                      MBEDTLS_OID_PKCS12 "\x01" /**< pkcs-12PbeIds OBJECT IDENTIFIER ::= {pkcs-12 1} */
+
+#define MBEDTLS_OID_PKCS12_PBE_SHA1_RC4_128         MBEDTLS_OID_PKCS12_PBE "\x01" /**< pbeWithSHAAnd128BitRC4 OBJECT IDENTIFIER ::= {pkcs-12PbeIds 1} */
+#define MBEDTLS_OID_PKCS12_PBE_SHA1_RC4_40          MBEDTLS_OID_PKCS12_PBE "\x02" /**< pbeWithSHAAnd40BitRC4 OBJECT IDENTIFIER ::= {pkcs-12PbeIds 2} */
+#define MBEDTLS_OID_PKCS12_PBE_SHA1_DES3_EDE_CBC    MBEDTLS_OID_PKCS12_PBE "\x03" /**< pbeWithSHAAnd3-KeyTripleDES-CBC OBJECT IDENTIFIER ::= {pkcs-12PbeIds 3} */
+#define MBEDTLS_OID_PKCS12_PBE_SHA1_DES2_EDE_CBC    MBEDTLS_OID_PKCS12_PBE "\x04" /**< pbeWithSHAAnd2-KeyTripleDES-CBC OBJECT IDENTIFIER ::= {pkcs-12PbeIds 4} */
+#define MBEDTLS_OID_PKCS12_PBE_SHA1_RC2_128_CBC     MBEDTLS_OID_PKCS12_PBE "\x05" /**< pbeWithSHAAnd128BitRC2-CBC OBJECT IDENTIFIER ::= {pkcs-12PbeIds 5} */
+#define MBEDTLS_OID_PKCS12_PBE_SHA1_RC2_40_CBC      MBEDTLS_OID_PKCS12_PBE "\x06" /**< pbeWithSHAAnd40BitRC2-CBC OBJECT IDENTIFIER ::= {pkcs-12PbeIds 6} */
+
+/*
+ * EC key algorithms from RFC 5480
+ */
+
+/* id-ecPublicKey OBJECT IDENTIFIER ::= {
+ *       iso(1) member-body(2) us(840) ansi-X9-62(10045) keyType(2) 1 } */
+#define MBEDTLS_OID_EC_ALG_UNRESTRICTED         MBEDTLS_OID_ANSI_X9_62 "\x02\01"
+
+/*   id-ecDH OBJECT IDENTIFIER ::= {
+ *     iso(1) identified-organization(3) certicom(132)
+ *     schemes(1) ecdh(12) } */
+#define MBEDTLS_OID_EC_ALG_ECDH                 MBEDTLS_OID_CERTICOM "\x01\x0c"
+
+/*
+ * ECParameters namedCurve identifiers, from RFC 5480, RFC 5639, and SEC2
+ */
+
+/* secp192r1 OBJECT IDENTIFIER ::= {
+ *   iso(1) member-body(2) us(840) ansi-X9-62(10045) curves(3) prime(1) 1 } */
+#define MBEDTLS_OID_EC_GRP_SECP192R1        MBEDTLS_OID_ANSI_X9_62 "\x03\x01\x01"
+
+/* secp224r1 OBJECT IDENTIFIER ::= {
+ *   iso(1) identified-organization(3) certicom(132) curve(0) 33 } */
+#define MBEDTLS_OID_EC_GRP_SECP224R1        MBEDTLS_OID_CERTICOM "\x00\x21"
+
+/* secp256r1 OBJECT IDENTIFIER ::= {
+ *   iso(1) member-body(2) us(840) ansi-X9-62(10045) curves(3) prime(1) 7 } */
+#define MBEDTLS_OID_EC_GRP_SECP256R1        MBEDTLS_OID_ANSI_X9_62 "\x03\x01\x07"
+
+/* secp384r1 OBJECT IDENTIFIER ::= {
+ *   iso(1) identified-organization(3) certicom(132) curve(0) 34 } */
+#define MBEDTLS_OID_EC_GRP_SECP384R1        MBEDTLS_OID_CERTICOM "\x00\x22"
+
+/* secp521r1 OBJECT IDENTIFIER ::= {
+ *   iso(1) identified-organization(3) certicom(132) curve(0) 35 } */
+#define MBEDTLS_OID_EC_GRP_SECP521R1        MBEDTLS_OID_CERTICOM "\x00\x23"
+
+/* secp192k1 OBJECT IDENTIFIER ::= {
+ *   iso(1) identified-organization(3) certicom(132) curve(0) 31 } */
+#define MBEDTLS_OID_EC_GRP_SECP192K1        MBEDTLS_OID_CERTICOM "\x00\x1f"
+
+/* secp224k1 OBJECT IDENTIFIER ::= {
+ *   iso(1) identified-organization(3) certicom(132) curve(0) 32 } */
+#define MBEDTLS_OID_EC_GRP_SECP224K1        MBEDTLS_OID_CERTICOM "\x00\x20"
+
+/* secp256k1 OBJECT IDENTIFIER ::= {
+ *   iso(1) identified-organization(3) certicom(132) curve(0) 10 } */
+#define MBEDTLS_OID_EC_GRP_SECP256K1        MBEDTLS_OID_CERTICOM "\x00\x0a"
+
+/* RFC 5639 4.1
+ * ecStdCurvesAndGeneration OBJECT IDENTIFIER::= {iso(1)
+ * identified-organization(3) teletrust(36) algorithm(3) signature-
+ * algorithm(3) ecSign(2) 8}
+ * ellipticCurve OBJECT IDENTIFIER ::= {ecStdCurvesAndGeneration 1}
+ * versionOne OBJECT IDENTIFIER ::= {ellipticCurve 1} */
+#define MBEDTLS_OID_EC_BRAINPOOL_V1         MBEDTLS_OID_TELETRUST "\x03\x03\x02\x08\x01\x01"
+
+/* brainpoolP256r1 OBJECT IDENTIFIER ::= {versionOne 7} */
+#define MBEDTLS_OID_EC_GRP_BP256R1          MBEDTLS_OID_EC_BRAINPOOL_V1 "\x07"
+
+/* brainpoolP384r1 OBJECT IDENTIFIER ::= {versionOne 11} */
+#define MBEDTLS_OID_EC_GRP_BP384R1          MBEDTLS_OID_EC_BRAINPOOL_V1 "\x0B"
+
+/* brainpoolP512r1 OBJECT IDENTIFIER ::= {versionOne 13} */
+#define MBEDTLS_OID_EC_GRP_BP512R1          MBEDTLS_OID_EC_BRAINPOOL_V1 "\x0D"
+
+/*
+ * SEC1 C.1
+ *
+ * prime-field OBJECT IDENTIFIER ::= { id-fieldType 1 }
+ * id-fieldType OBJECT IDENTIFIER ::= { ansi-X9-62 fieldType(1)}
+ */
+#define MBEDTLS_OID_ANSI_X9_62_FIELD_TYPE   MBEDTLS_OID_ANSI_X9_62 "\x01"
+#define MBEDTLS_OID_ANSI_X9_62_PRIME_FIELD  MBEDTLS_OID_ANSI_X9_62_FIELD_TYPE "\x01"
+
+/*
+ * ECDSA signature identifiers, from RFC 5480
+ */
+#define MBEDTLS_OID_ANSI_X9_62_SIG          MBEDTLS_OID_ANSI_X9_62 "\x04" /* signatures(4) */
+#define MBEDTLS_OID_ANSI_X9_62_SIG_SHA2     MBEDTLS_OID_ANSI_X9_62_SIG "\x03" /* ecdsa-with-SHA2(3) */
+
+/* ecdsa-with-SHA1 OBJECT IDENTIFIER ::= {
+ *   iso(1) member-body(2) us(840) ansi-X9-62(10045) signatures(4) 1 } */
+#define MBEDTLS_OID_ECDSA_SHA1              MBEDTLS_OID_ANSI_X9_62_SIG "\x01"
+
+/* ecdsa-with-SHA224 OBJECT IDENTIFIER ::= {
+ *   iso(1) member-body(2) us(840) ansi-X9-62(10045) signatures(4)
+ *   ecdsa-with-SHA2(3) 1 } */
+#define MBEDTLS_OID_ECDSA_SHA224            MBEDTLS_OID_ANSI_X9_62_SIG_SHA2 "\x01"
+
+/* ecdsa-with-SHA256 OBJECT IDENTIFIER ::= {
+ *   iso(1) member-body(2) us(840) ansi-X9-62(10045) signatures(4)
+ *   ecdsa-with-SHA2(3) 2 } */
+#define MBEDTLS_OID_ECDSA_SHA256            MBEDTLS_OID_ANSI_X9_62_SIG_SHA2 "\x02"
+
+/* ecdsa-with-SHA384 OBJECT IDENTIFIER ::= {
+ *   iso(1) member-body(2) us(840) ansi-X9-62(10045) signatures(4)
+ *   ecdsa-with-SHA2(3) 3 } */
+#define MBEDTLS_OID_ECDSA_SHA384            MBEDTLS_OID_ANSI_X9_62_SIG_SHA2 "\x03"
+
+/* ecdsa-with-SHA512 OBJECT IDENTIFIER ::= {
+ *   iso(1) member-body(2) us(840) ansi-X9-62(10045) signatures(4)
+ *   ecdsa-with-SHA2(3) 4 } */
+#define MBEDTLS_OID_ECDSA_SHA512            MBEDTLS_OID_ANSI_X9_62_SIG_SHA2 "\x04"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Base OID descriptor structure
+ */
+typedef struct {
+    const char *asn1;               /*!< OID ASN.1 representation       */
+    size_t asn1_len;                /*!< length of asn1                 */
+    const char *name;               /*!< official name (e.g. from RFC)  */
+    const char *description;        /*!< human friendly description     */
+} mbedtls_oid_descriptor_t;
+
+/**
+ * \brief           Translate an ASN.1 OID into its numeric representation
+ *                  (e.g. "\x2A\x86\x48\x86\xF7\x0D" into "1.2.840.113549")
+ *
+ * \param buf       buffer to put representation in
+ * \param size      size of the buffer
+ * \param oid       OID to translate
+ *
+ * \return          Length of the string written (excluding final NULL) or
+ *                  MBEDTLS_ERR_OID_BUF_TOO_SMALL in case of error
+ */
+int mbedtls_oid_get_numeric_string(char *buf, size_t size, const mbedtls_asn1_buf *oid);
+
+#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C)
+/**
+ * \brief          Translate an X.509 extension OID into local values
+ *
+ * \param oid      OID to use
+ * \param ext_type place to store the extension type
+ *
+ * \return         0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND
+ */
+int mbedtls_oid_get_x509_ext_type(const mbedtls_asn1_buf *oid, int *ext_type);
+#endif
+
+/**
+ * \brief          Translate an X.509 attribute type OID into the short name
+ *                 (e.g. the OID for an X520 Common Name into "CN")
+ *
+ * \param oid      OID to use
+ * \param short_name    place to store the string pointer
+ *
+ * \return         0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND
+ */
+int mbedtls_oid_get_attr_short_name(const mbedtls_asn1_buf *oid, const char **short_name);
+
+/**
+ * \brief          Translate PublicKeyAlgorithm OID into pk_type
+ *
+ * \param oid      OID to use
+ * \param pk_alg   place to store public key algorithm
+ *
+ * \return         0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND
+ */
+int mbedtls_oid_get_pk_alg(const mbedtls_asn1_buf *oid, mbedtls_pk_type_t *pk_alg);
+
+/**
+ * \brief          Translate pk_type into PublicKeyAlgorithm OID
+ *
+ * \param pk_alg   Public key type to look for
+ * \param oid      place to store ASN.1 OID string pointer
+ * \param olen     length of the OID
+ *
+ * \return         0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND
+ */
+int mbedtls_oid_get_oid_by_pk_alg(mbedtls_pk_type_t pk_alg,
+        const char **oid, size_t *olen);
+
+#if defined(MBEDTLS_ECP_C)
+/**
+ * \brief          Translate NamedCurve OID into an EC group identifier
+ *
+ * \param oid      OID to use
+ * \param grp_id   place to store group id
+ *
+ * \return         0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND
+ */
+int mbedtls_oid_get_ec_grp(const mbedtls_asn1_buf *oid, mbedtls_ecp_group_id *grp_id);
+
+/**
+ * \brief          Translate EC group identifier into NamedCurve OID
+ *
+ * \param grp_id   EC group identifier
+ * \param oid      place to store ASN.1 OID string pointer
+ * \param olen     length of the OID
+ *
+ * \return         0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND
+ */
+int mbedtls_oid_get_oid_by_ec_grp(mbedtls_ecp_group_id grp_id,
+        const char **oid, size_t *olen);
+#endif /* MBEDTLS_ECP_C */
+
+#if defined(MBEDTLS_MD_C)
+/**
+ * \brief          Translate SignatureAlgorithm OID into md_type and pk_type
+ *
+ * \param oid      OID to use
+ * \param md_alg   place to store message digest algorithm
+ * \param pk_alg   place to store public key algorithm
+ *
+ * \return         0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND
+ */
+int mbedtls_oid_get_sig_alg(const mbedtls_asn1_buf *oid,
+                                        mbedtls_md_type_t *md_alg, mbedtls_pk_type_t *pk_alg);
+
+/**
+ * \brief          Translate SignatureAlgorithm OID into description
+ *
+ * \param oid      OID to use
+ * \param desc     place to store string pointer
+ *
+ * \return         0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND
+ */
+int mbedtls_oid_get_sig_alg_desc(const mbedtls_asn1_buf *oid, const char **desc);
+
+/**
+ * \brief          Translate md_type and pk_type into SignatureAlgorithm OID
+ *
+ * \param md_alg   message digest algorithm
+ * \param pk_alg   public key algorithm
+ * \param oid      place to store ASN.1 OID string pointer
+ * \param olen     length of the OID
+ *
+ * \return         0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND
+ */
+int mbedtls_oid_get_oid_by_sig_alg(mbedtls_pk_type_t pk_alg, mbedtls_md_type_t md_alg,
+        const char **oid, size_t *olen);
+
+/**
+ * \brief          Translate hash algorithm OID into md_type
+ *
+ * \param oid      OID to use
+ * \param md_alg   place to store message digest algorithm
+ *
+ * \return         0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND
+ */
+int mbedtls_oid_get_md_alg(const mbedtls_asn1_buf *oid, mbedtls_md_type_t *md_alg);
+#endif /* MBEDTLS_MD_C */
+
+/**
+ * \brief          Translate Extended Key Usage OID into description
+ *
+ * \param oid      OID to use
+ * \param desc     place to store string pointer
+ *
+ * \return         0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND
+ */
+int mbedtls_oid_get_extended_key_usage(const mbedtls_asn1_buf *oid, const char **desc);
+
+/**
+ * \brief          Translate md_type into hash algorithm OID
+ *
+ * \param md_alg   message digest algorithm
+ * \param oid      place to store ASN.1 OID string pointer
+ * \param olen     length of the OID
+ *
+ * \return         0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND
+ */
+int mbedtls_oid_get_oid_by_md(mbedtls_md_type_t md_alg, const char **oid, size_t *olen);
+
+#if defined(MBEDTLS_CIPHER_C)
+/**
+ * \brief          Translate encryption algorithm OID into cipher_type
+ *
+ * \param oid           OID to use
+ * \param cipher_alg    place to store cipher algorithm
+ *
+ * \return         0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND
+ */
+int mbedtls_oid_get_cipher_alg(const mbedtls_asn1_buf *oid, mbedtls_cipher_type_t *cipher_alg);
+#endif /* MBEDTLS_CIPHER_C */
+
+#if defined(MBEDTLS_PKCS12_C)
+/**
+ * \brief          Translate PKCS#12 PBE algorithm OID into md_type and
+ *                 cipher_type
+ *
+ * \param oid           OID to use
+ * \param md_alg        place to store message digest algorithm
+ * \param cipher_alg    place to store cipher algorithm
+ *
+ * \return         0 if successful, or MBEDTLS_ERR_OID_NOT_FOUND
+ */
+int mbedtls_oid_get_pkcs12_pbe_alg(const mbedtls_asn1_buf *oid, mbedtls_md_type_t *md_alg,
+        mbedtls_cipher_type_t *cipher_alg);
+#endif /* MBEDTLS_PKCS12_C */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* oid.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/pem.h

@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_PEM_H
+#define MBEDTLS_PEM_H
+
+#include <stddef.h>
+
+/**
+ * \name PEM Error codes
+ * These error codes are returned in case of errors reading the
+ * PEM data.
+ * \{
+ */
+#define MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT          -0x1080  /**< No PEM header or footer found. */
+#define MBEDTLS_ERR_PEM_INVALID_DATA                      -0x1100  /**< PEM string is not as expected. */
+#define MBEDTLS_ERR_PEM_ALLOC_FAILED                      -0x1180  /**< Failed to allocate memory. */
+#define MBEDTLS_ERR_PEM_INVALID_ENC_IV                    -0x1200  /**< RSA IV is not in hex-format. */
+#define MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG                   -0x1280  /**< Unsupported key encryption algorithm. */
+#define MBEDTLS_ERR_PEM_PASSWORD_REQUIRED                 -0x1300  /**< Private key password can't be empty. */
+#define MBEDTLS_ERR_PEM_PASSWORD_MISMATCH                 -0x1380  /**< Given private key password does not allow for correct decryption. */
+#define MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE               -0x1400  /**< Unavailable feature, e.g. hashing/encryption combination. */
+#define MBEDTLS_ERR_PEM_BAD_INPUT_DATA                    -0x1480  /**< Bad input parameters to function. */
+/* \} name */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(MBEDTLS_PEM_PARSE_C)
+/**
+ * \brief       PEM context structure
+ */
+typedef struct {
+    unsigned char *buf;     /*!< buffer for decoded data             */
+    size_t buflen;          /*!< length of the buffer                */
+    unsigned char *info;    /*!< buffer for extra header information */
+}
+mbedtls_pem_context;
+
+/**
+ * \brief       PEM context setup
+ *
+ * \param ctx   context to be initialized
+ */
+void mbedtls_pem_init(mbedtls_pem_context *ctx);
+
+/**
+ * \brief       Read a buffer for PEM information and store the resulting
+ *              data into the specified context buffers.
+ *
+ * \param ctx       context to use
+ * \param header    header string to seek and expect
+ * \param footer    footer string to seek and expect
+ * \param data      source data to look in (must be nul-terminated)
+ * \param pwd       password for decryption (can be NULL)
+ * \param pwdlen    length of password
+ * \param use_len   destination for total length used (set after header is
+ *                  correctly read, so unless you get
+ *                  MBEDTLS_ERR_PEM_BAD_INPUT_DATA or
+ *                  MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT, use_len is
+ *                  the length to skip)
+ *
+ * \note            Attempts to check password correctness by verifying if
+ *                  the decrypted text starts with an ASN.1 sequence of
+ *                  appropriate length
+ *
+ * \return          0 on success, or a specific PEM error code
+ */
+int mbedtls_pem_read_buffer(mbedtls_pem_context *ctx, const char *header, const char *footer,
+                                        const unsigned char *data,
+                                        const unsigned char *pwd,
+                                        size_t pwdlen, size_t *use_len);
+
+/**
+ * \brief       PEM context memory freeing
+ *
+ * \param ctx   context to be freed
+ */
+void mbedtls_pem_free(mbedtls_pem_context *ctx);
+#endif /* MBEDTLS_PEM_PARSE_C */
+
+#if defined(MBEDTLS_PEM_WRITE_C)
+/**
+ * \brief           Write a buffer of PEM information from a DER encoded
+ *                  buffer.
+ *
+ * \param header    header string to write
+ * \param footer    footer string to write
+ * \param der_data  DER data to write
+ * \param der_len   length of the DER data
+ * \param buf       buffer to write to
+ * \param buf_len   length of output buffer
+ * \param olen      total length written / required (if buf_len is not enough)
+ *
+ * \return          0 on success, or a specific PEM or BASE64 error code. On
+ *                  MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL olen is the required
+ *                  size.
+ */
+int mbedtls_pem_write_buffer(const char *header, const char *footer,
+        const unsigned char *der_data, size_t der_len,
+        unsigned char *buf, size_t buf_len, size_t *olen);
+#endif /* MBEDTLS_PEM_WRITE_C */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* pem.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/pk.h

@@ -0,0 +1,596 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+
+#ifndef MBEDTLS_PK_H
+#define MBEDTLS_PK_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#include "md.h"
+
+#if defined(MBEDTLS_RSA_C)
+    #include "rsa.h"
+#endif
+
+#if defined(MBEDTLS_ECP_C)
+    #include "ecp.h"
+#endif
+
+#if defined(MBEDTLS_ECDSA_C)
+    #include "ecdsa.h"
+#endif
+
+#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
+    !defined(inline) && !defined(__cplusplus)
+    #define inline __inline
+#endif
+
+#define MBEDTLS_ERR_PK_ALLOC_FAILED        -0x3F80  /**< Memory allocation failed. */
+#define MBEDTLS_ERR_PK_TYPE_MISMATCH       -0x3F00  /**< Type mismatch, eg attempt to encrypt with an ECDSA key */
+#define MBEDTLS_ERR_PK_BAD_INPUT_DATA      -0x3E80  /**< Bad input parameters to function. */
+#define MBEDTLS_ERR_PK_FILE_IO_ERROR       -0x3E00  /**< Read/write of file failed. */
+#define MBEDTLS_ERR_PK_KEY_INVALID_VERSION -0x3D80  /**< Unsupported key version */
+#define MBEDTLS_ERR_PK_KEY_INVALID_FORMAT  -0x3D00  /**< Invalid key tag or value. */
+#define MBEDTLS_ERR_PK_UNKNOWN_PK_ALG      -0x3C80  /**< Key algorithm is unsupported (only RSA and EC are supported). */
+#define MBEDTLS_ERR_PK_PASSWORD_REQUIRED   -0x3C00  /**< Private key password can't be empty. */
+#define MBEDTLS_ERR_PK_PASSWORD_MISMATCH   -0x3B80  /**< Given private key password does not allow for correct decryption. */
+#define MBEDTLS_ERR_PK_INVALID_PUBKEY      -0x3B00  /**< The pubkey tag or value is invalid (only RSA and EC are supported). */
+#define MBEDTLS_ERR_PK_INVALID_ALG         -0x3A80  /**< The algorithm tag or value is invalid. */
+#define MBEDTLS_ERR_PK_UNKNOWN_NAMED_CURVE -0x3A00  /**< Elliptic curve is unsupported (only NIST curves are supported). */
+#define MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE -0x3980  /**< Unavailable feature, e.g. RSA disabled for RSA key. */
+#define MBEDTLS_ERR_PK_SIG_LEN_MISMATCH    -0x3900  /**< The signature is valid but its length is less than expected. */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          Public key types
+ */
+typedef enum {
+    MBEDTLS_PK_NONE = 0,
+    MBEDTLS_PK_RSA,
+    MBEDTLS_PK_ECKEY,
+    MBEDTLS_PK_ECKEY_DH,
+    MBEDTLS_PK_ECDSA,
+    MBEDTLS_PK_RSA_ALT,
+    MBEDTLS_PK_RSASSA_PSS,
+} mbedtls_pk_type_t;
+
+/**
+ * \brief           Options for RSASSA-PSS signature verification.
+ *                  See \c mbedtls_rsa_rsassa_pss_verify_ext()
+ */
+typedef struct {
+    mbedtls_md_type_t mgf1_hash_id;
+    int expected_salt_len;
+
+} mbedtls_pk_rsassa_pss_options;
+
+/**
+ * \brief           Types for interfacing with the debug module
+ */
+typedef enum {
+    MBEDTLS_PK_DEBUG_NONE = 0,
+    MBEDTLS_PK_DEBUG_MPI,
+    MBEDTLS_PK_DEBUG_ECP,
+} mbedtls_pk_debug_type;
+
+/**
+ * \brief           Item to send to the debug module
+ */
+typedef struct {
+    mbedtls_pk_debug_type type;
+    const char *name;
+    void *value;
+} mbedtls_pk_debug_item;
+
+/** Maximum number of item send for debugging, plus 1 */
+#define MBEDTLS_PK_DEBUG_MAX_ITEMS 3
+
+/**
+ * \brief           Public key information and operations
+ */
+typedef struct mbedtls_pk_info_t mbedtls_pk_info_t;
+
+/**
+ * \brief           Public key container
+ */
+typedef struct {
+    const mbedtls_pk_info_t    *pk_info; /**< Public key informations        */
+    void                       *pk_ctx;  /**< Underlying public key context  */
+} mbedtls_pk_context;
+
+#if defined(MBEDTLS_RSA_C)
+/**
+ * Quick access to an RSA context inside a PK context.
+ *
+ * \warning You must make sure the PK context actually holds an RSA context
+ * before using this function!
+ */
+static inline mbedtls_rsa_context *mbedtls_pk_rsa(const mbedtls_pk_context pk)
+{
+    return ((mbedtls_rsa_context *)(pk).pk_ctx);
+}
+#endif /* MBEDTLS_RSA_C */
+
+#if defined(MBEDTLS_ECP_C)
+/**
+ * Quick access to an EC context inside a PK context.
+ *
+ * \warning You must make sure the PK context actually holds an EC context
+ * before using this function!
+ */
+static inline mbedtls_ecp_keypair *mbedtls_pk_ec(const mbedtls_pk_context pk)
+{
+    return ((mbedtls_ecp_keypair *)(pk).pk_ctx);
+}
+#endif /* MBEDTLS_ECP_C */
+
+#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
+/**
+ * \brief           Types for RSA-alt abstraction
+ */
+typedef int (*mbedtls_pk_rsa_alt_decrypt_func)(void *ctx, int mode, size_t *olen,
+        const unsigned char *input, unsigned char *output,
+        size_t output_max_len);
+typedef int (*mbedtls_pk_rsa_alt_sign_func)(void *ctx,
+        int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
+        int mode, mbedtls_md_type_t md_alg, unsigned int hashlen,
+        const unsigned char *hash, unsigned char *sig);
+typedef size_t (*mbedtls_pk_rsa_alt_key_len_func)(void *ctx);
+#endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */
+
+/**
+ * \brief           Return information associated with the given PK type
+ *
+ * \param pk_type   PK type to search for.
+ *
+ * \return          The PK info associated with the type or NULL if not found.
+ */
+const mbedtls_pk_info_t *mbedtls_pk_info_from_type(mbedtls_pk_type_t pk_type);
+
+/**
+ * \brief           Initialize a mbedtls_pk_context (as NONE)
+ */
+void mbedtls_pk_init(mbedtls_pk_context *ctx);
+
+/**
+ * \brief           Free a mbedtls_pk_context
+ */
+void mbedtls_pk_free(mbedtls_pk_context *ctx);
+
+/**
+ * \brief           Initialize a PK context with the information given
+ *                  and allocates the type-specific PK subcontext.
+ *
+ * \param ctx       Context to initialize. Must be empty (type NONE).
+ * \param info      Information to use
+ *
+ * \return          0 on success,
+ *                  MBEDTLS_ERR_PK_BAD_INPUT_DATA on invalid input,
+ *                  MBEDTLS_ERR_PK_ALLOC_FAILED on allocation failure.
+ *
+ * \note            For contexts holding an RSA-alt key, use
+ *                  \c mbedtls_pk_setup_rsa_alt() instead.
+ */
+int mbedtls_pk_setup(mbedtls_pk_context *ctx, const mbedtls_pk_info_t *info);
+
+#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
+/**
+ * \brief           Initialize an RSA-alt context
+ *
+ * \param ctx       Context to initialize. Must be empty (type NONE).
+ * \param key       RSA key pointer
+ * \param decrypt_func  Decryption function
+ * \param sign_func     Signing function
+ * \param key_len_func  Function returning key length in bytes
+ *
+ * \return          0 on success, or MBEDTLS_ERR_PK_BAD_INPUT_DATA if the
+ *                  context wasn't already initialized as RSA_ALT.
+ *
+ * \note            This function replaces \c mbedtls_pk_setup() for RSA-alt.
+ */
+int mbedtls_pk_setup_rsa_alt(mbedtls_pk_context *ctx, void *key,
+        mbedtls_pk_rsa_alt_decrypt_func decrypt_func,
+        mbedtls_pk_rsa_alt_sign_func sign_func,
+        mbedtls_pk_rsa_alt_key_len_func key_len_func);
+#endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */
+
+/**
+ * \brief           Get the size in bits of the underlying key
+ *
+ * \param ctx       Context to use
+ *
+ * \return          Key size in bits, or 0 on error
+ */
+size_t mbedtls_pk_get_bitlen(const mbedtls_pk_context *ctx);
+
+/**
+ * \brief           Get the length in bytes of the underlying key
+ * \param ctx       Context to use
+ *
+ * \return          Key length in bytes, or 0 on error
+ */
+static inline size_t mbedtls_pk_get_len(const mbedtls_pk_context *ctx)
+{
+    return ((mbedtls_pk_get_bitlen(ctx) + 7) / 8);
+}
+
+/**
+ * \brief           Tell if a context can do the operation given by type
+ *
+ * \param ctx       Context to test
+ * \param type      Target type
+ *
+ * \return          0 if context can't do the operations,
+ *                  1 otherwise.
+ */
+int mbedtls_pk_can_do(const mbedtls_pk_context *ctx, mbedtls_pk_type_t type);
+
+/**
+ * \brief           Verify signature (including padding if relevant).
+ *
+ * \param ctx       PK context to use
+ * \param md_alg    Hash algorithm used (see notes)
+ * \param hash      Hash of the message to sign
+ * \param hash_len  Hash length or 0 (see notes)
+ * \param sig       Signature to verify
+ * \param sig_len   Signature length
+ *
+ * \return          0 on success (signature is valid),
+ *                  MBEDTLS_ERR_PK_SIG_LEN_MISMATCH if the signature is
+ *                  valid but its actual length is less than sig_len,
+ *                  or a specific error code.
+ *
+ * \note            For RSA keys, the default padding type is PKCS#1 v1.5.
+ *                  Use \c mbedtls_pk_verify_ext( MBEDTLS_PK_RSASSA_PSS, ... )
+ *                  to verify RSASSA_PSS signatures.
+ *
+ * \note            If hash_len is 0, then the length associated with md_alg
+ *                  is used instead, or an error returned if it is invalid.
+ *
+ * \note            md_alg may be MBEDTLS_MD_NONE, only if hash_len != 0
+ */
+int mbedtls_pk_verify(mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
+                                  const unsigned char *hash, size_t hash_len,
+                                  const unsigned char *sig, size_t sig_len);
+
+/**
+ * \brief           Verify signature, with options.
+ *                  (Includes verification of the padding depending on type.)
+ *
+ * \param type      Signature type (inc. possible padding type) to verify
+ * \param options   Pointer to type-specific options, or NULL
+ * \param ctx       PK context to use
+ * \param md_alg    Hash algorithm used (see notes)
+ * \param hash      Hash of the message to sign
+ * \param hash_len  Hash length or 0 (see notes)
+ * \param sig       Signature to verify
+ * \param sig_len   Signature length
+ *
+ * \return          0 on success (signature is valid),
+ *                  MBEDTLS_ERR_PK_TYPE_MISMATCH if the PK context can't be
+ *                  used for this type of signatures,
+ *                  MBEDTLS_ERR_PK_SIG_LEN_MISMATCH if the signature is
+ *                  valid but its actual length is less than sig_len,
+ *                  or a specific error code.
+ *
+ * \note            If hash_len is 0, then the length associated with md_alg
+ *                  is used instead, or an error returned if it is invalid.
+ *
+ * \note            md_alg may be MBEDTLS_MD_NONE, only if hash_len != 0
+ *
+ * \note            If type is MBEDTLS_PK_RSASSA_PSS, then options must point
+ *                  to a mbedtls_pk_rsassa_pss_options structure,
+ *                  otherwise it must be NULL.
+ */
+int mbedtls_pk_verify_ext(mbedtls_pk_type_t type, const void *options,
+                                      mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
+                                      const unsigned char *hash, size_t hash_len,
+                                      const unsigned char *sig, size_t sig_len);
+
+/**
+ * \brief           Make signature, including padding if relevant.
+ *
+ * \param ctx       PK context to use - must hold a private key
+ * \param md_alg    Hash algorithm used (see notes)
+ * \param hash      Hash of the message to sign
+ * \param hash_len  Hash length or 0 (see notes)
+ * \param sig       Place to write the signature
+ * \param sig_len   Number of bytes written
+ * \param f_rng     RNG function
+ * \param p_rng     RNG parameter
+ *
+ * \return          0 on success, or a specific error code.
+ *
+ * \note            For RSA keys, the default padding type is PKCS#1 v1.5.
+ *                  There is no interface in the PK module to make RSASSA-PSS
+ *                  signatures yet.
+ *
+ * \note            If hash_len is 0, then the length associated with md_alg
+ *                  is used instead, or an error returned if it is invalid.
+ *
+ * \note            For RSA, md_alg may be MBEDTLS_MD_NONE if hash_len != 0.
+ *                  For ECDSA, md_alg may never be MBEDTLS_MD_NONE.
+ */
+int mbedtls_pk_sign(mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
+                                const unsigned char *hash, size_t hash_len,
+                                unsigned char *sig, size_t *sig_len,
+                                int (*f_rng)(void *, unsigned char *, size_t), void *p_rng);
+
+/**
+ * \brief           Decrypt message (including padding if relevant).
+ *
+ * \param ctx       PK context to use - must hold a private key
+ * \param input     Input to decrypt
+ * \param ilen      Input size
+ * \param output    Decrypted output
+ * \param olen      Decrypted message length
+ * \param osize     Size of the output buffer
+ * \param f_rng     RNG function
+ * \param p_rng     RNG parameter
+ *
+ * \note            For RSA keys, the default padding type is PKCS#1 v1.5.
+ *
+ * \return          0 on success, or a specific error code.
+ */
+int mbedtls_pk_decrypt(mbedtls_pk_context *ctx,
+                                   const unsigned char *input, size_t ilen,
+                                   unsigned char *output, size_t *olen, size_t osize,
+                                   int (*f_rng)(void *, unsigned char *, size_t), void *p_rng);
+
+/**
+ * \brief           Encrypt message (including padding if relevant).
+ *
+ * \param ctx       PK context to use
+ * \param input     Message to encrypt
+ * \param ilen      Message size
+ * \param output    Encrypted output
+ * \param olen      Encrypted output length
+ * \param osize     Size of the output buffer
+ * \param f_rng     RNG function
+ * \param p_rng     RNG parameter
+ *
+ * \note            For RSA keys, the default padding type is PKCS#1 v1.5.
+ *
+ * \return          0 on success, or a specific error code.
+ */
+int mbedtls_pk_encrypt(mbedtls_pk_context *ctx,
+                                   const unsigned char *input, size_t ilen,
+                                   unsigned char *output, size_t *olen, size_t osize,
+                                   int (*f_rng)(void *, unsigned char *, size_t), void *p_rng);
+
+/**
+ * \brief           Check if a public-private pair of keys matches.
+ *
+ * \param pub       Context holding a public key.
+ * \param prv       Context holding a private (and public) key.
+ *
+ * \return          0 on success or MBEDTLS_ERR_PK_BAD_INPUT_DATA
+ */
+int mbedtls_pk_check_pair(const mbedtls_pk_context *pub, const mbedtls_pk_context *prv);
+
+/**
+ * \brief           Export debug information
+ *
+ * \param ctx       Context to use
+ * \param items     Place to write debug items
+ *
+ * \return          0 on success or MBEDTLS_ERR_PK_BAD_INPUT_DATA
+ */
+int mbedtls_pk_debug(const mbedtls_pk_context *ctx, mbedtls_pk_debug_item *items);
+
+/**
+ * \brief           Access the type name
+ *
+ * \param ctx       Context to use
+ *
+ * \return          Type name on success, or "invalid PK"
+ */
+const char *mbedtls_pk_get_name(const mbedtls_pk_context *ctx);
+
+/**
+ * \brief           Get the key type
+ *
+ * \param ctx       Context to use
+ *
+ * \return          Type on success, or MBEDTLS_PK_NONE
+ */
+mbedtls_pk_type_t mbedtls_pk_get_type(const mbedtls_pk_context *ctx);
+
+#if defined(MBEDTLS_PK_PARSE_C)
+/** \ingroup pk_module */
+/**
+ * \brief           Parse a private key in PEM or DER format
+ *
+ * \param ctx       key to be initialized
+ * \param key       input buffer
+ * \param keylen    size of the buffer
+ *                  (including the terminating null byte for PEM data)
+ * \param pwd       password for decryption (optional)
+ * \param pwdlen    size of the password
+ *
+ * \note            On entry, ctx must be empty, either freshly initialised
+ *                  with mbedtls_pk_init() or reset with mbedtls_pk_free(). If you need a
+ *                  specific key type, check the result with mbedtls_pk_can_do().
+ *
+ * \note            The key is also checked for correctness.
+ *
+ * \return          0 if successful, or a specific PK or PEM error code
+ */
+int mbedtls_pk_parse_key(mbedtls_pk_context *ctx,
+                                     const unsigned char *key, size_t keylen,
+                                     const unsigned char *pwd, size_t pwdlen);
+
+/** \ingroup pk_module */
+/**
+ * \brief           Parse a public key in PEM or DER format
+ *
+ * \param ctx       key to be initialized
+ * \param key       input buffer
+ * \param keylen    size of the buffer
+ *                  (including the terminating null byte for PEM data)
+ *
+ * \note            On entry, ctx must be empty, either freshly initialised
+ *                  with mbedtls_pk_init() or reset with mbedtls_pk_free(). If you need a
+ *                  specific key type, check the result with mbedtls_pk_can_do().
+ *
+ * \note            The key is also checked for correctness.
+ *
+ * \return          0 if successful, or a specific PK or PEM error code
+ */
+int mbedtls_pk_parse_public_key(mbedtls_pk_context *ctx,
+        const unsigned char *key, size_t keylen);
+
+#if defined(MBEDTLS_FS_IO)
+/** \ingroup pk_module */
+/**
+ * \brief           Load and parse a private key
+ *
+ * \param ctx       key to be initialized
+ * \param path      filename to read the private key from
+ * \param password  password to decrypt the file (can be NULL)
+ *
+ * \note            On entry, ctx must be empty, either freshly initialised
+ *                  with mbedtls_pk_init() or reset with mbedtls_pk_free(). If you need a
+ *                  specific key type, check the result with mbedtls_pk_can_do().
+ *
+ * \note            The key is also checked for correctness.
+ *
+ * \return          0 if successful, or a specific PK or PEM error code
+ */
+int mbedtls_pk_parse_keyfile(mbedtls_pk_context *ctx,
+        const char *path, const char *password);
+
+/** \ingroup pk_module */
+/**
+ * \brief           Load and parse a public key
+ *
+ * \param ctx       key to be initialized
+ * \param path      filename to read the public key from
+ *
+ * \note            On entry, ctx must be empty, either freshly initialised
+ *                  with mbedtls_pk_init() or reset with mbedtls_pk_free(). If
+ *                  you need a specific key type, check the result with
+ *                  mbedtls_pk_can_do().
+ *
+ * \note            The key is also checked for correctness.
+ *
+ * \return          0 if successful, or a specific PK or PEM error code
+ */
+int mbedtls_pk_parse_public_keyfile(mbedtls_pk_context *ctx, const char *path);
+#endif /* MBEDTLS_FS_IO */
+#endif /* MBEDTLS_PK_PARSE_C */
+
+#if defined(MBEDTLS_PK_WRITE_C)
+/**
+ * \brief           Write a private key to a PKCS#1 or SEC1 DER structure
+ *                  Note: data is written at the end of the buffer! Use the
+ *                        return value to determine where you should start
+ *                        using the buffer
+ *
+ * \param ctx       private to write away
+ * \param buf       buffer to write to
+ * \param size      size of the buffer
+ *
+ * \return          length of data written if successful, or a specific
+ *                  error code
+ */
+int mbedtls_pk_write_key_der(mbedtls_pk_context *ctx, unsigned char *buf, size_t size);
+
+/**
+ * \brief           Write a public key to a SubjectPublicKeyInfo DER structure
+ *                  Note: data is written at the end of the buffer! Use the
+ *                        return value to determine where you should start
+ *                        using the buffer
+ *
+ * \param ctx       public key to write away
+ * \param buf       buffer to write to
+ * \param size      size of the buffer
+ *
+ * \return          length of data written if successful, or a specific
+ *                  error code
+ */
+int mbedtls_pk_write_pubkey_der(mbedtls_pk_context *ctx, unsigned char *buf, size_t size);
+
+#if defined(MBEDTLS_PEM_WRITE_C)
+/**
+ * \brief           Write a public key to a PEM string
+ *
+ * \param ctx       public key to write away
+ * \param buf       buffer to write to
+ * \param size      size of the buffer
+ *
+ * \return          0 if successful, or a specific error code
+ */
+int mbedtls_pk_write_pubkey_pem(mbedtls_pk_context *ctx, unsigned char *buf, size_t size);
+
+/**
+ * \brief           Write a private key to a PKCS#1 or SEC1 PEM string
+ *
+ * \param ctx       private to write away
+ * \param buf       buffer to write to
+ * \param size      size of the buffer
+ *
+ * \return          0 if successful, or a specific error code
+ */
+int mbedtls_pk_write_key_pem(mbedtls_pk_context *ctx, unsigned char *buf, size_t size);
+#endif /* MBEDTLS_PEM_WRITE_C */
+#endif /* MBEDTLS_PK_WRITE_C */
+
+/*
+ * WARNING: Low-level functions. You probably do not want to use these unless
+ *          you are certain you do ;)
+ */
+
+#if defined(MBEDTLS_PK_PARSE_C)
+/**
+ * \brief           Parse a SubjectPublicKeyInfo DER structure
+ *
+ * \param p         the position in the ASN.1 data
+ * \param end       end of the buffer
+ * \param pk        the key to fill
+ *
+ * \return          0 if successful, or a specific PK error code
+ */
+int mbedtls_pk_parse_subpubkey(unsigned char **p, const unsigned char *end,
+        mbedtls_pk_context *pk);
+#endif /* MBEDTLS_PK_PARSE_C */
+
+#if defined(MBEDTLS_PK_WRITE_C)
+/**
+ * \brief           Write a subjectPublicKey to ASN.1 data
+ *                  Note: function works backwards in data buffer
+ *
+ * \param p         reference to current position pointer
+ * \param start     start of the buffer (for bounds-checking)
+ * \param key       public key to write away
+ *
+ * \return          the length written or a negative error code
+ */
+int mbedtls_pk_write_pubkey(unsigned char **p, unsigned char *start,
+                                        const mbedtls_pk_context *key);
+#endif /* MBEDTLS_PK_WRITE_C */
+
+/*
+ * Internal module functions. You probably do not want to use these unless you
+ * know you do.
+ */
+#if defined(MBEDTLS_FS_IO)
+int mbedtls_pk_load_file(const char *path, unsigned char **buf, size_t *n);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* MBEDTLS_PK_H */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/pk_internal.h

@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+
+#ifndef MBEDTLS_PK_WRAP_H
+#define MBEDTLS_PK_WRAP_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+#include "config.h"
+#else
+#include MBEDTLS_CONFIG_FILE
+#endif
+
+#include "pk.h"
+
+struct mbedtls_pk_info_t
+{
+    /** Public key type */
+    mbedtls_pk_type_t type;
+
+    /** Type name */
+    const char *name;
+
+    /** Get key size in bits */
+    size_t (*get_bitlen)( const void * );
+
+    /** Tell if the context implements this type (e.g. ECKEY can do ECDSA) */
+    int (*can_do)( mbedtls_pk_type_t type );
+
+    /** Verify signature */
+    int (*verify_func)( void *ctx, mbedtls_md_type_t md_alg,
+                        const unsigned char *hash, size_t hash_len,
+                        const unsigned char *sig, size_t sig_len );
+
+    /** Make signature */
+    int (*sign_func)( void *ctx, mbedtls_md_type_t md_alg,
+                      const unsigned char *hash, size_t hash_len,
+                      unsigned char *sig, size_t *sig_len,
+                      int (*f_rng)(void *, unsigned char *, size_t),
+                      void *p_rng );
+
+    /** Decrypt message */
+    int (*decrypt_func)( void *ctx, const unsigned char *input, size_t ilen,
+                         unsigned char *output, size_t *olen, size_t osize,
+                         int (*f_rng)(void *, unsigned char *, size_t),
+                         void *p_rng );
+
+    /** Encrypt message */
+    int (*encrypt_func)( void *ctx, const unsigned char *input, size_t ilen,
+                         unsigned char *output, size_t *olen, size_t osize,
+                         int (*f_rng)(void *, unsigned char *, size_t),
+                         void *p_rng );
+
+    /** Check public-private key pair */
+    int (*check_pair_func)( const void *pub, const void *prv );
+
+    /** Allocate a new context */
+    void * (*ctx_alloc_func)( void );
+
+    /** Free the given context */
+    void (*ctx_free_func)( void *ctx );
+
+    /** Interface with the debug module */
+    void (*debug_func)( const void *ctx, mbedtls_pk_debug_item *items );
+
+};
+#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
+/* Container for RSA-alt */
+typedef struct
+{
+    void *key;
+    mbedtls_pk_rsa_alt_decrypt_func decrypt_func;
+    mbedtls_pk_rsa_alt_sign_func sign_func;
+    mbedtls_pk_rsa_alt_key_len_func key_len_func;
+} mbedtls_rsa_alt_context;
+#endif
+
+#if defined(MBEDTLS_RSA_C)
+extern const mbedtls_pk_info_t mbedtls_rsa_info;
+#endif
+
+#if defined(MBEDTLS_ECP_C)
+extern const mbedtls_pk_info_t mbedtls_eckey_info;
+extern const mbedtls_pk_info_t mbedtls_eckeydh_info;
+#endif
+
+#if defined(MBEDTLS_ECDSA_C)
+extern const mbedtls_pk_info_t mbedtls_ecdsa_info;
+#endif
+
+#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
+extern const mbedtls_pk_info_t mbedtls_rsa_alt_info;
+#endif
+
+#endif /* MBEDTLS_PK_WRAP_H */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/platform.h

@@ -0,0 +1,279 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_PLATFORM_H
+#define MBEDTLS_PLATFORM_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#if defined(MBEDTLS_HAVE_TIME)
+    #include "mbedtls/platform_time.h"
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \name SECTION: Module settings
+ *
+ * The configuration options you can set for this module are in this section.
+ * Either change them in config.h or define them on the compiler command line.
+ * \{
+ */
+
+#if !defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS)
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#if !defined(MBEDTLS_PLATFORM_STD_SNPRINTF)
+#if defined(_WIN32)
+#define MBEDTLS_PLATFORM_STD_SNPRINTF   mbedtls_platform_win32_snprintf /**< Default snprintf to use  */
+#else
+#define MBEDTLS_PLATFORM_STD_SNPRINTF   snprintf /**< Default snprintf to use  */
+#endif
+#endif
+#if !defined(MBEDTLS_PLATFORM_STD_PRINTF)
+#define MBEDTLS_PLATFORM_STD_PRINTF   printf /**< Default printf to use  */
+#endif
+#if !defined(MBEDTLS_PLATFORM_STD_FPRINTF)
+#define MBEDTLS_PLATFORM_STD_FPRINTF fprintf /**< Default fprintf to use */
+#endif
+#if !defined(MBEDTLS_PLATFORM_STD_CALLOC)
+#define MBEDTLS_PLATFORM_STD_CALLOC   calloc /**< Default allocator to use */
+#endif
+#if !defined(MBEDTLS_PLATFORM_STD_FREE)
+#define MBEDTLS_PLATFORM_STD_FREE       free /**< Default free to use */
+#endif
+#if !defined(MBEDTLS_PLATFORM_STD_EXIT)
+#define MBEDTLS_PLATFORM_STD_EXIT      exit /**< Default exit to use */
+#endif
+#if !defined(MBEDTLS_PLATFORM_STD_TIME)
+#define MBEDTLS_PLATFORM_STD_TIME       time    /**< Default time to use */
+#endif
+#if !defined(MBEDTLS_PLATFORM_STD_EXIT_SUCCESS)
+#define MBEDTLS_PLATFORM_STD_EXIT_SUCCESS  EXIT_SUCCESS /**< Default exit value to use */
+#endif
+#if !defined(MBEDTLS_PLATFORM_STD_EXIT_FAILURE)
+#define MBEDTLS_PLATFORM_STD_EXIT_FAILURE  EXIT_FAILURE /**< Default exit value to use */
+#endif
+#if defined(MBEDTLS_FS_IO)
+#if !defined(MBEDTLS_PLATFORM_STD_NV_SEED_READ)
+#define MBEDTLS_PLATFORM_STD_NV_SEED_READ   mbedtls_platform_std_nv_seed_read
+#endif
+#if !defined(MBEDTLS_PLATFORM_STD_NV_SEED_WRITE)
+#define MBEDTLS_PLATFORM_STD_NV_SEED_WRITE  mbedtls_platform_std_nv_seed_write
+#endif
+#if !defined(MBEDTLS_PLATFORM_STD_NV_SEED_FILE)
+#define MBEDTLS_PLATFORM_STD_NV_SEED_FILE   "seedfile"
+#endif
+#endif /* MBEDTLS_FS_IO */
+#else /* MBEDTLS_PLATFORM_NO_STD_FUNCTIONS */
+#if defined(MBEDTLS_PLATFORM_STD_MEM_HDR)
+#include MBEDTLS_PLATFORM_STD_MEM_HDR
+#endif
+#endif /* MBEDTLS_PLATFORM_NO_STD_FUNCTIONS */
+
+
+/* \} name SECTION: Module settings */
+
+/*
+ * The function pointers for calloc and free
+ */
+#if defined(MBEDTLS_PLATFORM_MEMORY)
+#if defined(MBEDTLS_PLATFORM_FREE_MACRO) && \
+    defined(MBEDTLS_PLATFORM_CALLOC_MACRO)
+#define mbedtls_free       MBEDTLS_PLATFORM_FREE_MACRO
+#define mbedtls_calloc     MBEDTLS_PLATFORM_CALLOC_MACRO
+#else
+/* For size_t */
+#include <stddef.h>
+extern void *(*mbedtls_calloc)(size_t n, size_t size);
+extern void (*mbedtls_free)(void *ptr);
+
+/**
+ * \brief   Set your own memory implementation function pointers
+ *
+ * \param calloc_func   the calloc function implementation
+ * \param free_func     the free function implementation
+ *
+ * \return              0 if successful
+ */
+int mbedtls_platform_set_calloc_free(void *(*calloc_func)(size_t, size_t),
+        void (*free_func)(void *));
+#endif /* MBEDTLS_PLATFORM_FREE_MACRO && MBEDTLS_PLATFORM_CALLOC_MACRO */
+#else /* !MBEDTLS_PLATFORM_MEMORY */
+#define mbedtls_free       free
+#define mbedtls_calloc     calloc
+#endif /* MBEDTLS_PLATFORM_MEMORY && !MBEDTLS_PLATFORM_{FREE,CALLOC}_MACRO */
+
+/*
+ * The function pointers for fprintf
+ */
+#if defined(MBEDTLS_PLATFORM_FPRINTF_ALT)
+/* We need FILE * */
+#include <stdio.h>
+extern int (*mbedtls_fprintf)(FILE *stream, const char *format, ...);
+
+/**
+ * \brief   Set your own fprintf function pointer
+ *
+ * \param fprintf_func   the fprintf function implementation
+ *
+ * \return              0
+ */
+int mbedtls_platform_set_fprintf(int (*fprintf_func)(FILE *stream, const char *,
+        ...));
+#else
+#if defined(MBEDTLS_PLATFORM_FPRINTF_MACRO)
+#define mbedtls_fprintf    MBEDTLS_PLATFORM_FPRINTF_MACRO
+#else
+#define mbedtls_fprintf    fprintf
+#endif /* MBEDTLS_PLATFORM_FPRINTF_MACRO */
+#endif /* MBEDTLS_PLATFORM_FPRINTF_ALT */
+
+/*
+ * The function pointers for printf
+ */
+#if defined(MBEDTLS_PLATFORM_PRINTF_ALT)
+extern int (*mbedtls_printf)(const char *format, ...);
+
+/**
+ * \brief   Set your own printf function pointer
+ *
+ * \param printf_func   the printf function implementation
+ *
+ * \return              0
+ */
+int mbedtls_platform_set_printf(int (*printf_func)(const char *, ...));
+#else /* !MBEDTLS_PLATFORM_PRINTF_ALT */
+#if defined(MBEDTLS_PLATFORM_PRINTF_MACRO)
+#define mbedtls_printf     MBEDTLS_PLATFORM_PRINTF_MACRO
+#else
+#define mbedtls_printf     printf
+#endif /* MBEDTLS_PLATFORM_PRINTF_MACRO */
+#endif /* MBEDTLS_PLATFORM_PRINTF_ALT */
+
+/*
+ * The function pointers for snprintf
+ *
+ * The snprintf implementation should conform to C99:
+ * - it *must* always correctly zero-terminate the buffer
+ *   (except when n == 0, then it must leave the buffer untouched)
+ * - however it is acceptable to return -1 instead of the required length when
+ *   the destination buffer is too short.
+ */
+#if defined(_WIN32)
+/* For Windows (inc. MSYS2), we provide our own fixed implementation */
+int mbedtls_platform_win32_snprintf(char *s, size_t n, const char *fmt, ...);
+#endif
+
+#if defined(MBEDTLS_PLATFORM_SNPRINTF_ALT)
+extern int (*mbedtls_snprintf)(char *s, size_t n, const char *format, ...);
+
+/**
+ * \brief   Set your own snprintf function pointer
+ *
+ * \param snprintf_func   the snprintf function implementation
+ *
+ * \return              0
+ */
+int mbedtls_platform_set_snprintf(int (*snprintf_func)(char *s, size_t n,
+        const char *format, ...));
+#else /* MBEDTLS_PLATFORM_SNPRINTF_ALT */
+#if defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO)
+#define mbedtls_snprintf   MBEDTLS_PLATFORM_SNPRINTF_MACRO
+#else
+#define mbedtls_snprintf   snprintf
+#endif /* MBEDTLS_PLATFORM_SNPRINTF_MACRO */
+#endif /* MBEDTLS_PLATFORM_SNPRINTF_ALT */
+
+/*
+ * The function pointers for exit
+ */
+#if defined(MBEDTLS_PLATFORM_EXIT_ALT)
+extern void (*mbedtls_exit)(int status);
+
+/**
+ * \brief   Set your own exit function pointer
+ *
+ * \param exit_func   the exit function implementation
+ *
+ * \return              0
+ */
+int mbedtls_platform_set_exit(void (*exit_func)(int status));
+#else
+#if defined(MBEDTLS_PLATFORM_EXIT_MACRO)
+#define mbedtls_exit   MBEDTLS_PLATFORM_EXIT_MACRO
+#else
+#define mbedtls_exit   exit
+#endif /* MBEDTLS_PLATFORM_EXIT_MACRO */
+#endif /* MBEDTLS_PLATFORM_EXIT_ALT */
+
+/*
+ * The default exit values
+ */
+#if defined(MBEDTLS_PLATFORM_STD_EXIT_SUCCESS)
+#define MBEDTLS_EXIT_SUCCESS MBEDTLS_PLATFORM_STD_EXIT_SUCCESS
+#else
+#define MBEDTLS_EXIT_SUCCESS 0
+#endif
+#if defined(MBEDTLS_PLATFORM_STD_EXIT_FAILURE)
+#define MBEDTLS_EXIT_FAILURE MBEDTLS_PLATFORM_STD_EXIT_FAILURE
+#else
+#define MBEDTLS_EXIT_FAILURE 1
+#endif
+
+/*
+ * The function pointers for reading from and writing a seed file to
+ * Non-Volatile storage (NV) in a platform-independent way
+ *
+ * Only enabled when the NV seed entropy source is enabled
+ */
+#if defined(MBEDTLS_ENTROPY_NV_SEED)
+#if !defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS) && defined(MBEDTLS_FS_IO)
+/* Internal standard platform definitions */
+int mbedtls_platform_std_nv_seed_read(unsigned char *buf, size_t buf_len);
+int mbedtls_platform_std_nv_seed_write(unsigned char *buf, size_t buf_len);
+#endif
+
+#if defined(MBEDTLS_PLATFORM_NV_SEED_ALT)
+extern int (*mbedtls_nv_seed_read)(unsigned char *buf, size_t buf_len);
+extern int (*mbedtls_nv_seed_write)(unsigned char *buf, size_t buf_len);
+
+/**
+ * \brief   Set your own seed file writing/reading functions
+ *
+ * \param   nv_seed_read_func   the seed reading function implementation
+ * \param   nv_seed_write_func  the seed writing function implementation
+ *
+ * \return              0
+ */
+int mbedtls_platform_set_nv_seed(
+            int (*nv_seed_read_func)(unsigned char *buf, size_t buf_len),
+            int (*nv_seed_write_func)(unsigned char *buf, size_t buf_len)
+);
+#else
+#if defined(MBEDTLS_PLATFORM_NV_SEED_READ_MACRO) && \
+    defined(MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO)
+#define mbedtls_nv_seed_read    MBEDTLS_PLATFORM_NV_SEED_READ_MACRO
+#define mbedtls_nv_seed_write   MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO
+#else
+#define mbedtls_nv_seed_read    mbedtls_platform_std_nv_seed_read
+#define mbedtls_nv_seed_write   mbedtls_platform_std_nv_seed_write
+#endif
+#endif /* MBEDTLS_PLATFORM_NV_SEED_ALT */
+#endif /* MBEDTLS_ENTROPY_NV_SEED */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* platform.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/rsa.h

@@ -0,0 +1,635 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_RSA_H
+#define MBEDTLS_RSA_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#include "bignum.h"
+#include "md.h"
+
+#if defined(MBEDTLS_THREADING_C)
+    #include "threading.h"
+#endif
+
+/*
+ * RSA Error codes
+ */
+#define MBEDTLS_ERR_RSA_BAD_INPUT_DATA                    -0x4080  /**< Bad input parameters to function. */
+#define MBEDTLS_ERR_RSA_INVALID_PADDING                   -0x4100  /**< Input data contains invalid padding and is rejected. */
+#define MBEDTLS_ERR_RSA_KEY_GEN_FAILED                    -0x4180  /**< Something failed during generation of a key. */
+#define MBEDTLS_ERR_RSA_KEY_CHECK_FAILED                  -0x4200  /**< Key failed to pass the library's validity check. */
+#define MBEDTLS_ERR_RSA_PUBLIC_FAILED                     -0x4280  /**< The public key operation failed. */
+#define MBEDTLS_ERR_RSA_PRIVATE_FAILED                    -0x4300  /**< The private key operation failed. */
+#define MBEDTLS_ERR_RSA_VERIFY_FAILED                     -0x4380  /**< The PKCS#1 verification failed. */
+#define MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE                  -0x4400  /**< The output buffer for decryption is not large enough. */
+#define MBEDTLS_ERR_RSA_RNG_FAILED                        -0x4480  /**< The random generator failed to generate non-zeros. */
+
+/*
+ * RSA constants
+ */
+#define MBEDTLS_RSA_PUBLIC      0
+#define MBEDTLS_RSA_PRIVATE     1
+
+#define MBEDTLS_RSA_PKCS_V15    0
+#define MBEDTLS_RSA_PKCS_V21    1
+
+#define MBEDTLS_RSA_SIGN        1
+#define MBEDTLS_RSA_CRYPT       2
+
+#define MBEDTLS_RSA_SALT_LEN_ANY    -1
+
+/*
+ * The above constants may be used even if the RSA module is compile out,
+ * eg for alternative (PKCS#11) RSA implemenations in the PK layers.
+ */
+#if defined(MBEDTLS_RSA_C)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          RSA context structure
+ */
+typedef struct {
+    int ver;                    /*!<  always 0          */
+    size_t len;                 /*!<  size(N) in chars  */
+
+    mbedtls_mpi N;                      /*!<  public modulus    */
+    mbedtls_mpi E;                      /*!<  public exponent   */
+
+    mbedtls_mpi D;                      /*!<  private exponent  */
+    mbedtls_mpi P;                      /*!<  1st prime factor  */
+    mbedtls_mpi Q;                      /*!<  2nd prime factor  */
+    mbedtls_mpi DP;                     /*!<  D % (P - 1)       */
+    mbedtls_mpi DQ;                     /*!<  D % (Q - 1)       */
+    mbedtls_mpi QP;                     /*!<  1 / (Q % P)       */
+
+    mbedtls_mpi RN;                     /*!<  cached R^2 mod N  */
+    mbedtls_mpi RP;                     /*!<  cached R^2 mod P  */
+    mbedtls_mpi RQ;                     /*!<  cached R^2 mod Q  */
+
+    mbedtls_mpi Vi;                     /*!<  cached blinding value     */
+    mbedtls_mpi Vf;                     /*!<  cached un-blinding value  */
+
+    int padding;                /*!<  MBEDTLS_RSA_PKCS_V15 for 1.5 padding and
+                                      MBEDTLS_RSA_PKCS_v21 for OAEP/PSS         */
+    int hash_id;                /*!<  Hash identifier of mbedtls_md_type_t as
+                                      specified in the mbedtls_md.h header file
+                                      for the EME-OAEP and EMSA-PSS
+                                      encoding                          */
+#if defined(MBEDTLS_THREADING_C)
+    mbedtls_threading_mutex_t mutex;    /*!<  Thread-safety mutex       */
+#endif
+}
+mbedtls_rsa_context;
+
+/**
+ * \brief          Initialize an RSA context
+ *
+ *                 Note: Set padding to MBEDTLS_RSA_PKCS_V21 for the RSAES-OAEP
+ *                 encryption scheme and the RSASSA-PSS signature scheme.
+ *
+ * \param ctx      RSA context to be initialized
+ * \param padding  MBEDTLS_RSA_PKCS_V15 or MBEDTLS_RSA_PKCS_V21
+ * \param hash_id  MBEDTLS_RSA_PKCS_V21 hash identifier
+ *
+ * \note           The hash_id parameter is actually ignored
+ *                 when using MBEDTLS_RSA_PKCS_V15 padding.
+ *
+ * \note           Choice of padding mode is strictly enforced for private key
+ *                 operations, since there might be security concerns in
+ *                 mixing padding modes. For public key operations it's merely
+ *                 a default value, which can be overriden by calling specific
+ *                 rsa_rsaes_xxx or rsa_rsassa_xxx functions.
+ *
+ * \note           The chosen hash is always used for OEAP encryption.
+ *                 For PSS signatures, it's always used for making signatures,
+ *                 but can be overriden (and always is, if set to
+ *                 MBEDTLS_MD_NONE) for verifying them.
+ */
+void mbedtls_rsa_init(mbedtls_rsa_context *ctx,
+                                  int padding,
+                                  int hash_id);
+
+/**
+ * \brief          Set padding for an already initialized RSA context
+ *                 See \c mbedtls_rsa_init() for details.
+ *
+ * \param ctx      RSA context to be set
+ * \param padding  MBEDTLS_RSA_PKCS_V15 or MBEDTLS_RSA_PKCS_V21
+ * \param hash_id  MBEDTLS_RSA_PKCS_V21 hash identifier
+ */
+void mbedtls_rsa_set_padding(mbedtls_rsa_context *ctx, int padding, int hash_id);
+
+/**
+ * \brief          Generate an RSA keypair
+ *
+ * \param ctx      RSA context that will hold the key
+ * \param f_rng    RNG function
+ * \param p_rng    RNG parameter
+ * \param nbits    size of the public key in bits
+ * \param exponent public exponent (e.g., 65537)
+ *
+ * \note           mbedtls_rsa_init() must be called beforehand to setup
+ *                 the RSA context.
+ *
+ * \return         0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
+ */
+int mbedtls_rsa_gen_key(mbedtls_rsa_context *ctx,
+                                    int (*f_rng)(void *, unsigned char *, size_t),
+                                    void *p_rng,
+                                    unsigned int nbits, int exponent);
+
+/**
+ * \brief          Check a public RSA key
+ *
+ * \param ctx      RSA context to be checked
+ *
+ * \return         0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
+ */
+int mbedtls_rsa_check_pubkey(const mbedtls_rsa_context *ctx);
+
+/**
+ * \brief          Check a private RSA key
+ *
+ * \param ctx      RSA context to be checked
+ *
+ * \return         0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
+ */
+int mbedtls_rsa_check_privkey(const mbedtls_rsa_context *ctx);
+
+/**
+ * \brief          Check a public-private RSA key pair.
+ *                 Check each of the contexts, and make sure they match.
+ *
+ * \param pub      RSA context holding the public key
+ * \param prv      RSA context holding the private key
+ *
+ * \return         0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
+ */
+int mbedtls_rsa_check_pub_priv(const mbedtls_rsa_context *pub, const mbedtls_rsa_context *prv);
+
+/**
+ * \brief          Do an RSA public key operation
+ *
+ * \param ctx      RSA context
+ * \param input    input buffer
+ * \param output   output buffer
+ *
+ * \return         0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
+ *
+ * \note           This function does NOT take care of message
+ *                 padding. Also, be sure to set input[0] = 0 or ensure that
+ *                 input is smaller than N.
+ *
+ * \note           The input and output buffers must be large
+ *                 enough (eg. 128 bytes if RSA-1024 is used).
+ */
+int mbedtls_rsa_public(mbedtls_rsa_context *ctx,
+                                   const unsigned char *input,
+                                   unsigned char *output);
+
+/**
+ * \brief          Do an RSA private key operation
+ *
+ * \param ctx      RSA context
+ * \param f_rng    RNG function (Needed for blinding)
+ * \param p_rng    RNG parameter
+ * \param input    input buffer
+ * \param output   output buffer
+ *
+ * \return         0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
+ *
+ * \note           The input and output buffers must be large
+ *                 enough (eg. 128 bytes if RSA-1024 is used).
+ */
+int mbedtls_rsa_private(mbedtls_rsa_context *ctx,
+                                    int (*f_rng)(void *, unsigned char *, size_t),
+                                    void *p_rng,
+                                    const unsigned char *input,
+                                    unsigned char *output);
+
+/**
+ * \brief          Generic wrapper to perform a PKCS#1 encryption using the
+ *                 mode from the context. Add the message padding, then do an
+ *                 RSA operation.
+ *
+ * \param ctx      RSA context
+ * \param f_rng    RNG function (Needed for padding and PKCS#1 v2.1 encoding
+ *                               and MBEDTLS_RSA_PRIVATE)
+ * \param p_rng    RNG parameter
+ * \param mode     MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
+ * \param ilen     contains the plaintext length
+ * \param input    buffer holding the data to be encrypted
+ * \param output   buffer that will hold the ciphertext
+ *
+ * \return         0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
+ *
+ * \note           The output buffer must be as large as the size
+ *                 of ctx->N (eg. 128 bytes if RSA-1024 is used).
+ */
+int mbedtls_rsa_pkcs1_encrypt(mbedtls_rsa_context *ctx,
+        int (*f_rng)(void *, unsigned char *, size_t),
+        void *p_rng,
+        int mode, size_t ilen,
+        const unsigned char *input,
+        unsigned char *output);
+
+/**
+ * \brief          Perform a PKCS#1 v1.5 encryption (RSAES-PKCS1-v1_5-ENCRYPT)
+ *
+ * \param ctx      RSA context
+ * \param f_rng    RNG function (Needed for padding and MBEDTLS_RSA_PRIVATE)
+ * \param p_rng    RNG parameter
+ * \param mode     MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
+ * \param ilen     contains the plaintext length
+ * \param input    buffer holding the data to be encrypted
+ * \param output   buffer that will hold the ciphertext
+ *
+ * \return         0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
+ *
+ * \note           The output buffer must be as large as the size
+ *                 of ctx->N (eg. 128 bytes if RSA-1024 is used).
+ */
+int mbedtls_rsa_rsaes_pkcs1_v15_encrypt(mbedtls_rsa_context *ctx,
+        int (*f_rng)(void *, unsigned char *, size_t),
+        void *p_rng,
+        int mode, size_t ilen,
+        const unsigned char *input,
+        unsigned char *output);
+
+/**
+ * \brief          Perform a PKCS#1 v2.1 OAEP encryption (RSAES-OAEP-ENCRYPT)
+ *
+ * \param ctx      RSA context
+ * \param f_rng    RNG function (Needed for padding and PKCS#1 v2.1 encoding
+ *                               and MBEDTLS_RSA_PRIVATE)
+ * \param p_rng    RNG parameter
+ * \param mode     MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
+ * \param label    buffer holding the custom label to use
+ * \param label_len contains the label length
+ * \param ilen     contains the plaintext length
+ * \param input    buffer holding the data to be encrypted
+ * \param output   buffer that will hold the ciphertext
+ *
+ * \return         0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
+ *
+ * \note           The output buffer must be as large as the size
+ *                 of ctx->N (eg. 128 bytes if RSA-1024 is used).
+ */
+int mbedtls_rsa_rsaes_oaep_encrypt(mbedtls_rsa_context *ctx,
+        int (*f_rng)(void *, unsigned char *, size_t),
+        void *p_rng,
+        int mode,
+        const unsigned char *label, size_t label_len,
+        size_t ilen,
+        const unsigned char *input,
+        unsigned char *output);
+
+/**
+ * \brief          Generic wrapper to perform a PKCS#1 decryption using the
+ *                 mode from the context. Do an RSA operation, then remove
+ *                 the message padding
+ *
+ * \param ctx      RSA context
+ * \param f_rng    RNG function (Only needed for MBEDTLS_RSA_PRIVATE)
+ * \param p_rng    RNG parameter
+ * \param mode     MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
+ * \param olen     will contain the plaintext length
+ * \param input    buffer holding the encrypted data
+ * \param output   buffer that will hold the plaintext
+ * \param output_max_len    maximum length of the output buffer
+ *
+ * \return         0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
+ *
+ * \note           The output buffer must be as large as the size
+ *                 of ctx->N (eg. 128 bytes if RSA-1024 is used) otherwise
+ *                 an error is thrown.
+ */
+int mbedtls_rsa_pkcs1_decrypt(mbedtls_rsa_context *ctx,
+        int (*f_rng)(void *, unsigned char *, size_t),
+        void *p_rng,
+        int mode, size_t *olen,
+        const unsigned char *input,
+        unsigned char *output,
+        size_t output_max_len);
+
+/**
+ * \brief          Perform a PKCS#1 v1.5 decryption (RSAES-PKCS1-v1_5-DECRYPT)
+ *
+ * \param ctx      RSA context
+ * \param f_rng    RNG function (Only needed for MBEDTLS_RSA_PRIVATE)
+ * \param p_rng    RNG parameter
+ * \param mode     MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
+ * \param olen     will contain the plaintext length
+ * \param input    buffer holding the encrypted data
+ * \param output   buffer that will hold the plaintext
+ * \param output_max_len    maximum length of the output buffer
+ *
+ * \return         0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
+ *
+ * \note           The output buffer must be as large as the size
+ *                 of ctx->N (eg. 128 bytes if RSA-1024 is used) otherwise
+ *                 an error is thrown.
+ */
+int mbedtls_rsa_rsaes_pkcs1_v15_decrypt(mbedtls_rsa_context *ctx,
+        int (*f_rng)(void *, unsigned char *, size_t),
+        void *p_rng,
+        int mode, size_t *olen,
+        const unsigned char *input,
+        unsigned char *output,
+        size_t output_max_len);
+
+/**
+ * \brief          Perform a PKCS#1 v2.1 OAEP decryption (RSAES-OAEP-DECRYPT)
+ *
+ * \param ctx      RSA context
+ * \param f_rng    RNG function (Only needed for MBEDTLS_RSA_PRIVATE)
+ * \param p_rng    RNG parameter
+ * \param mode     MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
+ * \param label    buffer holding the custom label to use
+ * \param label_len contains the label length
+ * \param olen     will contain the plaintext length
+ * \param input    buffer holding the encrypted data
+ * \param output   buffer that will hold the plaintext
+ * \param output_max_len    maximum length of the output buffer
+ *
+ * \return         0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
+ *
+ * \note           The output buffer must be as large as the size
+ *                 of ctx->N (eg. 128 bytes if RSA-1024 is used) otherwise
+ *                 an error is thrown.
+ */
+int mbedtls_rsa_rsaes_oaep_decrypt(mbedtls_rsa_context *ctx,
+        int (*f_rng)(void *, unsigned char *, size_t),
+        void *p_rng,
+        int mode,
+        const unsigned char *label, size_t label_len,
+        size_t *olen,
+        const unsigned char *input,
+        unsigned char *output,
+        size_t output_max_len);
+
+/**
+ * \brief          Generic wrapper to perform a PKCS#1 signature using the
+ *                 mode from the context. Do a private RSA operation to sign
+ *                 a message digest
+ *
+ * \param ctx      RSA context
+ * \param f_rng    RNG function (Needed for PKCS#1 v2.1 encoding and for
+ *                               MBEDTLS_RSA_PRIVATE)
+ * \param p_rng    RNG parameter
+ * \param mode     MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
+ * \param md_alg   a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data)
+ * \param hashlen  message digest length (for MBEDTLS_MD_NONE only)
+ * \param hash     buffer holding the message digest
+ * \param sig      buffer that will hold the ciphertext
+ *
+ * \return         0 if the signing operation was successful,
+ *                 or an MBEDTLS_ERR_RSA_XXX error code
+ *
+ * \note           The "sig" buffer must be as large as the size
+ *                 of ctx->N (eg. 128 bytes if RSA-1024 is used).
+ *
+ * \note           In case of PKCS#1 v2.1 encoding, see comments on
+ * \note           \c mbedtls_rsa_rsassa_pss_sign() for details on md_alg and hash_id.
+ */
+int mbedtls_rsa_pkcs1_sign(mbedtls_rsa_context *ctx,
+                                       int (*f_rng)(void *, unsigned char *, size_t),
+                                       void *p_rng,
+                                       int mode,
+                                       mbedtls_md_type_t md_alg,
+                                       unsigned int hashlen,
+                                       const unsigned char *hash,
+                                       unsigned char *sig);
+
+/**
+ * \brief          Perform a PKCS#1 v1.5 signature (RSASSA-PKCS1-v1_5-SIGN)
+ *
+ * \param ctx      RSA context
+ * \param f_rng    RNG function (Only needed for MBEDTLS_RSA_PRIVATE)
+ * \param p_rng    RNG parameter
+ * \param mode     MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
+ * \param md_alg   a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data)
+ * \param hashlen  message digest length (for MBEDTLS_MD_NONE only)
+ * \param hash     buffer holding the message digest
+ * \param sig      buffer that will hold the ciphertext
+ *
+ * \return         0 if the signing operation was successful,
+ *                 or an MBEDTLS_ERR_RSA_XXX error code
+ *
+ * \note           The "sig" buffer must be as large as the size
+ *                 of ctx->N (eg. 128 bytes if RSA-1024 is used).
+ */
+int mbedtls_rsa_rsassa_pkcs1_v15_sign(mbedtls_rsa_context *ctx,
+        int (*f_rng)(void *, unsigned char *, size_t),
+        void *p_rng,
+        int mode,
+        mbedtls_md_type_t md_alg,
+        unsigned int hashlen,
+        const unsigned char *hash,
+        unsigned char *sig);
+
+/**
+ * \brief          Perform a PKCS#1 v2.1 PSS signature (RSASSA-PSS-SIGN)
+ *
+ * \param ctx      RSA context
+ * \param f_rng    RNG function (Needed for PKCS#1 v2.1 encoding and for
+ *                               MBEDTLS_RSA_PRIVATE)
+ * \param p_rng    RNG parameter
+ * \param mode     MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
+ * \param md_alg   a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data)
+ * \param hashlen  message digest length (for MBEDTLS_MD_NONE only)
+ * \param hash     buffer holding the message digest
+ * \param sig      buffer that will hold the ciphertext
+ *
+ * \return         0 if the signing operation was successful,
+ *                 or an MBEDTLS_ERR_RSA_XXX error code
+ *
+ * \note           The "sig" buffer must be as large as the size
+ *                 of ctx->N (eg. 128 bytes if RSA-1024 is used).
+ *
+ * \note           The hash_id in the RSA context is the one used for the
+ *                 encoding. md_alg in the function call is the type of hash
+ *                 that is encoded. According to RFC 3447 it is advised to
+ *                 keep both hashes the same.
+ */
+int mbedtls_rsa_rsassa_pss_sign(mbedtls_rsa_context *ctx,
+        int (*f_rng)(void *, unsigned char *, size_t),
+        void *p_rng,
+        int mode,
+        mbedtls_md_type_t md_alg,
+        unsigned int hashlen,
+        const unsigned char *hash,
+        unsigned char *sig);
+
+/**
+ * \brief          Generic wrapper to perform a PKCS#1 verification using the
+ *                 mode from the context. Do a public RSA operation and check
+ *                 the message digest
+ *
+ * \param ctx      points to an RSA public key
+ * \param f_rng    RNG function (Only needed for MBEDTLS_RSA_PRIVATE)
+ * \param p_rng    RNG parameter
+ * \param mode     MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
+ * \param md_alg   a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data)
+ * \param hashlen  message digest length (for MBEDTLS_MD_NONE only)
+ * \param hash     buffer holding the message digest
+ * \param sig      buffer holding the ciphertext
+ *
+ * \return         0 if the verify operation was successful,
+ *                 or an MBEDTLS_ERR_RSA_XXX error code
+ *
+ * \note           The "sig" buffer must be as large as the size
+ *                 of ctx->N (eg. 128 bytes if RSA-1024 is used).
+ *
+ * \note           In case of PKCS#1 v2.1 encoding, see comments on
+ *                 \c mbedtls_rsa_rsassa_pss_verify() about md_alg and hash_id.
+ */
+int mbedtls_rsa_pkcs1_verify(mbedtls_rsa_context *ctx,
+        int (*f_rng)(void *, unsigned char *, size_t),
+        void *p_rng,
+        int mode,
+        mbedtls_md_type_t md_alg,
+        unsigned int hashlen,
+        const unsigned char *hash,
+        const unsigned char *sig);
+
+/**
+ * \brief          Perform a PKCS#1 v1.5 verification (RSASSA-PKCS1-v1_5-VERIFY)
+ *
+ * \param ctx      points to an RSA public key
+ * \param f_rng    RNG function (Only needed for MBEDTLS_RSA_PRIVATE)
+ * \param p_rng    RNG parameter
+ * \param mode     MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
+ * \param md_alg   a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data)
+ * \param hashlen  message digest length (for MBEDTLS_MD_NONE only)
+ * \param hash     buffer holding the message digest
+ * \param sig      buffer holding the ciphertext
+ *
+ * \return         0 if the verify operation was successful,
+ *                 or an MBEDTLS_ERR_RSA_XXX error code
+ *
+ * \note           The "sig" buffer must be as large as the size
+ *                 of ctx->N (eg. 128 bytes if RSA-1024 is used).
+ */
+int mbedtls_rsa_rsassa_pkcs1_v15_verify(mbedtls_rsa_context *ctx,
+        int (*f_rng)(void *, unsigned char *, size_t),
+        void *p_rng,
+        int mode,
+        mbedtls_md_type_t md_alg,
+        unsigned int hashlen,
+        const unsigned char *hash,
+        const unsigned char *sig);
+
+/**
+ * \brief          Perform a PKCS#1 v2.1 PSS verification (RSASSA-PSS-VERIFY)
+ *                 (This is the "simple" version.)
+ *
+ * \param ctx      points to an RSA public key
+ * \param f_rng    RNG function (Only needed for MBEDTLS_RSA_PRIVATE)
+ * \param p_rng    RNG parameter
+ * \param mode     MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
+ * \param md_alg   a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data)
+ * \param hashlen  message digest length (for MBEDTLS_MD_NONE only)
+ * \param hash     buffer holding the message digest
+ * \param sig      buffer holding the ciphertext
+ *
+ * \return         0 if the verify operation was successful,
+ *                 or an MBEDTLS_ERR_RSA_XXX error code
+ *
+ * \note           The "sig" buffer must be as large as the size
+ *                 of ctx->N (eg. 128 bytes if RSA-1024 is used).
+ *
+ * \note           The hash_id in the RSA context is the one used for the
+ *                 verification. md_alg in the function call is the type of
+ *                 hash that is verified. According to RFC 3447 it is advised to
+ *                 keep both hashes the same. If hash_id in the RSA context is
+ *                 unset, the md_alg from the function call is used.
+ */
+int mbedtls_rsa_rsassa_pss_verify(mbedtls_rsa_context *ctx,
+        int (*f_rng)(void *, unsigned char *, size_t),
+        void *p_rng,
+        int mode,
+        mbedtls_md_type_t md_alg,
+        unsigned int hashlen,
+        const unsigned char *hash,
+        const unsigned char *sig);
+
+/**
+ * \brief          Perform a PKCS#1 v2.1 PSS verification (RSASSA-PSS-VERIFY)
+ *                 (This is the version with "full" options.)
+ *
+ * \param ctx      points to an RSA public key
+ * \param f_rng    RNG function (Only needed for MBEDTLS_RSA_PRIVATE)
+ * \param p_rng    RNG parameter
+ * \param mode     MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
+ * \param md_alg   a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data)
+ * \param hashlen  message digest length (for MBEDTLS_MD_NONE only)
+ * \param hash     buffer holding the message digest
+ * \param mgf1_hash_id message digest used for mask generation
+ * \param expected_salt_len Length of the salt used in padding, use
+ *                 MBEDTLS_RSA_SALT_LEN_ANY to accept any salt length
+ * \param sig      buffer holding the ciphertext
+ *
+ * \return         0 if the verify operation was successful,
+ *                 or an MBEDTLS_ERR_RSA_XXX error code
+ *
+ * \note           The "sig" buffer must be as large as the size
+ *                 of ctx->N (eg. 128 bytes if RSA-1024 is used).
+ *
+ * \note           The hash_id in the RSA context is ignored.
+ */
+int mbedtls_rsa_rsassa_pss_verify_ext(mbedtls_rsa_context *ctx,
+        int (*f_rng)(void *, unsigned char *, size_t),
+        void *p_rng,
+        int mode,
+        mbedtls_md_type_t md_alg,
+        unsigned int hashlen,
+        const unsigned char *hash,
+        mbedtls_md_type_t mgf1_hash_id,
+        int expected_salt_len,
+        const unsigned char *sig);
+
+/**
+ * \brief          Copy the components of an RSA context
+ *
+ * \param dst      Destination context
+ * \param src      Source context
+ *
+ * \return         0 on success,
+ *                 MBEDTLS_ERR_MPI_ALLOC_FAILED on memory allocation failure
+ */
+int mbedtls_rsa_copy(mbedtls_rsa_context *dst, const mbedtls_rsa_context *src);
+
+/**
+ * \brief          Free the components of an RSA key
+ *
+ * \param ctx      RSA Context to free
+ */
+void mbedtls_rsa_free(mbedtls_rsa_context *ctx);
+
+/**
+ * \brief          Checkup routine
+ *
+ * \return         0 if successful, or 1 if the test failed
+ */
+int mbedtls_rsa_self_test(int verbose);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* MBEDTLS_RSA_C */
+
+#endif /* rsa.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/sha1.h

@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_SHA1_H
+#define MBEDTLS_SHA1_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#include <stddef.h>
+#include <stdint.h>
+
+#if !defined(MBEDTLS_SHA1_ALT)
+// Regular implementation
+//
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          SHA-1 context structure
+ */
+typedef struct {
+    uint32_t total[2];          /*!< number of bytes processed  */
+    uint32_t state[5];          /*!< intermediate digest state  */
+    unsigned char buffer[64];   /*!< data block being processed */
+}
+mbedtls_sha1_context;
+
+/**
+ * \brief          Initialize SHA-1 context
+ *
+ * \param ctx      SHA-1 context to be initialized
+ */
+void mbedtls_sha1_init(mbedtls_sha1_context *ctx);
+
+/**
+ * \brief          Clear SHA-1 context
+ *
+ * \param ctx      SHA-1 context to be cleared
+ */
+void mbedtls_sha1_free(mbedtls_sha1_context *ctx);
+
+/**
+ * \brief          Clone (the state of) a SHA-1 context
+ *
+ * \param dst      The destination context
+ * \param src      The context to be cloned
+ */
+void mbedtls_sha1_clone(mbedtls_sha1_context *dst,
+                                    const mbedtls_sha1_context *src);
+
+/**
+ * \brief          SHA-1 context setup
+ *
+ * \param ctx      context to be initialized
+ */
+void mbedtls_sha1_starts(mbedtls_sha1_context *ctx);
+
+/**
+ * \brief          SHA-1 process buffer
+ *
+ * \param ctx      SHA-1 context
+ * \param input    buffer holding the  data
+ * \param ilen     length of the input data
+ */
+void mbedtls_sha1_update(mbedtls_sha1_context *ctx, const unsigned char *input, size_t ilen);
+
+/**
+ * \brief          SHA-1 final digest
+ *
+ * \param ctx      SHA-1 context
+ * \param output   SHA-1 checksum result
+ */
+void mbedtls_sha1_finish(mbedtls_sha1_context *ctx, unsigned char output[20]);
+
+/* Internal use */
+void mbedtls_sha1_process(mbedtls_sha1_context *ctx, const unsigned char data[64]);
+
+#ifdef __cplusplus
+}
+#endif
+
+#else  /* MBEDTLS_SHA1_ALT */
+#include "sha1_alt.h"
+#endif /* MBEDTLS_SHA1_ALT */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          Output = SHA-1( input buffer )
+ *
+ * \param input    buffer holding the  data
+ * \param ilen     length of the input data
+ * \param output   SHA-1 checksum result
+ */
+void mbedtls_sha1(const unsigned char *input, size_t ilen, unsigned char output[20]);
+
+/**
+ * \brief          Checkup routine
+ *
+ * \return         0 if successful, or 1 if the test failed
+ */
+int mbedtls_sha1_self_test(int verbose);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* mbedtls_sha1.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/sha256.h

@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_SHA256_H
+#define MBEDTLS_SHA256_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#include <stddef.h>
+#include <stdint.h>
+
+#if !defined(MBEDTLS_SHA256_ALT)
+// Regular implementation
+//
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          SHA-256 context structure
+ */
+typedef struct {
+    uint32_t total[2];          /*!< number of bytes processed  */
+    uint32_t state[8];          /*!< intermediate digest state  */
+    unsigned char buffer[64];   /*!< data block being processed */
+    int is224;                  /*!< 0 => SHA-256, else SHA-224 */
+}
+mbedtls_sha256_context;
+
+/**
+ * \brief          Initialize SHA-256 context
+ *
+ * \param ctx      SHA-256 context to be initialized
+ */
+void mbedtls_sha256_init(mbedtls_sha256_context *ctx);
+
+/**
+ * \brief          Clear SHA-256 context
+ *
+ * \param ctx      SHA-256 context to be cleared
+ */
+void mbedtls_sha256_free(mbedtls_sha256_context *ctx);
+
+/**
+ * \brief          Clone (the state of) a SHA-256 context
+ *
+ * \param dst      The destination context
+ * \param src      The context to be cloned
+ */
+void mbedtls_sha256_clone(mbedtls_sha256_context *dst,
+                                      const mbedtls_sha256_context *src);
+
+/**
+ * \brief          SHA-256 context setup
+ *
+ * \param ctx      context to be initialized
+ * \param is224    0 = use SHA256, 1 = use SHA224
+ */
+void mbedtls_sha256_starts(mbedtls_sha256_context *ctx, int is224);
+
+/**
+ * \brief          SHA-256 process buffer
+ *
+ * \param ctx      SHA-256 context
+ * \param input    buffer holding the  data
+ * \param ilen     length of the input data
+ */
+void mbedtls_sha256_update(mbedtls_sha256_context *ctx, const unsigned char *input,
+                                       size_t ilen);
+
+/**
+ * \brief          SHA-256 final digest
+ *
+ * \param ctx      SHA-256 context
+ * \param output   SHA-224/256 checksum result
+ */
+void mbedtls_sha256_finish(mbedtls_sha256_context *ctx, unsigned char output[32]);
+
+/* Internal use */
+void mbedtls_sha256_process(mbedtls_sha256_context *ctx, const unsigned char data[64]);
+
+#ifdef __cplusplus
+}
+#endif
+
+#else  /* MBEDTLS_SHA256_ALT */
+#include "sha256_alt.h"
+#endif /* MBEDTLS_SHA256_ALT */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          Output = SHA-256( input buffer )
+ *
+ * \param input    buffer holding the  data
+ * \param ilen     length of the input data
+ * \param output   SHA-224/256 checksum result
+ * \param is224    0 = use SHA256, 1 = use SHA224
+ */
+void mbedtls_sha256(const unsigned char *input, size_t ilen,
+                                unsigned char output[32], int is224);
+
+/**
+ * \brief          Checkup routine
+ *
+ * \return         0 if successful, or 1 if the test failed
+ */
+int mbedtls_sha256_self_test(int verbose);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* mbedtls_sha256.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/ssl_ciphersuites.h

@@ -0,0 +1,304 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_SSL_CIPHERSUITES_H
+#define MBEDTLS_SSL_CIPHERSUITES_H
+
+#include "pk.h"
+#include "cipher.h"
+#include "md.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Supported ciphersuites (Official IANA names)
+ */
+#define MBEDTLS_TLS_RSA_WITH_NULL_MD5                    0x01   /**< Weak! */
+#define MBEDTLS_TLS_RSA_WITH_NULL_SHA                    0x02   /**< Weak! */
+
+#define MBEDTLS_TLS_RSA_WITH_RC4_128_MD5                 0x04
+#define MBEDTLS_TLS_RSA_WITH_RC4_128_SHA                 0x05
+#define MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA                 0x09   /**< Weak! Not in TLS 1.2 */
+
+#define MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA            0x0A
+
+#define MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA             0x15   /**< Weak! Not in TLS 1.2 */
+#define MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA        0x16
+
+#define MBEDTLS_TLS_PSK_WITH_NULL_SHA                    0x2C   /**< Weak! */
+#define MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA                0x2D   /**< Weak! */
+#define MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA                0x2E   /**< Weak! */
+#define MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA             0x2F
+
+#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA         0x33
+#define MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA             0x35
+#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA         0x39
+
+#define MBEDTLS_TLS_RSA_WITH_NULL_SHA256                 0x3B   /**< Weak! */
+#define MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256          0x3C   /**< TLS 1.2 */
+#define MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256          0x3D   /**< TLS 1.2 */
+
+#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA        0x41
+#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA    0x45
+
+#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256      0x67   /**< TLS 1.2 */
+#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256      0x6B   /**< TLS 1.2 */
+
+#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA        0x84
+#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA    0x88
+
+#define MBEDTLS_TLS_PSK_WITH_RC4_128_SHA                 0x8A
+#define MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA            0x8B
+#define MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA             0x8C
+#define MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA             0x8D
+
+#define MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA             0x8E
+#define MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA        0x8F
+#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA         0x90
+#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA         0x91
+
+#define MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA             0x92
+#define MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA        0x93
+#define MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA         0x94
+#define MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA         0x95
+
+#define MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256          0x9C   /**< TLS 1.2 */
+#define MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384          0x9D   /**< TLS 1.2 */
+#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256      0x9E   /**< TLS 1.2 */
+#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384      0x9F   /**< TLS 1.2 */
+
+#define MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256          0xA8   /**< TLS 1.2 */
+#define MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384          0xA9   /**< TLS 1.2 */
+#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256      0xAA   /**< TLS 1.2 */
+#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384      0xAB   /**< TLS 1.2 */
+#define MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256      0xAC   /**< TLS 1.2 */
+#define MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384      0xAD   /**< TLS 1.2 */
+
+#define MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256          0xAE
+#define MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384          0xAF
+#define MBEDTLS_TLS_PSK_WITH_NULL_SHA256                 0xB0   /**< Weak! */
+#define MBEDTLS_TLS_PSK_WITH_NULL_SHA384                 0xB1   /**< Weak! */
+
+#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256      0xB2
+#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384      0xB3
+#define MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256             0xB4   /**< Weak! */
+#define MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384             0xB5   /**< Weak! */
+
+#define MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256      0xB6
+#define MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384      0xB7
+#define MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256             0xB8   /**< Weak! */
+#define MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384             0xB9   /**< Weak! */
+
+#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256     0xBA   /**< TLS 1.2 */
+#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 0xBE   /**< TLS 1.2 */
+
+#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256     0xC0   /**< TLS 1.2 */
+#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 0xC4   /**< TLS 1.2 */
+
+#define MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA             0xC001 /**< Weak! */
+#define MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA          0xC002 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA     0xC003 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA      0xC004 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA      0xC005 /**< Not in SSL3! */
+
+#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA            0xC006 /**< Weak! */
+#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA         0xC007 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA    0xC008 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA     0xC009 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA     0xC00A /**< Not in SSL3! */
+
+#define MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA               0xC00B /**< Weak! */
+#define MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA            0xC00C /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA       0xC00D /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA        0xC00E /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA        0xC00F /**< Not in SSL3! */
+
+#define MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA              0xC010 /**< Weak! */
+#define MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA           0xC011 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA      0xC012 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA       0xC013 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA       0xC014 /**< Not in SSL3! */
+
+#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256  0xC023 /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384  0xC024 /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256   0xC025 /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384   0xC026 /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256    0xC027 /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384    0xC028 /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256     0xC029 /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384     0xC02A /**< TLS 1.2 */
+
+#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256  0xC02B /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384  0xC02C /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256   0xC02D /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384   0xC02E /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256    0xC02F /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384    0xC030 /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256     0xC031 /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384     0xC032 /**< TLS 1.2 */
+
+#define MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA           0xC033 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA      0xC034 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA       0xC035 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA       0xC036 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256    0xC037 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384    0xC038 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA              0xC039 /**< Weak! No SSL3! */
+#define MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256           0xC03A /**< Weak! No SSL3! */
+#define MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384           0xC03B /**< Weak! No SSL3! */
+
+#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 0xC072 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 0xC073 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256  0xC074 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384  0xC075 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256   0xC076 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384   0xC077 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256    0xC078 /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384    0xC079 /**< Not in SSL3! */
+
+#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256         0xC07A /**< TLS 1.2 */
+#define MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384         0xC07B /**< TLS 1.2 */
+#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256     0xC07C /**< TLS 1.2 */
+#define MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384     0xC07D /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 0xC086 /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 0xC087 /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256  0xC088 /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384  0xC089 /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256   0xC08A /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384   0xC08B /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256    0xC08C /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384    0xC08D /**< TLS 1.2 */
+
+#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256       0xC08E /**< TLS 1.2 */
+#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384       0xC08F /**< TLS 1.2 */
+#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256   0xC090 /**< TLS 1.2 */
+#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384   0xC091 /**< TLS 1.2 */
+#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256   0xC092 /**< TLS 1.2 */
+#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384   0xC093 /**< TLS 1.2 */
+
+#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256       0xC094
+#define MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384       0xC095
+#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256   0xC096
+#define MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384   0xC097
+#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256   0xC098
+#define MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384   0xC099
+#define MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 0xC09A /**< Not in SSL3! */
+#define MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 0xC09B /**< Not in SSL3! */
+
+#define MBEDTLS_TLS_RSA_WITH_AES_128_CCM                0xC09C  /**< TLS 1.2 */
+#define MBEDTLS_TLS_RSA_WITH_AES_256_CCM                0xC09D  /**< TLS 1.2 */
+#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM            0xC09E  /**< TLS 1.2 */
+#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM            0xC09F  /**< TLS 1.2 */
+#define MBEDTLS_TLS_RSA_WITH_AES_128_CCM_8              0xC0A0  /**< TLS 1.2 */
+#define MBEDTLS_TLS_RSA_WITH_AES_256_CCM_8              0xC0A1  /**< TLS 1.2 */
+#define MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM_8          0xC0A2  /**< TLS 1.2 */
+#define MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM_8          0xC0A3  /**< TLS 1.2 */
+#define MBEDTLS_TLS_PSK_WITH_AES_128_CCM                0xC0A4  /**< TLS 1.2 */
+#define MBEDTLS_TLS_PSK_WITH_AES_256_CCM                0xC0A5  /**< TLS 1.2 */
+#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM            0xC0A6  /**< TLS 1.2 */
+#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM            0xC0A7  /**< TLS 1.2 */
+#define MBEDTLS_TLS_PSK_WITH_AES_128_CCM_8              0xC0A8  /**< TLS 1.2 */
+#define MBEDTLS_TLS_PSK_WITH_AES_256_CCM_8              0xC0A9  /**< TLS 1.2 */
+#define MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM_8          0xC0AA  /**< TLS 1.2 */
+#define MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM_8          0xC0AB  /**< TLS 1.2 */
+/* The last two are named with PSK_DHE in the RFC, which looks like a typo */
+
+#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM        0xC0AC  /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM        0xC0AD  /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8      0xC0AE  /**< TLS 1.2 */
+#define MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8      0xC0AF  /**< TLS 1.2 */
+
+#define MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8          0xC0FF  /**< experimental */
+
+/* Reminder: update mbedtls_ssl_premaster_secret when adding a new key exchange.
+ * Reminder: update MBEDTLS_KEY_EXCHANGE__xxx below
+ */
+typedef enum {
+    MBEDTLS_KEY_EXCHANGE_NONE = 0,
+    MBEDTLS_KEY_EXCHANGE_RSA,
+    MBEDTLS_KEY_EXCHANGE_DHE_RSA,
+    MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
+    MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
+    MBEDTLS_KEY_EXCHANGE_PSK,
+    MBEDTLS_KEY_EXCHANGE_DHE_PSK,
+    MBEDTLS_KEY_EXCHANGE_RSA_PSK,
+    MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
+    MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
+    MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
+    MBEDTLS_KEY_EXCHANGE_ECJPAKE,
+} mbedtls_key_exchange_type_t;
+
+/* Key exchanges using a certificate */
+#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)           || \
+    defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)       || \
+    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)     || \
+    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)   || \
+    defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)       || \
+    defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED)      || \
+    defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
+#define MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED
+#endif
+
+/* Key exchanges using a PSK */
+#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)           || \
+    defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)       || \
+    defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)       || \
+    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
+#define MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED
+#endif
+
+/* Key exchanges using a ECDHE */
+#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)     || \
+    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)   || \
+    defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
+#define MBEDTLS_KEY_EXCHANGE__SOME__ECDHE_ENABLED
+#endif
+
+typedef struct mbedtls_ssl_ciphersuite_t mbedtls_ssl_ciphersuite_t;
+
+#define MBEDTLS_CIPHERSUITE_WEAK       0x01    /**< Weak ciphersuite flag  */
+#define MBEDTLS_CIPHERSUITE_SHORT_TAG  0x02    /**< Short authentication tag,
+                                                     eg for CCM_8 */
+#define MBEDTLS_CIPHERSUITE_NODTLS     0x04    /**< Can't be used with DTLS */
+
+/**
+ * \brief   This structure is used for storing ciphersuite information
+ */
+struct mbedtls_ssl_ciphersuite_t {
+    int id;
+    const char *name;
+
+    mbedtls_cipher_type_t cipher;
+    mbedtls_md_type_t mac;
+    mbedtls_key_exchange_type_t key_exchange;
+
+    int min_major_ver;
+    int min_minor_ver;
+    int max_major_ver;
+    int max_minor_ver;
+
+    unsigned char flags;
+};
+
+const int *mbedtls_ssl_list_ciphersuites(void);
+
+const mbedtls_ssl_ciphersuite_t *mbedtls_ssl_ciphersuite_from_string(const char *ciphersuite_name);
+const mbedtls_ssl_ciphersuite_t *mbedtls_ssl_ciphersuite_from_id(int ciphersuite_id);
+
+#if defined(MBEDTLS_PK_C)
+mbedtls_pk_type_t mbedtls_ssl_get_ciphersuite_sig_pk_alg(const mbedtls_ssl_ciphersuite_t *info);
+#endif
+
+int mbedtls_ssl_ciphersuite_uses_ec(const mbedtls_ssl_ciphersuite_t *info);
+int mbedtls_ssl_ciphersuite_uses_psk(const mbedtls_ssl_ciphersuite_t *info);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ssl_ciphersuites.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/ssl_cookie.h

@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_SSL_COOKIE_H
+#define MBEDTLS_SSL_COOKIE_H
+
+#include "ssl.h"
+
+#if defined(MBEDTLS_THREADING_C)
+    #include "threading.h"
+#endif
+
+/**
+ * \name SECTION: Module settings
+ *
+ * The configuration options you can set for this module are in this section.
+ * Either change them in config.h or define them on the compiler command line.
+ * \{
+ */
+#ifndef MBEDTLS_SSL_COOKIE_TIMEOUT
+    #define MBEDTLS_SSL_COOKIE_TIMEOUT     60 /**< Default expiration delay of DTLS cookies, in seconds if HAVE_TIME, or in number of cookies issued */
+#endif
+
+/* \} name SECTION: Module settings */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          Context for the default cookie functions.
+ */
+typedef struct {
+    mbedtls_md_context_t    hmac_ctx;   /*!< context for the HMAC portion   */
+#if !defined(MBEDTLS_HAVE_TIME)
+    unsigned long   serial;     /*!< serial number for expiration   */
+#endif
+    unsigned long   timeout;    /*!< timeout delay, in seconds if HAVE_TIME,
+                                     or in number of tickets issued */
+
+#if defined(MBEDTLS_THREADING_C)
+    mbedtls_threading_mutex_t mutex;
+#endif
+} mbedtls_ssl_cookie_ctx;
+
+/**
+ * \brief          Initialize cookie context
+ */
+void mbedtls_ssl_cookie_init(mbedtls_ssl_cookie_ctx *ctx);
+
+/**
+ * \brief          Setup cookie context (generate keys)
+ */
+int mbedtls_ssl_cookie_setup(mbedtls_ssl_cookie_ctx *ctx,
+        int (*f_rng)(void *, unsigned char *, size_t),
+        void *p_rng);
+
+/**
+ * \brief          Set expiration delay for cookies
+ *                 (Default MBEDTLS_SSL_COOKIE_TIMEOUT)
+ *
+ * \param ctx      Cookie contex
+ * \param delay    Delay, in seconds if HAVE_TIME, or in number of cookies
+ *                 issued in the meantime.
+ *                 0 to disable expiration (NOT recommended)
+ */
+void mbedtls_ssl_cookie_set_timeout(mbedtls_ssl_cookie_ctx *ctx, unsigned long delay);
+
+/**
+ * \brief          Free cookie context
+ */
+void mbedtls_ssl_cookie_free(mbedtls_ssl_cookie_ctx *ctx);
+
+/**
+ * \brief          Generate cookie, see \c mbedtls_ssl_cookie_write_t
+ */
+mbedtls_ssl_cookie_write_t mbedtls_ssl_cookie_write;
+
+/**
+ * \brief          Verify cookie, see \c mbedtls_ssl_cookie_write_t
+ */
+mbedtls_ssl_cookie_check_t mbedtls_ssl_cookie_check;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ssl_cookie.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/ssl_internal.h

@@ -0,0 +1,485 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_SSL_INTERNAL_H
+#define MBEDTLS_SSL_INTERNAL_H
+
+#include "ssl.h"
+
+#if defined(MBEDTLS_MD5_C)
+    #include "md5.h"
+#endif
+
+#if defined(MBEDTLS_SHA1_C)
+    #include "sha1.h"
+#endif
+
+#if defined(MBEDTLS_SHA256_C)
+    #include "sha256.h"
+#endif
+
+#if defined(MBEDTLS_SHA512_C)
+    #include "sha512.h"
+#endif
+
+#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
+    #include "ecjpake.h"
+#endif
+
+#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
+    !defined(inline) && !defined(__cplusplus)
+    #define inline __inline
+#endif
+
+/* Determine minimum supported version */
+#define MBEDTLS_SSL_MIN_MAJOR_VERSION           MBEDTLS_SSL_MAJOR_VERSION_3
+
+#if defined(MBEDTLS_SSL_PROTO_SSL3)
+    #define MBEDTLS_SSL_MIN_MINOR_VERSION           MBEDTLS_SSL_MINOR_VERSION_0
+#else
+    #if defined(MBEDTLS_SSL_PROTO_TLS1)
+        #define MBEDTLS_SSL_MIN_MINOR_VERSION           MBEDTLS_SSL_MINOR_VERSION_1
+    #else
+        #if defined(MBEDTLS_SSL_PROTO_TLS1_1)
+            #define MBEDTLS_SSL_MIN_MINOR_VERSION           MBEDTLS_SSL_MINOR_VERSION_2
+        #else
+            #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
+                #define MBEDTLS_SSL_MIN_MINOR_VERSION           MBEDTLS_SSL_MINOR_VERSION_3
+            #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
+        #endif /* MBEDTLS_SSL_PROTO_TLS1_1 */
+    #endif /* MBEDTLS_SSL_PROTO_TLS1   */
+#endif /* MBEDTLS_SSL_PROTO_SSL3   */
+
+/* Determine maximum supported version */
+#define MBEDTLS_SSL_MAX_MAJOR_VERSION           MBEDTLS_SSL_MAJOR_VERSION_3
+
+#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
+    #define MBEDTLS_SSL_MAX_MINOR_VERSION           MBEDTLS_SSL_MINOR_VERSION_3
+#else
+    #if defined(MBEDTLS_SSL_PROTO_TLS1_1)
+        #define MBEDTLS_SSL_MAX_MINOR_VERSION           MBEDTLS_SSL_MINOR_VERSION_2
+    #else
+        #if defined(MBEDTLS_SSL_PROTO_TLS1)
+            #define MBEDTLS_SSL_MAX_MINOR_VERSION           MBEDTLS_SSL_MINOR_VERSION_1
+        #else
+            #if defined(MBEDTLS_SSL_PROTO_SSL3)
+                #define MBEDTLS_SSL_MAX_MINOR_VERSION           MBEDTLS_SSL_MINOR_VERSION_0
+            #endif /* MBEDTLS_SSL_PROTO_SSL3   */
+        #endif /* MBEDTLS_SSL_PROTO_TLS1   */
+    #endif /* MBEDTLS_SSL_PROTO_TLS1_1 */
+#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
+
+#define MBEDTLS_SSL_INITIAL_HANDSHAKE           0
+#define MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS   1   /* In progress */
+#define MBEDTLS_SSL_RENEGOTIATION_DONE          2   /* Done or aborted */
+#define MBEDTLS_SSL_RENEGOTIATION_PENDING       3   /* Requested (server only) */
+
+/*
+ * DTLS retransmission states, see RFC 6347 4.2.4
+ *
+ * The SENDING state is merged in PREPARING for initial sends,
+ * but is distinct for resends.
+ *
+ * Note: initial state is wrong for server, but is not used anyway.
+ */
+#define MBEDTLS_SSL_RETRANS_PREPARING       0
+#define MBEDTLS_SSL_RETRANS_SENDING         1
+#define MBEDTLS_SSL_RETRANS_WAITING         2
+#define MBEDTLS_SSL_RETRANS_FINISHED        3
+
+/*
+ * Allow extra bytes for record, authentication and encryption overhead:
+ * counter (8) + header (5) + IV(16) + MAC (16-48) + padding (0-256)
+ * and allow for a maximum of 1024 of compression expansion if
+ * enabled.
+ */
+#if defined(MBEDTLS_ZLIB_SUPPORT)
+    #define MBEDTLS_SSL_COMPRESSION_ADD          1024
+#else
+    #define MBEDTLS_SSL_COMPRESSION_ADD             0
+#endif
+
+#if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_MODE_CBC)
+    /* Ciphersuites using HMAC */
+    #if defined(MBEDTLS_SHA512_C)
+        #define MBEDTLS_SSL_MAC_ADD                 48  /* SHA-384 used for HMAC */
+    #elif defined(MBEDTLS_SHA256_C)
+        #define MBEDTLS_SSL_MAC_ADD                 32  /* SHA-256 used for HMAC */
+    #else
+        #define MBEDTLS_SSL_MAC_ADD                 20  /* SHA-1   used for HMAC */
+    #endif
+#else
+    /* AEAD ciphersuites: GCM and CCM use a 128 bits tag */
+    #define MBEDTLS_SSL_MAC_ADD                 16
+#endif
+
+#if defined(MBEDTLS_CIPHER_MODE_CBC)
+    #define MBEDTLS_SSL_PADDING_ADD            256
+#else
+    #define MBEDTLS_SSL_PADDING_ADD              0
+#endif
+
+#define MBEDTLS_SSL_BUFFER_LEN  ( MBEDTLS_SSL_MAX_CONTENT_LEN               \
+                                  + MBEDTLS_SSL_COMPRESSION_ADD               \
+                                  + 29 /* counter + header + IV */    \
+                                  + MBEDTLS_SSL_MAC_ADD                       \
+                                  + MBEDTLS_SSL_PADDING_ADD                   \
+                                )
+
+/*
+ * TLS extension flags (for extensions with outgoing ServerHello content
+ * that need it (e.g. for RENEGOTIATION_INFO the server already knows because
+ * of state of the renegotiation flag, so no indicator is required)
+ */
+#define MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS_PRESENT (1 << 0)
+#define MBEDTLS_TLS_EXT_ECJPAKE_KKPP_OK                 (1 << 1)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * This structure contains the parameters only needed during handshake.
+ */
+struct mbedtls_ssl_handshake_params {
+    /*
+     * Handshake specific crypto variables
+     */
+    int sig_alg;                        /*!<  Hash algorithm for signature   */
+    int verify_sig_alg;                 /*!<  Signature algorithm for verify */
+#if defined(MBEDTLS_DHM_C)
+    mbedtls_dhm_context dhm_ctx;                /*!<  DHM key exchange        */
+#endif
+#if defined(MBEDTLS_ECDH_C)
+    mbedtls_ecdh_context ecdh_ctx;              /*!<  ECDH key exchange       */
+#endif
+#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
+    mbedtls_ecjpake_context ecjpake_ctx;        /*!< EC J-PAKE key exchange */
+#if defined(MBEDTLS_SSL_CLI_C)
+    unsigned char *ecjpake_cache;               /*!< Cache for ClientHello ext */
+    size_t ecjpake_cache_len;                   /*!< Length of cached data */
+#endif
+#endif
+#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
+    defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
+    const mbedtls_ecp_curve_info **curves;      /*!<  Supported elliptic curves */
+#endif
+#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
+    unsigned char *psk;                 /*!<  PSK from the callback         */
+    size_t psk_len;                     /*!<  Length of PSK from callback   */
+#endif
+#if defined(MBEDTLS_X509_CRT_PARSE_C)
+    mbedtls_ssl_key_cert *key_cert;     /*!< chosen key/cert pair (server)  */
+#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
+    int sni_authmode;                   /*!< authmode from SNI callback     */
+    mbedtls_ssl_key_cert *sni_key_cert; /*!< key/cert list from SNI         */
+    mbedtls_x509_crt *sni_ca_chain;     /*!< trusted CAs from SNI callback  */
+    mbedtls_x509_crl *sni_ca_crl;       /*!< trusted CAs CRLs from SNI      */
+#endif
+#endif /* MBEDTLS_X509_CRT_PARSE_C */
+#if defined(MBEDTLS_SSL_PROTO_DTLS)
+    unsigned int out_msg_seq;           /*!<  Outgoing handshake sequence number */
+    unsigned int in_msg_seq;            /*!<  Incoming handshake sequence number */
+
+    unsigned char *verify_cookie;       /*!<  Cli: HelloVerifyRequest cookie
+                                              Srv: unused                    */
+    unsigned char verify_cookie_len;    /*!<  Cli: cookie length
+                                              Srv: flag for sending a cookie */
+
+    unsigned char *hs_msg;              /*!<  Reassembled handshake message  */
+
+    uint32_t retransmit_timeout;        /*!<  Current value of timeout       */
+    unsigned char retransmit_state;     /*!<  Retransmission state           */
+    mbedtls_ssl_flight_item *flight;            /*!<  Current outgoing flight        */
+    mbedtls_ssl_flight_item *cur_msg;           /*!<  Current message in flight      */
+    unsigned int in_flight_start_seq;   /*!<  Minimum message sequence in the
+                                              flight being received          */
+    mbedtls_ssl_transform *alt_transform_out;   /*!<  Alternative transform for
+                                              resending messages             */
+    unsigned char alt_out_ctr[8];       /*!<  Alternative record epoch/counter
+                                              for resending messages         */
+#endif
+
+    /*
+     * Checksum contexts
+     */
+#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
+    defined(MBEDTLS_SSL_PROTO_TLS1_1)
+    mbedtls_md5_context fin_md5;
+    mbedtls_sha1_context fin_sha1;
+#endif
+#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
+#if defined(MBEDTLS_SHA256_C)
+    mbedtls_sha256_context fin_sha256;
+#endif
+#if defined(MBEDTLS_SHA512_C)
+    mbedtls_sha512_context fin_sha512;
+#endif
+#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
+
+    void (*update_checksum)(mbedtls_ssl_context *, const unsigned char *, size_t);
+    void (*calc_verify)(mbedtls_ssl_context *, unsigned char *);
+    void (*calc_finished)(mbedtls_ssl_context *, unsigned char *, int);
+    int (*tls_prf)(const unsigned char *, size_t, const char *,
+                   const unsigned char *, size_t,
+                   unsigned char *, size_t);
+
+    size_t pmslen;                      /*!<  premaster length        */
+
+    unsigned char randbytes[64];        /*!<  random bytes            */
+    unsigned char premaster[MBEDTLS_PREMASTER_SIZE];
+    /*!<  premaster secret        */
+
+    int resume;                         /*!<  session resume indicator*/
+    int max_major_ver;                  /*!< max. major version client*/
+    int max_minor_ver;                  /*!< max. minor version client*/
+    int cli_exts;                       /*!< client extension presence*/
+
+#if defined(MBEDTLS_SSL_SESSION_TICKETS)
+    int new_session_ticket;             /*!< use NewSessionTicket?    */
+#endif /* MBEDTLS_SSL_SESSION_TICKETS */
+#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
+    int extended_ms;                    /*!< use Extended Master Secret? */
+#endif
+};
+
+/*
+ * This structure contains a full set of runtime transform parameters
+ * either in negotiation or active.
+ */
+struct mbedtls_ssl_transform {
+    /*
+     * Session specific crypto layer
+     */
+    const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
+    /*!<  Chosen cipersuite_info  */
+    unsigned int keylen;                /*!<  symmetric key length (bytes)  */
+    size_t minlen;                      /*!<  min. ciphertext length  */
+    size_t ivlen;                       /*!<  IV length               */
+    size_t fixed_ivlen;                 /*!<  Fixed part of IV (AEAD) */
+    size_t maclen;                      /*!<  MAC length              */
+
+    unsigned char iv_enc[16];           /*!<  IV (encryption)         */
+    unsigned char iv_dec[16];           /*!<  IV (decryption)         */
+
+#if defined(MBEDTLS_SSL_PROTO_SSL3)
+    /* Needed only for SSL v3.0 secret */
+    unsigned char mac_enc[20];          /*!<  SSL v3.0 secret (enc)   */
+    unsigned char mac_dec[20];          /*!<  SSL v3.0 secret (dec)   */
+#endif /* MBEDTLS_SSL_PROTO_SSL3 */
+
+    mbedtls_md_context_t md_ctx_enc;            /*!<  MAC (encryption)        */
+    mbedtls_md_context_t md_ctx_dec;            /*!<  MAC (decryption)        */
+
+    mbedtls_cipher_context_t cipher_ctx_enc;    /*!<  encryption context      */
+    mbedtls_cipher_context_t cipher_ctx_dec;    /*!<  decryption context      */
+
+    /*
+     * Session specific compression layer
+     */
+#if defined(MBEDTLS_ZLIB_SUPPORT)
+    z_stream ctx_deflate;               /*!<  compression context     */
+    z_stream ctx_inflate;               /*!<  decompression context   */
+#endif
+};
+
+#if defined(MBEDTLS_X509_CRT_PARSE_C)
+/*
+ * List of certificate + private key pairs
+ */
+struct mbedtls_ssl_key_cert {
+    mbedtls_x509_crt *cert;                 /*!< cert                       */
+    mbedtls_pk_context *key;                /*!< private key                */
+    mbedtls_ssl_key_cert *next;             /*!< next key/cert pair         */
+};
+#endif /* MBEDTLS_X509_CRT_PARSE_C */
+
+#if defined(MBEDTLS_SSL_PROTO_DTLS)
+/*
+ * List of handshake messages kept around for resending
+ */
+struct mbedtls_ssl_flight_item {
+    unsigned char *p;       /*!< message, including handshake headers   */
+    size_t len;             /*!< length of p                            */
+    unsigned char type;     /*!< type of the message: handshake or CCS  */
+    mbedtls_ssl_flight_item *next;  /*!< next handshake message(s)              */
+};
+#endif /* MBEDTLS_SSL_PROTO_DTLS */
+
+
+/**
+ * \brief           Free referenced items in an SSL transform context and clear
+ *                  memory
+ *
+ * \param transform SSL transform context
+ */
+void mbedtls_ssl_transform_free(mbedtls_ssl_transform *transform);
+
+/**
+ * \brief           Free referenced items in an SSL handshake context and clear
+ *                  memory
+ *
+ * \param handshake SSL handshake context
+ */
+void mbedtls_ssl_handshake_free(mbedtls_ssl_handshake_params *handshake);
+
+int mbedtls_ssl_handshake_client_step(mbedtls_ssl_context *ssl);
+int mbedtls_ssl_handshake_server_step(mbedtls_ssl_context *ssl);
+void mbedtls_ssl_handshake_wrapup(mbedtls_ssl_context *ssl);
+
+int mbedtls_ssl_send_fatal_handshake_failure(mbedtls_ssl_context *ssl);
+
+void mbedtls_ssl_reset_checksum(mbedtls_ssl_context *ssl);
+int mbedtls_ssl_derive_keys(mbedtls_ssl_context *ssl);
+
+int mbedtls_ssl_read_record_layer(mbedtls_ssl_context *ssl);
+int mbedtls_ssl_handle_message_type(mbedtls_ssl_context *ssl);
+int mbedtls_ssl_prepare_handshake_record(mbedtls_ssl_context *ssl);
+void mbedtls_ssl_update_handshake_status(mbedtls_ssl_context *ssl);
+
+int mbedtls_ssl_read_record(mbedtls_ssl_context *ssl);
+int mbedtls_ssl_fetch_input(mbedtls_ssl_context *ssl, size_t nb_want);
+
+int mbedtls_ssl_write_record(mbedtls_ssl_context *ssl);
+int mbedtls_ssl_flush_output(mbedtls_ssl_context *ssl);
+
+int mbedtls_ssl_parse_certificate(mbedtls_ssl_context *ssl);
+int mbedtls_ssl_write_certificate(mbedtls_ssl_context *ssl);
+
+int mbedtls_ssl_parse_change_cipher_spec(mbedtls_ssl_context *ssl);
+int mbedtls_ssl_write_change_cipher_spec(mbedtls_ssl_context *ssl);
+
+int mbedtls_ssl_parse_finished(mbedtls_ssl_context *ssl);
+int mbedtls_ssl_write_finished(mbedtls_ssl_context *ssl);
+
+void mbedtls_ssl_optimize_checksum(mbedtls_ssl_context *ssl,
+        const mbedtls_ssl_ciphersuite_t *ciphersuite_info);
+
+#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
+int mbedtls_ssl_psk_derive_premaster(mbedtls_ssl_context *ssl, mbedtls_key_exchange_type_t key_ex);
+#endif
+
+#if defined(MBEDTLS_PK_C)
+unsigned char mbedtls_ssl_sig_from_pk(mbedtls_pk_context *pk);
+mbedtls_pk_type_t mbedtls_ssl_pk_alg_from_sig(unsigned char sig);
+#endif
+
+mbedtls_md_type_t mbedtls_ssl_md_alg_from_hash(unsigned char hash);
+unsigned char mbedtls_ssl_hash_from_md_alg(int md);
+int mbedtls_ssl_set_calc_verify_md(mbedtls_ssl_context *ssl, int md);
+
+#if defined(MBEDTLS_ECP_C)
+int mbedtls_ssl_check_curve(const mbedtls_ssl_context *ssl, mbedtls_ecp_group_id grp_id);
+#endif
+
+#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
+int mbedtls_ssl_check_sig_hash(const mbedtls_ssl_context *ssl,
+        mbedtls_md_type_t md);
+#endif
+
+#if defined(MBEDTLS_X509_CRT_PARSE_C)
+static inline mbedtls_pk_context *mbedtls_ssl_own_key(mbedtls_ssl_context *ssl)
+{
+    mbedtls_ssl_key_cert *key_cert;
+
+    if (ssl->handshake != NULL && ssl->handshake->key_cert != NULL) {
+        key_cert = ssl->handshake->key_cert;
+    } else {
+        key_cert = ssl->conf->key_cert;
+    }
+
+    return (key_cert == NULL ? NULL : key_cert->key);
+}
+
+static inline mbedtls_x509_crt *mbedtls_ssl_own_cert(mbedtls_ssl_context *ssl)
+{
+    mbedtls_ssl_key_cert *key_cert;
+
+    if (ssl->handshake != NULL && ssl->handshake->key_cert != NULL) {
+        key_cert = ssl->handshake->key_cert;
+    } else {
+        key_cert = ssl->conf->key_cert;
+    }
+
+    return (key_cert == NULL ? NULL : key_cert->cert);
+}
+
+/*
+ * Check usage of a certificate wrt extensions:
+ * keyUsage, extendedKeyUsage (later), and nSCertType (later).
+ *
+ * Warning: cert_endpoint is the endpoint of the cert (ie, of our peer when we
+ * check a cert we received from them)!
+ *
+ * Return 0 if everything is OK, -1 if not.
+ */
+int mbedtls_ssl_check_cert_usage(const mbedtls_x509_crt *cert,
+        const mbedtls_ssl_ciphersuite_t *ciphersuite,
+        int cert_endpoint,
+        uint32_t *flags);
+#endif /* MBEDTLS_X509_CRT_PARSE_C */
+
+void mbedtls_ssl_write_version(int major, int minor, int transport,
+        unsigned char ver[2]);
+void mbedtls_ssl_read_version(int *major, int *minor, int transport,
+        const unsigned char ver[2]);
+
+static inline size_t mbedtls_ssl_hdr_len(const mbedtls_ssl_context *ssl)
+{
+#if defined(MBEDTLS_SSL_PROTO_DTLS)
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+        return (13);
+    }
+#else
+    ((void) ssl);
+#endif
+    return (5);
+}
+
+static inline size_t mbedtls_ssl_hs_hdr_len(const mbedtls_ssl_context *ssl)
+{
+#if defined(MBEDTLS_SSL_PROTO_DTLS)
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+        return (12);
+    }
+#else
+    ((void) ssl);
+#endif
+    return (4);
+}
+
+#if defined(MBEDTLS_SSL_PROTO_DTLS)
+void mbedtls_ssl_send_flight_completed(mbedtls_ssl_context *ssl);
+void mbedtls_ssl_recv_flight_completed(mbedtls_ssl_context *ssl);
+int mbedtls_ssl_resend(mbedtls_ssl_context *ssl);
+#endif
+
+/* Visible for testing purposes only */
+#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
+int mbedtls_ssl_dtls_replay_check(mbedtls_ssl_context *ssl);
+void mbedtls_ssl_dtls_replay_update(mbedtls_ssl_context *ssl);
+#endif
+
+/* constant-time buffer comparison */
+static inline int mbedtls_ssl_safer_memcmp(const void *a, const void *b, size_t n)
+{
+    size_t i;
+    const unsigned char *A = (const unsigned char *) a;
+    const unsigned char *B = (const unsigned char *) b;
+    unsigned char diff = 0;
+
+    for (i = 0; i < n; i++) {
+        diff |= A[i] ^ B[i];
+    }
+
+    return (diff);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ssl_internal.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/timing.h

@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_TIMING_H
+#define MBEDTLS_TIMING_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#if !defined(MBEDTLS_TIMING_ALT)
+// Regular implementation
+//
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief          timer structure
+ */
+struct mbedtls_timing_hr_time {
+    unsigned char opaque[32];
+};
+
+/**
+ * \brief          Context for mbedtls_timing_set/get_delay()
+ */
+typedef struct {
+    struct mbedtls_timing_hr_time   timer;
+    uint32_t                        int_ms;
+    uint32_t                        fin_ms;
+} mbedtls_timing_delay_context;
+
+extern volatile int mbedtls_timing_alarmed;
+
+/**
+ * \brief          Return the CPU cycle counter value
+ *
+ * \warning        This is only a best effort! Do not rely on this!
+ *                 In particular, it is known to be unreliable on virtual
+ *                 machines.
+ */
+unsigned long mbedtls_timing_hardclock(void);
+
+/**
+ * \brief          Return the elapsed time in milliseconds
+ *
+ * \param val      points to a timer structure
+ * \param reset    if set to 1, the timer is restarted
+ */
+unsigned long mbedtls_timing_get_timer(struct mbedtls_timing_hr_time *val, int reset);
+
+/**
+ * \brief          Setup an alarm clock
+ *
+ * \param seconds  delay before the "mbedtls_timing_alarmed" flag is set
+ *
+ * \warning        Only one alarm at a time  is supported. In a threaded
+ *                 context, this means one for the whole process, not one per
+ *                 thread.
+ */
+void mbedtls_set_alarm(int seconds);
+
+/**
+ * \brief          Set a pair of delays to watch
+ *                 (See \c mbedtls_timing_get_delay().)
+ *
+ * \param data     Pointer to timing data
+ *                 Must point to a valid \c mbedtls_timing_delay_context struct.
+ * \param int_ms   First (intermediate) delay in milliseconds.
+ * \param fin_ms   Second (final) delay in milliseconds.
+ *                 Pass 0 to cancel the current delay.
+ */
+void mbedtls_timing_set_delay(void *data, uint32_t int_ms, uint32_t fin_ms);
+
+/**
+ * \brief          Get the status of delays
+ *                 (Memory helper: number of delays passed.)
+ *
+ * \param data     Pointer to timing data
+ *                 Must point to a valid \c mbedtls_timing_delay_context struct.
+ *
+ * \return         -1 if cancelled (fin_ms = 0)
+ *                  0 if none of the delays are passed,
+ *                  1 if only the intermediate delay is passed,
+ *                  2 if the final delay is passed.
+ */
+int mbedtls_timing_get_delay(void *data);
+
+#ifdef __cplusplus
+}
+#endif
+
+#else  /* MBEDTLS_TIMING_ALT */
+#include "timing_alt.h"
+#endif /* MBEDTLS_TIMING_ALT */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(MBEDTLS_SELF_TEST)
+/**
+ * \brief          Checkup routine
+ *
+ * \return         0 if successful, or 1 if a test failed
+ */
+int mbedtls_timing_self_test(int verbose);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* timing.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/x509.h

@@ -0,0 +1,314 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_X509_H
+#define MBEDTLS_X509_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#include "asn1.h"
+#include "pk.h"
+
+#if defined(MBEDTLS_RSA_C)
+    #include "rsa.h"
+#endif
+
+/**
+ * \addtogroup x509_module
+ * \{
+ */
+
+#if !defined(MBEDTLS_X509_MAX_INTERMEDIATE_CA)
+    /**
+    * Maximum number of intermediate CAs in a verification chain.
+    * That is, maximum length of the chain, excluding the end-entity certificate
+    * and the trusted root certificate.
+    *
+    * Set this to a low value to prevent an adversary from making you waste
+    * resources verifying an overlong certificate chain.
+    */
+    #define MBEDTLS_X509_MAX_INTERMEDIATE_CA   8
+#endif
+
+/**
+ * \name X509 Error codes
+ * \{
+ */
+#define MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE              -0x2080  /**< Unavailable feature, e.g. RSA hashing/encryption combination. */
+#define MBEDTLS_ERR_X509_UNKNOWN_OID                      -0x2100  /**< Requested OID is unknown. */
+#define MBEDTLS_ERR_X509_INVALID_FORMAT                   -0x2180  /**< The CRT/CRL/CSR format is invalid, e.g. different type expected. */
+#define MBEDTLS_ERR_X509_INVALID_VERSION                  -0x2200  /**< The CRT/CRL/CSR version element is invalid. */
+#define MBEDTLS_ERR_X509_INVALID_SERIAL                   -0x2280  /**< The serial tag or value is invalid. */
+#define MBEDTLS_ERR_X509_INVALID_ALG                      -0x2300  /**< The algorithm tag or value is invalid. */
+#define MBEDTLS_ERR_X509_INVALID_NAME                     -0x2380  /**< The name tag or value is invalid. */
+#define MBEDTLS_ERR_X509_INVALID_DATE                     -0x2400  /**< The date tag or value is invalid. */
+#define MBEDTLS_ERR_X509_INVALID_SIGNATURE                -0x2480  /**< The signature tag or value invalid. */
+#define MBEDTLS_ERR_X509_INVALID_EXTENSIONS               -0x2500  /**< The extension tag or value is invalid. */
+#define MBEDTLS_ERR_X509_UNKNOWN_VERSION                  -0x2580  /**< CRT/CRL/CSR has an unsupported version number. */
+#define MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG                  -0x2600  /**< Signature algorithm (oid) is unsupported. */
+#define MBEDTLS_ERR_X509_SIG_MISMATCH                     -0x2680  /**< Signature algorithms do not match. (see \c ::mbedtls_x509_crt sig_oid) */
+#define MBEDTLS_ERR_X509_CERT_VERIFY_FAILED               -0x2700  /**< Certificate verification failed, e.g. CRL, CA or signature check failed. */
+#define MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT              -0x2780  /**< Format not recognized as DER or PEM. */
+#define MBEDTLS_ERR_X509_BAD_INPUT_DATA                   -0x2800  /**< Input invalid. */
+#define MBEDTLS_ERR_X509_ALLOC_FAILED                     -0x2880  /**< Allocation of memory failed. */
+#define MBEDTLS_ERR_X509_FILE_IO_ERROR                    -0x2900  /**< Read/write of file failed. */
+#define MBEDTLS_ERR_X509_BUFFER_TOO_SMALL                 -0x2980  /**< Destination buffer is too small. */
+/* \} name */
+
+/**
+ * \name X509 Verify codes
+ * \{
+ */
+/* Reminder: update x509_crt_verify_strings[] in library/x509_crt.c */
+#define MBEDTLS_X509_BADCERT_EXPIRED             0x01  /**< The certificate validity has expired. */
+#define MBEDTLS_X509_BADCERT_REVOKED             0x02  /**< The certificate has been revoked (is on a CRL). */
+#define MBEDTLS_X509_BADCERT_CN_MISMATCH         0x04  /**< The certificate Common Name (CN) does not match with the expected CN. */
+#define MBEDTLS_X509_BADCERT_NOT_TRUSTED         0x08  /**< The certificate is not correctly signed by the trusted CA. */
+#define MBEDTLS_X509_BADCRL_NOT_TRUSTED          0x10  /**< The CRL is not correctly signed by the trusted CA. */
+#define MBEDTLS_X509_BADCRL_EXPIRED              0x20  /**< The CRL is expired. */
+#define MBEDTLS_X509_BADCERT_MISSING             0x40  /**< Certificate was missing. */
+#define MBEDTLS_X509_BADCERT_SKIP_VERIFY         0x80  /**< Certificate verification was skipped. */
+#define MBEDTLS_X509_BADCERT_OTHER             0x0100  /**< Other reason (can be used by verify callback) */
+#define MBEDTLS_X509_BADCERT_FUTURE            0x0200  /**< The certificate validity starts in the future. */
+#define MBEDTLS_X509_BADCRL_FUTURE             0x0400  /**< The CRL is from the future */
+#define MBEDTLS_X509_BADCERT_KEY_USAGE         0x0800  /**< Usage does not match the keyUsage extension. */
+#define MBEDTLS_X509_BADCERT_EXT_KEY_USAGE     0x1000  /**< Usage does not match the extendedKeyUsage extension. */
+#define MBEDTLS_X509_BADCERT_NS_CERT_TYPE      0x2000  /**< Usage does not match the nsCertType extension. */
+#define MBEDTLS_X509_BADCERT_BAD_MD            0x4000  /**< The certificate is signed with an unacceptable hash. */
+#define MBEDTLS_X509_BADCERT_BAD_PK            0x8000  /**< The certificate is signed with an unacceptable PK alg (eg RSA vs ECDSA). */
+#define MBEDTLS_X509_BADCERT_BAD_KEY         0x010000  /**< The certificate is signed with an unacceptable key (eg bad curve, RSA too short). */
+#define MBEDTLS_X509_BADCRL_BAD_MD           0x020000  /**< The CRL is signed with an unacceptable hash. */
+#define MBEDTLS_X509_BADCRL_BAD_PK           0x040000  /**< The CRL is signed with an unacceptable PK alg (eg RSA vs ECDSA). */
+#define MBEDTLS_X509_BADCRL_BAD_KEY          0x080000  /**< The CRL is signed with an unacceptable key (eg bad curve, RSA too short). */
+
+/* \} name */
+/* \} addtogroup x509_module */
+
+/*
+ * X.509 v3 Key Usage Extension flags
+ * Reminder: update x509_info_key_usage() when adding new flags.
+ */
+#define MBEDTLS_X509_KU_DIGITAL_SIGNATURE            (0x80)  /* bit 0 */
+#define MBEDTLS_X509_KU_NON_REPUDIATION              (0x40)  /* bit 1 */
+#define MBEDTLS_X509_KU_KEY_ENCIPHERMENT             (0x20)  /* bit 2 */
+#define MBEDTLS_X509_KU_DATA_ENCIPHERMENT            (0x10)  /* bit 3 */
+#define MBEDTLS_X509_KU_KEY_AGREEMENT                (0x08)  /* bit 4 */
+#define MBEDTLS_X509_KU_KEY_CERT_SIGN                (0x04)  /* bit 5 */
+#define MBEDTLS_X509_KU_CRL_SIGN                     (0x02)  /* bit 6 */
+#define MBEDTLS_X509_KU_ENCIPHER_ONLY                (0x01)  /* bit 7 */
+#define MBEDTLS_X509_KU_DECIPHER_ONLY              (0x8000)  /* bit 8 */
+
+/*
+ * Netscape certificate types
+ * (http://www.mozilla.org/projects/security/pki/nss/tech-notes/tn3.html)
+ */
+
+#define MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT         (0x80)  /* bit 0 */
+#define MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER         (0x40)  /* bit 1 */
+#define MBEDTLS_X509_NS_CERT_TYPE_EMAIL              (0x20)  /* bit 2 */
+#define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING     (0x10)  /* bit 3 */
+#define MBEDTLS_X509_NS_CERT_TYPE_RESERVED           (0x08)  /* bit 4 */
+#define MBEDTLS_X509_NS_CERT_TYPE_SSL_CA             (0x04)  /* bit 5 */
+#define MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA           (0x02)  /* bit 6 */
+#define MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA  (0x01)  /* bit 7 */
+
+/*
+ * X.509 extension types
+ *
+ * Comments refer to the status for using certificates. Status can be
+ * different for writing certificates or reading CRLs or CSRs.
+ */
+#define MBEDTLS_X509_EXT_AUTHORITY_KEY_IDENTIFIER    (1 << 0)
+#define MBEDTLS_X509_EXT_SUBJECT_KEY_IDENTIFIER      (1 << 1)
+#define MBEDTLS_X509_EXT_KEY_USAGE                   (1 << 2)
+#define MBEDTLS_X509_EXT_CERTIFICATE_POLICIES        (1 << 3)
+#define MBEDTLS_X509_EXT_POLICY_MAPPINGS             (1 << 4)
+#define MBEDTLS_X509_EXT_SUBJECT_ALT_NAME            (1 << 5)    /* Supported (DNS) */
+#define MBEDTLS_X509_EXT_ISSUER_ALT_NAME             (1 << 6)
+#define MBEDTLS_X509_EXT_SUBJECT_DIRECTORY_ATTRS     (1 << 7)
+#define MBEDTLS_X509_EXT_BASIC_CONSTRAINTS           (1 << 8)    /* Supported */
+#define MBEDTLS_X509_EXT_NAME_CONSTRAINTS            (1 << 9)
+#define MBEDTLS_X509_EXT_POLICY_CONSTRAINTS          (1 << 10)
+#define MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE          (1 << 11)
+#define MBEDTLS_X509_EXT_CRL_DISTRIBUTION_POINTS     (1 << 12)
+#define MBEDTLS_X509_EXT_INIHIBIT_ANYPOLICY          (1 << 13)
+#define MBEDTLS_X509_EXT_FRESHEST_CRL                (1 << 14)
+
+#define MBEDTLS_X509_EXT_NS_CERT_TYPE                (1 << 16)
+
+/*
+ * Storage format identifiers
+ * Recognized formats: PEM and DER
+ */
+#define MBEDTLS_X509_FORMAT_DER                 1
+#define MBEDTLS_X509_FORMAT_PEM                 2
+
+#define MBEDTLS_X509_MAX_DN_NAME_SIZE         256 /**< Maximum value size of a DN entry */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \addtogroup x509_module
+ * \{ */
+
+/**
+ * \name Structures for parsing X.509 certificates, CRLs and CSRs
+ * \{
+ */
+
+/**
+ * Type-length-value structure that allows for ASN1 using DER.
+ */
+typedef mbedtls_asn1_buf mbedtls_x509_buf;
+
+/**
+ * Container for ASN1 bit strings.
+ */
+typedef mbedtls_asn1_bitstring mbedtls_x509_bitstring;
+
+/**
+ * Container for ASN1 named information objects.
+ * It allows for Relative Distinguished Names (e.g. cn=localhost,ou=code,etc.).
+ */
+typedef mbedtls_asn1_named_data mbedtls_x509_name;
+
+/**
+ * Container for a sequence of ASN.1 items
+ */
+typedef mbedtls_asn1_sequence mbedtls_x509_sequence;
+
+/** Container for date and time (precision in seconds). */
+typedef struct mbedtls_x509_time {
+    int year, mon, day;         /**< Date. */
+    int hour, min, sec;         /**< Time. */
+}
+mbedtls_x509_time;
+
+/** \} name Structures for parsing X.509 certificates, CRLs and CSRs */
+/** \} addtogroup x509_module */
+
+/**
+ * \brief          Store the certificate DN in printable form into buf;
+ *                 no more than size characters will be written.
+ *
+ * \param buf      Buffer to write to
+ * \param size     Maximum size of buffer
+ * \param dn       The X509 name to represent
+ *
+ * \return         The length of the string written (not including the
+ *                 terminated nul byte), or a negative error code.
+ */
+int mbedtls_x509_dn_gets(char *buf, size_t size, const mbedtls_x509_name *dn);
+
+/**
+ * \brief          Store the certificate serial in printable form into buf;
+ *                 no more than size characters will be written.
+ *
+ * \param buf      Buffer to write to
+ * \param size     Maximum size of buffer
+ * \param serial   The X509 serial to represent
+ *
+ * \return         The length of the string written (not including the
+ *                 terminated nul byte), or a negative error code.
+ */
+int mbedtls_x509_serial_gets(char *buf, size_t size, const mbedtls_x509_buf *serial);
+
+/**
+ * \brief          Check a given mbedtls_x509_time against the system time
+ *                 and tell if it's in the past.
+ *
+ * \note           Intended usage is "if( is_past( valid_to ) ) ERROR".
+ *                 Hence the return value of 1 if on internal errors.
+ *
+ * \param time     mbedtls_x509_time to check
+ *
+ * \return         1 if the given time is in the past or an error occured,
+ *                 0 otherwise.
+ */
+int mbedtls_x509_time_is_past(const mbedtls_x509_time *time);
+
+/**
+ * \brief          Check a given mbedtls_x509_time against the system time
+ *                 and tell if it's in the future.
+ *
+ * \note           Intended usage is "if( is_future( valid_from ) ) ERROR".
+ *                 Hence the return value of 1 if on internal errors.
+ *
+ * \param time     mbedtls_x509_time to check
+ *
+ * \return         1 if the given time is in the future or an error occured,
+ *                 0 otherwise.
+ */
+int mbedtls_x509_time_is_future(const mbedtls_x509_time *time);
+
+/**
+ * \brief          Checkup routine
+ *
+ * \return         0 if successful, or 1 if the test failed
+ */
+int mbedtls_x509_self_test(int verbose);
+
+/*
+ * Internal module functions. You probably do not want to use these unless you
+ * know you do.
+ */
+int mbedtls_x509_get_name(unsigned char **p, const unsigned char *end,
+                                      mbedtls_x509_name *cur);
+int mbedtls_x509_get_alg_null(unsigned char **p, const unsigned char *end,
+        mbedtls_x509_buf *alg);
+int mbedtls_x509_get_alg(unsigned char **p, const unsigned char *end,
+                                     mbedtls_x509_buf *alg, mbedtls_x509_buf *params);
+#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
+int mbedtls_x509_get_rsassa_pss_params(const mbedtls_x509_buf *params,
+        mbedtls_md_type_t *md_alg, mbedtls_md_type_t *mgf_md,
+        int *salt_len);
+#endif
+int mbedtls_x509_get_sig(unsigned char **p, const unsigned char *end, mbedtls_x509_buf *sig);
+int mbedtls_x509_get_sig_alg(const mbedtls_x509_buf *sig_oid, const mbedtls_x509_buf *sig_params,
+        mbedtls_md_type_t *md_alg, mbedtls_pk_type_t *pk_alg,
+        void **sig_opts);
+int mbedtls_x509_get_time(unsigned char **p, const unsigned char *end,
+                                      mbedtls_x509_time *time);
+int mbedtls_x509_get_serial(unsigned char **p, const unsigned char *end,
+                                        mbedtls_x509_buf *serial);
+int mbedtls_x509_get_ext(unsigned char **p, const unsigned char *end,
+                                     mbedtls_x509_buf *ext, int tag);
+int mbedtls_x509_sig_alg_gets(char *buf, size_t size, const mbedtls_x509_buf *sig_oid,
+        mbedtls_pk_type_t pk_alg, mbedtls_md_type_t md_alg,
+        const void *sig_opts);
+int mbedtls_x509_key_size_helper(char *buf, size_t buf_size, const char *name);
+int mbedtls_x509_string_to_names(mbedtls_asn1_named_data **head, const char *name);
+int mbedtls_x509_set_extension(mbedtls_asn1_named_data **head, const char *oid, size_t oid_len,
+        int critical, const unsigned char *val,
+        size_t val_len);
+int mbedtls_x509_write_extensions(unsigned char **p, unsigned char *start,
+        mbedtls_asn1_named_data *first);
+int mbedtls_x509_write_names(unsigned char **p, unsigned char *start,
+        mbedtls_asn1_named_data *first);
+int mbedtls_x509_write_sig(unsigned char **p, unsigned char *start,
+                                       const char *oid, size_t oid_len,
+                                       unsigned char *sig, size_t size);
+
+#define MBEDTLS_X509_SAFE_SNPRINTF                          \
+    do {                                                    \
+        if( ret < 0 || (size_t) ret >= n )                  \
+            return( MBEDTLS_ERR_X509_BUFFER_TOO_SMALL );    \
+        \
+        n -= (size_t) ret;                                  \
+        p += (size_t) ret;                                  \
+    } while( 0 )
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* x509.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/x509_crl.h

@@ -0,0 +1,157 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_X509_CRL_H
+#define MBEDTLS_X509_CRL_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#include "x509.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \addtogroup x509_module
+ * \{ */
+
+/**
+ * \name Structures and functions for parsing CRLs
+ * \{
+ */
+
+/**
+ * Certificate revocation list entry.
+ * Contains the CA-specific serial numbers and revocation dates.
+ */
+typedef struct mbedtls_x509_crl_entry {
+    mbedtls_x509_buf raw;
+
+    mbedtls_x509_buf serial;
+
+    mbedtls_x509_time revocation_date;
+
+    mbedtls_x509_buf entry_ext;
+
+    struct mbedtls_x509_crl_entry *next;
+}
+mbedtls_x509_crl_entry;
+
+/**
+ * Certificate revocation list structure.
+ * Every CRL may have multiple entries.
+ */
+typedef struct mbedtls_x509_crl {
+    mbedtls_x509_buf raw;           /**< The raw certificate data (DER). */
+    mbedtls_x509_buf tbs;           /**< The raw certificate body (DER). The part that is To Be Signed. */
+
+    int version;            /**< CRL version (1=v1, 2=v2) */
+    mbedtls_x509_buf sig_oid;       /**< CRL signature type identifier */
+
+    mbedtls_x509_buf issuer_raw;    /**< The raw issuer data (DER). */
+
+    mbedtls_x509_name issuer;       /**< The parsed issuer data (named information object). */
+
+    mbedtls_x509_time this_update;
+    mbedtls_x509_time next_update;
+
+    mbedtls_x509_crl_entry entry;   /**< The CRL entries containing the certificate revocation times for this CA. */
+
+    mbedtls_x509_buf crl_ext;
+
+    mbedtls_x509_buf sig_oid2;
+    mbedtls_x509_buf sig;
+    mbedtls_md_type_t
+    sig_md;           /**< Internal representation of the MD algorithm of the signature algorithm, e.g. MBEDTLS_MD_SHA256 */
+    mbedtls_pk_type_t
+    sig_pk;           /**< Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA */
+    void *sig_opts;             /**< Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS */
+
+    struct mbedtls_x509_crl *next;
+}
+mbedtls_x509_crl;
+
+/**
+ * \brief          Parse a DER-encoded CRL and append it to the chained list
+ *
+ * \param chain    points to the start of the chain
+ * \param buf      buffer holding the CRL data in DER format
+ * \param buflen   size of the buffer
+ *                 (including the terminating null byte for PEM data)
+ *
+ * \return         0 if successful, or a specific X509 or PEM error code
+ */
+int mbedtls_x509_crl_parse_der(mbedtls_x509_crl *chain,
+        const unsigned char *buf, size_t buflen);
+/**
+ * \brief          Parse one or more CRLs and append them to the chained list
+ *
+ * \note           Mutliple CRLs are accepted only if using PEM format
+ *
+ * \param chain    points to the start of the chain
+ * \param buf      buffer holding the CRL data in PEM or DER format
+ * \param buflen   size of the buffer
+ *                 (including the terminating null byte for PEM data)
+ *
+ * \return         0 if successful, or a specific X509 or PEM error code
+ */
+int mbedtls_x509_crl_parse(mbedtls_x509_crl *chain, const unsigned char *buf, size_t buflen);
+
+#if defined(MBEDTLS_FS_IO)
+/**
+ * \brief          Load one or more CRLs and append them to the chained list
+ *
+ * \note           Mutliple CRLs are accepted only if using PEM format
+ *
+ * \param chain    points to the start of the chain
+ * \param path     filename to read the CRLs from (in PEM or DER encoding)
+ *
+ * \return         0 if successful, or a specific X509 or PEM error code
+ */
+int mbedtls_x509_crl_parse_file(mbedtls_x509_crl *chain, const char *path);
+#endif /* MBEDTLS_FS_IO */
+
+/**
+ * \brief          Returns an informational string about the CRL.
+ *
+ * \param buf      Buffer to write to
+ * \param size     Maximum size of buffer
+ * \param prefix   A line prefix
+ * \param crl      The X509 CRL to represent
+ *
+ * \return         The length of the string written (not including the
+ *                 terminated nul byte), or a negative error code.
+ */
+int mbedtls_x509_crl_info(char *buf, size_t size, const char *prefix,
+                                      const mbedtls_x509_crl *crl);
+
+/**
+ * \brief          Initialize a CRL (chain)
+ *
+ * \param crl      CRL chain to initialize
+ */
+void mbedtls_x509_crl_init(mbedtls_x509_crl *crl);
+
+/**
+ * \brief          Unallocate all CRL data
+ *
+ * \param crl      CRL chain to free
+ */
+void mbedtls_x509_crl_free(mbedtls_x509_crl *crl);
+
+/* \} name */
+/* \} addtogroup x509_module */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* mbedtls_x509_crl.h */

components/connectivity/iotkit-embedded-3.0.1/3rdparty/external_libs/mbedtls/include/mbedtls/x509_crt.h

@@ -0,0 +1,637 @@
+/*
+ * Copyright (C) 2015-2018 Alibaba Group Holding Limited
+ */
+
+
+
+#ifndef MBEDTLS_X509_CRT_H
+#define MBEDTLS_X509_CRT_H
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+    #include "config.h"
+#else
+    #include MBEDTLS_CONFIG_FILE
+#endif
+
+#include "x509.h"
+#include "x509_crl.h"
+
+/**
+ * \addtogroup x509_module
+ * \{
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \name Structures and functions for parsing and writing X.509 certificates
+ * \{
+ */
+
+/**
+ * Container for an X.509 certificate. The certificate may be chained.
+ */
+typedef struct mbedtls_x509_crt {
+    mbedtls_x509_buf raw;               /**< The raw certificate data (DER). */
+    mbedtls_x509_buf tbs;               /**< The raw certificate body (DER). The part that is To Be Signed. */
+
+    int version;                /**< The X.509 version. (1=v1, 2=v2, 3=v3) */
+    mbedtls_x509_buf serial;            /**< Unique id for certificate issued by a specific CA. */
+    mbedtls_x509_buf sig_oid;           /**< Signature algorithm, e.g. sha1RSA */
+
+    mbedtls_x509_buf issuer_raw;        /**< The raw issuer data (DER). Used for quick comparison. */
+    mbedtls_x509_buf subject_raw;       /**< The raw subject data (DER). Used for quick comparison. */
+
+    mbedtls_x509_name issuer;           /**< The parsed issuer data (named information object). */
+    mbedtls_x509_name subject;          /**< The parsed subject data (named information object). */
+
+    mbedtls_x509_time valid_from;       /**< Start time of certificate validity. */
+    mbedtls_x509_time valid_to;         /**< End time of certificate validity. */
+
+    mbedtls_pk_context pk;              /**< Container for the public key context. */
+
+    mbedtls_x509_buf issuer_id;         /**< Optional X.509 v2/v3 issuer unique identifier. */
+    mbedtls_x509_buf subject_id;        /**< Optional X.509 v2/v3 subject unique identifier. */
+    mbedtls_x509_buf v3_ext;            /**< Optional X.509 v3 extensions.  */
+    mbedtls_x509_sequence subject_alt_names;    /**< Optional list of Subject Alternative Names (Only dNSName supported). */
+
+    int ext_types;              /**< Bit string containing detected and parsed extensions */
+    int ca_istrue;              /**< Optional Basic Constraint extension value: 1 if this certificate belongs to a CA, 0 otherwise. */
+    int max_pathlen;            /**< Optional Basic Constraint extension value: The maximum path length to the root certificate. Path length is 1 higher than RFC 5280 'meaning', so 1+ */
+
+    unsigned int key_usage;     /**< Optional key usage extension value: See the values in x509.h */
+
+    mbedtls_x509_sequence ext_key_usage; /**< Optional list of extended key usage OIDs. */
+
+    unsigned char ns_cert_type; /**< Optional Netscape certificate type extension value: See the values in x509.h */
+
+    mbedtls_x509_buf sig;               /**< Signature: hash of the tbs part signed with the private key. */
+    mbedtls_md_type_t
+    sig_md;           /**< Internal representation of the MD algorithm of the signature algorithm, e.g. MBEDTLS_MD_SHA256 */
+    mbedtls_pk_type_t
+    sig_pk;           /**< Internal representation of the Public Key algorithm of the signature algorithm, e.g. MBEDTLS_PK_RSA */
+    void *sig_opts;             /**< Signature options to be passed to mbedtls_pk_verify_ext(), e.g. for RSASSA-PSS */
+
+    struct mbedtls_x509_crt *next;     /**< Next certificate in the CA-chain. */
+}
+mbedtls_x509_crt;
+
+/**
+ * Build flag from an algorithm/curve identifier (pk, md, ecp)
+ * Since 0 is always XXX_NONE, ignore it.
+ */
+#define MBEDTLS_X509_ID_FLAG( id )   ( 1 << ( id - 1 ) )
+
+/**
+ * Security profile for certificate verification.
+ *
+ * All lists are bitfields, built by ORing flags from MBEDTLS_X509_ID_FLAG().
+ */
+typedef struct {
+    uint32_t allowed_mds;       /**< MDs for signatures         */
+    uint32_t allowed_pks;       /**< PK algs for signatures     */
+    uint32_t allowed_curves;    /**< Elliptic curves for ECDSA  */
+    uint32_t rsa_min_bitlen;    /**< Minimum size for RSA keys  */
+}
+mbedtls_x509_crt_profile;
+
+#define MBEDTLS_X509_CRT_VERSION_1              0
+#define MBEDTLS_X509_CRT_VERSION_2              1
+#define MBEDTLS_X509_CRT_VERSION_3              2
+
+#define MBEDTLS_X509_RFC5280_MAX_SERIAL_LEN 32
+#define MBEDTLS_X509_RFC5280_UTC_TIME_LEN   15
+
+#if !defined( MBEDTLS_X509_MAX_FILE_PATH_LEN )
+#define MBEDTLS_X509_MAX_FILE_PATH_LEN 512
+#endif
+
+/**
+ * Container for writing a certificate (CRT)
+ */
+typedef struct mbedtls_x509write_cert {
+    int version;
+    mbedtls_mpi serial;
+    mbedtls_pk_context *subject_key;
+    mbedtls_pk_context *issuer_key;
+    mbedtls_asn1_named_data *subject;
+    mbedtls_asn1_named_data *issuer;
+    mbedtls_md_type_t md_alg;
+    char not_before[MBEDTLS_X509_RFC5280_UTC_TIME_LEN + 1];
+    char not_after[MBEDTLS_X509_RFC5280_UTC_TIME_LEN + 1];
+    mbedtls_asn1_named_data *extensions;
+}
+mbedtls_x509write_cert;
+
+#if defined(MBEDTLS_X509_CRT_PARSE_C)
+/**
+ * Default security profile. Should provide a good balance between security
+ * and compatibility with current deployments.
+ */
+extern const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_default;
+
+/**
+ * Expected next default profile. Recommended for new deployments.
+ * Currently targets a 128-bit security level, except for RSA-2048.
+ */
+extern const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_next;
+
+/**
+ * NSA Suite B profile.
+ */
+extern const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_suiteb;
+
+/**
+ * \brief          Parse a single DER formatted certificate and add it
+ *                 to the chained list.
+ *
+ * \param chain    points to the start of the chain
+ * \param buf      buffer holding the certificate DER data
+ * \param buflen   size of the buffer
+ *
+ * \return         0 if successful, or a specific X509 or PEM error code
+ */
+int mbedtls_x509_crt_parse_der(mbedtls_x509_crt *chain, const unsigned char *buf,
+        size_t buflen);
+
+/**
+ * \brief          Parse one or more certificates and add them
+ *                 to the chained list. Parses permissively. If some
+ *                 certificates can be parsed, the result is the number
+ *                 of failed certificates it encountered. If none complete
+ *                 correctly, the first error is returned.
+ *
+ * \param chain    points to the start of the chain
+ * \param buf      buffer holding the certificate data in PEM or DER format
+ * \param buflen   size of the buffer
+ *                 (including the terminating null byte for PEM data)
+ *
+ * \return         0 if all certificates parsed successfully, a positive number
+ *                 if partly successful or a specific X509 or PEM error code
+ */
+int mbedtls_x509_crt_parse(mbedtls_x509_crt *chain, const unsigned char *buf, size_t buflen);
+
+#if defined(MBEDTLS_FS_IO)
+/**
+ * \brief          Load one or more certificates and add them
+ *                 to the chained list. Parses permissively. If some
+ *                 certificates can be parsed, the result is the number
+ *                 of failed certificates it encountered. If none complete
+ *                 correctly, the first error is returned.
+ *
+ * \param chain    points to the start of the chain
+ * \param path     filename to read the certificates from
+ *
+ * \return         0 if all certificates parsed successfully, a positive number
+ *                 if partly successful or a specific X509 or PEM error code
+ */
+int mbedtls_x509_crt_parse_file(mbedtls_x509_crt *chain, const char *path);
+
+/**
+ * \brief          Load one or more certificate files from a path and add them
+ *                 to the chained list. Parses permissively. If some
+ *                 certificates can be parsed, the result is the number
+ *                 of failed certificates it encountered. If none complete
+ *                 correctly, the first error is returned.
+ *
+ * \param chain    points to the start of the chain
+ * \param path     directory / folder to read the certificate files from
+ *
+ * \return         0 if all certificates parsed successfully, a positive number
+ *                 if partly successful or a specific X509 or PEM error code
+ */
+int mbedtls_x509_crt_parse_path(mbedtls_x509_crt *chain, const char *path);
+#endif /* MBEDTLS_FS_IO */
+
+/**
+ * \brief          Returns an informational string about the
+ *                 certificate.
+ *
+ * \param buf      Buffer to write to
+ * \param size     Maximum size of buffer
+ * \param prefix   A line prefix
+ * \param crt      The X509 certificate to represent
+ *
+ * \return         The length of the string written (not including the
+ *                 terminated nul byte), or a negative error code.
+ */
+int mbedtls_x509_crt_info(char *buf, size_t size, const char *prefix,
+                                      const mbedtls_x509_crt *crt);
+
+/**
+ * \brief          Returns an informational string about the
+ *                 verification status of a certificate.
+ *
+ * \param buf      Buffer to write to
+ * \param size     Maximum size of buffer
+ * \param prefix   A line prefix
+ * \param flags    Verification flags created by mbedtls_x509_crt_verify()
+ *
+ * \return         The length of the string written (not including the
+ *                 terminated nul byte), or a negative error code.
+ */
+int mbedtls_x509_crt_verify_info(char *buf, size_t size, const char *prefix,
+        uint32_t flags);
+
+/**
+ * \brief          Verify the certificate signature
+ *
+ *                 The verify callback is a user-supplied callback that
+ *                 can clear / modify / add flags for a certificate. If set,
+ *                 the verification callback is called for each
+ *                 certificate in the chain (from the trust-ca down to the
+ *                 presented crt). The parameters for the callback are:
+ *                 (void *parameter, mbedtls_x509_crt *crt, int certificate_depth,
+ *                 int *flags). With the flags representing current flags for
+ *                 that specific certificate and the certificate depth from
+ *                 the bottom (Peer cert depth = 0).
+ *
+ *                 All flags left after returning from the callback
+ *                 are also returned to the application. The function should
+ *                 return 0 for anything but a fatal error.
+ *
+ * \note           In case verification failed, the results can be displayed
+ *                 using \c mbedtls_x509_crt_verify_info()
+ *
+ * \note           Same as \c mbedtls_x509_crt_verify_with_profile() with the
+ *                 default security profile.
+ *
+ * \note           It is your responsibility to provide up-to-date CRLs for
+ *                 all trusted CAs. If no CRL is provided for the CA that was
+ *                 used to sign the certificate, CRL verification is skipped
+ *                 silently, that is *without* setting any flag.
+ *
+ * \param crt      a certificate (chain) to be verified
+ * \param trust_ca the list of trusted CAs
+ * \param ca_crl   the list of CRLs for trusted CAs (see note above)
+ * \param cn       expected Common Name (can be set to
+ *                 NULL if the CN must not be verified)
+ * \param flags    result of the verification
+ * \param f_vrfy   verification function
+ * \param p_vrfy   verification parameter
+ *
+ * \return         0 if successful or MBEDTLS_ERR_X509_CERT_VERIFY_FAILED
+ *                 in which case *flags will have one or more
+ *                 MBEDTLS_X509_BADCERT_XXX or MBEDTLS_X509_BADCRL_XXX flags
+ *                 set,
+ *                 or another error in case of a fatal error encountered
+ *                 during the verification process.
+ */
+int mbedtls_x509_crt_verify(mbedtls_x509_crt *crt,
+                                        mbedtls_x509_crt *trust_ca,
+                                        mbedtls_x509_crl *ca_crl,
+                                        const char *cn, uint32_t *flags,
+                                        int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
+                                        void *p_vrfy);
+
+/**
+ * \brief          Verify the certificate signature according to profile
+ *
+ * \note           Same as \c mbedtls_x509_crt_verify(), but with explicit
+ *                 security profile.
+ *
+ * \note           The restrictions on keys (RSA minimum size, allowed curves
+ *                 for ECDSA) apply to all certificates: trusted root,
+ *                 intermediate CAs if any, and end entity certificate.
+ *
+ * \param crt      a certificate (chain) to be verified
+ * \param trust_ca the list of trusted CAs
+ * \param ca_crl   the list of CRLs for trusted CAs
+ * \param profile  security profile for verification
+ * \param cn       expected Common Name (can be set to
+ *                 NULL if the CN must not be verified)
+ * \param flags    result of the verification
+ * \param f_vrfy   verification function
+ * \param p_vrfy   verification parameter
+ *
+ * \return         0 if successful or MBEDTLS_ERR_X509_CERT_VERIFY_FAILED
+ *                 in which case *flags will have one or more
+ *                 MBEDTLS_X509_BADCERT_XXX or MBEDTLS_X509_BADCRL_XXX flags
+ *                 set,
+ *                 or another error in case of a fatal error encountered
+ *                 during the verification process.
+ */
+int mbedtls_x509_crt_verify_with_profile(mbedtls_x509_crt *crt,
+        mbedtls_x509_crt *trust_ca,
+        mbedtls_x509_crl *ca_crl,
+        const mbedtls_x509_crt_profile *profile,
+        const char *cn, uint32_t *flags,
+        int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
+        void *p_vrfy);
+
+#if defined(MBEDTLS_X509_CHECK_KEY_USAGE)
+/**
+ * \brief          Check usage of certificate against keyUsage extension.
+ *
+ * \param crt      Leaf certificate used.
+ * \param usage    Intended usage(s) (eg MBEDTLS_X509_KU_KEY_ENCIPHERMENT
+ *                 before using the certificate to perform an RSA key
+ *                 exchange).
+ *
+ * \note           Except for decipherOnly and encipherOnly, a bit set in the
+ *                 usage argument means this bit MUST be set in the
+ *                 certificate. For decipherOnly and encipherOnly, it means
+ *                 that bit MAY be set.
+ *
+ * \return         0 is these uses of the certificate are allowed,
+ *                 MBEDTLS_ERR_X509_BAD_INPUT_DATA if the keyUsage extension
+ *                 is present but does not match the usage argument.
+ *
+ * \note           You should only call this function on leaf certificates, on
+ *                 (intermediate) CAs the keyUsage extension is automatically
+ *                 checked by \c mbedtls_x509_crt_verify().
+ */
+int mbedtls_x509_crt_check_key_usage(const mbedtls_x509_crt *crt,
+        unsigned int usage);
+#endif /* MBEDTLS_X509_CHECK_KEY_USAGE) */
+
+#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE)
+/**
+ * \brief          Check usage of certificate against extentedJeyUsage.
+ *
+ * \param crt      Leaf certificate used.
+ * \param usage_oid Intended usage (eg MBEDTLS_OID_SERVER_AUTH or MBEDTLS_OID_CLIENT_AUTH).
+ * \param usage_len Length of usage_oid (eg given by MBEDTLS_OID_SIZE()).
+ *
+ * \return         0 if this use of the certificate is allowed,
+ *                 MBEDTLS_ERR_X509_BAD_INPUT_DATA if not.
+ *
+ * \note           Usually only makes sense on leaf certificates.
+ */
+int mbedtls_x509_crt_check_extended_key_usage(const mbedtls_x509_crt *crt,
+        const char *usage_oid,
+        size_t usage_len);
+#endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE) */
+
+#if defined(MBEDTLS_X509_CRL_PARSE_C)
+/**
+ * \brief          Verify the certificate revocation status
+ *
+ * \param crt      a certificate to be verified
+ * \param crl      the CRL to verify against
+ *
+ * \return         1 if the certificate is revoked, 0 otherwise
+ *
+ */
+int mbedtls_x509_crt_is_revoked(const mbedtls_x509_crt *crt, const mbedtls_x509_crl *crl);
+#endif /* MBEDTLS_X509_CRL_PARSE_C */
+
+/**
+ * \brief          Initialize a certificate (chain)
+ *
+ * \param crt      Certificate chain to initialize
+ */
+void mbedtls_x509_crt_init(mbedtls_x509_crt *crt);
+
+/**
+ * \brief          Unallocate all certificate data
+ *
+ * \param crt      Certificate chain to free
+ */
+void mbedtls_x509_crt_free(mbedtls_x509_crt *crt);
+#endif /* MBEDTLS_X509_CRT_PARSE_C */
+
+/* \} name */
+/* \} addtogroup x509_module */
+
+#if defined(MBEDTLS_X509_CRT_WRITE_C)
+/**
+ * \brief           Initialize a CRT writing context
+ *
+ * \param ctx       CRT context to initialize
+ */
+void mbedtls_x509write_crt_init(mbedtls_x509write_cert *ctx);
+
+/**
+ * \brief           Set the verion for a Certificate
+ *                  Default: MBEDTLS_X509_CRT_VERSION_3
+ *
+ * \param ctx       CRT context to use
+ * \param version   version to set (MBEDTLS_X509_CRT_VERSION_1, MBEDTLS_X509_CRT_VERSION_2 or
+ *                                  MBEDTLS_X509_CRT_VERSION_3)
+ */
+void mbedtls_x509write_crt_set_version(mbedtls_x509write_cert *ctx, int version);
+
+/**
+ * \brief           Set the serial number for a Certificate.
+ *
+ * \param ctx       CRT context to use
+ * \param serial    serial number to set
+ *
+ * \return          0 if successful
+ */
+int mbedtls_x509write_crt_set_serial(mbedtls_x509write_cert *ctx, const mbedtls_mpi *serial);
+
+/**
+ * \brief           Set the validity period for a Certificate
+ *                  Timestamps should be in string format for UTC timezone
+ *                  i.e. "YYYYMMDDhhmmss"
+ *                  e.g. "20131231235959" for December 31st 2013
+ *                       at 23:59:59
+ *
+ * \param ctx       CRT context to use
+ * \param not_before    not_before timestamp
+ * \param not_after     not_after timestamp
+ *
+ * \return          0 if timestamp was parsed successfully, or
+ *                  a specific error code
+ */
+int mbedtls_x509write_crt_set_validity(mbedtls_x509write_cert *ctx, const char *not_before,
+        const char *not_after);
+
+/**
+ * \brief           Set the issuer name for a Certificate
+ *                  Issuer names should contain a comma-separated list
+ *                  of OID types and values:
+ *                  e.g. "C=UK,O=ARM,CN=mbed TLS CA"
+ *
+ * \param ctx           CRT context to use
+ * \param issuer_name   issuer name to set
+ *
+ * \return          0 if issuer name was parsed successfully, or
+ *                  a specific error code
+ */
+int mbedtls_x509write_crt_set_issuer_name(mbedtls_x509write_cert *ctx,
+        const char *issuer_name);
+
+/**
+ * \brief           Set the subject name for a Certificate
+ *                  Subject names should contain a comma-separated list
+ *                  of OID types and values:
+ *                  e.g. "C=UK,O=ARM,CN=mbed TLS Server 1"
+ *
+ * \param ctx           CRT context to use
+ * \param subject_name  subject name to set
+ *
+ * \return          0 if subject name was parsed successfully, or
+ *                  a specific error code
+ */
+int mbedtls_x509write_crt_set_subject_name(mbedtls_x509write_cert *ctx,
+        const char *subject_name);
+
+/**
+ * \brief           Set the subject public key for the certificate
+ *
+ * \param ctx       CRT context to use
+ * \param key       public key to include
+ */
+void mbedtls_x509write_crt_set_subject_key(mbedtls_x509write_cert *ctx, mbedtls_pk_context *key);
+
+/**
+ * \brief           Set the issuer key used for signing the certificate
+ *
+ * \param ctx       CRT context to use
+ * \param key       private key to sign with
+ */
+void mbedtls_x509write_crt_set_issuer_key(mbedtls_x509write_cert *ctx, mbedtls_pk_context *key);
+
+/**
+ * \brief           Set the MD algorithm to use for the signature
+ *                  (e.g. MBEDTLS_MD_SHA1)
+ *
+ * \param ctx       CRT context to use
+ * \param md_alg    MD algorithm to use
+ */
+void mbedtls_x509write_crt_set_md_alg(mbedtls_x509write_cert *ctx, mbedtls_md_type_t md_alg);
+
+/**
+ * \brief           Generic function to add to or replace an extension in the
+ *                  CRT
+ *
+ * \param ctx       CRT context to use
+ * \param oid       OID of the extension
+ * \param oid_len   length of the OID
+ * \param critical  if the extension is critical (per the RFC's definition)
+ * \param val       value of the extension OCTET STRING
+ * \param val_len   length of the value data
+ *
+ * \return          0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED
+ */
+int mbedtls_x509write_crt_set_extension(mbedtls_x509write_cert *ctx,
+        const char *oid, size_t oid_len,
+        int critical,
+        const unsigned char *val, size_t val_len);
+
+/**
+ * \brief           Set the basicConstraints extension for a CRT
+ *
+ * \param ctx       CRT context to use
+ * \param is_ca     is this a CA certificate
+ * \param max_pathlen   maximum length of certificate chains below this
+ *                      certificate (only for CA certificates, -1 is
+ *                      inlimited)
+ *
+ * \return          0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED
+ */
+int mbedtls_x509write_crt_set_basic_constraints(mbedtls_x509write_cert *ctx,
+        int is_ca, int max_pathlen);
+
+#if defined(MBEDTLS_SHA1_C)
+/**
+ * \brief           Set the subjectKeyIdentifier extension for a CRT
+ *                  Requires that mbedtls_x509write_crt_set_subject_key() has been
+ *                  called before
+ *
+ * \param ctx       CRT context to use
+ *
+ * \return          0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED
+ */
+int mbedtls_x509write_crt_set_subject_key_identifier(mbedtls_x509write_cert *ctx);
+
+/**
+ * \brief           Set the authorityKeyIdentifier extension for a CRT
+ *                  Requires that mbedtls_x509write_crt_set_issuer_key() has been
+ *                  called before
+ *
+ * \param ctx       CRT context to use
+ *
+ * \return          0 if successful, or a MBEDTLS_ERR_X509_ALLOC_FAILED
+ */
+int mbedtls_x509write_crt_set_authority_key_identifier(mbedtls_x509write_cert *ctx);
+#endif /* MBEDTLS_SHA1_C */
+
+/**
+ * \brief           Set the Key Usage Extension flags
+ *                  (e.g. MBEDTLS_X509_KU_DIGITAL_SIGNATURE | MBEDTLS_X509_KU_KEY_CERT_SIGN)
+ *
+ * \param ctx       CRT context to use
+ * \param key_usage key usage flags to set
+ *
+ * \return          0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED
+ */
+int mbedtls_x509write_crt_set_key_usage(mbedtls_x509write_cert *ctx,
+        unsigned int key_usage);
+
+/**
+ * \brief           Set the Netscape Cert Type flags
+ *                  (e.g. MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT | MBEDTLS_X509_NS_CERT_TYPE_EMAIL)
+ *
+ * \param ctx           CRT context to use
+ * \param ns_cert_type  Netscape Cert Type flags to set
+ *
+ * \return          0 if successful, or MBEDTLS_ERR_X509_ALLOC_FAILED
+ */
+int mbedtls_x509write_crt_set_ns_cert_type(mbedtls_x509write_cert *ctx,
+        unsigned char ns_cert_type);
+
+/**
+ * \brief           Free the contents of a CRT write context
+ *
+ * \param ctx       CRT context to free
+ */
+void mbedtls_x509write_crt_free(mbedtls_x509write_cert *ctx);
+
+/**
+ * \brief           Write a built up certificate to a X509 DER structure
+ *                  Note: data is written at the end of the buffer! Use the
+ *                        return value to determine where you should start
+ *                        using the buffer
+ *
+ * \param ctx       certificate to write away
+ * \param buf       buffer to write to
+ * \param size      size of the buffer
+ * \param f_rng     RNG function (for signature, see note)
+ * \param p_rng     RNG parameter
+ *
+ * \return          length of data written if successful, or a specific
+ *                  error code
+ *
+ * \note            f_rng may be NULL if RSA is used for signature and the
+ *                  signature is made offline (otherwise f_rng is desirable
+ *                  for countermeasures against timing attacks).
+ *                  ECDSA signatures always require a non-NULL f_rng.
+ */
+int mbedtls_x509write_crt_der(mbedtls_x509write_cert *ctx, unsigned char *buf, size_t size,
+        int (*f_rng)(void *, unsigned char *, size_t),
+        void *p_rng);
+
+#if defined(MBEDTLS_PEM_WRITE_C)
+/**
+ * \brief           Write a built up certificate to a X509 PEM string
+ *
+ * \param ctx       certificate to write away
+ * \param buf       buffer to write to
+ * \param size      size of the buffer
+ * \param f_rng     RNG function (for signature, see note)
+ * \param p_rng     RNG parameter
+ *
+ * \return          0 if successful, or a specific error code
+ *
+ * \note            f_rng may be NULL if RSA is used for signature and the
+ *                  signature is made offline (otherwise f_rng is desirable
+ *                  for countermeasures against timing attacks).
+ *                  ECDSA signatures always require a non-NULL f_rng.
+ */
+int mbedtls_x509write_crt_pem(mbedtls_x509write_cert *ctx, unsigned char *buf, size_t size,
+        int (*f_rng)(void *, unsigned char *, size_t),
+        void *p_rng);
+#endif /* MBEDTLS_PEM_WRITE_C */
+#endif /* MBEDTLS_X509_CRT_WRITE_C */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* mbedtls_x509_crt.h */