943db74fc7
1. qcloud has a great revolution, the protocol has been changed to implement data template, so the old TencentCloud_SDK developed by us will not work fine now(mqtt still works, but data template will not works fine for recently created product/devices). 2. I merge the official qlcoud sdk(include both the iot-hub and iot-explorer sdk) into the componet/conectivity to support new protocol of data template 3. iot-hub sdk, supply the fundamental iot protocol(like mqtt coap, etc.) iot-explorer sdk, supply the high level service like data template based on mqtt 4. To know how it works, see qcloud_iot_explorer_sdk_data_template、qcloud_iot_hub_sdk_mqtt example(keil project in board\TencentOS_tiny_EVB_MX_Plus\KEIL\qcloud_iot_explorer_sdk_data_template and board\TencentOS_tiny_EVB_MX_Plus\KEIL\qcloud_iot_hub_sdk_mqtt)
338 lines
8.9 KiB
C
338 lines
8.9 KiB
C
/*
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* Tencent is pleased to support the open source community by making IoT Hub available.
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* Copyright (C) 2016 THL A29 Limited, a Tencent company. All rights reserved.
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* Licensed under the MIT License (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://opensource.org/licenses/MIT
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* Unless required by applicable law or agreed to in writing, software distributed under the License is
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* distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "qcloud_iot_import.h"
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#include "qcloud_iot_export_log.h"
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#include "utils_sha1.h"
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/* Implementation that should never be optimized out by the compiler */
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static void utils_sha1_zeroize(void *v, size_t n)
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{
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volatile unsigned char *p = v;
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while (n--) {
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*p++ = 0;
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}
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}
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/*
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* 32-bit integer manipulation macros (big endian)
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*/
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#ifndef IOT_SHA1_GET_UINT32_BE
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#define IOT_SHA1_GET_UINT32_BE(n,b,i) \
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{ \
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(n) = ( (uint32_t) (b)[(i) ] << 24 ) \
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| ( (uint32_t) (b)[(i) + 1] << 16 ) \
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| ( (uint32_t) (b)[(i) + 2] << 8 ) \
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| ( (uint32_t) (b)[(i) + 3] ); \
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}
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#endif
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#ifndef IOT_SHA1_PUT_UINT32_BE
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#define IOT_SHA1_PUT_UINT32_BE(n,b,i) \
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{ \
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(b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
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(b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
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(b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
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(b)[(i) + 3] = (unsigned char) ( (n) ); \
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}
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#endif
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void utils_sha1_init(iot_sha1_context *ctx)
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{
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memset(ctx, 0, sizeof(iot_sha1_context));
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}
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void utils_sha1_free(iot_sha1_context *ctx)
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{
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if (ctx == NULL) {
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return;
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}
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utils_sha1_zeroize(ctx, sizeof(iot_sha1_context));
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}
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void utils_sha1_clone(iot_sha1_context *dst,
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const iot_sha1_context *src)
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{
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*dst = *src;
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}
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/*
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* SHA-1 context setup
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*/
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void utils_sha1_starts(iot_sha1_context *ctx)
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{
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ctx->total[0] = 0;
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ctx->total[1] = 0;
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ctx->state[0] = 0x67452301;
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ctx->state[1] = 0xEFCDAB89;
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ctx->state[2] = 0x98BADCFE;
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ctx->state[3] = 0x10325476;
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ctx->state[4] = 0xC3D2E1F0;
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}
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void utils_sha1_process(iot_sha1_context *ctx, const unsigned char data[64])
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{
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uint32_t temp, W[16], A, B, C, D, E;
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IOT_SHA1_GET_UINT32_BE(W[ 0], data, 0);
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IOT_SHA1_GET_UINT32_BE(W[ 1], data, 4);
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IOT_SHA1_GET_UINT32_BE(W[ 2], data, 8);
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IOT_SHA1_GET_UINT32_BE(W[ 3], data, 12);
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IOT_SHA1_GET_UINT32_BE(W[ 4], data, 16);
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IOT_SHA1_GET_UINT32_BE(W[ 5], data, 20);
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IOT_SHA1_GET_UINT32_BE(W[ 6], data, 24);
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IOT_SHA1_GET_UINT32_BE(W[ 7], data, 28);
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IOT_SHA1_GET_UINT32_BE(W[ 8], data, 32);
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IOT_SHA1_GET_UINT32_BE(W[ 9], data, 36);
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IOT_SHA1_GET_UINT32_BE(W[10], data, 40);
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IOT_SHA1_GET_UINT32_BE(W[11], data, 44);
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IOT_SHA1_GET_UINT32_BE(W[12], data, 48);
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IOT_SHA1_GET_UINT32_BE(W[13], data, 52);
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IOT_SHA1_GET_UINT32_BE(W[14], data, 56);
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IOT_SHA1_GET_UINT32_BE(W[15], data, 60);
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#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
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#define R(t) \
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( \
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temp = W[( t - 3 ) & 0x0F] ^ W[( t - 8 ) & 0x0F] ^ \
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W[( t - 14 ) & 0x0F] ^ W[ t & 0x0F], \
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( W[t & 0x0F] = S(temp,1) ) \
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)
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#define P(a,b,c,d,e,x) \
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{ \
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e += S(a,5) + F(b,c,d) + K + x; b = S(b,30); \
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}
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A = ctx->state[0];
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B = ctx->state[1];
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C = ctx->state[2];
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D = ctx->state[3];
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E = ctx->state[4];
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#define F(x,y,z) (z ^ (x & (y ^ z)))
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#define K 0x5A827999
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P(A, B, C, D, E, W[0]);
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P(E, A, B, C, D, W[1]);
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P(D, E, A, B, C, W[2]);
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P(C, D, E, A, B, W[3]);
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P(B, C, D, E, A, W[4]);
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P(A, B, C, D, E, W[5]);
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P(E, A, B, C, D, W[6]);
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P(D, E, A, B, C, W[7]);
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P(C, D, E, A, B, W[8]);
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P(B, C, D, E, A, W[9]);
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P(A, B, C, D, E, W[10]);
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P(E, A, B, C, D, W[11]);
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P(D, E, A, B, C, W[12]);
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P(C, D, E, A, B, W[13]);
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P(B, C, D, E, A, W[14]);
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P(A, B, C, D, E, W[15]);
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P(E, A, B, C, D, R(16));
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P(D, E, A, B, C, R(17));
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P(C, D, E, A, B, R(18));
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P(B, C, D, E, A, R(19));
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#undef K
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#undef F
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#define F(x,y,z) (x ^ y ^ z)
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#define K 0x6ED9EBA1
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P(A, B, C, D, E, R(20));
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P(E, A, B, C, D, R(21));
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P(D, E, A, B, C, R(22));
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P(C, D, E, A, B, R(23));
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P(B, C, D, E, A, R(24));
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P(A, B, C, D, E, R(25));
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P(E, A, B, C, D, R(26));
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P(D, E, A, B, C, R(27));
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P(C, D, E, A, B, R(28));
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P(B, C, D, E, A, R(29));
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P(A, B, C, D, E, R(30));
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P(E, A, B, C, D, R(31));
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P(D, E, A, B, C, R(32));
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P(C, D, E, A, B, R(33));
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P(B, C, D, E, A, R(34));
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P(A, B, C, D, E, R(35));
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P(E, A, B, C, D, R(36));
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P(D, E, A, B, C, R(37));
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P(C, D, E, A, B, R(38));
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P(B, C, D, E, A, R(39));
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#undef K
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#undef F
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#define F(x,y,z) ((x & y) | (z & (x | y)))
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#define K 0x8F1BBCDC
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P(A, B, C, D, E, R(40));
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P(E, A, B, C, D, R(41));
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P(D, E, A, B, C, R(42));
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P(C, D, E, A, B, R(43));
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P(B, C, D, E, A, R(44));
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P(A, B, C, D, E, R(45));
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P(E, A, B, C, D, R(46));
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P(D, E, A, B, C, R(47));
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P(C, D, E, A, B, R(48));
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P(B, C, D, E, A, R(49));
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P(A, B, C, D, E, R(50));
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P(E, A, B, C, D, R(51));
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P(D, E, A, B, C, R(52));
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P(C, D, E, A, B, R(53));
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P(B, C, D, E, A, R(54));
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P(A, B, C, D, E, R(55));
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P(E, A, B, C, D, R(56));
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P(D, E, A, B, C, R(57));
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P(C, D, E, A, B, R(58));
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P(B, C, D, E, A, R(59));
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#undef K
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#undef F
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#define F(x,y,z) (x ^ y ^ z)
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#define K 0xCA62C1D6
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P(A, B, C, D, E, R(60));
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P(E, A, B, C, D, R(61));
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P(D, E, A, B, C, R(62));
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P(C, D, E, A, B, R(63));
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P(B, C, D, E, A, R(64));
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P(A, B, C, D, E, R(65));
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P(E, A, B, C, D, R(66));
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P(D, E, A, B, C, R(67));
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P(C, D, E, A, B, R(68));
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P(B, C, D, E, A, R(69));
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P(A, B, C, D, E, R(70));
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P(E, A, B, C, D, R(71));
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P(D, E, A, B, C, R(72));
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P(C, D, E, A, B, R(73));
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P(B, C, D, E, A, R(74));
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P(A, B, C, D, E, R(75));
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P(E, A, B, C, D, R(76));
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P(D, E, A, B, C, R(77));
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P(C, D, E, A, B, R(78));
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P(B, C, D, E, A, R(79));
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#undef K
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#undef F
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ctx->state[0] += A;
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ctx->state[1] += B;
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ctx->state[2] += C;
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ctx->state[3] += D;
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ctx->state[4] += E;
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}
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/*
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* SHA-1 process buffer
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*/
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void utils_sha1_update(iot_sha1_context *ctx, const unsigned char *input, size_t ilen)
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{
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size_t fill;
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uint32_t left;
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if (ilen == 0) {
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return;
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}
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left = ctx->total[0] & 0x3F;
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fill = 64 - left;
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ctx->total[0] += (uint32_t) ilen;
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ctx->total[0] &= 0xFFFFFFFF;
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if (ctx->total[0] < (uint32_t) ilen) {
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ctx->total[1]++;
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}
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if (left && ilen >= fill) {
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memcpy((void *)(ctx->buffer + left), input, fill);
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utils_sha1_process(ctx, ctx->buffer);
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input += fill;
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ilen -= fill;
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left = 0;
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}
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while (ilen >= 64) {
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utils_sha1_process(ctx, input);
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input += 64;
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ilen -= 64;
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}
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if (ilen > 0) {
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memcpy((void *)(ctx->buffer + left), input, ilen);
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}
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}
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static const unsigned char iot_sha1_padding[64] = {
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0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
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};
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/*
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* SHA-1 final digest
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*/
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void utils_sha1_finish(iot_sha1_context *ctx, unsigned char output[20])
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{
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uint32_t last, padn;
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uint32_t high, low;
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unsigned char msglen[8];
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high = (ctx->total[0] >> 29)
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| (ctx->total[1] << 3);
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low = (ctx->total[0] << 3);
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IOT_SHA1_PUT_UINT32_BE(high, msglen, 0);
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IOT_SHA1_PUT_UINT32_BE(low, msglen, 4);
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last = ctx->total[0] & 0x3F;
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padn = (last < 56) ? (56 - last) : (120 - last);
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utils_sha1_update(ctx, iot_sha1_padding, padn);
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utils_sha1_update(ctx, msglen, 8);
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IOT_SHA1_PUT_UINT32_BE(ctx->state[0], output, 0);
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IOT_SHA1_PUT_UINT32_BE(ctx->state[1], output, 4);
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IOT_SHA1_PUT_UINT32_BE(ctx->state[2], output, 8);
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IOT_SHA1_PUT_UINT32_BE(ctx->state[3], output, 12);
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IOT_SHA1_PUT_UINT32_BE(ctx->state[4], output, 16);
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}
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/*
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* output = SHA-1( input buffer )
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*/
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void utils_sha1(const unsigned char *input, size_t ilen, unsigned char output[20])
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{
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iot_sha1_context ctx;
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utils_sha1_init(&ctx);
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utils_sha1_starts(&ctx);
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utils_sha1_update(&ctx, input, ilen);
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utils_sha1_finish(&ctx, output);
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utils_sha1_free(&ctx);
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}
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