95 lines
2.5 KiB
C
95 lines
2.5 KiB
C
/**
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* @copyright
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*
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* Tencent is pleased to support the open source community by making IoT Hub available.
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* Copyright(C) 2018 - 2021 THL A29 Limited, a Tencent company.All rights reserved.
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*
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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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*
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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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* @file utils_md5.h
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* @brief
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* @author fancyxu (fancyxu@tencent.com)
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* @version 1.0
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* @date 2021-10-20
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*
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* @par Change Log:
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* <table>
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* <tr><th>Date <th>Version <th>Author <th>Description
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* <tr><td>2021-10-20 <td>1.0 <td>fancyxu <td>first commit
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* </table>
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*/
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#ifndef IOT_HUB_DEVICE_C_SDK_COMMON_CRYPTOLOGY_INC_UTILS_MD5_H_
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#define IOT_HUB_DEVICE_C_SDK_COMMON_CRYPTOLOGY_INC_UTILS_MD5_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include "qcloud_iot_config.h"
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#ifdef AUTH_WITH_NO_TLS
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typedef struct {
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uint32_t total[2]; /**< number of bytes processed */
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uint32_t state[4]; /**< intermediate digest state */
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uint8_t buffer[64]; /**< data block being processed */
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char md5sum[33]; /**< md5sum result in hex string */
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} IotMd5Context;
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#else
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#include "mbedtls/md5.h"
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typedef struct {
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mbedtls_md5_context ctx;
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char md5sum[33]; /**< md5sum result in hex string */
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} IotMd5Context;
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#endif
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/**
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* @brief Reset MD5 context.
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*
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* @param[in,out] ctx MD5 context
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*/
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void utils_md5_reset(IotMd5Context *ctx);
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/**
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* @brief MD5 update.
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*
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* @param[in,out] ctx MD5 context
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* @param[in] input input data
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* @param[in] ilen data length
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*/
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void utils_md5_update(IotMd5Context *ctx, const uint8_t *input, size_t ilen);
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/**
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* @brief Finish MD5 calculation, result will store in md5sum.
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*
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* @param[in,out] ctx MD5 context
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*/
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void utils_md5_finish(IotMd5Context *ctx);
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/**
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* @brief Compare md5sum with context.
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*
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* @param[in,out] ctx MD5 context
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* @param[in] md5sum md5sum to compare
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* @return 0 for the same
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*/
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int utils_md5_compare(IotMd5Context *ctx, const char md5sum[33]);
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#ifdef __cplusplus
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}
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#endif
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#endif // IOT_HUB_DEVICE_C_SDK_COMMON_CRYPTOLOGY_INC_UTILS_MD5_H_
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