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113 lines
2.8 KiB
C
113 lines
2.8 KiB
C
/*
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* SPDX-FileCopyrightText: 2010-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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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 "sdkconfig.h"
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/**
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* The MD5 functions calculate a 128-bit cryptographic digest for any number of input bytes.
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*/
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#define ESP_ROM_MD5_DIGEST_LEN 16
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#if CONFIG_IDF_TARGET_ESP32C2
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/**
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* \brief MD5 context structure
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*
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* \warning MD5 is considered a weak message digest and its use
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* constitutes a security risk. We recommend considering
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* stronger message digests instead.
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*
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*/
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typedef struct mbedtls_md5_context {
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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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unsigned char buffer[64]; /*!< data block being processed */
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} md5_context_t;
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/* Functions extracted from ROM, do not use it as an public API */
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void esp_rom_mbedtls_md5_starts_ret(md5_context_t *context);
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void esp_rom_mbedtls_md5_update_ret(md5_context_t *context, const void *buf, uint32_t len);
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void esp_rom_mbedtls_md5_finish_ret(md5_context_t *context, uint8_t *digest);
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/**
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* @brief Initialize the MD5 context
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*
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* @param context Context object allocated by user
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*/
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static inline void esp_rom_md5_init(md5_context_t *context)
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{
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esp_rom_mbedtls_md5_starts_ret(context);
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}
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/**
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* @brief Running MD5 algorithm over input data
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*
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* @param context MD5 context which has been initialized by `MD5Init`
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* @param buf Input buffer
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* @param len Buffer length in bytes
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*/
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static inline void esp_rom_md5_update(md5_context_t *context, const void *buf, uint32_t len)
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{
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esp_rom_mbedtls_md5_update_ret(context, buf, len);
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}
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/**
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* @brief Extract the MD5 result, and erase the context
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*
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* @param digest Where to store the 128-bit digest value
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* @param context MD5 context
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*/
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static inline void esp_rom_md5_final(uint8_t *digest, md5_context_t *context)
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{
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esp_rom_mbedtls_md5_finish_ret(context, digest);
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}
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#else //#if !CONFIG_IDF_TARGET_ESP32C2
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/**
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* @brief Type defined for MD5 context
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*
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*/
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typedef struct MD5Context {
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uint32_t buf[4];
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uint32_t bits[2];
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uint8_t in[64];
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} md5_context_t;
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/**
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* @brief Initialize the MD5 context
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*
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* @param context Context object allocated by user
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*/
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void esp_rom_md5_init(md5_context_t *context);
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/**
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* @brief Running MD5 algorithm over input data
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*
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* @param context MD5 context which has been initialized by `MD5Init`
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* @param buf Input buffer
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* @param len Buffer length in bytes
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*/
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void esp_rom_md5_update(md5_context_t *context, const void *buf, uint32_t len);
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/**
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* @brief Extract the MD5 result, and erase the context
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*
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* @param digest Where to store the 128-bit digest value
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* @param context MD5 context
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*/
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void esp_rom_md5_final(uint8_t *digest, md5_context_t *context);
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#endif
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#ifdef __cplusplus
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}
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#endif
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