esp-idf/components/esp_rom/include/esp_rom_md5.h

66 wiersze
1.6 KiB
C

// Copyright 2010-2020 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
/**
* The MD5 functions calculate a 128-bit cryptographic digest for any number of input bytes.
*/
/**
* @brief Type defined for MD5 context
*
*/
typedef struct MD5Context {
uint32_t buf[4];
uint32_t bits[2];
uint8_t in[64];
} md5_context_t;
#define ESP_ROM_MD5_DIGEST_LEN 16
/**
* @brief Initialize the MD5 context
*
* @param context Context object allocated by user
*/
void esp_rom_md5_init(md5_context_t *context);
/**
* @brief Running MD5 algorithm over input data
*
* @param context MD5 context which has been initialized by `MD5Init`
* @param buf Input buffer
* @param len Buffer length in bytes
*/
void esp_rom_md5_update(md5_context_t *context, const void *buf, uint32_t len);
/**
* @brief Extract the MD5 result, and erase the context
*
* @param digest Where to store the 128-bit digest value
* @param context MD5 context
*/
void esp_rom_md5_final(uint8_t *digest, md5_context_t *context);
#ifdef __cplusplus
}
#endif