WiiUDownloader/cdecrypt/sha1.h
2023-07-18 12:27:23 +02:00

107 lines
2.7 KiB
C

/**
* \file sha1.h
*
* \brief SHA-1 cryptographic hash function
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* 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.
*
* This file is part of mbed TLS (https://tls.mbed.org) and was downloaded from
* https://github.com/Secure-Embedded-Systems/RSA-example/tree/master/include/.
*/
#ifndef SHA1_H
#define SHA1_H
#include <stddef.h>
#include <stdint.h>
#define SHA_DIGEST_LENGTH 20
#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 */
uint8_t buffer[64]; /*!< data block being processed */
} sha1_context;
/**
* \brief Initialize SHA-1 context
*
* \param ctx SHA-1 context to be initialized
*/
void sha1_init(sha1_context *ctx);
/**
* \brief Clear SHA-1 context
*
* \param ctx SHA-1 context to be cleared
*/
void sha1_free(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 sha1_clone(sha1_context *dst, const sha1_context *src);
/**
* \brief SHA-1 context setup
*
* \param ctx context to be initialized
*/
void sha1_starts(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 sha1_update(sha1_context *ctx, const uint8_t *input, size_t ilen);
/**
* \brief SHA-1 final digest
*
* \param ctx SHA-1 context
* \param output SHA-1 checksum result
*/
void sha1_finish(sha1_context *ctx, uint8_t output[SHA_DIGEST_LENGTH]);
/* Internal use */
void sha1_process(sha1_context *ctx, const uint8_t data[64]);
/**
* \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 sha1(const uint8_t *input, size_t ilen, uint8_t output[SHA_DIGEST_LENGTH]);
#ifdef __cplusplus
}
#endif
#endif /* sha1.h */