mbed-os/features/mbedtls/targets/TARGET_Silicon_Labs/sha1_alt.h

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/**
* \file sha1_alt.h
*
* \brief SHA-1 cryptographic hash function
*
* Copyright (C) 2015-2016, Silicon Labs, http://www.silabs.com
* 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.
*/
#ifndef MBEDTLS_SHA1_ALT_H
#define MBEDTLS_SHA1_ALT_H
/***************************************************************************//**
* \addtogroup sl_crypto
* \{
******************************************************************************/
/***************************************************************************//**
* \addtogroup sl_crypto_sha1 SHA-1 cryptographic hash function
* \brief CRYPTO hardware accelerated SHA-1 cryptographic hash function.
* \{
******************************************************************************/
#if defined(MBEDTLS_SHA1_ALT)
#ifdef __cplusplus
extern "C" {
#endif
/**
* \brief SHA-1 context structure
*/
typedef struct
{
uint32_t state[8]; /*!< intermediate digest state */
uint32_t total[2]; /*!< number of bytes processed */
unsigned char buffer[64]; /*!< data block being processed */
}
mbedtls_sha1_context;
/**
* \brief Initialize SHA-1 context
*
* \param ctx SHA-1 context to be initialized
*/
void mbedtls_sha1_init( mbedtls_sha1_context *ctx );
/**
* \brief Clear SHA-1 context
*
* \param ctx SHA-1 context to be cleared
*/
void mbedtls_sha1_free( mbedtls_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 mbedtls_sha1_clone( mbedtls_sha1_context *dst,
const mbedtls_sha1_context *src );
/**
* \brief SHA-1 context setup
*
* \param ctx context to be initialized
*/
void mbedtls_sha1_starts( mbedtls_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 mbedtls_sha1_update( mbedtls_sha1_context *ctx, const unsigned char *input, size_t ilen );
/**
* \brief SHA-1 final digest
*
* \param ctx SHA-1 context
* \param output SHA-1 checksum result
*/
void mbedtls_sha1_finish( mbedtls_sha1_context *ctx, unsigned char output[20] );
/* Internal use */
void mbedtls_sha1_process( mbedtls_sha1_context *ctx, const unsigned char data[64] );
#ifdef __cplusplus
}
#endif
#endif /* #if defined(MBEDTLS_SHA1_ALT) */
/** \} (end addtogroup sl_crypto_sha1) */
/** \} (end addtogroup sl_crypto) */
#endif /* #ifndef MBEDTLS_SHA1_ALT_H */