mirror of https://github.com/ARMmbed/mbed-os.git
85 lines
2.5 KiB
C
85 lines
2.5 KiB
C
/*
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* sha256_alt.c
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*
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* Copyright (C) 2018, Arm Limited, All Rights Reserved
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* 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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*/
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#include "mbedtls/sha256.h"
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#if defined(MBEDTLS_SHA256_ALT)
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#include <string.h>
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#include "mbedtls/platform.h"
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void mbedtls_sha256_init( mbedtls_sha256_context *ctx )
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{
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memset( ctx, 0, sizeof( mbedtls_sha256_context ) );
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}
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void mbedtls_sha256_free( mbedtls_sha256_context *ctx )
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{
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if( ctx == NULL )
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return;
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CRYS_HASH_Free( &ctx->crys_hash_ctx );
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memset( ctx, 0, sizeof( mbedtls_sha256_context ) );
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}
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void mbedtls_sha256_clone( mbedtls_sha256_context *dst,
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const mbedtls_sha256_context *src )
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{
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memcpy( dst, src, sizeof( mbedtls_sha256_context ) );
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}
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int mbedtls_sha256_starts_ret( mbedtls_sha256_context *ctx, int is224 )
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{
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if(CRYS_HASH_Init( &ctx->crys_hash_ctx, is224 ?
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CRYS_HASH_SHA224_mode : CRYS_HASH_SHA256_mode ) != CRYS_OK )
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return ( MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED );
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return ( 0 );
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}
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int mbedtls_internal_sha256_process( mbedtls_sha256_context *ctx,
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const unsigned char data[64] )
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{
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return( MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED );
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}
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int mbedtls_sha256_update_ret( mbedtls_sha256_context *ctx,
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const unsigned char *input,
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size_t ilen )
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{
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if( CRYS_HASH_Update( &ctx->crys_hash_ctx, (uint8_t*)input, ilen ) != CRYS_OK )
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return ( MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED );
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return ( 0 );
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}
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int mbedtls_sha256_finish_ret( mbedtls_sha256_context *ctx,
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unsigned char output[32] )
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{
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CRYSError_t crys_err = CRYS_OK;
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CRYS_HASH_Result_t crys_result = {0};
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crys_err = CRYS_HASH_Finish( &ctx->crys_hash_ctx, crys_result );
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if( crys_err == CRYS_OK )
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{
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memcpy( output, crys_result, 32 );
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return ( 0 );
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}
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else
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return ( MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED );
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}
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#endif //MBEDTLS_SHA256_ALT
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