mirror of https://github.com/ARMmbed/mbed-os.git
120 lines
3.3 KiB
C
120 lines
3.3 KiB
C
/*
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* mbed Microcontroller Library
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* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
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* Copyright (C) 2019 Cypress Semiconductor Corporation
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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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* \file sha512_alt.c
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* \version 1.0
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*
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* \brief Source file - wrapper for mbedtls SHA512 HW acceleration
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*
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*/
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#if defined(MBEDTLS_CONFIG_FILE)
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#include MBEDTLS_CONFIG_FILE
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#else
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#include "config.h"
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#endif
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#if defined(MBEDTLS_SHA512_C)
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#include "mbedtls/sha512.h"
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#include "mbedtls/platform_util.h"
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#include <string.h>
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#if defined(MBEDTLS_SHA512_ALT)
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/* Parameter validation macros based on platform_util.h */
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#define SHA512_VALIDATE_RET(cond) \
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MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_SHA512_BAD_INPUT_DATA )
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#define SHA512_VALIDATE(cond) MBEDTLS_INTERNAL_VALIDATE( cond )
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void mbedtls_sha512_init( mbedtls_sha512_context *ctx )
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{
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SHA512_VALIDATE( ctx != NULL );
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cy_hw_sha_init(ctx, sizeof( mbedtls_sha512_context ));
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}
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void mbedtls_sha512_free( mbedtls_sha512_context *ctx )
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{
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if (ctx == NULL)
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return;
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cy_hw_sha_free(ctx, sizeof( mbedtls_sha512_context ));
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}
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void mbedtls_sha512_clone( mbedtls_sha512_context *dst, const mbedtls_sha512_context *src )
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{
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SHA512_VALIDATE( dst != NULL );
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SHA512_VALIDATE( src != NULL );
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cy_hw_sha_clone(dst, src, sizeof(mbedtls_sha512_context), &dst->hashState, &dst->shaBuffers);
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}
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/*
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* SHA-512 context setup
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*/
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int mbedtls_sha512_starts_ret( mbedtls_sha512_context *ctx, int is384)
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{
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SHA512_VALIDATE_RET( ctx != NULL );
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SHA512_VALIDATE_RET( is384 == 0 || is384 == 1 );
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return cy_hw_sha_start(&ctx->obj, &ctx->hashState,
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( is384 == 0 ) ? CY_CRYPTO_MODE_SHA512 : CY_CRYPTO_MODE_SHA384,
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&ctx->shaBuffers);
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}
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/*
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* SHA-512 process buffer
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*/
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int mbedtls_sha512_update_ret( mbedtls_sha512_context *ctx, const unsigned char *input, size_t ilen )
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{
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SHA512_VALIDATE_RET( ctx != NULL );
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SHA512_VALIDATE_RET( ilen == 0 || input != NULL );
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if (ilen == 0)
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return (0);
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return cy_hw_sha_update(&ctx->obj, &ctx->hashState, input, ilen);
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}
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/*
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* SHA-512 final digest
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*/
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int mbedtls_sha512_finish_ret( mbedtls_sha512_context *ctx, unsigned char output[64] )
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{
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SHA512_VALIDATE_RET( ctx != NULL );
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SHA512_VALIDATE_RET( (unsigned char *)output != NULL );
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return cy_hw_sha_finish(&ctx->obj, &ctx->hashState, output);
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}
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int mbedtls_internal_sha512_process( mbedtls_sha512_context *ctx, const unsigned char data[128] )
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{
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SHA512_VALIDATE_RET( ctx != NULL );
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SHA512_VALIDATE_RET( (const unsigned char *)data != NULL );
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return cy_hw_sha_process(&ctx->obj, &ctx->hashState, data);
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}
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#endif /* MBEDTLS_SHA512_ALT */
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#endif /* MBEDTLS_SHA512_C */
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