1 /**
2 * \file md_wrap.c
3 *
4 * \brief Generic message digest wrapper for mbed TLS
5 *
6 * \author Adriaan de Jong <dejong@fox-it.com>
7 *
8 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
9 * Copyright (C) 2018-2022, Intel Corporation.
10 * SPDX-License-Identifier: Apache-2.0
11 *
12 * Licensed under the Apache License, Version 2.0 (the "License"); you may
13 * not use this file except in compliance with the License.
14 * You may obtain a copy of the License at
15 *
16 * http://www.apache.org/licenses/LICENSE-2.0
17 *
18 * Unless required by applicable law or agreed to in writing, software
19 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
20 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
21 * See the License for the specific language governing permissions and
22 * limitations under the License.
23 *
24 * This file is part of mbed TLS (https://tls.mbed.org)
25 */
26
27 #include "md_internal.h"
28 #include "sha256.h"
29
30 /*
31 * Wrappers for generic message digests
32 */
33
sha256_update_wrap(void * ctx,const uint8_t * input,size_t ilen)34 static int32_t sha256_update_wrap( void *ctx, const uint8_t *input,
35 size_t ilen )
36 {
37 return( mbedtls_sha256_update_ret( (mbedtls_sha256_context *) ctx,
38 input, ilen ) );
39 }
40
sha256_finish_wrap(void * ctx,uint8_t * output)41 static int32_t sha256_finish_wrap( void *ctx, uint8_t *output )
42 {
43 return( mbedtls_sha256_finish_ret( (mbedtls_sha256_context *) ctx,
44 output ) );
45 }
46
sha256_clone_wrap(void * dst,const void * src)47 static void sha256_clone_wrap( void *dst, const void *src )
48 {
49 mbedtls_sha256_clone( (mbedtls_sha256_context *) dst,
50 (const mbedtls_sha256_context *) src );
51 }
52
sha256_process_wrap(void * ctx,const uint8_t * data)53 static int32_t sha256_process_wrap( void *ctx, const uint8_t *data )
54 {
55 return( mbedtls_internal_sha256_process( (mbedtls_sha256_context *) ctx,
56 data ) );
57 }
58
sha256_starts_wrap(void * ctx)59 static int32_t sha256_starts_wrap( void *ctx )
60 {
61 return( mbedtls_sha256_starts_ret( (mbedtls_sha256_context *) ctx, 0 ) );
62 }
63
sha256_wrap(const uint8_t * input,size_t ilen,uint8_t * output)64 static int32_t sha256_wrap( const uint8_t *input, size_t ilen,
65 uint8_t *output )
66 {
67 return( mbedtls_sha256_ret( input, ilen, output, 0 ) );
68 }
69
70 const mbedtls_md_info_t mbedtls_sha256_info = {
71 MBEDTLS_MD_SHA256,
72 "SHA256",
73 32,
74 64U,
75 sha256_starts_wrap,
76 sha256_update_wrap,
77 sha256_finish_wrap,
78 sha256_wrap,
79 sha256_clone_wrap,
80 sha256_process_wrap,
81 };
82