1 /**********************************************************************
3 * Copyright (c) 2013 Cryptocom LTD. *
4 * This file is distributed under the same license as OpenSSL *
6 * GOST R 34.11-2012 interface to OpenSSL engine. *
8 * Author: Alexey Degtyarev <alexey@renatasystems.org> *
10 **********************************************************************/
12 #include <openssl/evp.h>
13 #include "gosthash2012.h"
15 static int gost_digest_init512(EVP_MD_CTX *ctx);
16 static int gost_digest_init256(EVP_MD_CTX *ctx);
17 static int gost_digest_update(EVP_MD_CTX *ctx, const void *data,
19 static int gost_digest_final(EVP_MD_CTX *ctx, unsigned char *md);
20 static int gost_digest_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from);
21 static int gost_digest_cleanup(EVP_MD_CTX *ctx);
23 EVP_MD digest_gost2012_512 = {
24 NID_id_GostR3411_2012_512,
27 EVP_MD_FLAG_PKEY_METHOD_SIGNATURE,
35 {NID_undef, NID_undef, 0, 0, 0},
37 sizeof(gost2012_hash_ctx),
41 EVP_MD digest_gost2012_256 = {
42 NID_id_GostR3411_2012_256,
45 EVP_MD_FLAG_PKEY_METHOD_SIGNATURE,
53 {NID_undef, NID_undef, 0, 0, 0},
55 sizeof(gost2012_hash_ctx),
59 static int gost_digest_init512(EVP_MD_CTX *ctx)
61 init_gost2012_hash_ctx((gost2012_hash_ctx *) ctx->md_data, 512);
65 static int gost_digest_init256(EVP_MD_CTX *ctx)
67 init_gost2012_hash_ctx((gost2012_hash_ctx *) ctx->md_data, 256);
71 static int gost_digest_update(EVP_MD_CTX *ctx, const void *data, size_t count)
73 gost2012_hash_block((gost2012_hash_ctx *) ctx->md_data, data, count);
77 static int gost_digest_final(EVP_MD_CTX *ctx, unsigned char *md)
79 gost2012_finish_hash((gost2012_hash_ctx *) ctx->md_data, md);
83 static int gost_digest_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from)
85 if (to->md_data && from->md_data)
86 memcpy(to->md_data, from->md_data, sizeof(*(from->md_data)));
91 static int gost_digest_cleanup(EVP_MD_CTX *ctx)
94 memset(ctx->md_data, 0x00, sizeof(gost2012_hash_ctx));