]>
Commit | Line | Data |
---|---|---|
a04549cc DSH |
1 | /********************************************************************** |
2 | * md_gost.c * | |
3 | * Copyright (c) 2005-2006 Cryptocom LTD * | |
4 | * This file is distributed under the same license as OpenSSL * | |
5 | * * | |
6 | * OpenSSL interface to GOST R 34.11-94 hash functions * | |
7 | * Requires OpenSSL 0.9.9 for compilation * | |
8 | **********************************************************************/ | |
9 | #include <string.h> | |
926c41bd | 10 | #include "gost_lcl.h" |
a04549cc DSH |
11 | #include "gosthash.h" |
12 | #include "e_gost_err.h" | |
13 | ||
14 | /* implementation of GOST 34.11 hash function See gost_md.c*/ | |
15 | static int gost_digest_init(EVP_MD_CTX *ctx); | |
0f113f3e MC |
16 | static int gost_digest_update(EVP_MD_CTX *ctx, const void *data, |
17 | size_t count); | |
18 | static int gost_digest_final(EVP_MD_CTX *ctx, unsigned char *md); | |
19 | static int gost_digest_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from); | |
a04549cc DSH |
20 | static int gost_digest_cleanup(EVP_MD_CTX *ctx); |
21 | ||
0f113f3e MC |
22 | EVP_MD digest_gost = { |
23 | NID_id_GostR3411_94, | |
24 | NID_undef, | |
25 | 32, | |
26 | EVP_MD_FLAG_PKEY_METHOD_SIGNATURE, | |
27 | gost_digest_init, | |
28 | gost_digest_update, | |
29 | gost_digest_final, | |
30 | gost_digest_copy, | |
31 | gost_digest_cleanup, | |
32 | NULL, | |
33 | NULL, | |
34 | {NID_undef, NID_undef, 0, 0, 0}, | |
35 | 32, | |
36 | sizeof(struct ossl_gost_digest_ctx), | |
37 | NULL | |
38 | }; | |
a04549cc | 39 | |
0f113f3e MC |
40 | int gost_digest_init(EVP_MD_CTX *ctx) |
41 | { | |
42 | struct ossl_gost_digest_ctx *c = ctx->md_data; | |
43 | memset(&(c->dctx), 0, sizeof(gost_hash_ctx)); | |
44 | gost_init(&(c->cctx), &GostR3411_94_CryptoProParamSet); | |
45 | c->dctx.cipher_ctx = &(c->cctx); | |
46 | return 1; | |
47 | } | |
a04549cc | 48 | |
0f113f3e MC |
49 | int gost_digest_update(EVP_MD_CTX *ctx, const void *data, size_t count) |
50 | { | |
51 | return hash_block((gost_hash_ctx *) ctx->md_data, data, count); | |
52 | } | |
a04549cc | 53 | |
0f113f3e MC |
54 | int gost_digest_final(EVP_MD_CTX *ctx, unsigned char *md) |
55 | { | |
56 | return finish_hash((gost_hash_ctx *) ctx->md_data, md); | |
a04549cc | 57 | |
0f113f3e | 58 | } |
a04549cc | 59 | |
0f113f3e MC |
60 | int gost_digest_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from) |
61 | { | |
62 | struct ossl_gost_digest_ctx *md_ctx = to->md_data; | |
63 | if (to->md_data && from->md_data) { | |
64 | memcpy(to->md_data, from->md_data, | |
65 | sizeof(struct ossl_gost_digest_ctx)); | |
66 | md_ctx->dctx.cipher_ctx = &(md_ctx->cctx); | |
67 | } | |
68 | return 1; | |
69 | } | |
70 | ||
71 | int gost_digest_cleanup(EVP_MD_CTX *ctx) | |
72 | { | |
73 | if (ctx->md_data) | |
74 | memset(ctx->md_data, 0, sizeof(struct ossl_gost_digest_ctx)); | |
75 | return 1; | |
76 | } |