1 /* $OpenBSD: m_gost2814789.c,v 1.3 2021/12/12 21:30:13 tb Exp $ */
2 /*
3 * Copyright (c) 2014 Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
4 * Copyright (c) 2005-2006 Cryptocom LTD
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
16 * distribution.
17 *
18 * 3. All advertising materials mentioning features or use of this
19 * software must display the following acknowledgment:
20 * "This product includes software developed by the OpenSSL Project
21 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
22 *
23 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
24 * endorse or promote products derived from this software without
25 * prior written permission. For written permission, please contact
26 * openssl-core@openssl.org.
27 *
28 * 5. Products derived from this software may not be called "OpenSSL"
29 * nor may "OpenSSL" appear in their names without prior written
30 * permission of the OpenSSL Project.
31 *
32 * 6. Redistributions of any form whatsoever must retain the following
33 * acknowledgment:
34 * "This product includes software developed by the OpenSSL Project
35 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
36 *
37 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
38 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
39 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
40 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
41 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
42 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
43 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
44 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
45 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
46 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
47 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
48 * OF THE POSSIBILITY OF SUCH DAMAGE.
49 * ====================================================================
50 */
51
52 #include <openssl/opensslconf.h>
53
54 #ifndef OPENSSL_NO_GOST
55
56 #include <openssl/evp.h>
57 #include <openssl/gost.h>
58 #include <openssl/objects.h>
59
60 #include "evp_locl.h"
61
62 static int
gost2814789_init(EVP_MD_CTX * ctx)63 gost2814789_init(EVP_MD_CTX *ctx)
64 {
65 return GOST2814789IMIT_Init(ctx->md_data,
66 NID_id_Gost28147_89_CryptoPro_A_ParamSet);
67 }
68
69 static int
gost2814789_update(EVP_MD_CTX * ctx,const void * data,size_t count)70 gost2814789_update(EVP_MD_CTX *ctx, const void *data, size_t count)
71 {
72 return GOST2814789IMIT_Update(ctx->md_data, data, count);
73 }
74
75 static int
gost2814789_final(EVP_MD_CTX * ctx,unsigned char * md)76 gost2814789_final(EVP_MD_CTX *ctx, unsigned char *md)
77 {
78 return GOST2814789IMIT_Final(md, ctx->md_data);
79 }
80
81 static int
gost2814789_md_ctrl(EVP_MD_CTX * ctx,int cmd,int p1,void * p2)82 gost2814789_md_ctrl(EVP_MD_CTX *ctx, int cmd, int p1, void *p2)
83 {
84 GOST2814789IMIT_CTX *gctx = ctx->md_data;
85
86 switch (cmd) {
87 case EVP_MD_CTRL_SET_KEY:
88 return Gost2814789_set_key(&gctx->cipher, p2, p1);
89 case EVP_MD_CTRL_GOST_SET_SBOX:
90 return Gost2814789_set_sbox(&gctx->cipher, p1);
91 }
92 return -2;
93 }
94
95 static const EVP_MD gost2814789imit_md = {
96 .type = NID_id_Gost28147_89_MAC,
97 .pkey_type = NID_undef,
98 .md_size = GOST2814789IMIT_LENGTH,
99 .flags = 0,
100 .init = gost2814789_init,
101 .update = gost2814789_update,
102 .final = gost2814789_final,
103 .block_size = GOST2814789IMIT_CBLOCK,
104 .ctx_size = sizeof(EVP_MD *) + sizeof(GOST2814789IMIT_CTX),
105 .md_ctrl = gost2814789_md_ctrl,
106 };
107
108 const EVP_MD *
EVP_gost2814789imit(void)109 EVP_gost2814789imit(void)
110 {
111 return (&gost2814789imit_md);
112 }
113 #endif
114