summaryrefslogtreecommitdiff
path: root/src/lib/libcrypto/cmac/cm_pmeth.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/libcrypto/cmac/cm_pmeth.c')
-rw-r--r--src/lib/libcrypto/cmac/cm_pmeth.c217
1 files changed, 0 insertions, 217 deletions
diff --git a/src/lib/libcrypto/cmac/cm_pmeth.c b/src/lib/libcrypto/cmac/cm_pmeth.c
deleted file mode 100644
index 03538e204e..0000000000
--- a/src/lib/libcrypto/cmac/cm_pmeth.c
+++ /dev/null
@@ -1,217 +0,0 @@
1/* $OpenBSD: cm_pmeth.c,v 1.12 2023/12/28 21:56:12 tb Exp $ */
2/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 2010.
4 */
5/* ====================================================================
6 * Copyright (c) 2010 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 */
53
54#include <stdio.h>
55#include <string.h>
56
57#include <openssl/cmac.h>
58#include <openssl/evp.h>
59#include <openssl/x509.h>
60#include <openssl/x509v3.h>
61
62#include "evp_local.h"
63
64/* The context structure and "key" is simply a CMAC_CTX */
65
66static int
67pkey_cmac_init(EVP_PKEY_CTX *ctx)
68{
69 ctx->data = CMAC_CTX_new();
70 if (!ctx->data)
71 return 0;
72 ctx->keygen_info_count = 0;
73 return 1;
74}
75
76static int
77pkey_cmac_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
78{
79 if (!pkey_cmac_init(dst))
80 return 0;
81 if (!CMAC_CTX_copy(dst->data, src->data))
82 return 0;
83 return 1;
84}
85
86static void
87pkey_cmac_cleanup(EVP_PKEY_CTX *ctx)
88{
89 CMAC_CTX_free(ctx->data);
90}
91
92static int
93pkey_cmac_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
94{
95 CMAC_CTX *cmkey;
96 int ret = 0;
97
98 if ((cmkey = CMAC_CTX_new()) == NULL)
99 goto err;
100 if (!CMAC_CTX_copy(cmkey, ctx->data))
101 goto err;
102 if (!EVP_PKEY_assign(pkey, EVP_PKEY_CMAC, cmkey))
103 goto err;
104 cmkey = NULL;
105
106 ret = 1;
107
108 err:
109 CMAC_CTX_free(cmkey);
110
111 return ret;
112}
113
114static int
115int_update(EVP_MD_CTX *ctx, const void *data, size_t count)
116{
117 if (!CMAC_Update(ctx->pctx->data, data, count))
118 return 0;
119 return 1;
120}
121
122static int
123cmac_signctx_init(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx)
124{
125 EVP_MD_CTX_set_flags(mctx, EVP_MD_CTX_FLAG_NO_INIT);
126 mctx->update = int_update;
127 return 1;
128}
129
130static int
131cmac_signctx(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
132 EVP_MD_CTX *mctx)
133{
134 return CMAC_Final(ctx->data, sig, siglen);
135}
136
137static int
138pkey_cmac_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
139{
140 CMAC_CTX *cmctx = ctx->data;
141
142 switch (type) {
143 case EVP_PKEY_CTRL_SET_MAC_KEY:
144 if (!p2 || p1 < 0)
145 return 0;
146 if (!CMAC_Init(cmctx, p2, p1, NULL, NULL))
147 return 0;
148 break;
149
150 case EVP_PKEY_CTRL_CIPHER:
151 if (!CMAC_Init(cmctx, NULL, 0, p2, NULL))
152 return 0;
153 break;
154
155 case EVP_PKEY_CTRL_MD:
156 if (ctx->pkey && !CMAC_CTX_copy(ctx->data, ctx->pkey->pkey.ptr))
157 return 0;
158 if (!CMAC_Init(cmctx, NULL, 0, NULL, NULL))
159 return 0;
160 break;
161
162 default:
163 return -2;
164 }
165 return 1;
166}
167
168static int
169pkey_cmac_ctrl_str(EVP_PKEY_CTX *ctx, const char *type, const char *value)
170{
171 if (!value)
172 return 0;
173 if (!strcmp(type, "key")) {
174 void *p = (void *)value;
175 return pkey_cmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY,
176 strlen(p), p);
177 }
178 if (!strcmp(type, "cipher")) {
179 const EVP_CIPHER *c;
180
181 c = EVP_get_cipherbyname(value);
182 if (!c)
183 return 0;
184 return pkey_cmac_ctrl(ctx, EVP_PKEY_CTRL_CIPHER, -1, (void *)c);
185 }
186 if (!strcmp(type, "hexkey")) {
187 unsigned char *key;
188 int r;
189 long keylen;
190
191 key = string_to_hex(value, &keylen);
192 if (!key)
193 return 0;
194 r = pkey_cmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, keylen, key);
195 free(key);
196 return r;
197 }
198
199 return -2;
200}
201
202const EVP_PKEY_METHOD cmac_pkey_meth = {
203 .pkey_id = EVP_PKEY_CMAC,
204 .flags = EVP_PKEY_FLAG_SIGCTX_CUSTOM,
205
206 .init = pkey_cmac_init,
207 .copy = pkey_cmac_copy,
208 .cleanup = pkey_cmac_cleanup,
209
210 .keygen = pkey_cmac_keygen,
211
212 .signctx_init = cmac_signctx_init,
213 .signctx = cmac_signctx,
214
215 .ctrl = pkey_cmac_ctrl,
216 .ctrl_str = pkey_cmac_ctrl_str
217};
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-12-23 13:36:43 +0000