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-rw-r--r--src/lib/libcrypto/dsa/dsa_pmeth.c351
1 files changed, 0 insertions, 351 deletions
diff --git a/src/lib/libcrypto/dsa/dsa_pmeth.c b/src/lib/libcrypto/dsa/dsa_pmeth.c
deleted file mode 100644
index adc7319731..0000000000
--- a/src/lib/libcrypto/dsa/dsa_pmeth.c
+++ /dev/null
@@ -1,351 +0,0 @@
1/* $OpenBSD: dsa_pmeth.c,v 1.21 2024/10/19 14:39:44 tb Exp $ */
2/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 2006.
4 */
5/* ====================================================================
6 * Copyright (c) 2006 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 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
56 *
57 */
58
59#include <limits.h>
60#include <stdio.h>
61#include <stdlib.h>
62#include <string.h>
63
64#include <openssl/asn1t.h>
65#include <openssl/bn.h>
66#include <openssl/err.h>
67#include <openssl/evp.h>
68#include <openssl/x509.h>
69
70#include "bn_local.h"
71#include "dsa_local.h"
72#include "evp_local.h"
73
74/* DSA pkey context structure */
75
76typedef struct {
77 /* Parameter gen parameters */
78 int nbits; /* size of p in bits (default: 1024) */
79 int qbits; /* size of q in bits (default: 160) */
80 const EVP_MD *pmd; /* MD for parameter generation */
81 /* Keygen callback info */
82 int gentmp[2];
83 /* message digest */
84 const EVP_MD *md; /* MD for the signature */
85} DSA_PKEY_CTX;
86
87static int
88pkey_dsa_init(EVP_PKEY_CTX *ctx)
89{
90 DSA_PKEY_CTX *dctx;
91
92 dctx = malloc(sizeof(DSA_PKEY_CTX));
93 if (!dctx)
94 return 0;
95 dctx->nbits = 1024;
96 dctx->qbits = 160;
97 dctx->pmd = NULL;
98 dctx->md = NULL;
99
100 ctx->data = dctx;
101 ctx->keygen_info = dctx->gentmp;
102 ctx->keygen_info_count = 2;
103
104 return 1;
105}
106
107static int
108pkey_dsa_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
109{
110 DSA_PKEY_CTX *dctx, *sctx;
111
112 if (!pkey_dsa_init(dst))
113 return 0;
114 sctx = src->data;
115 dctx = dst->data;
116 dctx->nbits = sctx->nbits;
117 dctx->qbits = sctx->qbits;
118 dctx->pmd = sctx->pmd;
119 dctx->md = sctx->md;
120 return 1;
121}
122
123static void
124pkey_dsa_cleanup(EVP_PKEY_CTX *ctx)
125{
126 DSA_PKEY_CTX *dctx = ctx->data;
127
128 free(dctx);
129}
130
131static int
132pkey_dsa_sign(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *out_siglen,
133 const unsigned char *tbs, size_t tbslen)
134{
135 DSA *dsa = ctx->pkey->pkey.dsa;
136 DSA_PKEY_CTX *dctx = ctx->data;
137 unsigned int siglen;
138
139 *out_siglen = 0;
140
141 if (tbslen > INT_MAX)
142 return 0;
143
144 if (dctx->md != NULL) {
145 if (tbslen != EVP_MD_size(dctx->md))
146 return 0;
147 }
148
149 if (!DSA_sign(0, tbs, tbslen, sig, &siglen, dsa))
150 return 0;
151
152 *out_siglen = siglen;
153
154 return 1;
155}
156
157static int
158pkey_dsa_verify(EVP_PKEY_CTX *ctx, const unsigned char *sig, size_t siglen,
159 const unsigned char *tbs, size_t tbslen)
160{
161 DSA *dsa = ctx->pkey->pkey.dsa;
162 DSA_PKEY_CTX *dctx = ctx->data;
163
164 if (tbslen > INT_MAX || siglen > INT_MAX)
165 return 0;
166
167 if (dctx->md != NULL) {
168 if (tbslen != EVP_MD_size(dctx->md))
169 return 0;
170 }
171
172 return DSA_verify(0, tbs, tbslen, sig, siglen, dsa);
173}
174
175static int
176pkey_dsa_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
177{
178 DSA_PKEY_CTX *dctx = ctx->data;
179
180 switch (type) {
181 case EVP_PKEY_CTRL_DSA_PARAMGEN_BITS:
182 if (p1 < 256)
183 return -2;
184 dctx->nbits = p1;
185 return 1;
186
187 case EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS:
188 if (p1 != 160 && p1 != 224 && p1 && p1 != 256)
189 return -2;
190 dctx->qbits = p1;
191 return 1;
192
193 case EVP_PKEY_CTRL_DSA_PARAMGEN_MD:
194 switch (EVP_MD_type((const EVP_MD *)p2)) {
195 case NID_sha1:
196 case NID_sha224:
197 case NID_sha256:
198 break;
199 default:
200 DSAerror(DSA_R_INVALID_DIGEST_TYPE);
201 return 0;
202 }
203 dctx->md = p2;
204 return 1;
205
206 case EVP_PKEY_CTRL_MD:
207 /* ANSI X9.57 and NIST CSOR. */
208 switch (EVP_MD_type(p2)) {
209 case NID_sha1:
210 case NID_dsa:
211 case NID_dsaWithSHA:
212 case NID_sha224:
213 case NID_sha256:
214 case NID_sha384:
215 case NID_sha512:
216 case NID_sha3_224:
217 case NID_sha3_256:
218 case NID_sha3_384:
219 case NID_sha3_512:
220 break;
221 default:
222 DSAerror(DSA_R_INVALID_DIGEST_TYPE);
223 return 0;
224 }
225 dctx->md = p2;
226 return 1;
227
228 case EVP_PKEY_CTRL_GET_MD:
229 *(const EVP_MD **)p2 = dctx->md;
230 return 1;
231
232 case EVP_PKEY_CTRL_DIGESTINIT:
233 case EVP_PKEY_CTRL_PKCS7_SIGN:
234 case EVP_PKEY_CTRL_CMS_SIGN:
235 return 1;
236
237 case EVP_PKEY_CTRL_PEER_KEY:
238 DSAerror(EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
239 return -2;
240 default:
241 return -2;
242 }
243}
244
245static int
246pkey_dsa_ctrl_str(EVP_PKEY_CTX *ctx, const char *type, const char *value)
247{
248 const char *errstr;
249
250 if (!strcmp(type, "dsa_paramgen_bits")) {
251 int nbits;
252
253 nbits = strtonum(value, INT_MIN, INT_MAX, &errstr);
254 if (errstr != NULL)
255 return -2;
256 return EVP_PKEY_CTX_set_dsa_paramgen_bits(ctx, nbits);
257 } else if (!strcmp(type, "dsa_paramgen_q_bits")) {
258 int qbits;
259
260 qbits = strtonum(value, INT_MIN, INT_MAX, &errstr);
261 if (errstr != NULL)
262 return -2;
263 return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA,
264 EVP_PKEY_OP_PARAMGEN, EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS,
265 qbits, NULL);
266 } else if (!strcmp(type, "dsa_paramgen_md")) {
267 return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA,
268 EVP_PKEY_OP_PARAMGEN, EVP_PKEY_CTRL_DSA_PARAMGEN_MD, 0,
269 (void *)EVP_get_digestbyname(value));
270 }
271
272 return -2;
273}
274
275static int
276pkey_dsa_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
277{
278 DSA *dsa;
279 DSA_PKEY_CTX *dctx = ctx->data;
280 BN_GENCB *pcb = NULL;
281 BN_GENCB cb = {0};
282 int ret = 0;
283
284 if ((dsa = DSA_new()) == NULL)
285 goto err;
286 if (ctx->pkey_gencb != NULL) {
287 pcb = &cb;
288 evp_pkey_set_cb_translate(pcb, ctx);
289 }
290 if (!dsa_builtin_paramgen(dsa, dctx->nbits, dctx->qbits, dctx->pmd,
291 NULL, 0, NULL, NULL, NULL, pcb))
292 goto err;
293 if (!EVP_PKEY_assign_DSA(pkey, dsa))
294 goto err;
295 dsa = NULL;
296
297 ret = 1;
298
299 err:
300 DSA_free(dsa);
301
302 return ret;
303}
304
305static int
306pkey_dsa_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
307{
308 DSA *dsa = NULL;
309 int ret = 0;
310
311 if (ctx->pkey == NULL) {
312 DSAerror(DSA_R_NO_PARAMETERS_SET);
313 goto err;
314 }
315 if ((dsa = DSA_new()) == NULL)
316 goto err;
317 if (!EVP_PKEY_set1_DSA(pkey, dsa))
318 goto err;
319
320 if (!EVP_PKEY_copy_parameters(pkey, ctx->pkey))
321 goto err;
322 if (!DSA_generate_key(dsa))
323 goto err;
324
325 ret = 1;
326
327 err:
328 DSA_free(dsa);
329
330 return ret;
331}
332
333const EVP_PKEY_METHOD dsa_pkey_meth = {
334 .pkey_id = EVP_PKEY_DSA,
335 .flags = EVP_PKEY_FLAG_AUTOARGLEN,
336
337 .init = pkey_dsa_init,
338 .copy = pkey_dsa_copy,
339 .cleanup = pkey_dsa_cleanup,
340
341 .paramgen = pkey_dsa_paramgen,
342
343 .keygen = pkey_dsa_keygen,
344
345 .sign = pkey_dsa_sign,
346
347 .verify = pkey_dsa_verify,
348
349 .ctrl = pkey_dsa_ctrl,
350 .ctrl_str = pkey_dsa_ctrl_str
351};
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-05-06 21:41:21 +0000