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-rw-r--r--src/lib/libcrypto/dsa/dsa_pmeth.c337
1 files changed, 0 insertions, 337 deletions
diff --git a/src/lib/libcrypto/dsa/dsa_pmeth.c b/src/lib/libcrypto/dsa/dsa_pmeth.c
deleted file mode 100644
index c7a2edfc94..0000000000
--- a/src/lib/libcrypto/dsa/dsa_pmeth.c
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@@ -1,337 +0,0 @@
1/* $OpenBSD: dsa_pmeth.c,v 1.10 2014/07/11 08:44:48 jsing 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 <string.h>
62
63#include <openssl/asn1t.h>
64#include <openssl/bn.h>
65#include <openssl/err.h>
66#include <openssl/evp.h>
67#include <openssl/x509.h>
68
69#include "dsa_locl.h"
70#include "evp_locl.h"
71
72/* DSA pkey context structure */
73
74typedef struct {
75 /* Parameter gen parameters */
76 int nbits; /* size of p in bits (default: 1024) */
77 int qbits; /* size of q in bits (default: 160) */
78 const EVP_MD *pmd; /* MD for parameter generation */
79 /* Keygen callback info */
80 int gentmp[2];
81 /* message digest */
82 const EVP_MD *md; /* MD for the signature */
83} DSA_PKEY_CTX;
84
85static int
86pkey_dsa_init(EVP_PKEY_CTX *ctx)
87{
88 DSA_PKEY_CTX *dctx;
89
90 dctx = malloc(sizeof(DSA_PKEY_CTX));
91 if (!dctx)
92 return 0;
93 dctx->nbits = 1024;
94 dctx->qbits = 160;
95 dctx->pmd = NULL;
96 dctx->md = NULL;
97
98 ctx->data = dctx;
99 ctx->keygen_info = dctx->gentmp;
100 ctx->keygen_info_count = 2;
101
102 return 1;
103}
104
105static int
106pkey_dsa_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
107{
108 DSA_PKEY_CTX *dctx, *sctx;
109
110 if (!pkey_dsa_init(dst))
111 return 0;
112 sctx = src->data;
113 dctx = dst->data;
114 dctx->nbits = sctx->nbits;
115 dctx->qbits = sctx->qbits;
116 dctx->pmd = sctx->pmd;
117 dctx->md = sctx->md;
118 return 1;
119}
120
121static void
122pkey_dsa_cleanup(EVP_PKEY_CTX *ctx)
123{
124 DSA_PKEY_CTX *dctx = ctx->data;
125
126 free(dctx);
127}
128
129static int
130pkey_dsa_sign(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
131 const unsigned char *tbs, size_t tbslen)
132{
133 int ret, type;
134 unsigned int sltmp;
135 DSA_PKEY_CTX *dctx = ctx->data;
136 DSA *dsa = ctx->pkey->pkey.dsa;
137
138 if (dctx->md)
139 type = EVP_MD_type(dctx->md);
140 else
141 type = NID_sha1;
142
143 ret = DSA_sign(type, tbs, tbslen, sig, &sltmp, dsa);
144
145 if (ret <= 0)
146 return ret;
147 *siglen = sltmp;
148 return 1;
149}
150
151static int
152pkey_dsa_verify(EVP_PKEY_CTX *ctx, const unsigned char *sig, size_t siglen,
153 const unsigned char *tbs, size_t tbslen)
154{
155 int ret, type;
156 DSA_PKEY_CTX *dctx = ctx->data;
157 DSA *dsa = ctx->pkey->pkey.dsa;
158
159 if (dctx->md)
160 type = EVP_MD_type(dctx->md);
161 else
162 type = NID_sha1;
163
164 ret = DSA_verify(type, tbs, tbslen, sig, siglen, dsa);
165
166 return ret;
167}
168
169static int
170pkey_dsa_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
171{
172 DSA_PKEY_CTX *dctx = ctx->data;
173
174 switch (type) {
175 case EVP_PKEY_CTRL_DSA_PARAMGEN_BITS:
176 if (p1 < 256)
177 return -2;
178 dctx->nbits = p1;
179 return 1;
180
181 case EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS:
182 if (p1 != 160 && p1 != 224 && p1 && p1 != 256)
183 return -2;
184 dctx->qbits = p1;
185 return 1;
186
187 case EVP_PKEY_CTRL_DSA_PARAMGEN_MD:
188 switch (EVP_MD_type((const EVP_MD *)p2)) {
189 case NID_sha1:
190 case NID_sha224:
191 case NID_sha256:
192 break;
193 default:
194 DSAerr(DSA_F_PKEY_DSA_CTRL, DSA_R_INVALID_DIGEST_TYPE);
195 return 0;
196 }
197 dctx->md = p2;
198 return 1;
199
200 case EVP_PKEY_CTRL_MD:
201 switch (EVP_MD_type((const EVP_MD *)p2)) {
202 case NID_sha1:
203 case NID_dsa:
204 case NID_dsaWithSHA:
205 case NID_sha224:
206 case NID_sha256:
207 case NID_sha384:
208 case NID_sha512:
209 break;
210 default:
211 DSAerr(DSA_F_PKEY_DSA_CTRL, DSA_R_INVALID_DIGEST_TYPE);
212 return 0;
213 }
214 dctx->md = p2;
215 return 1;
216
217 case EVP_PKEY_CTRL_DIGESTINIT:
218 case EVP_PKEY_CTRL_PKCS7_SIGN:
219 case EVP_PKEY_CTRL_CMS_SIGN:
220 return 1;
221
222 case EVP_PKEY_CTRL_PEER_KEY:
223 DSAerr(DSA_F_PKEY_DSA_CTRL,
224 EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
225 return -2;
226 default:
227 return -2;
228 }
229}
230
231static int
232pkey_dsa_ctrl_str(EVP_PKEY_CTX *ctx, const char *type, const char *value)
233{
234 long lval;
235 char *ep;
236
237 if (!strcmp(type, "dsa_paramgen_bits")) {
238 int nbits;
239
240 errno = 0;
241 lval = strtol(value, &ep, 10);
242 if (value[0] == '\0' || *ep != '\0')
243 goto not_a_number;
244 if ((errno == ERANGE &&
245 (lval == LONG_MAX || lval == LONG_MIN)) ||
246 (lval > INT_MAX || lval < INT_MIN))
247 goto out_of_range;
248 nbits = lval;
249 return EVP_PKEY_CTX_set_dsa_paramgen_bits(ctx, nbits);
250 } else if (!strcmp(type, "dsa_paramgen_q_bits")) {
251 int qbits;
252
253 errno = 0;
254 lval = strtol(value, &ep, 10);
255 if (value[0] == '\0' || *ep != '\0')
256 goto not_a_number;
257 if ((errno == ERANGE &&
258 (lval == LONG_MAX || lval == LONG_MIN)) ||
259 (lval > INT_MAX || lval < INT_MIN))
260 goto out_of_range;
261 qbits = lval;
262 return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA,
263 EVP_PKEY_OP_PARAMGEN, EVP_PKEY_CTRL_DSA_PARAMGEN_Q_BITS,
264 qbits, NULL);
265 } else if (!strcmp(type, "dsa_paramgen_md")) {
266 return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DSA,
267 EVP_PKEY_OP_PARAMGEN, EVP_PKEY_CTRL_DSA_PARAMGEN_MD, 0,
268 (void *)EVP_get_digestbyname(value));
269 }
270not_a_number:
271out_of_range:
272 return -2;
273}
274
275static int
276pkey_dsa_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
277{
278 DSA *dsa = NULL;
279 DSA_PKEY_CTX *dctx = ctx->data;
280 BN_GENCB *pcb, cb;
281 int ret;
282
283 if (ctx->pkey_gencb) {
284 pcb = &cb;
285 evp_pkey_set_cb_translate(pcb, ctx);
286 } else
287 pcb = NULL;
288 dsa = DSA_new();
289 if (!dsa)
290 return 0;
291 ret = dsa_builtin_paramgen(dsa, dctx->nbits, dctx->qbits, dctx->pmd,
292 NULL, 0, NULL, NULL, NULL, pcb);
293 if (ret)
294 EVP_PKEY_assign_DSA(pkey, dsa);
295 else
296 DSA_free(dsa);
297 return ret;
298}
299
300static int
301pkey_dsa_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
302{
303 DSA *dsa = NULL;
304
305 if (ctx->pkey == NULL) {
306 DSAerr(DSA_F_PKEY_DSA_KEYGEN, DSA_R_NO_PARAMETERS_SET);
307 return 0;
308 }
309 dsa = DSA_new();
310 if (!dsa)
311 return 0;
312 EVP_PKEY_assign_DSA(pkey, dsa);
313 /* Note: if error return, pkey is freed by parent routine */
314 if (!EVP_PKEY_copy_parameters(pkey, ctx->pkey))
315 return 0;
316 return DSA_generate_key(pkey->pkey.dsa);
317}
318
319const EVP_PKEY_METHOD dsa_pkey_meth = {
320 .pkey_id = EVP_PKEY_DSA,
321 .flags = EVP_PKEY_FLAG_AUTOARGLEN,
322
323 .init = pkey_dsa_init,
324 .copy = pkey_dsa_copy,
325 .cleanup = pkey_dsa_cleanup,
326
327 .paramgen = pkey_dsa_paramgen,
328
329 .keygen = pkey_dsa_keygen,
330
331 .sign = pkey_dsa_sign,
332
333 .verify = pkey_dsa_verify,
334
335 .ctrl = pkey_dsa_ctrl,
336 .ctrl_str = pkey_dsa_ctrl_str
337};
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