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dsa_ameth.c

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1/* $OpenBSD: dsa_ameth.c,v 1.26 2018/08/24 20:22:15 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 <stdio.h>-
60-
61#include <openssl/opensslconf.h>-
62-
63#include <openssl/asn1.h>-
64#include <openssl/bn.h>-
65#include <openssl/dsa.h>-
66#include <openssl/err.h>-
67#include <openssl/x509.h>-
68-
69#include "asn1_locl.h"-
70#include "bn_lcl.h"-
71-
72static int-
73dsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)-
74{-
75 const unsigned char *p, *pm;-
76 int pklen, pmlen;-
77 int ptype;-
78 const void *pval;-
79 const ASN1_STRING *pstr;-
80 X509_ALGOR *palg;-
81 ASN1_INTEGER *public_key = NULL;-
82-
83 DSA *dsa = NULL;-
84-
85 if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, &palg, pubkey))
!X509_PUBKEY_g...&palg, pubkey)Description
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-2
86 return 0;
never executed: return 0;
0
87 X509_ALGOR_get0(NULL, &ptype, &pval, palg);-
88-
89 if (ptype == V_ASN1_SEQUENCE) {
ptype == 16Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
0-2
90 pstr = pval; -
91 pm = pstr->data;-
92 pmlen = pstr->length;-
93-
94 if (!(dsa = d2i_DSAparams(NULL, &pm, pmlen))) {
!(dsa = d2i_DS..., &pm, pmlen))Description
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-2
95 DSAerror(DSA_R_DECODE_ERROR);-
96 goto err;
never executed: goto err;
0
97 }-
98 } else if (ptype == V_ASN1_NULL || ptype == V_ASN1_UNDEF) {
executed 2 times by 1 test: end of block
Executed by:
  • libcrypto.so.44.0.1
ptype == 5Description
TRUEnever evaluated
FALSEnever evaluated
ptype == -1Description
TRUEnever evaluated
FALSEnever evaluated
0-2
99 if (!(dsa = DSA_new())) {
!(dsa = DSA_new())Description
TRUEnever evaluated
FALSEnever evaluated
0
100 DSAerror(ERR_R_MALLOC_FAILURE);-
101 goto err;
never executed: goto err;
0
102 }-
103 } else {
never executed: end of block
0
104 DSAerror(DSA_R_PARAMETER_ENCODING_ERROR);-
105 goto err;
never executed: goto err;
0
106 }-
107-
108 if (!(public_key=d2i_ASN1_INTEGER(NULL, &p, pklen))) {
!(public_key=d... , &p, pklen))Description
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-2
109 DSAerror(DSA_R_DECODE_ERROR);-
110 goto err;
never executed: goto err;
0
111 }-
112-
113 if (!(dsa->pub_key = ASN1_INTEGER_to_BN(public_key, NULL))) {
!(dsa->pub_key...((void *)0) ))Description
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-2
114 DSAerror(DSA_R_BN_DECODE_ERROR);-
115 goto err;
never executed: goto err;
0
116 }-
117-
118 ASN1_INTEGER_free(public_key);-
119 EVP_PKEY_assign_DSA(pkey, dsa);-
120 return 1;
executed 2 times by 1 test: return 1;
Executed by:
  • libcrypto.so.44.0.1
2
121-
122err:-
123 if (public_key)
public_keyDescription
TRUEnever evaluated
FALSEnever evaluated
0
124 ASN1_INTEGER_free(public_key);
never executed: ASN1_INTEGER_free(public_key);
0
125 DSA_free(dsa);-
126 return 0;
never executed: return 0;
0
127}-
128-
129static int-
130dsa_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)-
131{-
132 DSA *dsa;-
133 void *pval = NULL;-
134 int ptype;-
135 unsigned char *penc = NULL;-
136 int penclen;-
137-
138 dsa = pkey->pkey.dsa;-
139 if (pkey->save_parameters && dsa->p && dsa->q && dsa->g) {
pkey->save_parametersDescription
TRUEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
dsa->pDescription
TRUEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
dsa->qDescription
TRUEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
dsa->gDescription
TRUEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
0-2
140 ASN1_STRING *str;-
141-
142 str = ASN1_STRING_new();-
143 if (str == NULL) {
str == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-2
144 DSAerror(ERR_R_MALLOC_FAILURE);-
145 goto err;
never executed: goto err;
0
146 }-
147 str->length = i2d_DSAparams(dsa, &str->data);-
148 if (str->length <= 0) {
str->length <= 0Description
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-2
149 DSAerror(ERR_R_MALLOC_FAILURE);-
150 ASN1_STRING_free(str);-
151 goto err;
never executed: goto err;
0
152 }-
153 pval = str;-
154 ptype = V_ASN1_SEQUENCE;-
155 } else
executed 2 times by 1 test: end of block
Executed by:
  • libcrypto.so.44.0.1
2
156 ptype = V_ASN1_UNDEF;
never executed: ptype = -1;
0
157-
158 dsa->write_params = 0;-
159-
160 penclen = i2d_DSAPublicKey(dsa, &penc);-
161-
162 if (penclen <= 0) {
penclen <= 0Description
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-2
163 DSAerror(ERR_R_MALLOC_FAILURE);-
164 goto err;
never executed: goto err;
0
165 }-
166-
167 if (X509_PUBKEY_set0_param(pk, OBJ_nid2obj(EVP_PKEY_DSA), ptype, pval,
X509_PUBKEY_se...penc, penclen)Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
0-2
168 penc, penclen))
X509_PUBKEY_se...penc, penclen)Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
0-2
169 return 1;
executed 2 times by 1 test: return 1;
Executed by:
  • libcrypto.so.44.0.1
2
170-
171err:
code before this statement never executed: err:
0
172 free(penc);-
173 ASN1_STRING_free(pval);-
174-
175 return 0;
never executed: return 0;
0
176}-
177-
178/* In PKCS#8 DSA: you just get a private key integer and parameters in the-
179 * AlgorithmIdentifier the pubkey must be recalculated.-
180 */-
181static int-
182dsa_priv_decode(EVP_PKEY *pkey, const PKCS8_PRIV_KEY_INFO *p8)-
183{-
184 const unsigned char *p, *pm;-
185 int pklen, pmlen;-
186 int ptype;-
187 const void *pval;-
188 const ASN1_STRING *pstr;-
189 const X509_ALGOR *palg;-
190 ASN1_INTEGER *privkey = NULL;-
191 BN_CTX *ctx = NULL;-
192 DSA *dsa = NULL;-
193-
194 int ret = 0;-
195-
196 if (!PKCS8_pkey_get0(NULL, &p, &pklen, &palg, p8))
!PKCS8_pkey_ge...en, &palg, p8)Description
TRUEnever evaluated
FALSEnever evaluated
0
197 return 0;
never executed: return 0;
0
198 X509_ALGOR_get0(NULL, &ptype, &pval, palg);-
199 if (ptype != V_ASN1_SEQUENCE)
ptype != 16Description
TRUEnever evaluated
FALSEnever evaluated
0
200 goto decerr;
never executed: goto decerr;
0
201-
202 if ((privkey = d2i_ASN1_INTEGER(NULL, &p, pklen)) == NULL)
(privkey = d2i...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
203 goto decerr;
never executed: goto decerr;
0
204 if (privkey->type == V_ASN1_NEG_INTEGER)
privkey->type == (2 | 0x100)Description
TRUEnever evaluated
FALSEnever evaluated
0
205 goto decerr;
never executed: goto decerr;
0
206-
207 pstr = pval;-
208 pm = pstr->data;-
209 pmlen = pstr->length;-
210 if (!(dsa = d2i_DSAparams(NULL, &pm, pmlen)))
!(dsa = d2i_DS..., &pm, pmlen))Description
TRUEnever evaluated
FALSEnever evaluated
0
211 goto decerr;
never executed: goto decerr;
0
212 /* We have parameters now set private key */-
213 if (!(dsa->priv_key = ASN1_INTEGER_to_BN(privkey, NULL))) {
!(dsa->priv_ke...((void *)0) ))Description
TRUEnever evaluated
FALSEnever evaluated
0
214 DSAerror(DSA_R_BN_ERROR);-
215 goto dsaerr;
never executed: goto dsaerr;
0
216 }-
217 /* Calculate public key */-
218 if (!(dsa->pub_key = BN_new())) {
!(dsa->pub_key = BN_new())Description
TRUEnever evaluated
FALSEnever evaluated
0
219 DSAerror(ERR_R_MALLOC_FAILURE);-
220 goto dsaerr;
never executed: goto dsaerr;
0
221 }-
222 if (!(ctx = BN_CTX_new())) {
!(ctx = BN_CTX_new())Description
TRUEnever evaluated
FALSEnever evaluated
0
223 DSAerror(ERR_R_MALLOC_FAILURE);-
224 goto dsaerr;
never executed: goto dsaerr;
0
225 }-
226-
227 if (!BN_mod_exp_ct(dsa->pub_key, dsa->g, dsa->priv_key, dsa->p, ctx)) {
!BN_mod_exp_ct..., dsa->p, ctx)Description
TRUEnever evaluated
FALSEnever evaluated
0
228 DSAerror(DSA_R_BN_ERROR);-
229 goto dsaerr;
never executed: goto dsaerr;
0
230 }-
231-
232 if (!EVP_PKEY_assign_DSA(pkey, dsa))
!EVP_PKEY_assi...(char *)(dsa))Description
TRUEnever evaluated
FALSEnever evaluated
0
233 goto decerr;
never executed: goto decerr;
0
234-
235 ret = 1;-
236 goto done;
never executed: goto done;
0
237-
238decerr:-
239 DSAerror(DSA_R_DECODE_ERROR);-
240dsaerr:
code before this statement never executed: dsaerr:
0
241 DSA_free(dsa);-
242done:
code before this statement never executed: done:
0
243 BN_CTX_free(ctx);-
244 ASN1_INTEGER_free(privkey);-
245 return ret;
never executed: return ret;
0
246}-
247-
248static int-
249dsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)-
250{-
251 ASN1_STRING *params = NULL;-
252 ASN1_INTEGER *prkey = NULL;-
253 unsigned char *dp = NULL;-
254 int dplen;-
255-
256 params = ASN1_STRING_new();-
257 if (!params) {
!paramsDescription
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-1
258 DSAerror(ERR_R_MALLOC_FAILURE);-
259 goto err;
never executed: goto err;
0
260 }-
261-
262 params->length = i2d_DSAparams(pkey->pkey.dsa, &params->data);-
263 if (params->length <= 0) {
params->length <= 0Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-1
264 DSAerror(ERR_R_MALLOC_FAILURE);-
265 goto err;
never executed: goto err;
0
266 }-
267 params->type = V_ASN1_SEQUENCE;-
268-
269 /* Get private key into integer */-
270 prkey = BN_to_ASN1_INTEGER(pkey->pkey.dsa->priv_key, NULL);-
271 if (!prkey) {
!prkeyDescription
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-1
272 DSAerror(DSA_R_BN_ERROR);-
273 goto err;
never executed: goto err;
0
274 }-
275-
276 dplen = i2d_ASN1_INTEGER(prkey, &dp);-
277-
278 ASN1_INTEGER_free(prkey);-
279 prkey = NULL;-
280-
281 if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_dsa), 0, V_ASN1_SEQUENCE,
!PKCS8_pkey_se...ms, dp, dplen)Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-1
282 params, dp, dplen))
!PKCS8_pkey_se...ms, dp, dplen)Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-1
283 goto err;
never executed: goto err;
0
284-
285 return 1;
executed 1 time by 1 test: return 1;
Executed by:
  • libcrypto.so.44.0.1
1
286-
287err:-
288 free(dp);-
289 ASN1_STRING_free(params);-
290 ASN1_INTEGER_free(prkey);-
291 return 0;
never executed: return 0;
0
292}-
293-
294static int-
295int_dsa_size(const EVP_PKEY *pkey)-
296{-
297 return DSA_size(pkey->pkey.dsa);
executed 2 times by 1 test: return DSA_size(pkey->pkey.dsa);
Executed by:
  • libcrypto.so.44.0.1
2
298}-
299-
300static int-
301dsa_bits(const EVP_PKEY *pkey)-
302{-
303 return BN_num_bits(pkey->pkey.dsa->p);
executed 1 time by 1 test: return BN_num_bits(pkey->pkey.dsa->p);
Executed by:
  • libcrypto.so.44.0.1
1
304}-
305-
306static int-
307dsa_missing_parameters(const EVP_PKEY *pkey)-
308{-
309 DSA *dsa;-
310-
311 dsa = pkey->pkey.dsa;-
312 if (dsa->p == NULL || dsa->q == NULL || dsa->g == NULL)
dsa->p == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
dsa->q == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
dsa->g == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-1
313 return 1;
never executed: return 1;
0
314 return 0;
executed 1 time by 1 test: return 0;
Executed by:
  • libcrypto.so.44.0.1
1
315}-
316-
317static int-
318dsa_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)-
319{-
320 BIGNUM *a;-
321-
322 if ((a = BN_dup(from->pkey.dsa->p)) == NULL)
(a = BN_dup(fr...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-1
323 return 0;
never executed: return 0;
0
324 BN_free(to->pkey.dsa->p);-
325 to->pkey.dsa->p = a;-
326-
327 if ((a = BN_dup(from->pkey.dsa->q)) == NULL)
(a = BN_dup(fr...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-1
328 return 0;
never executed: return 0;
0
329 BN_free(to->pkey.dsa->q);-
330 to->pkey.dsa->q = a;-
331-
332 if ((a = BN_dup(from->pkey.dsa->g)) == NULL)
(a = BN_dup(fr...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-1
333 return 0;
never executed: return 0;
0
334 BN_free(to->pkey.dsa->g);-
335 to->pkey.dsa->g = a;-
336 return 1;
executed 1 time by 1 test: return 1;
Executed by:
  • libcrypto.so.44.0.1
1
337}-
338-
339static int-
340dsa_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)-
341{-
342 if (BN_cmp(a->pkey.dsa->p, b->pkey.dsa->p) ||
BN_cmp(a->pkey...->pkey.dsa->p)Description
TRUEnever evaluated
FALSEnever evaluated
0
343 BN_cmp(a->pkey.dsa->q, b->pkey.dsa->q) ||
BN_cmp(a->pkey...->pkey.dsa->q)Description
TRUEnever evaluated
FALSEnever evaluated
0
344 BN_cmp(a->pkey.dsa->g, b->pkey.dsa->g))
BN_cmp(a->pkey...->pkey.dsa->g)Description
TRUEnever evaluated
FALSEnever evaluated
0
345 return 0;
never executed: return 0;
0
346 else-
347 return 1;
never executed: return 1;
0
348}-
349-
350static int-
351dsa_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b)-
352{-
353 if (BN_cmp(b->pkey.dsa->pub_key, a->pkey.dsa->pub_key) != 0)
BN_cmp(b->pkey...>pub_key) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
354 return 0;
never executed: return 0;
0
355 else-
356 return 1;
never executed: return 1;
0
357}-
358-
359static void-
360int_dsa_free(EVP_PKEY *pkey)-
361{-
362 DSA_free(pkey->pkey.dsa);-
363}
executed 5 times by 2 tests: end of block
Executed by:
  • dsatest
  • libcrypto.so.44.0.1
5
364-
365static void-
366update_buflen(const BIGNUM *b, size_t *pbuflen)-
367{-
368 size_t i;-
369-
370 if (!b)
!bDescription
TRUEevaluated 3 times by 2 tests
Evaluated by:
  • dsatest
  • libcrypto.so.44.0.1
FALSEevaluated 9 times by 2 tests
Evaluated by:
  • dsatest
  • libcrypto.so.44.0.1
3-9
371 return;
executed 3 times by 2 tests: return;
Executed by:
  • dsatest
  • libcrypto.so.44.0.1
3
372 if (*pbuflen < (i = (size_t)BN_num_bytes(b)))
*pbuflen < (i ...bits(b)+7)/8))Description
TRUEevaluated 3 times by 2 tests
Evaluated by:
  • dsatest
  • libcrypto.so.44.0.1
FALSEevaluated 6 times by 2 tests
Evaluated by:
  • dsatest
  • libcrypto.so.44.0.1
3-6
373 *pbuflen = i;
executed 3 times by 2 tests: *pbuflen = i;
Executed by:
  • dsatest
  • libcrypto.so.44.0.1
3
374}
executed 9 times by 2 tests: end of block
Executed by:
  • dsatest
  • libcrypto.so.44.0.1
9
375-
376static int-
377do_dsa_print(BIO *bp, const DSA *x, int off, int ptype)-
378{-
379 unsigned char *m = NULL;-
380 int ret = 0;-
381 size_t buf_len = 0;-
382 const char *ktype = NULL;-
383 const BIGNUM *priv_key, *pub_key;-
384-
385 if (ptype == 2)
ptype == 2Description
TRUEevaluated 1 time by 1 test
Evaluated by:
  • dsatest
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
1
386 priv_key = x->priv_key;
executed 1 time by 1 test: priv_key = x->priv_key;
Executed by:
  • dsatest
1
387 else-
388 priv_key = NULL;
executed 1 time by 1 test: priv_key = ((void *)0) ;
Executed by:
  • libcrypto.so.44.0.1
1
389-
390 if (ptype > 0)
ptype > 0Description
TRUEevaluated 2 times by 2 tests
Evaluated by:
  • dsatest
  • libcrypto.so.44.0.1
FALSEnever evaluated
0-2
391 pub_key = x->pub_key;
executed 2 times by 2 tests: pub_key = x->pub_key;
Executed by:
  • dsatest
  • libcrypto.so.44.0.1
2
392 else-
393 pub_key = NULL;
never executed: pub_key = ((void *)0) ;
0
394-
395 if (ptype == 2)
ptype == 2Description
TRUEevaluated 1 time by 1 test
Evaluated by:
  • dsatest
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
1
396 ktype = "Private-Key";
executed 1 time by 1 test: ktype = "Private-Key";
Executed by:
  • dsatest
1
397 else if (ptype == 1)
ptype == 1Description
TRUEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
0-1
398 ktype = "Public-Key";
executed 1 time by 1 test: ktype = "Public-Key";
Executed by:
  • libcrypto.so.44.0.1
1
399 else-
400 ktype = "DSA-Parameters";
never executed: ktype = "DSA-Parameters";
0
401-
402 update_buflen(x->p, &buf_len);-
403 update_buflen(x->q, &buf_len);-
404 update_buflen(x->g, &buf_len);-
405 update_buflen(priv_key, &buf_len);-
406 update_buflen(pub_key, &buf_len);-
407-
408 m = malloc(buf_len + 10);-
409 if (m == NULL) {
m == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 2 times by 2 tests
Evaluated by:
  • dsatest
  • libcrypto.so.44.0.1
0-2
410 DSAerror(ERR_R_MALLOC_FAILURE);-
411 goto err;
never executed: goto err;
0
412 }-
413-
414 if (priv_key) {
priv_keyDescription
TRUEnever evaluated
FALSEevaluated 2 times by 2 tests
Evaluated by:
  • dsatest
  • libcrypto.so.44.0.1
0-2
415 if (!BIO_indent(bp, off, 128))
!BIO_indent(bp, off, 128)Description
TRUEnever evaluated
FALSEnever evaluated
0
416 goto err;
never executed: goto err;
0
417 if (BIO_printf(bp, "%s: (%d bit)\n", ktype,
BIO_printf(bp,...ts(x->p)) <= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
418 BN_num_bits(x->p)) <= 0)
BIO_printf(bp,...ts(x->p)) <= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
419 goto err;
never executed: goto err;
0
420 }
never executed: end of block
0
421-
422 if (!ASN1_bn_print(bp, "priv:", priv_key, m, off))
!ASN1_bn_print...v_key, m, off)Description
TRUEnever evaluated
FALSEevaluated 2 times by 2 tests
Evaluated by:
  • dsatest
  • libcrypto.so.44.0.1
0-2
423 goto err;
never executed: goto err;
0
424 if (!ASN1_bn_print(bp, "pub: ", pub_key, m, off))
!ASN1_bn_print...b_key, m, off)Description
TRUEnever evaluated
FALSEevaluated 2 times by 2 tests
Evaluated by:
  • dsatest
  • libcrypto.so.44.0.1
0-2
425 goto err;
never executed: goto err;
0
426 if (!ASN1_bn_print(bp, "P: ", x->p, m, off))
!ASN1_bn_print... x->p, m, off)Description
TRUEnever evaluated
FALSEevaluated 2 times by 2 tests
Evaluated by:
  • dsatest
  • libcrypto.so.44.0.1
0-2
427 goto err;
never executed: goto err;
0
428 if (!ASN1_bn_print(bp, "Q: ", x->q, m, off))
!ASN1_bn_print... x->q, m, off)Description
TRUEnever evaluated
FALSEevaluated 2 times by 2 tests
Evaluated by:
  • dsatest
  • libcrypto.so.44.0.1
0-2
429 goto err;
never executed: goto err;
0
430 if (!ASN1_bn_print(bp, "G: ", x->g, m, off))
!ASN1_bn_print... x->g, m, off)Description
TRUEnever evaluated
FALSEevaluated 2 times by 2 tests
Evaluated by:
  • dsatest
  • libcrypto.so.44.0.1
0-2
431 goto err;
never executed: goto err;
0
432 ret = 1;-
433err:
code before this statement executed 2 times by 2 tests: err:
Executed by:
  • dsatest
  • libcrypto.so.44.0.1
2
434 free(m);-
435 return(ret);
executed 2 times by 2 tests: return(ret);
Executed by:
  • dsatest
  • libcrypto.so.44.0.1
2
436}-
437-
438static int-
439dsa_param_decode(EVP_PKEY *pkey, const unsigned char **pder, int derlen)-
440{-
441 DSA *dsa;-
442-
443 if (!(dsa = d2i_DSAparams(NULL, pder, derlen))) {
!(dsa = d2i_DS...pder, derlen))Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-1
444 DSAerror(ERR_R_DSA_LIB);-
445 return 0;
never executed: return 0;
0
446 }-
447 EVP_PKEY_assign_DSA(pkey, dsa);-
448 return 1;
executed 1 time by 1 test: return 1;
Executed by:
  • libcrypto.so.44.0.1
1
449}-
450-
451static int-
452dsa_param_encode(const EVP_PKEY *pkey, unsigned char **pder)-
453{-
454 return i2d_DSAparams(pkey->pkey.dsa, pder);
never executed: return i2d_DSAparams(pkey->pkey.dsa, pder);
0
455}-
456-
457static int-
458dsa_param_print(BIO *bp, const EVP_PKEY *pkey, int indent, ASN1_PCTX *ctx)-
459{-
460 return do_dsa_print(bp, pkey->pkey.dsa, indent, 0);
never executed: return do_dsa_print(bp, pkey->pkey.dsa, indent, 0);
0
461}-
462-
463static int-
464dsa_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent, ASN1_PCTX *ctx)-
465{-
466 return do_dsa_print(bp, pkey->pkey.dsa, indent, 1);
executed 1 time by 1 test: return do_dsa_print(bp, pkey->pkey.dsa, indent, 1);
Executed by:
  • libcrypto.so.44.0.1
1
467}-
468-
469static int-
470dsa_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent, ASN1_PCTX *ctx)-
471{-
472 return do_dsa_print(bp, pkey->pkey.dsa, indent, 2);
executed 1 time by 1 test: return do_dsa_print(bp, pkey->pkey.dsa, indent, 2);
Executed by:
  • dsatest
1
473}-
474-
475static int-
476old_dsa_priv_decode(EVP_PKEY *pkey, const unsigned char **pder, int derlen)-
477{-
478 DSA *dsa;-
479 BN_CTX *ctx = NULL;-
480 BIGNUM *j, *p1, *newp1;-
481-
482 if (!(dsa = d2i_DSAPrivateKey(NULL, pder, derlen))) {
!(dsa = d2i_DS...pder, derlen))Description
TRUEnever evaluated
FALSEnever evaluated
0
483 DSAerror(ERR_R_DSA_LIB);-
484 return 0;
never executed: return 0;
0
485 }-
486-
487 ctx = BN_CTX_new();-
488 if (ctx == NULL)
ctx == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
489 goto err;
never executed: goto err;
0
490-
491 /*-
492 * Check that p and q are consistent with each other.-
493 */-
494-
495 j = BN_CTX_get(ctx);-
496 p1 = BN_CTX_get(ctx);-
497 newp1 = BN_CTX_get(ctx);-
498 if (j == NULL || p1 == NULL || newp1 == NULL)
j == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
p1 == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
newp1 == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
499 goto err;
never executed: goto err;
0
500 /* p1 = p - 1 */-
501 if (BN_sub(p1, dsa->p, BN_value_one()) == 0)
BN_sub(p1, dsa...ue_one()) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
502 goto err;
never executed: goto err;
0
503 /* j = (p - 1) / q */-
504 if (BN_div_ct(j, NULL, p1, dsa->q, ctx) == 0)
BN_div_ct(j, (...->q, ctx) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
505 goto err;
never executed: goto err;
0
506 /* q * j should == p - 1 */-
507 if (BN_mul(newp1, dsa->q, j, ctx) == 0)
BN_mul(newp1, ..., j, ctx) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
508 goto err;
never executed: goto err;
0
509 if (BN_cmp(newp1, p1) != 0) {
BN_cmp(newp1, p1) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
510 DSAerror(DSA_R_BAD_Q_VALUE);-
511 goto err;
never executed: goto err;
0
512 }-
513-
514 /*-
515 * Check that q is not a composite number.-
516 */-
517-
518 if (BN_is_prime_ex(dsa->q, BN_prime_checks, ctx, NULL) == 0) {
BN_is_prime_ex...id *)0) ) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
519 DSAerror(DSA_R_BAD_Q_VALUE);-
520 goto err;
never executed: goto err;
0
521 }-
522-
523 BN_CTX_free(ctx);-
524-
525 EVP_PKEY_assign_DSA(pkey, dsa);-
526 return 1;
never executed: return 1;
0
527-
528err:-
529 BN_CTX_free(ctx);-
530 DSA_free(dsa);-
531 return 0;
never executed: return 0;
0
532}-
533-
534static int-
535old_dsa_priv_encode(const EVP_PKEY *pkey, unsigned char **pder)-
536{-
537 return i2d_DSAPrivateKey(pkey->pkey.dsa, pder);
never executed: return i2d_DSAPrivateKey(pkey->pkey.dsa, pder);
0
538}-
539-
540static int-
541dsa_sig_print(BIO *bp, const X509_ALGOR *sigalg, const ASN1_STRING *sig,-
542 int indent, ASN1_PCTX *pctx)-
543{-
544 DSA_SIG *dsa_sig;-
545 const unsigned char *p;-
546-
547 if (!sig) {
!sigDescription
TRUEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
1
548 if (BIO_puts(bp, "\n") <= 0)
BIO_puts(bp, "\n") <= 0Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-1
549 return 0;
never executed: return 0;
0
550 else-
551 return 1;
executed 1 time by 1 test: return 1;
Executed by:
  • libcrypto.so.44.0.1
1
552 }-
553 p = sig->data;-
554 dsa_sig = d2i_DSA_SIG(NULL, &p, sig->length);-
555 if (dsa_sig) {
dsa_sigDescription
TRUEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
0-1
556 int rv = 0;-
557 size_t buf_len = 0;-
558 unsigned char *m = NULL;-
559-
560 update_buflen(dsa_sig->r, &buf_len);-
561 update_buflen(dsa_sig->s, &buf_len);-
562 m = malloc(buf_len + 10);-
563 if (m == NULL) {
m == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-1
564 DSAerror(ERR_R_MALLOC_FAILURE);-
565 goto err;
never executed: goto err;
0
566 }-
567-
568 if (BIO_write(bp, "\n", 1) != 1)
BIO_write(bp, "\n", 1) != 1Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-1
569 goto err;
never executed: goto err;
0
570-
571 if (!ASN1_bn_print(bp, "r: ", dsa_sig->r, m, indent))
!ASN1_bn_print...>r, m, indent)Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-1
572 goto err;
never executed: goto err;
0
573 if (!ASN1_bn_print(bp, "s: ", dsa_sig->s, m, indent))
!ASN1_bn_print...>s, m, indent)Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-1
574 goto err;
never executed: goto err;
0
575 rv = 1;-
576err:
code before this statement executed 1 time by 1 test: err:
Executed by:
  • libcrypto.so.44.0.1
1
577 free(m);-
578 DSA_SIG_free(dsa_sig);-
579 return rv;
executed 1 time by 1 test: return rv;
Executed by:
  • libcrypto.so.44.0.1
1
580 }-
581 return X509_signature_dump(bp, sig, indent);
never executed: return X509_signature_dump(bp, sig, indent);
0
582}-
583-
584static int-
585dsa_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2)-
586{-
587 switch (op) {-
588 case ASN1_PKEY_CTRL_PKCS7_SIGN:
never executed: case 0x1:
0
589 if (arg1 == 0) {
arg1 == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
590 int snid, hnid;-
591 X509_ALGOR *alg1, *alg2;-
592-
593 PKCS7_SIGNER_INFO_get0_algs(arg2, NULL, &alg1, &alg2);-
594 if (alg1 == NULL || alg1->algorithm == NULL)
alg1 == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
alg1->algorithm == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
595 return -1;
never executed: return -1;
0
596 hnid = OBJ_obj2nid(alg1->algorithm);-
597 if (hnid == NID_undef)
hnid == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
598 return -1;
never executed: return -1;
0
599 if (!OBJ_find_sigid_by_algs(&snid, hnid,
!OBJ_find_sigi...PKEY_id(pkey))Description
TRUEnever evaluated
FALSEnever evaluated
0
600 EVP_PKEY_id(pkey)))
!OBJ_find_sigi...PKEY_id(pkey))Description
TRUEnever evaluated
FALSEnever evaluated
0
601 return -1;
never executed: return -1;
0
602 X509_ALGOR_set0(alg2, OBJ_nid2obj(snid), V_ASN1_UNDEF,-
603 0);-
604 }
never executed: end of block
0
605 return 1;
never executed: return 1;
0
606-
607 case ASN1_PKEY_CTRL_DEFAULT_MD_NID:
never executed: case 0x3:
0
608 *(int *)arg2 = NID_sha1;-
609 return 2;
never executed: return 2;
0
610-
611 default:
never executed: default:
0
612 return -2;
never executed: return -2;
0
613 }-
614}-
615-
616/* NB these are sorted in pkey_id order, lowest first */-
617-
618const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[] = {-
619 {-
620 .pkey_id = EVP_PKEY_DSA2,-
621 .pkey_base_id = EVP_PKEY_DSA,-
622 .pkey_flags = ASN1_PKEY_ALIAS-
623 },-
624-
625 {-
626 .pkey_id = EVP_PKEY_DSA1,-
627 .pkey_base_id = EVP_PKEY_DSA,-
628 .pkey_flags = ASN1_PKEY_ALIAS-
629 },-
630-
631 {-
632 .pkey_id = EVP_PKEY_DSA4,-
633 .pkey_base_id = EVP_PKEY_DSA,-
634 .pkey_flags = ASN1_PKEY_ALIAS-
635 },-
636-
637 {-
638 .pkey_id = EVP_PKEY_DSA3,-
639 .pkey_base_id = EVP_PKEY_DSA,-
640 .pkey_flags = ASN1_PKEY_ALIAS-
641 },-
642-
643 {-
644 .pkey_id = EVP_PKEY_DSA,-
645 .pkey_base_id = EVP_PKEY_DSA,-
646-
647 .pem_str = "DSA",-
648 .info = "OpenSSL DSA method",-
649-
650 .pub_decode = dsa_pub_decode,-
651 .pub_encode = dsa_pub_encode,-
652 .pub_cmp = dsa_pub_cmp,-
653 .pub_print = dsa_pub_print,-
654-
655 .priv_decode = dsa_priv_decode,-
656 .priv_encode = dsa_priv_encode,-
657 .priv_print = dsa_priv_print,-
658-
659 .pkey_size = int_dsa_size,-
660 .pkey_bits = dsa_bits,-
661-
662 .param_decode = dsa_param_decode,-
663 .param_encode = dsa_param_encode,-
664 .param_missing = dsa_missing_parameters,-
665 .param_copy = dsa_copy_parameters,-
666 .param_cmp = dsa_cmp_parameters,-
667 .param_print = dsa_param_print,-
668 .sig_print = dsa_sig_print,-
669-
670 .pkey_free = int_dsa_free,-
671 .pkey_ctrl = dsa_pkey_ctrl,-
672 .old_priv_decode = old_dsa_priv_decode,-
673 .old_priv_encode = old_dsa_priv_encode-
674 }-
675};-
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