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diff --git a/src/lib/libcrypto/x509/x509_cmp.c b/src/lib/libcrypto/x509/x509_cmp.c
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1/* crypto/x509/x509_cmp.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60#include <ctype.h>
61#include "cryptlib.h"
62#include <openssl/asn1.h>
63#include <openssl/objects.h>
64#include <openssl/x509.h>
65#include <openssl/x509v3.h>
66
67int X509_issuer_and_serial_cmp(const X509 *a, const X509 *b)
68 {
69 int i;
70 X509_CINF *ai,*bi;
71
72 ai=a->cert_info;
73 bi=b->cert_info;
74 i=M_ASN1_INTEGER_cmp(ai->serialNumber,bi->serialNumber);
75 if (i) return(i);
76 return(X509_NAME_cmp(ai->issuer,bi->issuer));
77 }
78
79#ifndef OPENSSL_NO_MD5
80unsigned long X509_issuer_and_serial_hash(X509 *a)
81 {
82 unsigned long ret=0;
83 EVP_MD_CTX ctx;
84 unsigned char md[16];
85 char *f;
86
87 EVP_MD_CTX_init(&ctx);
88 f=X509_NAME_oneline(a->cert_info->issuer,NULL,0);
89 ret=strlen(f);
90 if (!EVP_DigestInit_ex(&ctx, EVP_md5(), NULL))
91 goto err;
92 if (!EVP_DigestUpdate(&ctx,(unsigned char *)f,ret))
93 goto err;
94 OPENSSL_free(f);
95 if(!EVP_DigestUpdate(&ctx,(unsigned char *)a->cert_info->serialNumber->data,
96 (unsigned long)a->cert_info->serialNumber->length))
97 goto err;
98 if (!EVP_DigestFinal_ex(&ctx,&(md[0]),NULL))
99 goto err;
100 ret=( ((unsigned long)md[0] )|((unsigned long)md[1]<<8L)|
101 ((unsigned long)md[2]<<16L)|((unsigned long)md[3]<<24L)
102 )&0xffffffffL;
103 err:
104 EVP_MD_CTX_cleanup(&ctx);
105 return(ret);
106 }
107#endif
108
109int X509_issuer_name_cmp(const X509 *a, const X509 *b)
110 {
111 return(X509_NAME_cmp(a->cert_info->issuer,b->cert_info->issuer));
112 }
113
114int X509_subject_name_cmp(const X509 *a, const X509 *b)
115 {
116 return(X509_NAME_cmp(a->cert_info->subject,b->cert_info->subject));
117 }
118
119int X509_CRL_cmp(const X509_CRL *a, const X509_CRL *b)
120 {
121 return(X509_NAME_cmp(a->crl->issuer,b->crl->issuer));
122 }
123
124#ifndef OPENSSL_NO_SHA
125int X509_CRL_match(const X509_CRL *a, const X509_CRL *b)
126 {
127 return memcmp(a->sha1_hash, b->sha1_hash, 20);
128 }
129#endif
130
131X509_NAME *X509_get_issuer_name(X509 *a)
132 {
133 return(a->cert_info->issuer);
134 }
135
136unsigned long X509_issuer_name_hash(X509 *x)
137 {
138 return(X509_NAME_hash(x->cert_info->issuer));
139 }
140
141#ifndef OPENSSL_NO_MD5
142unsigned long X509_issuer_name_hash_old(X509 *x)
143 {
144 return(X509_NAME_hash_old(x->cert_info->issuer));
145 }
146#endif
147
148X509_NAME *X509_get_subject_name(X509 *a)
149 {
150 return(a->cert_info->subject);
151 }
152
153ASN1_INTEGER *X509_get_serialNumber(X509 *a)
154 {
155 return(a->cert_info->serialNumber);
156 }
157
158unsigned long X509_subject_name_hash(X509 *x)
159 {
160 return(X509_NAME_hash(x->cert_info->subject));
161 }
162
163#ifndef OPENSSL_NO_MD5
164unsigned long X509_subject_name_hash_old(X509 *x)
165 {
166 return(X509_NAME_hash_old(x->cert_info->subject));
167 }
168#endif
169
170#ifndef OPENSSL_NO_SHA
171/* Compare two certificates: they must be identical for
172 * this to work. NB: Although "cmp" operations are generally
173 * prototyped to take "const" arguments (eg. for use in
174 * STACKs), the way X509 handling is - these operations may
175 * involve ensuring the hashes are up-to-date and ensuring
176 * certain cert information is cached. So this is the point
177 * where the "depth-first" constification tree has to halt
178 * with an evil cast.
179 */
180int X509_cmp(const X509 *a, const X509 *b)
181{
182 /* ensure hash is valid */
183 X509_check_purpose((X509 *)a, -1, 0);
184 X509_check_purpose((X509 *)b, -1, 0);
185
186 return memcmp(a->sha1_hash, b->sha1_hash, SHA_DIGEST_LENGTH);
187}
188#endif
189
190
191int X509_NAME_cmp(const X509_NAME *a, const X509_NAME *b)
192 {
193 int ret;
194
195 /* Ensure canonical encoding is present and up to date */
196
197 if (!a->canon_enc || a->modified)
198 {
199 ret = i2d_X509_NAME((X509_NAME *)a, NULL);
200 if (ret < 0)
201 return -2;
202 }
203
204 if (!b->canon_enc || b->modified)
205 {
206 ret = i2d_X509_NAME((X509_NAME *)b, NULL);
207 if (ret < 0)
208 return -2;
209 }
210
211 ret = a->canon_enclen - b->canon_enclen;
212
213 if (ret)
214 return ret;
215
216 return memcmp(a->canon_enc, b->canon_enc, a->canon_enclen);
217
218 }
219
220unsigned long X509_NAME_hash(X509_NAME *x)
221 {
222 unsigned long ret=0;
223 unsigned char md[SHA_DIGEST_LENGTH];
224
225 /* Make sure X509_NAME structure contains valid cached encoding */
226 i2d_X509_NAME(x,NULL);
227 if (!EVP_Digest(x->canon_enc, x->canon_enclen, md, NULL, EVP_sha1(),
228 NULL))
229 return 0;
230
231 ret=( ((unsigned long)md[0] )|((unsigned long)md[1]<<8L)|
232 ((unsigned long)md[2]<<16L)|((unsigned long)md[3]<<24L)
233 )&0xffffffffL;
234 return(ret);
235 }
236
237
238#ifndef OPENSSL_NO_MD5
239/* I now DER encode the name and hash it. Since I cache the DER encoding,
240 * this is reasonably efficient. */
241
242unsigned long X509_NAME_hash_old(X509_NAME *x)
243 {
244 EVP_MD_CTX md_ctx;
245 unsigned long ret=0;
246 unsigned char md[16];
247
248 /* Make sure X509_NAME structure contains valid cached encoding */
249 i2d_X509_NAME(x,NULL);
250 EVP_MD_CTX_init(&md_ctx);
251 EVP_MD_CTX_set_flags(&md_ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
252 EVP_DigestInit_ex(&md_ctx, EVP_md5(), NULL);
253 EVP_DigestUpdate(&md_ctx, x->bytes->data, x->bytes->length);
254 EVP_DigestFinal_ex(&md_ctx,md,NULL);
255 EVP_MD_CTX_cleanup(&md_ctx);
256
257 ret=( ((unsigned long)md[0] )|((unsigned long)md[1]<<8L)|
258 ((unsigned long)md[2]<<16L)|((unsigned long)md[3]<<24L)
259 )&0xffffffffL;
260 return(ret);
261 }
262#endif
263
264/* Search a stack of X509 for a match */
265X509 *X509_find_by_issuer_and_serial(STACK_OF(X509) *sk, X509_NAME *name,
266 ASN1_INTEGER *serial)
267 {
268 int i;
269 X509_CINF cinf;
270 X509 x,*x509=NULL;
271
272 if(!sk) return NULL;
273
274 x.cert_info= &cinf;
275 cinf.serialNumber=serial;
276 cinf.issuer=name;
277
278 for (i=0; i<sk_X509_num(sk); i++)
279 {
280 x509=sk_X509_value(sk,i);
281 if (X509_issuer_and_serial_cmp(x509,&x) == 0)
282 return(x509);
283 }
284 return(NULL);
285 }
286
287X509 *X509_find_by_subject(STACK_OF(X509) *sk, X509_NAME *name)
288 {
289 X509 *x509;
290 int i;
291
292 for (i=0; i<sk_X509_num(sk); i++)
293 {
294 x509=sk_X509_value(sk,i);
295 if (X509_NAME_cmp(X509_get_subject_name(x509),name) == 0)
296 return(x509);
297 }
298 return(NULL);
299 }
300
301EVP_PKEY *X509_get_pubkey(X509 *x)
302 {
303 if ((x == NULL) || (x->cert_info == NULL))
304 return(NULL);
305 return(X509_PUBKEY_get(x->cert_info->key));
306 }
307
308ASN1_BIT_STRING *X509_get0_pubkey_bitstr(const X509 *x)
309 {
310 if(!x) return NULL;
311 return x->cert_info->key->public_key;
312 }
313
314int X509_check_private_key(X509 *x, EVP_PKEY *k)
315 {
316 EVP_PKEY *xk;
317 int ret;
318
319 xk=X509_get_pubkey(x);
320
321 if (xk)
322 ret = EVP_PKEY_cmp(xk, k);
323 else
324 ret = -2;
325
326 switch (ret)
327 {
328 case 1:
329 break;
330 case 0:
331 X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_KEY_VALUES_MISMATCH);
332 break;
333 case -1:
334 X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_KEY_TYPE_MISMATCH);
335 break;
336 case -2:
337 X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_UNKNOWN_KEY_TYPE);
338 }
339 if (xk)
340 EVP_PKEY_free(xk);
341 if (ret > 0)
342 return 1;
343 return 0;
344 }
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