1 /* crypto/x509/x509_cmp.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
61 #include <openssl/asn1.h>
62 #include <openssl/objects.h>
63 #include <openssl/x509.h>
64 #include <openssl/x509v3.h>
66 int X509_issuer_and_serial_cmp(const X509 *a, const X509 *b)
73 i=M_ASN1_INTEGER_cmp(ai->serialNumber,bi->serialNumber);
75 return(X509_NAME_cmp(ai->issuer,bi->issuer));
79 unsigned long X509_issuer_and_serial_hash(X509 *a)
86 X509_NAME_oneline(a->cert_info->issuer,str,256);
89 MD5_Update(&ctx,(unsigned char *)str,ret);
90 MD5_Update(&ctx,(unsigned char *)a->cert_info->serialNumber->data,
91 (unsigned long)a->cert_info->serialNumber->length);
92 MD5_Final(&(md[0]),&ctx);
93 ret=( ((unsigned long)md[0] )|((unsigned long)md[1]<<8L)|
94 ((unsigned long)md[2]<<16L)|((unsigned long)md[3]<<24L)
100 int X509_issuer_name_cmp(const X509 *a, const X509 *b)
102 return(X509_NAME_cmp(a->cert_info->issuer,b->cert_info->issuer));
105 int X509_subject_name_cmp(const X509 *a, const X509 *b)
107 return(X509_NAME_cmp(a->cert_info->subject,b->cert_info->subject));
110 int X509_CRL_cmp(const X509_CRL *a, const X509_CRL *b)
112 return(X509_NAME_cmp(a->crl->issuer,b->crl->issuer));
115 X509_NAME *X509_get_issuer_name(X509 *a)
117 return(a->cert_info->issuer);
120 unsigned long X509_issuer_name_hash(X509 *x)
122 return(X509_NAME_hash(x->cert_info->issuer));
125 X509_NAME *X509_get_subject_name(X509 *a)
127 return(a->cert_info->subject);
130 ASN1_INTEGER *X509_get_serialNumber(X509 *a)
132 return(a->cert_info->serialNumber);
135 unsigned long X509_subject_name_hash(X509 *x)
137 return(X509_NAME_hash(x->cert_info->subject));
141 /* Compare two certificates: they must be identical for
142 * this to work. NB: Although "cmp" operations are generally
143 * prototyped to take "const" arguments (eg. for use in
144 * STACKs), the way X509 handling is - these operations may
145 * involve ensuring the hashes are up-to-date and ensuring
146 * certain cert information is cached. So this is the point
147 * where the "depth-first" constification tree has to halt
150 int X509_cmp(const X509 *a, const X509 *b)
152 /* ensure hash is valid */
153 X509_check_purpose((X509 *)a, -1, 0);
154 X509_check_purpose((X509 *)b, -1, 0);
156 return memcmp(a->sha1_hash, b->sha1_hash, SHA_DIGEST_LENGTH);
160 int X509_NAME_cmp(const X509_NAME *a, const X509_NAME *b)
163 X509_NAME_ENTRY *na,*nb;
165 if (sk_X509_NAME_ENTRY_num(a->entries)
166 != sk_X509_NAME_ENTRY_num(b->entries))
167 return sk_X509_NAME_ENTRY_num(a->entries)
168 -sk_X509_NAME_ENTRY_num(b->entries);
169 for (i=sk_X509_NAME_ENTRY_num(a->entries)-1; i>=0; i--)
171 na=sk_X509_NAME_ENTRY_value(a->entries,i);
172 nb=sk_X509_NAME_ENTRY_value(b->entries,i);
173 j=na->value->length-nb->value->length;
175 j=memcmp(na->value->data,nb->value->data,
182 /* We will check the object types after checking the values
183 * since the values will more often be different than the object
185 for (i=sk_X509_NAME_ENTRY_num(a->entries)-1; i>=0; i--)
187 na=sk_X509_NAME_ENTRY_value(a->entries,i);
188 nb=sk_X509_NAME_ENTRY_value(b->entries,i);
189 j=OBJ_cmp(na->object,nb->object);
196 /* I now DER encode the name and hash it. Since I cache the DER encoding,
197 * this is reasonably efficient. */
198 unsigned long X509_NAME_hash(X509_NAME *x)
201 unsigned char md[16];
202 unsigned char str[256],*p,*pp;
205 i=i2d_X509_NAME(x,NULL);
212 i2d_X509_NAME(x,&pp);
213 MD5((unsigned char *)p,i,&(md[0]));
214 if (p != str) Free(p);
216 ret=( ((unsigned long)md[0] )|((unsigned long)md[1]<<8L)|
217 ((unsigned long)md[2]<<16L)|((unsigned long)md[3]<<24L)
223 /* Search a stack of X509 for a match */
224 X509 *X509_find_by_issuer_and_serial(STACK_OF(X509) *sk, X509_NAME *name,
225 ASN1_INTEGER *serial)
234 cinf.serialNumber=serial;
237 for (i=0; i<sk_X509_num(sk); i++)
239 x509=sk_X509_value(sk,i);
240 if (X509_issuer_and_serial_cmp(x509,&x) == 0)
246 X509 *X509_find_by_subject(STACK_OF(X509) *sk, X509_NAME *name)
251 for (i=0; i<sk_X509_num(sk); i++)
253 x509=sk_X509_value(sk,i);
254 if (X509_NAME_cmp(X509_get_subject_name(x509),name) == 0)
260 EVP_PKEY *X509_get_pubkey(X509 *x)
262 if ((x == NULL) || (x->cert_info == NULL))
264 return(X509_PUBKEY_get(x->cert_info->key));
267 int X509_check_private_key(X509 *x, EVP_PKEY *k)
272 xk=X509_get_pubkey(x);
273 if (xk->type != k->type)
275 X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_KEY_TYPE_MISMATCH);
282 if (BN_cmp(xk->pkey.rsa->n,k->pkey.rsa->n) != 0
283 || BN_cmp(xk->pkey.rsa->e,k->pkey.rsa->e) != 0)
285 X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_KEY_VALUES_MISMATCH);
292 if (BN_cmp(xk->pkey.dsa->pub_key,k->pkey.dsa->pub_key) != 0)
294 X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_KEY_VALUES_MISMATCH);
302 X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_CANT_CHECK_DH_KEY);
306 X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_UNKNOWN_KEY_TYPE);