1 /* crypto/asn1/a_digest.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 <time.h>
61
62 #include "cryptlib.h"
63
64 #ifndef NO_SYS_TYPES_H
65 # include <sys/types.h>
66 #endif
67
68 #include <openssl/err.h>
69 #include <openssl/evp.h>
70 #include <openssl/buffer.h>
71 #include <openssl/x509.h>
72
73 #ifndef NO_ASN1_OLD
74
ASN1_digest(i2d_of_void * i2d,const EVP_MD * type,char * data,unsigned char * md,unsigned int * len)75 int ASN1_digest(i2d_of_void *i2d, const EVP_MD *type, char *data,
76 unsigned char *md, unsigned int *len)
77 {
78 int i;
79 unsigned char *str,*p;
80
81 i=i2d(data,NULL);
82 if ((str=(unsigned char *)OPENSSL_malloc(i)) == NULL)
83 {
84 ASN1err(ASN1_F_ASN1_DIGEST,ERR_R_MALLOC_FAILURE);
85 return(0);
86 }
87 p=str;
88 i2d(data,&p);
89
90 if (!EVP_Digest(str, i, md, len, type, NULL))
91 return 0;
92 OPENSSL_free(str);
93 return(1);
94 }
95
96 #endif
97
98
ASN1_item_digest(const ASN1_ITEM * it,const EVP_MD * type,void * asn,unsigned char * md,unsigned int * len)99 int ASN1_item_digest(const ASN1_ITEM *it, const EVP_MD *type, void *asn,
100 unsigned char *md, unsigned int *len)
101 {
102 int i;
103 unsigned char *str = NULL;
104
105 i=ASN1_item_i2d(asn,&str, it);
106 if (!str) return(0);
107
108 if (!EVP_Digest(str, i, md, len, type, NULL))
109 return 0;
110 OPENSSL_free(str);
111 return(1);
112 }
113
114