Line data Source code
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 :
75 0 : 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 0 : i = i2d(data, NULL);
82 0 : if ((str = (unsigned char *)OPENSSL_malloc(i)) == NULL) {
83 0 : ASN1err(ASN1_F_ASN1_DIGEST, ERR_R_MALLOC_FAILURE);
84 0 : return (0);
85 : }
86 0 : p = str;
87 0 : i2d(data, &p);
88 :
89 0 : if (!EVP_Digest(str, i, md, len, type, NULL))
90 : return 0;
91 0 : OPENSSL_free(str);
92 0 : return (1);
93 : }
94 :
95 : #endif
96 :
97 1037 : int ASN1_item_digest(const ASN1_ITEM *it, const EVP_MD *type, void *asn,
98 : unsigned char *md, unsigned int *len)
99 : {
100 : int i;
101 1037 : unsigned char *str = NULL;
102 :
103 1037 : i = ASN1_item_i2d(asn, &str, it);
104 1037 : if (!str)
105 : return (0);
106 :
107 1037 : if (!EVP_Digest(str, i, md, len, type, NULL))
108 : return 0;
109 1037 : OPENSSL_free(str);
110 1037 : return (1);
111 : }
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