1/*
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#include <stdio.h>
11#include <time.h>
12#include <sys/types.h>
13
14#include "internal/cryptlib.h"
15
16#include <openssl/err.h>
17#include <openssl/evp.h>
18#include <openssl/buffer.h>
19#include <openssl/x509.h>
20
21#ifndef NO_ASN1_OLD
22
23int ASN1_digest(i2d_of_void *i2d, const EVP_MD *type, char *data,
24 unsigned char *md, unsigned int *len)
25{
26 int inl;
27 unsigned char *str, *p;
28
29 inl = i2d(data, NULL);
30 if (inl <= 0) {
31 ASN1err(ASN1_F_ASN1_DIGEST, ERR_R_INTERNAL_ERROR);
32 return 0;
33 }
34 if ((str = OPENSSL_malloc(inl)) == NULL) {
35 ASN1err(ASN1_F_ASN1_DIGEST, ERR_R_MALLOC_FAILURE);
36 return 0;
37 }
38 p = str;
39 i2d(data, &p);
40
41 if (!EVP_Digest(str, inl, md, len, type, NULL)) {
42 OPENSSL_free(str);
43 return 0;
44 }
45 OPENSSL_free(str);
46 return 1;
47}
48
49#endif
50
51int ASN1_item_digest(const ASN1_ITEM *it, const EVP_MD *type, void *asn,
52 unsigned char *md, unsigned int *len)
53{
54 int i;
55 unsigned char *str = NULL;
56
57 i = ASN1_item_i2d(asn, &str, it);
58 if (!str)
59 return 0;
60
61 if (!EVP_Digest(str, i, md, len, type, NULL)) {
62 OPENSSL_free(str);
63 return 0;
64 }
65 OPENSSL_free(str);
66 return 1;
67}
68