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 | |
23 | int 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 | |
51 | int 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 | |