1 /* 2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the OpenSSL license (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 i; 27 unsigned char *str, *p; 28 29 i = i2d(data, NULL); 30 if ((str = OPENSSL_malloc(i)) == NULL) { 31 ASN1err(ASN1_F_ASN1_DIGEST, ERR_R_MALLOC_FAILURE); 32 return 0; 33 } 34 p = str; 35 i2d(data, &p); 36 37 if (!EVP_Digest(str, i, md, len, type, NULL)) { 38 OPENSSL_free(str); 39 return 0; 40 } 41 OPENSSL_free(str); 42 return 1; 43 } 44 45 #endif 46 47 int ASN1_item_digest(const ASN1_ITEM *it, const EVP_MD *type, void *asn, 48 unsigned char *md, unsigned int *len) 49 { 50 int i; 51 unsigned char *str = NULL; 52 53 i = ASN1_item_i2d(asn, &str, it); 54 if (!str) 55 return 0; 56 57 if (!EVP_Digest(str, i, md, len, type, NULL)) { 58 OPENSSL_free(str); 59 return 0; 60 } 61 OPENSSL_free(str); 62 return 1; 63 } 64