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 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