1*0Sstevel@tonic-gate /* p12_mutl.c */ 2*0Sstevel@tonic-gate /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL 3*0Sstevel@tonic-gate * project 1999. 4*0Sstevel@tonic-gate */ 5*0Sstevel@tonic-gate /* ==================================================================== 6*0Sstevel@tonic-gate * Copyright (c) 1999 The OpenSSL Project. All rights reserved. 7*0Sstevel@tonic-gate * 8*0Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without 9*0Sstevel@tonic-gate * modification, are permitted provided that the following conditions 10*0Sstevel@tonic-gate * are met: 11*0Sstevel@tonic-gate * 12*0Sstevel@tonic-gate * 1. Redistributions of source code must retain the above copyright 13*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer. 14*0Sstevel@tonic-gate * 15*0Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright 16*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in 17*0Sstevel@tonic-gate * the documentation and/or other materials provided with the 18*0Sstevel@tonic-gate * distribution. 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this 21*0Sstevel@tonic-gate * software must display the following acknowledgment: 22*0Sstevel@tonic-gate * "This product includes software developed by the OpenSSL Project 23*0Sstevel@tonic-gate * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 24*0Sstevel@tonic-gate * 25*0Sstevel@tonic-gate * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26*0Sstevel@tonic-gate * endorse or promote products derived from this software without 27*0Sstevel@tonic-gate * prior written permission. For written permission, please contact 28*0Sstevel@tonic-gate * licensing@OpenSSL.org. 29*0Sstevel@tonic-gate * 30*0Sstevel@tonic-gate * 5. Products derived from this software may not be called "OpenSSL" 31*0Sstevel@tonic-gate * nor may "OpenSSL" appear in their names without prior written 32*0Sstevel@tonic-gate * permission of the OpenSSL Project. 33*0Sstevel@tonic-gate * 34*0Sstevel@tonic-gate * 6. Redistributions of any form whatsoever must retain the following 35*0Sstevel@tonic-gate * acknowledgment: 36*0Sstevel@tonic-gate * "This product includes software developed by the OpenSSL Project 37*0Sstevel@tonic-gate * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 38*0Sstevel@tonic-gate * 39*0Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40*0Sstevel@tonic-gate * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41*0Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42*0Sstevel@tonic-gate * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43*0Sstevel@tonic-gate * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44*0Sstevel@tonic-gate * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45*0Sstevel@tonic-gate * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46*0Sstevel@tonic-gate * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47*0Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48*0Sstevel@tonic-gate * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49*0Sstevel@tonic-gate * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50*0Sstevel@tonic-gate * OF THE POSSIBILITY OF SUCH DAMAGE. 51*0Sstevel@tonic-gate * ==================================================================== 52*0Sstevel@tonic-gate * 53*0Sstevel@tonic-gate * This product includes cryptographic software written by Eric Young 54*0Sstevel@tonic-gate * (eay@cryptsoft.com). This product includes software written by Tim 55*0Sstevel@tonic-gate * Hudson (tjh@cryptsoft.com). 56*0Sstevel@tonic-gate * 57*0Sstevel@tonic-gate */ 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate #ifndef OPENSSL_NO_HMAC 60*0Sstevel@tonic-gate #include <stdio.h> 61*0Sstevel@tonic-gate #include "cryptlib.h" 62*0Sstevel@tonic-gate #include <openssl/hmac.h> 63*0Sstevel@tonic-gate #include <openssl/rand.h> 64*0Sstevel@tonic-gate #include <openssl/pkcs12.h> 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate /* Generate a MAC */ 67*0Sstevel@tonic-gate int PKCS12_gen_mac (PKCS12 *p12, const char *pass, int passlen, 68*0Sstevel@tonic-gate unsigned char *mac, unsigned int *maclen) 69*0Sstevel@tonic-gate { 70*0Sstevel@tonic-gate const EVP_MD *md_type; 71*0Sstevel@tonic-gate HMAC_CTX hmac; 72*0Sstevel@tonic-gate unsigned char key[PKCS12_MAC_KEY_LENGTH], *salt; 73*0Sstevel@tonic-gate int saltlen, iter; 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate salt = p12->mac->salt->data; 76*0Sstevel@tonic-gate saltlen = p12->mac->salt->length; 77*0Sstevel@tonic-gate if (!p12->mac->iter) iter = 1; 78*0Sstevel@tonic-gate else iter = ASN1_INTEGER_get (p12->mac->iter); 79*0Sstevel@tonic-gate if(!(md_type = 80*0Sstevel@tonic-gate EVP_get_digestbyobj (p12->mac->dinfo->algor->algorithm))) { 81*0Sstevel@tonic-gate PKCS12err(PKCS12_F_PKCS12_GEN_MAC,PKCS12_R_UNKNOWN_DIGEST_ALGORITHM); 82*0Sstevel@tonic-gate return 0; 83*0Sstevel@tonic-gate } 84*0Sstevel@tonic-gate if(!PKCS12_key_gen (pass, passlen, salt, saltlen, PKCS12_MAC_ID, iter, 85*0Sstevel@tonic-gate PKCS12_MAC_KEY_LENGTH, key, md_type)) { 86*0Sstevel@tonic-gate PKCS12err(PKCS12_F_PKCS12_GEN_MAC,PKCS12_R_KEY_GEN_ERROR); 87*0Sstevel@tonic-gate return 0; 88*0Sstevel@tonic-gate } 89*0Sstevel@tonic-gate HMAC_CTX_init(&hmac); 90*0Sstevel@tonic-gate HMAC_Init_ex(&hmac, key, PKCS12_MAC_KEY_LENGTH, md_type, NULL); 91*0Sstevel@tonic-gate HMAC_Update(&hmac, p12->authsafes->d.data->data, 92*0Sstevel@tonic-gate p12->authsafes->d.data->length); 93*0Sstevel@tonic-gate HMAC_Final(&hmac, mac, maclen); 94*0Sstevel@tonic-gate HMAC_CTX_cleanup(&hmac); 95*0Sstevel@tonic-gate return 1; 96*0Sstevel@tonic-gate } 97*0Sstevel@tonic-gate 98*0Sstevel@tonic-gate /* Verify the mac */ 99*0Sstevel@tonic-gate int PKCS12_verify_mac (PKCS12 *p12, const char *pass, int passlen) 100*0Sstevel@tonic-gate { 101*0Sstevel@tonic-gate unsigned char mac[EVP_MAX_MD_SIZE]; 102*0Sstevel@tonic-gate unsigned int maclen; 103*0Sstevel@tonic-gate if(p12->mac == NULL) { 104*0Sstevel@tonic-gate PKCS12err(PKCS12_F_VERIFY_MAC,PKCS12_R_MAC_ABSENT); 105*0Sstevel@tonic-gate return 0; 106*0Sstevel@tonic-gate } 107*0Sstevel@tonic-gate if (!PKCS12_gen_mac (p12, pass, passlen, mac, &maclen)) { 108*0Sstevel@tonic-gate PKCS12err(PKCS12_F_VERIFY_MAC,PKCS12_R_MAC_GENERATION_ERROR); 109*0Sstevel@tonic-gate return 0; 110*0Sstevel@tonic-gate } 111*0Sstevel@tonic-gate if ((maclen != (unsigned int)p12->mac->dinfo->digest->length) 112*0Sstevel@tonic-gate || memcmp (mac, p12->mac->dinfo->digest->data, maclen)) return 0; 113*0Sstevel@tonic-gate return 1; 114*0Sstevel@tonic-gate } 115*0Sstevel@tonic-gate 116*0Sstevel@tonic-gate /* Set a mac */ 117*0Sstevel@tonic-gate 118*0Sstevel@tonic-gate int PKCS12_set_mac (PKCS12 *p12, const char *pass, int passlen, 119*0Sstevel@tonic-gate unsigned char *salt, int saltlen, int iter, const EVP_MD *md_type) 120*0Sstevel@tonic-gate { 121*0Sstevel@tonic-gate unsigned char mac[EVP_MAX_MD_SIZE]; 122*0Sstevel@tonic-gate unsigned int maclen; 123*0Sstevel@tonic-gate 124*0Sstevel@tonic-gate if (!md_type) md_type = EVP_sha1(); 125*0Sstevel@tonic-gate if (PKCS12_setup_mac (p12, iter, salt, saltlen, md_type) == 126*0Sstevel@tonic-gate PKCS12_ERROR) { 127*0Sstevel@tonic-gate PKCS12err(PKCS12_F_PKCS12_SET_MAC,PKCS12_R_MAC_SETUP_ERROR); 128*0Sstevel@tonic-gate return 0; 129*0Sstevel@tonic-gate } 130*0Sstevel@tonic-gate if (!PKCS12_gen_mac (p12, pass, passlen, mac, &maclen)) { 131*0Sstevel@tonic-gate PKCS12err(PKCS12_F_PKCS12_SET_MAC,PKCS12_R_MAC_GENERATION_ERROR); 132*0Sstevel@tonic-gate return 0; 133*0Sstevel@tonic-gate } 134*0Sstevel@tonic-gate if (!(M_ASN1_OCTET_STRING_set (p12->mac->dinfo->digest, mac, maclen))) { 135*0Sstevel@tonic-gate PKCS12err(PKCS12_F_PKCS12_SET_MAC,PKCS12_R_MAC_STRING_SET_ERROR); 136*0Sstevel@tonic-gate return 0; 137*0Sstevel@tonic-gate } 138*0Sstevel@tonic-gate return 1; 139*0Sstevel@tonic-gate } 140*0Sstevel@tonic-gate 141*0Sstevel@tonic-gate /* Set up a mac structure */ 142*0Sstevel@tonic-gate int PKCS12_setup_mac (PKCS12 *p12, int iter, unsigned char *salt, int saltlen, 143*0Sstevel@tonic-gate const EVP_MD *md_type) 144*0Sstevel@tonic-gate { 145*0Sstevel@tonic-gate if (!(p12->mac = PKCS12_MAC_DATA_new())) return PKCS12_ERROR; 146*0Sstevel@tonic-gate if (iter > 1) { 147*0Sstevel@tonic-gate if(!(p12->mac->iter = M_ASN1_INTEGER_new())) { 148*0Sstevel@tonic-gate PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE); 149*0Sstevel@tonic-gate return 0; 150*0Sstevel@tonic-gate } 151*0Sstevel@tonic-gate ASN1_INTEGER_set(p12->mac->iter, iter); 152*0Sstevel@tonic-gate } 153*0Sstevel@tonic-gate if (!saltlen) saltlen = PKCS12_SALT_LEN; 154*0Sstevel@tonic-gate p12->mac->salt->length = saltlen; 155*0Sstevel@tonic-gate if (!(p12->mac->salt->data = OPENSSL_malloc (saltlen))) { 156*0Sstevel@tonic-gate PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE); 157*0Sstevel@tonic-gate return 0; 158*0Sstevel@tonic-gate } 159*0Sstevel@tonic-gate if (!salt) { 160*0Sstevel@tonic-gate if (RAND_pseudo_bytes (p12->mac->salt->data, saltlen) < 0) 161*0Sstevel@tonic-gate return 0; 162*0Sstevel@tonic-gate } 163*0Sstevel@tonic-gate else memcpy (p12->mac->salt->data, salt, saltlen); 164*0Sstevel@tonic-gate p12->mac->dinfo->algor->algorithm = OBJ_nid2obj(EVP_MD_type(md_type)); 165*0Sstevel@tonic-gate if (!(p12->mac->dinfo->algor->parameter = ASN1_TYPE_new())) { 166*0Sstevel@tonic-gate PKCS12err(PKCS12_F_PKCS12_SETUP_MAC, ERR_R_MALLOC_FAILURE); 167*0Sstevel@tonic-gate return 0; 168*0Sstevel@tonic-gate } 169*0Sstevel@tonic-gate p12->mac->dinfo->algor->parameter->type = V_ASN1_NULL; 170*0Sstevel@tonic-gate 171*0Sstevel@tonic-gate return 1; 172*0Sstevel@tonic-gate } 173*0Sstevel@tonic-gate #endif 174