sl@0: /* p12_crpt.c */
sl@0: /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
sl@0:  * project 1999.
sl@0:  */
sl@0: /* ====================================================================
sl@0:  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
sl@0:  *
sl@0:  * Redistribution and use in source and binary forms, with or without
sl@0:  * modification, are permitted provided that the following conditions
sl@0:  * are met:
sl@0:  *
sl@0:  * 1. Redistributions of source code must retain the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer. 
sl@0:  *
sl@0:  * 2. Redistributions in binary form must reproduce the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer in
sl@0:  *    the documentation and/or other materials provided with the
sl@0:  *    distribution.
sl@0:  *
sl@0:  * 3. All advertising materials mentioning features or use of this
sl@0:  *    software must display the following acknowledgment:
sl@0:  *    "This product includes software developed by the OpenSSL Project
sl@0:  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
sl@0:  *
sl@0:  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
sl@0:  *    endorse or promote products derived from this software without
sl@0:  *    prior written permission. For written permission, please contact
sl@0:  *    licensing@OpenSSL.org.
sl@0:  *
sl@0:  * 5. Products derived from this software may not be called "OpenSSL"
sl@0:  *    nor may "OpenSSL" appear in their names without prior written
sl@0:  *    permission of the OpenSSL Project.
sl@0:  *
sl@0:  * 6. Redistributions of any form whatsoever must retain the following
sl@0:  *    acknowledgment:
sl@0:  *    "This product includes software developed by the OpenSSL Project
sl@0:  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
sl@0:  *
sl@0:  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
sl@0:  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
sl@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
sl@0:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
sl@0:  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
sl@0:  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
sl@0:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
sl@0:  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
sl@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
sl@0:  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
sl@0:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
sl@0:  * OF THE POSSIBILITY OF SUCH DAMAGE.
sl@0:  * ====================================================================
sl@0:  *
sl@0:  * This product includes cryptographic software written by Eric Young
sl@0:  * (eay@cryptsoft.com).  This product includes software written by Tim
sl@0:  * Hudson (tjh@cryptsoft.com).
sl@0:  *
sl@0:  */
sl@0: 
sl@0: #include <stdio.h>
sl@0: #include "cryptlib.h"
sl@0: #include <openssl/pkcs12.h>
sl@0: 
sl@0: /* PKCS#12 specific PBE functions */
sl@0: 
sl@0: EXPORT_C void PKCS12_PBE_add(void)
sl@0: {
sl@0: #ifndef OPENSSL_NO_RC4
sl@0: EVP_PBE_alg_add(NID_pbe_WithSHA1And128BitRC4, EVP_rc4(), EVP_sha1(),
sl@0: 							 PKCS12_PBE_keyivgen);
sl@0: EVP_PBE_alg_add(NID_pbe_WithSHA1And40BitRC4, EVP_rc4_40(), EVP_sha1(),
sl@0: 							 PKCS12_PBE_keyivgen);
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_DES
sl@0: EVP_PBE_alg_add(NID_pbe_WithSHA1And3_Key_TripleDES_CBC,
sl@0: 		 	EVP_des_ede3_cbc(), EVP_sha1(), PKCS12_PBE_keyivgen);
sl@0: EVP_PBE_alg_add(NID_pbe_WithSHA1And2_Key_TripleDES_CBC, 
sl@0: 			EVP_des_ede_cbc(), EVP_sha1(), PKCS12_PBE_keyivgen);
sl@0: #endif
sl@0: #ifndef OPENSSL_NO_RC2
sl@0: EVP_PBE_alg_add(NID_pbe_WithSHA1And128BitRC2_CBC, EVP_rc2_cbc(),
sl@0: 					EVP_sha1(), PKCS12_PBE_keyivgen);
sl@0: EVP_PBE_alg_add(NID_pbe_WithSHA1And40BitRC2_CBC, EVP_rc2_40_cbc(),
sl@0: 					EVP_sha1(), PKCS12_PBE_keyivgen);
sl@0: #endif
sl@0: }
sl@0: 
sl@0: EXPORT_C int PKCS12_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
sl@0: 		ASN1_TYPE *param, const EVP_CIPHER *cipher, const EVP_MD *md, int en_de)
sl@0: {
sl@0: 	PBEPARAM *pbe;
sl@0: 	int saltlen, iter, ret;
sl@0: 	unsigned char *salt;
sl@0: 	const unsigned char *pbuf;
sl@0: 	unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
sl@0: 
sl@0: 	/* Extract useful info from parameter */
sl@0: 	if (param == NULL || param->type != V_ASN1_SEQUENCE ||
sl@0: 	    param->value.sequence == NULL) {
sl@0: 		PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN,PKCS12_R_DECODE_ERROR);
sl@0: 		return 0;
sl@0: 	}
sl@0: 
sl@0: 	pbuf = param->value.sequence->data;
sl@0: 	if (!(pbe = d2i_PBEPARAM(NULL, &pbuf, param->value.sequence->length))) {
sl@0: 		PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN,PKCS12_R_DECODE_ERROR);
sl@0: 		return 0;
sl@0: 	}
sl@0: 
sl@0: 	if (!pbe->iter) iter = 1;
sl@0: 	else iter = ASN1_INTEGER_get (pbe->iter);
sl@0: 	salt = pbe->salt->data;
sl@0: 	saltlen = pbe->salt->length;
sl@0: 	if (!PKCS12_key_gen (pass, passlen, salt, saltlen, PKCS12_KEY_ID,
sl@0: 			     iter, EVP_CIPHER_key_length(cipher), key, md)) {
sl@0: 		PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN,PKCS12_R_KEY_GEN_ERROR);
sl@0: 		PBEPARAM_free(pbe);
sl@0: 		return 0;
sl@0: 	}
sl@0: 	if (!PKCS12_key_gen (pass, passlen, salt, saltlen, PKCS12_IV_ID,
sl@0: 				iter, EVP_CIPHER_iv_length(cipher), iv, md)) {
sl@0: 		PKCS12err(PKCS12_F_PKCS12_PBE_KEYIVGEN,PKCS12_R_IV_GEN_ERROR);
sl@0: 		PBEPARAM_free(pbe);
sl@0: 		return 0;
sl@0: 	}
sl@0: 	PBEPARAM_free(pbe);
sl@0: 	ret = EVP_CipherInit_ex(ctx, cipher, NULL, key, iv, en_de);
sl@0: 	OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH);
sl@0: 	OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH);
sl@0: 	return ret;
sl@0: }