[thirdparty/openssl.git] / crypto / evp / evp_pbe.c

/* evp_pbe.c */
/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
 * project 1999.
 */
/* ====================================================================
 * Copyright (c) 1999-2006 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */

#include <stdio.h>
#include "cryptlib.h"
#include <openssl/evp.h>
#include <openssl/pkcs12.h>
#include <openssl/x509.h>

/* Password based encryption (PBE) functions */

DECLARE_STACK_OF(EVP_PBE_CTL)
static STACK_OF(EVP_PBE_CTL) *pbe_algs;

/* Setup a cipher context from a PBE algorithm */

typedef struct
	{
	int pbe_type;
	int pbe_nid;
	int cipher_nid;
	int md_nid;
	EVP_PBE_KEYGEN *keygen;
	} EVP_PBE_CTL;

static const EVP_PBE_CTL builtin_pbe[] = 
	{
	{EVP_PBE_TYPE_OUTER, NID_pbeWithMD2AndDES_CBC,
			NID_des_cbc, NID_md2, PKCS5_PBE_keyivgen},
	{EVP_PBE_TYPE_OUTER, NID_pbeWithMD5AndDES_CBC,
			NID_des_cbc, NID_md5, PKCS5_PBE_keyivgen},
	{EVP_PBE_TYPE_OUTER, NID_pbeWithSHA1AndRC2_CBC,
			NID_rc2_64_cbc, NID_sha1, PKCS5_PBE_keyivgen},

	{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And128BitRC4,
			NID_rc4, NID_sha1, PKCS12_PBE_keyivgen},
	{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And40BitRC4,
			NID_rc4_40, NID_sha1, PKCS12_PBE_keyivgen},
	{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And3_Key_TripleDES_CBC,
		 	NID_des_ede3_cbc, NID_sha1, PKCS12_PBE_keyivgen},
	{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And2_Key_TripleDES_CBC, 
			NID_des_ede_cbc, NID_sha1, PKCS12_PBE_keyivgen},
	{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And128BitRC2_CBC,
			NID_rc2_cbc, NID_sha1, PKCS12_PBE_keyivgen},
	{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And40BitRC2_CBC,
			NID_rc2_40_cbc, NID_sha1, PKCS12_PBE_keyivgen},

#ifndef OPENSSL_NO_HMAC
	{EVP_PBE_TYPE_OUTER, NID_pbes2, -1, -1, PKCS5_v2_PBE_keyivgen},
#endif
	{EVP_PBE_TYPE_OUTER, NID_pbeWithMD2AndRC2_CBC,
			NID_rc2_64_cbc, NID_md2, PKCS5_PBE_keyivgen},
	{EVP_PBE_TYPE_OUTER, NID_pbeWithMD5AndRC2_CBC,
			NID_rc2_64_cbc, NID_md5, PKCS5_PBE_keyivgen},
	{EVP_PBE_TYPE_OUTER, NID_pbeWithSHA1AndDES_CBC,
			NID_des_cbc, NID_sha1, PKCS5_PBE_keyivgen},


	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA1, -1, NID_sha1, 0},
	{EVP_PBE_TYPE_PRF, NID_hmacWithMD5, -1, NID_md5, 0},
	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA224, -1, NID_sha224, 0},
	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA256, -1, NID_sha256, 0},
	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA384, -1, NID_sha384, 0},
	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA512, -1, NID_sha512, 0},
	{EVP_PBE_TYPE_PRF, NID_id_HMACGostR3411_94, -1, NID_id_GostR3411_94, 0},
	};

#ifdef TEST
int main(int argc, char **argv)
	{
	int i, nid_md, nid_cipher;
	EVP_PBE_CTL *tpbe, *tpbe2;
	/*OpenSSL_add_all_algorithms();*/

	for (i = 0; i < sizeof(builtin_pbe)/sizeof(EVP_PBE_CTL); i++)
		{
		tpbe = builtin_pbe + i;
		fprintf(stderr, "%d %d %s ", tpbe->pbe_type, tpbe->pbe_nid,
						OBJ_nid2sn(tpbe->pbe_nid));
		if (EVP_PBE_find(tpbe->pbe_type, tpbe->pbe_nid,
					&nid_cipher ,&nid_md,0))
			fprintf(stderr, "Found %s %s\n",
					OBJ_nid2sn(nid_cipher),
					OBJ_nid2sn(nid_md));
		else
			fprintf(stderr, "Find ERROR!!\n");
		}

	return 0;
	}
#endif
		

int EVP_PBE_CipherInit(ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
		       ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de)
	{
	const EVP_CIPHER *cipher;
	const EVP_MD *md;
	int cipher_nid, md_nid;
	EVP_PBE_KEYGEN *keygen;

	if (!EVP_PBE_find(EVP_PBE_TYPE_OUTER, OBJ_obj2nid(pbe_obj),
					&cipher_nid, &md_nid, &keygen))
		{
		char obj_tmp[80];
		EVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_UNKNOWN_PBE_ALGORITHM);
		if (!pbe_obj) BUF_strlcpy (obj_tmp, "NULL", sizeof obj_tmp);
		else i2t_ASN1_OBJECT(obj_tmp, sizeof obj_tmp, pbe_obj);
		ERR_add_error_data(2, "TYPE=", obj_tmp);
		return 0;
		}

	if(!pass)
		passlen = 0;
	else if (passlen == -1)
		passlen = strlen(pass);

	if (cipher_nid == -1)
		cipher = NULL;
	else
		cipher = EVP_get_cipherbynid(cipher_nid);

	if (md_nid == -1)
		md = NULL;
	else
		md = EVP_get_digestbynid(md_nid);

	if (!keygen(ctx, pass, passlen, param, cipher, md, en_de))
		{
		EVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_KEYGEN_FAILURE);
		return 0;
		}
	return 1;	
}

static int pbe_cmp2(const void *a, const void *b)
	{
	const EVP_PBE_CTL *pbe1 = a;
	const EVP_PBE_CTL *pbe2 = b;
	int ret = pbe1->pbe_type - pbe2->pbe_type;
	if (ret)
		return ret;
	else
		return pbe1->pbe_nid - pbe2->pbe_nid;
	}

static int pbe_cmp(const EVP_PBE_CTL * const *a, const EVP_PBE_CTL * const *b)
	{
	int ret = (*a)->pbe_type - (*b)->pbe_type;
	if (ret)
		return ret;
	else
		return (*a)->pbe_nid - (*b)->pbe_nid;
	}

/* Add a PBE algorithm */

int EVP_PBE_alg_add_type(int pbe_type, int pbe_nid, int cipher_nid, int md_nid,
			 EVP_PBE_KEYGEN *keygen)
	{
	EVP_PBE_CTL *pbe_tmp;
	if (!pbe_algs)
		pbe_algs = sk_EVP_PBE_CTL_new(pbe_cmp);
	if (!(pbe_tmp = (EVP_PBE_CTL*) OPENSSL_malloc (sizeof(EVP_PBE_CTL))))
		{
		EVPerr(EVP_F_EVP_PBE_ALG_ADD_TYPE,ERR_R_MALLOC_FAILURE);
		return 0;
		}
	pbe_tmp->pbe_type = pbe_type;
	pbe_tmp->pbe_nid = pbe_nid;
	pbe_tmp->cipher_nid = cipher_nid;
	pbe_tmp->md_nid = md_nid;
	pbe_tmp->keygen = keygen;


	sk_EVP_PBE_CTL_push (pbe_algs, pbe_tmp);
	return 1;
	}

int EVP_PBE_alg_add(int nid, const EVP_CIPHER *cipher, const EVP_MD *md,
		    EVP_PBE_KEYGEN *keygen)
	{
	int cipher_nid, md_nid;
	if (cipher)
		cipher_nid = EVP_CIPHER_type(cipher);
	else
		cipher_nid = -1;
	if (md)
		md_nid = EVP_MD_type(md);
	else
		md_nid = -1;

	return EVP_PBE_alg_add_type(EVP_PBE_TYPE_OUTER, nid,
					cipher_nid, md_nid, keygen);
	}

int EVP_PBE_find(int type, int pbe_nid,
		 int *pcnid, int *pmnid, EVP_PBE_KEYGEN **pkeygen)
	{
	EVP_PBE_CTL *pbetmp = NULL, pbelu;
	int i;
	if (pbe_nid == NID_undef)
		return 0;

	pbelu.pbe_type = type;
	pbelu.pbe_nid = pbe_nid;

	if (pbe_algs)
		{
		i = sk_EVP_PBE_CTL_find(pbe_algs, &pbelu);
		if (i != -1)
			pbetmp = sk_EVP_PBE_CTL_value (pbe_algs, i);
		}
	if (pbetmp == NULL)
		{
		pbetmp = (EVP_PBE_CTL *) OBJ_bsearch((char *)&pbelu,
        		(char *)builtin_pbe,
			sizeof(builtin_pbe)/sizeof(EVP_PBE_CTL),
        		sizeof(EVP_PBE_CTL),
			pbe_cmp2);
		}
	if (pbetmp == NULL)
		return 0;
	if (pcnid)
		*pcnid = pbetmp->cipher_nid;
	if (pmnid)
		*pmnid = pbetmp->md_nid;
	if (pkeygen)
		*pkeygen = pbetmp->keygen;
	return 1;
	}

static void free_evp_pbe_ctl(EVP_PBE_CTL *pbe)
	 {
	 OPENSSL_freeFunc(pbe);
	 }

void EVP_PBE_cleanup(void)
	{
	sk_EVP_PBE_CTL_pop_free(pbe_algs, free_evp_pbe_ctl);
	pbe_algs = NULL;
	}
Commit	Line	Data
61f5b6f3	1	/* evp_pbe.c */
cfcefcbe DSH	2	/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
	3	* project 1999.
	4	*/
	5	/* ====================================================================
856640b5	6	* Copyright (c) 1999-2006 The OpenSSL Project. All rights reserved.
cfcefcbe DSH	7	*
	8	* Redistribution and use in source and binary forms, with or without
	9	* modification, are permitted provided that the following conditions
	10	* are met:
	11	*
	12	* 1. Redistributions of source code must retain the above copyright
	13	* notice, this list of conditions and the following disclaimer.
	14	*
	15	* 2. Redistributions in binary form must reproduce the above copyright
	16	* notice, this list of conditions and the following disclaimer in
	17	* the documentation and/or other materials provided with the
	18	* distribution.
	19	*
	20	* 3. All advertising materials mentioning features or use of this
	21	* software must display the following acknowledgment:
	22	* "This product includes software developed by the OpenSSL Project
	23	* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
	24	*
	25	* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
	26	* endorse or promote products derived from this software without
	27	* prior written permission. For written permission, please contact
	28	* licensing@OpenSSL.org.
	29	*
	30	* 5. Products derived from this software may not be called "OpenSSL"
	31	* nor may "OpenSSL" appear in their names without prior written
	32	* permission of the OpenSSL Project.
	33	*
	34	* 6. Redistributions of any form whatsoever must retain the following
	35	* acknowledgment:
	36	* "This product includes software developed by the OpenSSL Project
	37	* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
	38	*
	39	* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
	40	* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	41	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	42	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
	43	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	44	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	45	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	46	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	47	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	48	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	49	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
	50	* OF THE POSSIBILITY OF SUCH DAMAGE.
	51	* ====================================================================
	52	*
	53	* This product includes cryptographic software written by Eric Young
	54	* (eay@cryptsoft.com). This product includes software written by Tim
	55	* Hudson (tjh@cryptsoft.com).
	56	*
	57	*/
	58
	59	#include <stdio.h>
7b63c0fa	60	#include "cryptlib.h"
ec577822	61	#include <openssl/evp.h>
b8f702a0	62	#include <openssl/pkcs12.h>
ec577822	63	#include <openssl/x509.h>
cfcefcbe DSH	64
	65	/* Password based encryption (PBE) functions */
	66
d4cdbab9	67	DECLARE_STACK_OF(EVP_PBE_CTL)
5ce278a7	68	static STACK_OF(EVP_PBE_CTL) *pbe_algs;
cfcefcbe DSH	69
	70	/* Setup a cipher context from a PBE algorithm */
	71
856640b5 DSH	72	typedef struct
	73	{
	74	int pbe_type;
	75	int pbe_nid;
	76	int cipher_nid;
	77	int md_nid;
	78	EVP_PBE_KEYGEN *keygen;
	79	} EVP_PBE_CTL;
cfcefcbe	80
560b79cb	81	static const EVP_PBE_CTL builtin_pbe[] =
b8f702a0 DSH	82	{
	83	{EVP_PBE_TYPE_OUTER, NID_pbeWithMD2AndDES_CBC,
	84	NID_des_cbc, NID_md2, PKCS5_PBE_keyivgen},
	85	{EVP_PBE_TYPE_OUTER, NID_pbeWithMD5AndDES_CBC,
	86	NID_des_cbc, NID_md5, PKCS5_PBE_keyivgen},
	87	{EVP_PBE_TYPE_OUTER, NID_pbeWithSHA1AndRC2_CBC,
	88	NID_rc2_64_cbc, NID_sha1, PKCS5_PBE_keyivgen},
	89
	90	{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And128BitRC4,
	91	NID_rc4, NID_sha1, PKCS12_PBE_keyivgen},
	92	{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And40BitRC4,
	93	NID_rc4_40, NID_sha1, PKCS12_PBE_keyivgen},
	94	{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And3_Key_TripleDES_CBC,
	95	NID_des_ede3_cbc, NID_sha1, PKCS12_PBE_keyivgen},
	96	{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And2_Key_TripleDES_CBC,
	97	NID_des_ede_cbc, NID_sha1, PKCS12_PBE_keyivgen},
	98	{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And128BitRC2_CBC,
	99	NID_rc2_cbc, NID_sha1, PKCS12_PBE_keyivgen},
	100	{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And40BitRC2_CBC,
	101	NID_rc2_40_cbc, NID_sha1, PKCS12_PBE_keyivgen},
	102
	103	#ifndef OPENSSL_NO_HMAC
	104	{EVP_PBE_TYPE_OUTER, NID_pbes2, -1, -1, PKCS5_v2_PBE_keyivgen},
	105	#endif
	106	{EVP_PBE_TYPE_OUTER, NID_pbeWithMD2AndRC2_CBC,
	107	NID_rc2_64_cbc, NID_md2, PKCS5_PBE_keyivgen},
	108	{EVP_PBE_TYPE_OUTER, NID_pbeWithMD5AndRC2_CBC,
	109	NID_rc2_64_cbc, NID_md5, PKCS5_PBE_keyivgen},
	110	{EVP_PBE_TYPE_OUTER, NID_pbeWithSHA1AndDES_CBC,
	111	NID_des_cbc, NID_sha1, PKCS5_PBE_keyivgen},
	112
	113
	114	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA1, -1, NID_sha1, 0},
b8f702a0	115	{EVP_PBE_TYPE_PRF, NID_hmacWithMD5, -1, NID_md5, 0},
1631d5f9 DSH	116	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA224, -1, NID_sha224, 0},
	117	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA256, -1, NID_sha256, 0},
	118	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA384, -1, NID_sha384, 0},
	119	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA512, -1, NID_sha512, 0},
b0ec1146	120	{EVP_PBE_TYPE_PRF, NID_id_HMACGostR3411_94, -1, NID_id_GostR3411_94, 0},
b8f702a0 DSH	121	};
	122
	123	#ifdef TEST
	124	int main(int argc, char **argv)
	125	{
	126	int i, nid_md, nid_cipher;
	127	EVP_PBE_CTL tpbe, tpbe2;
	128	/OpenSSL_add_all_algorithms();/
	129
	130	for (i = 0; i < sizeof(builtin_pbe)/sizeof(EVP_PBE_CTL); i++)
	131	{
	132	tpbe = builtin_pbe + i;
	133	fprintf(stderr, "%d %d %s ", tpbe->pbe_type, tpbe->pbe_nid,
	134	OBJ_nid2sn(tpbe->pbe_nid));
	135	if (EVP_PBE_find(tpbe->pbe_type, tpbe->pbe_nid,
	136	&nid_cipher ,&nid_md,0))
	137	fprintf(stderr, "Found %s %s\n",
	138	OBJ_nid2sn(nid_cipher),
	139	OBJ_nid2sn(nid_md));
	140	else
	141	fprintf(stderr, "Find ERROR!!\n");
	142	}
	143
	144	return 0;
	145	}
	146	#endif
	147
	148
	149
8afca8d9	150	int EVP_PBE_CipherInit(ASN1_OBJECT pbe_obj, const char pass, int passlen,
5ce278a7	151	ASN1_TYPE param, EVP_CIPHER_CTX ctx, int en_de)
856640b5 DSH	152	{
	153	const EVP_CIPHER *cipher;
	154	const EVP_MD *md;
	155	int cipher_nid, md_nid;
	156	EVP_PBE_KEYGEN *keygen;
cfcefcbe	157
856640b5 DSH	158	if (!EVP_PBE_find(EVP_PBE_TYPE_OUTER, OBJ_obj2nid(pbe_obj),
	159	&cipher_nid, &md_nid, &keygen))
	160	{
cfcefcbe DSH	161	char obj_tmp[80];
cfcefcbe DSH	162	EVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_UNKNOWN_PBE_ALGORITHM);
d420ac2c	163	if (!pbe_obj) BUF_strlcpy (obj_tmp, "NULL", sizeof obj_tmp);
54a656ef	164	else i2t_ASN1_OBJECT(obj_tmp, sizeof obj_tmp, pbe_obj);
cfcefcbe DSH	165	ERR_add_error_data(2, "TYPE=", obj_tmp);
cfcefcbe DSH	166	return 0;
856640b5 DSH	167	}
	168
	169	if(!pass)
	170	passlen = 0;
	171	else if (passlen == -1)
	172	passlen = strlen(pass);
	173
	174	if (cipher_nid == -1)
	175	cipher = NULL;
	176	else
	177	cipher = EVP_get_cipherbynid(cipher_nid);
	178
	179	if (md_nid == -1)
	180	md = NULL;
	181	else
	182	md = EVP_get_digestbynid(md_nid);
	183
	184	if (!keygen(ctx, pass, passlen, param, cipher, md, en_de))
	185	{
cfcefcbe DSH	186	EVPerr(EVP_F_EVP_PBE_CIPHERINIT,EVP_R_KEYGEN_FAILURE);
cfcefcbe DSH	187	return 0;
856640b5	188	}
cfcefcbe DSH	189	return 1;
	190	}
	191
b8f702a0 DSH	192	static int pbe_cmp2(const void a, const void b)
	193	{
	194	const EVP_PBE_CTL *pbe1 = a;
	195	const EVP_PBE_CTL *pbe2 = b;
	196	int ret = pbe1->pbe_type - pbe2->pbe_type;
	197	if (ret)
	198	return ret;
	199	else
	200	return pbe1->pbe_nid - pbe2->pbe_nid;
	201	}
	202
5ce278a7	203	static int pbe_cmp(const EVP_PBE_CTL * const a, const EVP_PBE_CTL const *b)
856640b5	204	{
5ce278a7	205	int ret = (a)->pbe_type - (b)->pbe_type;
856640b5 DSH	206	if (ret)
	207	return ret;
	208	else
5ce278a7	209	return (a)->pbe_nid - (b)->pbe_nid;
856640b5	210	}
cfcefcbe DSH	211
	212	/* Add a PBE algorithm */
	213
856640b5	214	int EVP_PBE_alg_add_type(int pbe_type, int pbe_nid, int cipher_nid, int md_nid,
5ce278a7	215	EVP_PBE_KEYGEN *keygen)
856640b5	216	{
cfcefcbe	217	EVP_PBE_CTL *pbe_tmp;
856640b5	218	if (!pbe_algs)
5ce278a7	219	pbe_algs = sk_EVP_PBE_CTL_new(pbe_cmp);
856640b5 DSH	220	if (!(pbe_tmp = (EVP_PBE_CTL*) OPENSSL_malloc (sizeof(EVP_PBE_CTL))))
856640b5 DSH	221	{
5c95c2ac	222	EVPerr(EVP_F_EVP_PBE_ALG_ADD_TYPE,ERR_R_MALLOC_FAILURE);
cfcefcbe	223	return 0;
856640b5 DSH	224	}
	225	pbe_tmp->pbe_type = pbe_type;
	226	pbe_tmp->pbe_nid = pbe_nid;
	227	pbe_tmp->cipher_nid = cipher_nid;
	228	pbe_tmp->md_nid = md_nid;
cfcefcbe	229	pbe_tmp->keygen = keygen;
856640b5 DSH	230
856640b5 DSH	231
5ce278a7	232	sk_EVP_PBE_CTL_push (pbe_algs, pbe_tmp);
cfcefcbe	233	return 1;
856640b5 DSH	234	}
	235
	236	int EVP_PBE_alg_add(int nid, const EVP_CIPHER cipher, const EVP_MD md,
5ce278a7	237	EVP_PBE_KEYGEN *keygen)
856640b5 DSH	238	{
	239	int cipher_nid, md_nid;
	240	if (cipher)
	241	cipher_nid = EVP_CIPHER_type(cipher);
	242	else
	243	cipher_nid = -1;
	244	if (md)
	245	md_nid = EVP_MD_type(md);
	246	else
	247	md_nid = -1;
	248
	249	return EVP_PBE_alg_add_type(EVP_PBE_TYPE_OUTER, nid,
	250	cipher_nid, md_nid, keygen);
	251	}
	252
	253	int EVP_PBE_find(int type, int pbe_nid,
5ce278a7	254	int pcnid, int pmnid, EVP_PBE_KEYGEN **pkeygen)
856640b5	255	{
b8f702a0	256	EVP_PBE_CTL *pbetmp = NULL, pbelu;
856640b5 DSH	257	int i;
	258	if (pbe_nid == NID_undef)
	259	return 0;
b8f702a0	260
856640b5 DSH	261	pbelu.pbe_type = type;
856640b5 DSH	262	pbelu.pbe_nid = pbe_nid;
b8f702a0 DSH	263
	264	if (pbe_algs)
	265	{
5ce278a7	266	i = sk_EVP_PBE_CTL_find(pbe_algs, &pbelu);
b8f702a0	267	if (i != -1)
5ce278a7	268	pbetmp = sk_EVP_PBE_CTL_value (pbe_algs, i);
b8f702a0 DSH	269	}
	270	if (pbetmp == NULL)
	271	{
	272	pbetmp = (EVP_PBE_CTL ) OBJ_bsearch((char )&pbelu,
	273	(char *)builtin_pbe,
	274	sizeof(builtin_pbe)/sizeof(EVP_PBE_CTL),
	275	sizeof(EVP_PBE_CTL),
	276	pbe_cmp2);
	277	}
	278	if (pbetmp == NULL)
856640b5	279	return 0;
856640b5 DSH	280	if (pcnid)
	281	*pcnid = pbetmp->cipher_nid;
	282	if (pmnid)
	283	*pmnid = pbetmp->md_nid;
	284	if (pkeygen)
	285	*pkeygen = pbetmp->keygen;
	286	return 1;
	287	}
856640b5	288
5ce278a7 BL	289	static void free_evp_pbe_ctl(EVP_PBE_CTL *pbe)
	290	{
	291	OPENSSL_freeFunc(pbe);
	292	}
ee0508d4	293
6b691a5c	294	void EVP_PBE_cleanup(void)
856640b5	295	{
5ce278a7	296	sk_EVP_PBE_CTL_pop_free(pbe_algs, free_evp_pbe_ctl);
b64f8256	297	pbe_algs = NULL;
856640b5	298	}