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

/* evp_pbe.c */
/*
 * Written by Dr Stephen N Henson (steve@openssl.org) 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>
#include "evp_locl.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},

#ifndef OPENSSL_NO_HMAC
    {EVP_PBE_TYPE_OUTER, NID_id_pbkdf2, -1, -1, PKCS5_v2_PBKDF2_keyivgen},
#endif

    {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 (!cipher) {
            EVPerr(EVP_F_EVP_PBE_CIPHERINIT, EVP_R_UNKNOWN_CIPHER);
            return 0;
        }
    }

    if (md_nid == -1)
        md = NULL;
    else {
        md = EVP_get_digestbynid(md_nid);
        if (!md) {
            EVPerr(EVP_F_EVP_PBE_CIPHERINIT, EVP_R_UNKNOWN_DIGEST);
            return 0;
        }
    }

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

DECLARE_OBJ_BSEARCH_CMP_FN(EVP_PBE_CTL, EVP_PBE_CTL, pbe2);

static int pbe2_cmp(const EVP_PBE_CTL *pbe1, const EVP_PBE_CTL *pbe2)
{
    int ret = pbe1->pbe_type - pbe2->pbe_type;
    if (ret)
        return ret;
    else
        return pbe1->pbe_nid - pbe2->pbe_nid;
}

IMPLEMENT_OBJ_BSEARCH_CMP_FN(EVP_PBE_CTL, EVP_PBE_CTL, pbe2);

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_nid(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 = OBJ_bsearch_pbe2(&pbelu, builtin_pbe,
                                  sizeof(builtin_pbe) / sizeof(EVP_PBE_CTL));
    }
    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 */
0f113f3e MC	2	/*
	3	* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
	4	* 1999.
cfcefcbe DSH	5	*/
cfcefcbe DSH	6	/* ====================================================================
856640b5	7	* Copyright (c) 1999-2006 The OpenSSL Project. All rights reserved.
cfcefcbe DSH	8	*
	9	* Redistribution and use in source and binary forms, with or without
	10	* modification, are permitted provided that the following conditions
	11	* are met:
	12	*
	13	* 1. Redistributions of source code must retain the above copyright
0f113f3e	14	* notice, this list of conditions and the following disclaimer.
cfcefcbe DSH	15	*
	16	* 2. Redistributions in binary form must reproduce the above copyright
	17	* notice, this list of conditions and the following disclaimer in
	18	* the documentation and/or other materials provided with the
	19	* distribution.
	20	*
	21	* 3. All advertising materials mentioning features or use of this
	22	* software must display the following acknowledgment:
	23	* "This product includes software developed by the OpenSSL Project
	24	* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
	25	*
	26	* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
	27	* endorse or promote products derived from this software without
	28	* prior written permission. For written permission, please contact
	29	* licensing@OpenSSL.org.
	30	*
	31	* 5. Products derived from this software may not be called "OpenSSL"
	32	* nor may "OpenSSL" appear in their names without prior written
	33	* permission of the OpenSSL Project.
	34	*
	35	* 6. Redistributions of any form whatsoever must retain the following
	36	* acknowledgment:
	37	* "This product includes software developed by the OpenSSL Project
	38	* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
	39	*
	40	* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
	41	* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	42	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	43	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
	44	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	45	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	46	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	47	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	48	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	49	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	50	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
	51	* OF THE POSSIBILITY OF SUCH DAMAGE.
	52	* ====================================================================
	53	*
	54	* This product includes cryptographic software written by Eric Young
	55	* (eay@cryptsoft.com). This product includes software written by Tim
	56	* Hudson (tjh@cryptsoft.com).
	57	*
	58	*/
	59
	60	#include <stdio.h>
7b63c0fa	61	#include "cryptlib.h"
ec577822	62	#include <openssl/evp.h>
b8f702a0	63	#include <openssl/pkcs12.h>
ec577822	64	#include <openssl/x509.h>
3d63b396	65	#include "evp_locl.h"
cfcefcbe DSH	66
	67	/* Password based encryption (PBE) functions */
	68
d4cdbab9	69	DECLARE_STACK_OF(EVP_PBE_CTL)
5ce278a7	70	static STACK_OF(EVP_PBE_CTL) *pbe_algs;
cfcefcbe DSH	71
	72	/* Setup a cipher context from a PBE algorithm */
	73
0f113f3e MC	74	typedef struct {
	75	int pbe_type;
	76	int pbe_nid;
	77	int cipher_nid;
	78	int md_nid;
	79	EVP_PBE_KEYGEN *keygen;
	80	} EVP_PBE_CTL;
	81
	82	static const EVP_PBE_CTL builtin_pbe[] = {
	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},
b8f702a0	89
3d63b396	90	#ifndef OPENSSL_NO_HMAC
0f113f3e	91	{EVP_PBE_TYPE_OUTER, NID_id_pbkdf2, -1, -1, PKCS5_v2_PBKDF2_keyivgen},
3d63b396 DSH	92	#endif
3d63b396 DSH	93
0f113f3e MC	94	{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And128BitRC4,
	95	NID_rc4, NID_sha1, PKCS12_PBE_keyivgen},
	96	{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And40BitRC4,
	97	NID_rc4_40, NID_sha1, PKCS12_PBE_keyivgen},
	98	{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And3_Key_TripleDES_CBC,
	99	NID_des_ede3_cbc, NID_sha1, PKCS12_PBE_keyivgen},
	100	{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And2_Key_TripleDES_CBC,
	101	NID_des_ede_cbc, NID_sha1, PKCS12_PBE_keyivgen},
	102	{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And128BitRC2_CBC,
	103	NID_rc2_cbc, NID_sha1, PKCS12_PBE_keyivgen},
	104	{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And40BitRC2_CBC,
	105	NID_rc2_40_cbc, NID_sha1, PKCS12_PBE_keyivgen},
b8f702a0 DSH	106
b8f702a0 DSH	107	#ifndef OPENSSL_NO_HMAC
0f113f3e	108	{EVP_PBE_TYPE_OUTER, NID_pbes2, -1, -1, PKCS5_v2_PBE_keyivgen},
b8f702a0	109	#endif
0f113f3e MC	110	{EVP_PBE_TYPE_OUTER, NID_pbeWithMD2AndRC2_CBC,
	111	NID_rc2_64_cbc, NID_md2, PKCS5_PBE_keyivgen},
	112	{EVP_PBE_TYPE_OUTER, NID_pbeWithMD5AndRC2_CBC,
	113	NID_rc2_64_cbc, NID_md5, PKCS5_PBE_keyivgen},
	114	{EVP_PBE_TYPE_OUTER, NID_pbeWithSHA1AndDES_CBC,
	115	NID_des_cbc, NID_sha1, PKCS5_PBE_keyivgen},
	116
	117	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA1, -1, NID_sha1, 0},
	118	{EVP_PBE_TYPE_PRF, NID_hmacWithMD5, -1, NID_md5, 0},
	119	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA224, -1, NID_sha224, 0},
	120	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA256, -1, NID_sha256, 0},
	121	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA384, -1, NID_sha384, 0},
	122	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA512, -1, NID_sha512, 0},
	123	{EVP_PBE_TYPE_PRF, NID_id_HMACGostR3411_94, -1, NID_id_GostR3411_94, 0},
	124	};
b8f702a0 DSH	125
	126	#ifdef TEST
	127	int main(int argc, char **argv)
0f113f3e MC	128	{
	129	int i, nid_md, nid_cipher;
	130	EVP_PBE_CTL tpbe, tpbe2;
	131	/*
	132	* OpenSSL_add_all_algorithms();
	133	*/
	134
	135	for (i = 0; i < sizeof(builtin_pbe) / sizeof(EVP_PBE_CTL); i++) {
	136	tpbe = builtin_pbe + i;
	137	fprintf(stderr, "%d %d %s ", tpbe->pbe_type, tpbe->pbe_nid,
	138	OBJ_nid2sn(tpbe->pbe_nid));
	139	if (EVP_PBE_find(tpbe->pbe_type, tpbe->pbe_nid,
	140	&nid_cipher, &nid_md, 0))
	141	fprintf(stderr, "Found %s %s\n",
	142	OBJ_nid2sn(nid_cipher), OBJ_nid2sn(nid_md));
	143	else
	144	fprintf(stderr, "Find ERROR!!\n");
	145	}
	146
	147	return 0;
	148	}
b8f702a0	149	#endif
b8f702a0	150
8afca8d9	151	int EVP_PBE_CipherInit(ASN1_OBJECT pbe_obj, const char pass, int passlen,
0f113f3e MC	152	ASN1_TYPE param, EVP_CIPHER_CTX ctx, int en_de)
	153	{
	154	const EVP_CIPHER *cipher;
	155	const EVP_MD *md;
	156	int cipher_nid, md_nid;
	157	EVP_PBE_KEYGEN *keygen;
	158
	159	if (!EVP_PBE_find(EVP_PBE_TYPE_OUTER, OBJ_obj2nid(pbe_obj),
	160	&cipher_nid, &md_nid, &keygen)) {
	161	char obj_tmp[80];
	162	EVPerr(EVP_F_EVP_PBE_CIPHERINIT, EVP_R_UNKNOWN_PBE_ALGORITHM);
	163	if (!pbe_obj)
	164	BUF_strlcpy(obj_tmp, "NULL", sizeof obj_tmp);
	165	else
	166	i2t_ASN1_OBJECT(obj_tmp, sizeof obj_tmp, pbe_obj);
	167	ERR_add_error_data(2, "TYPE=", obj_tmp);
	168	return 0;
	169	}
	170
	171	if (!pass)
	172	passlen = 0;
	173	else if (passlen == -1)
	174	passlen = strlen(pass);
	175
	176	if (cipher_nid == -1)
	177	cipher = NULL;
	178	else {
	179	cipher = EVP_get_cipherbynid(cipher_nid);
	180	if (!cipher) {
	181	EVPerr(EVP_F_EVP_PBE_CIPHERINIT, EVP_R_UNKNOWN_CIPHER);
	182	return 0;
	183	}
	184	}
	185
	186	if (md_nid == -1)
	187	md = NULL;
	188	else {
	189	md = EVP_get_digestbynid(md_nid);
	190	if (!md) {
	191	EVPerr(EVP_F_EVP_PBE_CIPHERINIT, EVP_R_UNKNOWN_DIGEST);
	192	return 0;
	193	}
	194	}
	195
	196	if (!keygen(ctx, pass, passlen, param, cipher, md, en_de)) {
	197	EVPerr(EVP_F_EVP_PBE_CIPHERINIT, EVP_R_KEYGEN_FAILURE);
	198	return 0;
	199	}
	200	return 1;
cfcefcbe DSH	201	}
cfcefcbe DSH	202
e19106f5	203	DECLARE_OBJ_BSEARCH_CMP_FN(EVP_PBE_CTL, EVP_PBE_CTL, pbe2);
babb3798	204
e19106f5	205	static int pbe2_cmp(const EVP_PBE_CTL pbe1, const EVP_PBE_CTL pbe2)
0f113f3e MC	206	{
	207	int ret = pbe1->pbe_type - pbe2->pbe_type;
	208	if (ret)
	209	return ret;
	210	else
	211	return pbe1->pbe_nid - pbe2->pbe_nid;
	212	}
b8f702a0	213
e19106f5	214	IMPLEMENT_OBJ_BSEARCH_CMP_FN(EVP_PBE_CTL, EVP_PBE_CTL, pbe2);
babb3798	215
0f113f3e MC	216	static int pbe_cmp(const EVP_PBE_CTL const a, const EVP_PBE_CTL const b)
	217	{
	218	int ret = (a)->pbe_type - (b)->pbe_type;
	219	if (ret)
	220	return ret;
	221	else
	222	return (a)->pbe_nid - (b)->pbe_nid;
	223	}
cfcefcbe DSH	224
	225	/* Add a PBE algorithm */
	226
0f113f3e MC	227	int EVP_PBE_alg_add_type(int pbe_type, int pbe_nid, int cipher_nid,
	228	int md_nid, EVP_PBE_KEYGEN *keygen)
	229	{
	230	EVP_PBE_CTL *pbe_tmp;
	231	if (!pbe_algs)
	232	pbe_algs = sk_EVP_PBE_CTL_new(pbe_cmp);
	233	if (!(pbe_tmp = (EVP_PBE_CTL *)OPENSSL_malloc(sizeof(EVP_PBE_CTL)))) {
	234	EVPerr(EVP_F_EVP_PBE_ALG_ADD_TYPE, ERR_R_MALLOC_FAILURE);
	235	return 0;
	236	}
	237	pbe_tmp->pbe_type = pbe_type;
	238	pbe_tmp->pbe_nid = pbe_nid;
	239	pbe_tmp->cipher_nid = cipher_nid;
	240	pbe_tmp->md_nid = md_nid;
	241	pbe_tmp->keygen = keygen;
	242
	243	sk_EVP_PBE_CTL_push(pbe_algs, pbe_tmp);
	244	return 1;
	245	}
856640b5 DSH	246
856640b5 DSH	247	int EVP_PBE_alg_add(int nid, const EVP_CIPHER cipher, const EVP_MD md,
0f113f3e MC	248	EVP_PBE_KEYGEN *keygen)
	249	{
	250	int cipher_nid, md_nid;
	251	if (cipher)
	252	cipher_nid = EVP_CIPHER_nid(cipher);
	253	else
	254	cipher_nid = -1;
	255	if (md)
	256	md_nid = EVP_MD_type(md);
	257	else
	258	md_nid = -1;
	259
	260	return EVP_PBE_alg_add_type(EVP_PBE_TYPE_OUTER, nid,
	261	cipher_nid, md_nid, keygen);
	262	}
856640b5 DSH	263
856640b5 DSH	264	int EVP_PBE_find(int type, int pbe_nid,
0f113f3e MC	265	int pcnid, int pmnid, EVP_PBE_KEYGEN **pkeygen)
	266	{
	267	EVP_PBE_CTL *pbetmp = NULL, pbelu;
	268	int i;
	269	if (pbe_nid == NID_undef)
	270	return 0;
	271
	272	pbelu.pbe_type = type;
	273	pbelu.pbe_nid = pbe_nid;
	274
	275	if (pbe_algs) {
	276	i = sk_EVP_PBE_CTL_find(pbe_algs, &pbelu);
	277	if (i != -1)
	278	pbetmp = sk_EVP_PBE_CTL_value(pbe_algs, i);
	279	}
	280	if (pbetmp == NULL) {
	281	pbetmp = OBJ_bsearch_pbe2(&pbelu, builtin_pbe,
	282	sizeof(builtin_pbe) / sizeof(EVP_PBE_CTL));
	283	}
	284	if (pbetmp == NULL)
	285	return 0;
	286	if (pcnid)
	287	*pcnid = pbetmp->cipher_nid;
	288	if (pmnid)
	289	*pmnid = pbetmp->md_nid;
	290	if (pkeygen)
	291	*pkeygen = pbetmp->keygen;
	292	return 1;
	293	}
856640b5	294
5ce278a7	295	static void free_evp_pbe_ctl(EVP_PBE_CTL *pbe)
0f113f3e MC	296	{
	297	OPENSSL_freeFunc(pbe);
	298	}
ee0508d4	299
6b691a5c	300	void EVP_PBE_cleanup(void)
0f113f3e MC	301	{
	302	sk_EVP_PBE_CTL_pop_free(pbe_algs, free_evp_pbe_ctl);
	303	pbe_algs = NULL;
	304	}