[thirdparty/openssl.git] / crypto / evp / 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 "internal/cryptlib.h"
#include <openssl/evp.h>
#include <openssl/pkcs12.h>
#include <openssl/x509.h>
#include "evp_locl.h"

/* Password based encryption (PBE) functions */

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

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

static STACK_OF(EVP_PBE_CTL) *pbe_algs;

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_id_pbkdf2, -1, -1, PKCS5_v2_PBKDF2_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},

    {EVP_PBE_TYPE_OUTER, NID_pbes2, -1, -1, PKCS5_v2_PBE_keyivgen},

    {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},
    {EVP_PBE_TYPE_PRF, NID_id_tc26_hmac_gost_3411_2012_256, -1,
     NID_id_GostR3411_2012_256, 0},
    {EVP_PBE_TYPE_PRF, NID_id_tc26_hmac_gost_3411_2012_512, -1,
     NID_id_GostR3411_2012_512, 0},
    {EVP_PBE_TYPE_KDF, NID_id_pbkdf2, -1, -1, PKCS5_v2_PBKDF2_keyivgen},
#ifndef OPENSSL_NO_SCRYPT
    {EVP_PBE_TYPE_KDF, NID_id_scrypt, -1, -1, PKCS5_v2_scrypt_keyivgen}
#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)
            OPENSSL_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 == NULL) {
        pbe_algs = sk_EVP_PBE_CTL_new(pbe_cmp);
        if (pbe_algs == NULL)
            goto err;
    }

    if ((pbe_tmp = OPENSSL_malloc(sizeof(*pbe_tmp))) == NULL)
        goto err;

    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;

 err:
    EVPerr(EVP_F_EVP_PBE_ALG_ADD_TYPE, ERR_R_MALLOC_FAILURE);
    return 0;
}

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, OSSL_NELEM(builtin_pbe));
    }
    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_free(pbe);
}

void EVP_PBE_cleanup(void)
{
    sk_EVP_PBE_CTL_pop_free(pbe_algs, free_evp_pbe_ctl);
    pbe_algs = NULL;
}

int EVP_PBE_get(int *ptype, int *ppbe_nid, size_t num)
{
    const EVP_PBE_CTL *tpbe;

    if (num >= OSSL_NELEM(builtin_pbe))
        return 0;

    tpbe = builtin_pbe + num;
    if (ptype)
        *ptype = tpbe->pbe_type;
    if (ppbe_nid)
        *ppbe_nid = tpbe->pbe_nid;
    return 1;
}
Commit	Line	Data
0f113f3e MC	1	/*
	2	* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
	3	* 1999.
cfcefcbe DSH	4	*/
cfcefcbe DSH	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
0f113f3e	13	* notice, this list of conditions and the following disclaimer.
cfcefcbe DSH	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>
b39fc560	60	#include "internal/cryptlib.h"
ec577822	61	#include <openssl/evp.h>
b8f702a0	62	#include <openssl/pkcs12.h>
ec577822	63	#include <openssl/x509.h>
3d63b396	64	#include "evp_locl.h"
cfcefcbe DSH	65
	66	/* Password based encryption (PBE) functions */
	67
cfcefcbe DSH	68	/* Setup a cipher context from a PBE algorithm */
cfcefcbe DSH	69
4a1f3f27	70	struct evp_pbe_st {
0f113f3e MC	71	int pbe_type;
	72	int pbe_nid;
	73	int cipher_nid;
	74	int md_nid;
	75	EVP_PBE_KEYGEN *keygen;
4a1f3f27	76	};
0f113f3e	77
4a640fb6 DSH	78	static STACK_OF(EVP_PBE_CTL) *pbe_algs;
4a640fb6 DSH	79
0f113f3e MC	80	static const EVP_PBE_CTL builtin_pbe[] = {
	81	{EVP_PBE_TYPE_OUTER, NID_pbeWithMD2AndDES_CBC,
	82	NID_des_cbc, NID_md2, PKCS5_PBE_keyivgen},
	83	{EVP_PBE_TYPE_OUTER, NID_pbeWithMD5AndDES_CBC,
	84	NID_des_cbc, NID_md5, PKCS5_PBE_keyivgen},
	85	{EVP_PBE_TYPE_OUTER, NID_pbeWithSHA1AndRC2_CBC,
	86	NID_rc2_64_cbc, NID_sha1, PKCS5_PBE_keyivgen},
b8f702a0	87
0f113f3e	88	{EVP_PBE_TYPE_OUTER, NID_id_pbkdf2, -1, -1, PKCS5_v2_PBKDF2_keyivgen},
3d63b396	89
0f113f3e MC	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},
b8f702a0	102
0f113f3e	103	{EVP_PBE_TYPE_OUTER, NID_pbes2, -1, -1, PKCS5_v2_PBE_keyivgen},
a283d2a8	104
0f113f3e MC	105	{EVP_PBE_TYPE_OUTER, NID_pbeWithMD2AndRC2_CBC,
	106	NID_rc2_64_cbc, NID_md2, PKCS5_PBE_keyivgen},
	107	{EVP_PBE_TYPE_OUTER, NID_pbeWithMD5AndRC2_CBC,
	108	NID_rc2_64_cbc, NID_md5, PKCS5_PBE_keyivgen},
	109	{EVP_PBE_TYPE_OUTER, NID_pbeWithSHA1AndDES_CBC,
	110	NID_des_cbc, NID_sha1, PKCS5_PBE_keyivgen},
	111
	112	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA1, -1, NID_sha1, 0},
	113	{EVP_PBE_TYPE_PRF, NID_hmacWithMD5, -1, NID_md5, 0},
	114	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA224, -1, NID_sha224, 0},
	115	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA256, -1, NID_sha256, 0},
	116	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA384, -1, NID_sha384, 0},
	117	{EVP_PBE_TYPE_PRF, NID_hmacWithSHA512, -1, NID_sha512, 0},
	118	{EVP_PBE_TYPE_PRF, NID_id_HMACGostR3411_94, -1, NID_id_GostR3411_94, 0},
eeb1c397 MC	119	{EVP_PBE_TYPE_PRF, NID_id_tc26_hmac_gost_3411_2012_256, -1,
	120	NID_id_GostR3411_2012_256, 0},
	121	{EVP_PBE_TYPE_PRF, NID_id_tc26_hmac_gost_3411_2012_512, -1,
	122	NID_id_GostR3411_2012_512, 0},
e98aa30d	123	{EVP_PBE_TYPE_KDF, NID_id_pbkdf2, -1, -1, PKCS5_v2_PBKDF2_keyivgen},
b0809bc8	124	#ifndef OPENSSL_NO_SCRYPT
e98aa30d	125	{EVP_PBE_TYPE_KDF, NID_id_scrypt, -1, -1, PKCS5_v2_scrypt_keyivgen}
b0809bc8	126	#endif
0f113f3e	127	};
b8f702a0	128
8afca8d9	129	int EVP_PBE_CipherInit(ASN1_OBJECT pbe_obj, const char pass, int passlen,
0f113f3e MC	130	ASN1_TYPE param, EVP_CIPHER_CTX ctx, int en_de)
	131	{
	132	const EVP_CIPHER *cipher;
	133	const EVP_MD *md;
	134	int cipher_nid, md_nid;
	135	EVP_PBE_KEYGEN *keygen;
	136
	137	if (!EVP_PBE_find(EVP_PBE_TYPE_OUTER, OBJ_obj2nid(pbe_obj),
	138	&cipher_nid, &md_nid, &keygen)) {
	139	char obj_tmp[80];
	140	EVPerr(EVP_F_EVP_PBE_CIPHERINIT, EVP_R_UNKNOWN_PBE_ALGORITHM);
	141	if (!pbe_obj)
7644a9ae	142	OPENSSL_strlcpy(obj_tmp, "NULL", sizeof obj_tmp);
0f113f3e MC	143	else
	144	i2t_ASN1_OBJECT(obj_tmp, sizeof obj_tmp, pbe_obj);
	145	ERR_add_error_data(2, "TYPE=", obj_tmp);
	146	return 0;
	147	}
	148
	149	if (!pass)
	150	passlen = 0;
	151	else if (passlen == -1)
	152	passlen = strlen(pass);
	153
	154	if (cipher_nid == -1)
	155	cipher = NULL;
	156	else {
	157	cipher = EVP_get_cipherbynid(cipher_nid);
	158	if (!cipher) {
	159	EVPerr(EVP_F_EVP_PBE_CIPHERINIT, EVP_R_UNKNOWN_CIPHER);
	160	return 0;
	161	}
	162	}
	163
	164	if (md_nid == -1)
	165	md = NULL;
	166	else {
	167	md = EVP_get_digestbynid(md_nid);
	168	if (!md) {
	169	EVPerr(EVP_F_EVP_PBE_CIPHERINIT, EVP_R_UNKNOWN_DIGEST);
	170	return 0;
	171	}
	172	}
	173
	174	if (!keygen(ctx, pass, passlen, param, cipher, md, en_de)) {
	175	EVPerr(EVP_F_EVP_PBE_CIPHERINIT, EVP_R_KEYGEN_FAILURE);
	176	return 0;
	177	}
	178	return 1;
cfcefcbe DSH	179	}
cfcefcbe DSH	180
e19106f5	181	DECLARE_OBJ_BSEARCH_CMP_FN(EVP_PBE_CTL, EVP_PBE_CTL, pbe2);
babb3798	182
e19106f5	183	static int pbe2_cmp(const EVP_PBE_CTL pbe1, const EVP_PBE_CTL pbe2)
0f113f3e MC	184	{
	185	int ret = pbe1->pbe_type - pbe2->pbe_type;
	186	if (ret)
	187	return ret;
	188	else
	189	return pbe1->pbe_nid - pbe2->pbe_nid;
	190	}
b8f702a0	191
e19106f5	192	IMPLEMENT_OBJ_BSEARCH_CMP_FN(EVP_PBE_CTL, EVP_PBE_CTL, pbe2);
babb3798	193
0f113f3e MC	194	static int pbe_cmp(const EVP_PBE_CTL const a, const EVP_PBE_CTL const b)
	195	{
	196	int ret = (a)->pbe_type - (b)->pbe_type;
	197	if (ret)
	198	return ret;
	199	else
	200	return (a)->pbe_nid - (b)->pbe_nid;
	201	}
cfcefcbe DSH	202
	203	/* Add a PBE algorithm */
	204
0f113f3e MC	205	int EVP_PBE_alg_add_type(int pbe_type, int pbe_nid, int cipher_nid,
	206	int md_nid, EVP_PBE_KEYGEN *keygen)
	207	{
	208	EVP_PBE_CTL *pbe_tmp;
b4faea50	209
8cf9d71a	210	if (pbe_algs == NULL) {
0f113f3e	211	pbe_algs = sk_EVP_PBE_CTL_new(pbe_cmp);
8cf9d71a AG	212	if (pbe_algs == NULL)
8cf9d71a AG	213	goto err;
0f113f3e	214	}
8cf9d71a AG	215
	216	if ((pbe_tmp = OPENSSL_malloc(sizeof(*pbe_tmp))) == NULL)
	217	goto err;
	218
0f113f3e MC	219	pbe_tmp->pbe_type = pbe_type;
	220	pbe_tmp->pbe_nid = pbe_nid;
	221	pbe_tmp->cipher_nid = cipher_nid;
	222	pbe_tmp->md_nid = md_nid;
	223	pbe_tmp->keygen = keygen;
	224
	225	sk_EVP_PBE_CTL_push(pbe_algs, pbe_tmp);
	226	return 1;
8cf9d71a AG	227
	228	err:
	229	EVPerr(EVP_F_EVP_PBE_ALG_ADD_TYPE, ERR_R_MALLOC_FAILURE);
	230	return 0;
0f113f3e	231	}
856640b5 DSH	232
856640b5 DSH	233	int EVP_PBE_alg_add(int nid, const EVP_CIPHER cipher, const EVP_MD md,
0f113f3e MC	234	EVP_PBE_KEYGEN *keygen)
	235	{
	236	int cipher_nid, md_nid;
75ebbd9a	237
0f113f3e MC	238	if (cipher)
	239	cipher_nid = EVP_CIPHER_nid(cipher);
	240	else
	241	cipher_nid = -1;
	242	if (md)
	243	md_nid = EVP_MD_type(md);
	244	else
	245	md_nid = -1;
	246
	247	return EVP_PBE_alg_add_type(EVP_PBE_TYPE_OUTER, nid,
	248	cipher_nid, md_nid, keygen);
	249	}
856640b5 DSH	250
856640b5 DSH	251	int EVP_PBE_find(int type, int pbe_nid,
0f113f3e MC	252	int pcnid, int pmnid, EVP_PBE_KEYGEN **pkeygen)
	253	{
	254	EVP_PBE_CTL *pbetmp = NULL, pbelu;
	255	int i;
	256	if (pbe_nid == NID_undef)
	257	return 0;
	258
	259	pbelu.pbe_type = type;
	260	pbelu.pbe_nid = pbe_nid;
	261
	262	if (pbe_algs) {
	263	i = sk_EVP_PBE_CTL_find(pbe_algs, &pbelu);
	264	if (i != -1)
	265	pbetmp = sk_EVP_PBE_CTL_value(pbe_algs, i);
	266	}
	267	if (pbetmp == NULL) {
b6eb9827	268	pbetmp = OBJ_bsearch_pbe2(&pbelu, builtin_pbe, OSSL_NELEM(builtin_pbe));
0f113f3e MC	269	}
	270	if (pbetmp == NULL)
	271	return 0;
	272	if (pcnid)
	273	*pcnid = pbetmp->cipher_nid;
	274	if (pmnid)
	275	*pmnid = pbetmp->md_nid;
	276	if (pkeygen)
	277	*pkeygen = pbetmp->keygen;
	278	return 1;
	279	}
856640b5	280
5ce278a7	281	static void free_evp_pbe_ctl(EVP_PBE_CTL *pbe)
0f113f3e	282	{
4b45c6e5	283	OPENSSL_free(pbe);
0f113f3e	284	}
ee0508d4	285
6b691a5c	286	void EVP_PBE_cleanup(void)
0f113f3e MC	287	{
	288	sk_EVP_PBE_CTL_pop_free(pbe_algs, free_evp_pbe_ctl);
	289	pbe_algs = NULL;
	290	}
d9546693 DSH	291
	292	int EVP_PBE_get(int ptype, int ppbe_nid, size_t num)
	293	{
	294	const EVP_PBE_CTL *tpbe;
	295
	296	if (num >= OSSL_NELEM(builtin_pbe))
	297	return 0;
	298
	299	tpbe = builtin_pbe + num;
	300	if (ptype)
	301	*ptype = tpbe->pbe_type;
	302	if (ppbe_nid)
	303	*ppbe_nid = tpbe->pbe_nid;
	304	return 1;
	305	}