/src/openssl/crypto/evp/evp_pbe.c

Source
/*
 * Copyright 1999-2025 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/evp.h>
#include <openssl/core.h>
#include <openssl/core_names.h>
#include <openssl/pkcs12.h>
#include <openssl/x509.h>
#include "crypto/evp.h"
#include "evp_local.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;
    EVP_PBE_KEYGEN_EX *keygen_ex;
};

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, PKCS5_PBE_keyivgen_ex },
    { EVP_PBE_TYPE_OUTER, NID_pbeWithMD5AndDES_CBC,
        NID_des_cbc, NID_md5, PKCS5_PBE_keyivgen, PKCS5_PBE_keyivgen_ex },
    { EVP_PBE_TYPE_OUTER, NID_pbeWithSHA1AndRC2_CBC,
        NID_rc2_64_cbc, NID_sha1, PKCS5_PBE_keyivgen, PKCS5_PBE_keyivgen_ex },

    { EVP_PBE_TYPE_OUTER, NID_id_pbkdf2, -1, -1, PKCS5_v2_PBKDF2_keyivgen,
        PKCS5_v2_PBKDF2_keyivgen_ex },

    { EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And128BitRC4,
        NID_rc4, NID_sha1, PKCS12_PBE_keyivgen, &PKCS12_PBE_keyivgen_ex },
    { EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And40BitRC4,
        NID_rc4_40, NID_sha1, PKCS12_PBE_keyivgen, &PKCS12_PBE_keyivgen_ex },
    { EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And3_Key_TripleDES_CBC,
        NID_des_ede3_cbc, NID_sha1, PKCS12_PBE_keyivgen, &PKCS12_PBE_keyivgen_ex },
    { EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And2_Key_TripleDES_CBC,
        NID_des_ede_cbc, NID_sha1, PKCS12_PBE_keyivgen, &PKCS12_PBE_keyivgen_ex },
    { EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And128BitRC2_CBC,
        NID_rc2_cbc, NID_sha1, PKCS12_PBE_keyivgen, &PKCS12_PBE_keyivgen_ex },
    { EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And40BitRC2_CBC,
        NID_rc2_40_cbc, NID_sha1, PKCS12_PBE_keyivgen, &PKCS12_PBE_keyivgen_ex },

    { EVP_PBE_TYPE_OUTER, NID_pbes2, -1, -1, PKCS5_v2_PBE_keyivgen, &PKCS5_v2_PBE_keyivgen_ex },

    { EVP_PBE_TYPE_OUTER, NID_pbeWithMD2AndRC2_CBC,
        NID_rc2_64_cbc, NID_md2, PKCS5_PBE_keyivgen, PKCS5_PBE_keyivgen_ex },
    { EVP_PBE_TYPE_OUTER, NID_pbeWithMD5AndRC2_CBC,
        NID_rc2_64_cbc, NID_md5, PKCS5_PBE_keyivgen, PKCS5_PBE_keyivgen_ex },
    { EVP_PBE_TYPE_OUTER, NID_pbeWithSHA1AndDES_CBC,
        NID_des_cbc, NID_sha1, PKCS5_PBE_keyivgen, PKCS5_PBE_keyivgen_ex },

    { EVP_PBE_TYPE_PRF, NID_hmacWithSHA1, -1, NID_sha1, 0 },
    { EVP_PBE_TYPE_PRF, NID_hmac_md5, -1, NID_md5, 0 },
    { EVP_PBE_TYPE_PRF, NID_hmac_sha1, -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_PRF, NID_hmac_sha3_224, -1, NID_sha3_224, 0 },
    { EVP_PBE_TYPE_PRF, NID_hmac_sha3_256, -1, NID_sha3_256, 0 },
    { EVP_PBE_TYPE_PRF, NID_hmac_sha3_384, -1, NID_sha3_384, 0 },
    { EVP_PBE_TYPE_PRF, NID_hmac_sha3_512, -1, NID_sha3_512, 0 },
    { EVP_PBE_TYPE_PRF, NID_hmacWithSHA512_224, -1, NID_sha512_224, 0 },
    { EVP_PBE_TYPE_PRF, NID_hmacWithSHA512_256, -1, NID_sha512_256, 0 },
#ifndef OPENSSL_NO_SM3
    { EVP_PBE_TYPE_PRF, NID_hmacWithSM3, -1, NID_sm3, 0 },
#endif
    { EVP_PBE_TYPE_KDF, NID_id_pbkdf2, -1, -1, PKCS5_v2_PBKDF2_keyivgen, &PKCS5_v2_PBKDF2_keyivgen_ex },
#ifndef OPENSSL_NO_SCRYPT
    { EVP_PBE_TYPE_KDF, NID_id_scrypt, -1, -1, PKCS5_v2_scrypt_keyivgen, &PKCS5_v2_scrypt_keyivgen_ex }
#endif
};

int EVP_PBE_CipherInit_ex(ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
    ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de,
    OSSL_LIB_CTX *libctx, const char *propq)
{
    EVP_CIPHER *cipher = NULL;
    EVP_MD *md = NULL;
    int ret = 0, cipher_nid, md_nid;
    EVP_PBE_KEYGEN_EX *keygen_ex;
    EVP_PBE_KEYGEN *keygen;

    if (!EVP_PBE_find_ex(EVP_PBE_TYPE_OUTER, OBJ_obj2nid(pbe_obj),
            &cipher_nid, &md_nid, &keygen, &keygen_ex)) {
        char obj_tmp[80];

        if (pbe_obj == NULL)
            OPENSSL_strlcpy(obj_tmp, "NULL", sizeof(obj_tmp));
        else
            i2t_ASN1_OBJECT(obj_tmp, sizeof(obj_tmp), pbe_obj);
        ERR_raise_data(ERR_LIB_EVP, EVP_R_UNKNOWN_PBE_ALGORITHM,
            "TYPE=%s", obj_tmp);
        goto err;
    }

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

    if (cipher_nid != -1) {
        cipher = EVP_CIPHER_fetch(libctx, OBJ_nid2sn(cipher_nid), propq);
        if (cipher == NULL) {
            ERR_raise_data(ERR_LIB_EVP, EVP_R_UNKNOWN_CIPHER,
                OBJ_nid2sn(cipher_nid));
            goto err;
        }
    }

    if (md_nid != -1) {
        md = EVP_MD_fetch(libctx, OBJ_nid2sn(md_nid), propq);

        if (md == NULL) {
            ERR_raise(ERR_LIB_EVP, EVP_R_UNKNOWN_DIGEST);
            goto err;
        }
    }

    /* Try extended keygen with libctx/propq first, fall back to legacy keygen */
    if (keygen_ex != NULL)
        ret = keygen_ex(ctx, pass, passlen, param, cipher, md, en_de, libctx, propq);
    else
        ret = keygen(ctx, pass, passlen, param, cipher, md, en_de);

err:
    EVP_CIPHER_free(cipher);
    EVP_MD_free(md);

    return ret;
}

int EVP_PBE_CipherInit(ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
    ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de)
{
    return EVP_PBE_CipherInit_ex(pbe_obj, pass, passlen, param, ctx, en_de, NULL, NULL);
}

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 = NULL;

    if (pbe_algs == NULL) {
        pbe_algs = sk_EVP_PBE_CTL_new(pbe_cmp);
        if (pbe_algs == NULL) {
            ERR_raise(ERR_LIB_EVP, ERR_R_CRYPTO_LIB);
            goto err;
        }
    }

    if ((pbe_tmp = OPENSSL_zalloc(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;

    if (!sk_EVP_PBE_CTL_push(pbe_algs, pbe_tmp)) {
        ERR_raise(ERR_LIB_EVP, ERR_R_CRYPTO_LIB);
        goto err;
    }
    return 1;

err:
    OPENSSL_free(pbe_tmp);
    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_get_nid(cipher);
    else
        cipher_nid = -1;
    if (md)
        md_nid = EVP_MD_get_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_ex(int type, int pbe_nid, int *pcnid, int *pmnid,
    EVP_PBE_KEYGEN **pkeygen, EVP_PBE_KEYGEN_EX **pkeygen_ex)
{
    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 != NULL) {
        /* Ideally, this would be done under lock */
        sk_EVP_PBE_CTL_sort(pbe_algs);
        i = sk_EVP_PBE_CTL_find(pbe_algs, &pbelu);
        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 != NULL)
        *pcnid = pbetmp->cipher_nid;
    if (pmnid != NULL)
        *pmnid = pbetmp->md_nid;
    if (pkeygen != NULL)
        *pkeygen = pbetmp->keygen;
    if (pkeygen_ex != NULL)
        *pkeygen_ex = pbetmp->keygen_ex;
    return 1;
}

int EVP_PBE_find(int type, int pbe_nid,
    int *pcnid, int *pmnid, EVP_PBE_KEYGEN **pkeygen)
{
    return EVP_PBE_find_ex(type, pbe_nid, pcnid, pmnid, pkeygen, NULL);
}

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;
}

Coverage Report

Created: 2026-02-22 06:11

Line	Count	Source
1		/*
2		* Copyright 1999-2025 The OpenSSL Project Authors. All Rights Reserved.
3		*
4		* Licensed under the Apache License 2.0 (the "License"). You may not use
5		* this file except in compliance with the License. You can obtain a copy
6		* in the file LICENSE in the source distribution or at
7		* https://www.openssl.org/source/license.html
8		*/
9
10		#include <stdio.h>
11		#include "internal/cryptlib.h"
12		#include <openssl/evp.h>
13		#include <openssl/core.h>
14		#include <openssl/core_names.h>
15		#include <openssl/pkcs12.h>
16		#include <openssl/x509.h>
17		#include "crypto/evp.h"
18		#include "evp_local.h"
19
20		/* Password based encryption (PBE) functions */
21
22		/* Setup a cipher context from a PBE algorithm */
23
24		struct evp_pbe_st {
25		int pbe_type;
26		int pbe_nid;
27		int cipher_nid;
28		int md_nid;
29		EVP_PBE_KEYGEN *keygen;
30		EVP_PBE_KEYGEN_EX *keygen_ex;
31		};
32
33		static STACK_OF(EVP_PBE_CTL) *pbe_algs;
34
35		static const EVP_PBE_CTL builtin_pbe[] = {
36		{ EVP_PBE_TYPE_OUTER, NID_pbeWithMD2AndDES_CBC,
37		NID_des_cbc, NID_md2, PKCS5_PBE_keyivgen, PKCS5_PBE_keyivgen_ex },
38		{ EVP_PBE_TYPE_OUTER, NID_pbeWithMD5AndDES_CBC,
39		NID_des_cbc, NID_md5, PKCS5_PBE_keyivgen, PKCS5_PBE_keyivgen_ex },
40		{ EVP_PBE_TYPE_OUTER, NID_pbeWithSHA1AndRC2_CBC,
41		NID_rc2_64_cbc, NID_sha1, PKCS5_PBE_keyivgen, PKCS5_PBE_keyivgen_ex },
42
43		{ EVP_PBE_TYPE_OUTER, NID_id_pbkdf2, -1, -1, PKCS5_v2_PBKDF2_keyivgen,
44		PKCS5_v2_PBKDF2_keyivgen_ex },
45
46		{ EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And128BitRC4,
47		NID_rc4, NID_sha1, PKCS12_PBE_keyivgen, &PKCS12_PBE_keyivgen_ex },
48		{ EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And40BitRC4,
49		NID_rc4_40, NID_sha1, PKCS12_PBE_keyivgen, &PKCS12_PBE_keyivgen_ex },
50		{ EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And3_Key_TripleDES_CBC,
51		NID_des_ede3_cbc, NID_sha1, PKCS12_PBE_keyivgen, &PKCS12_PBE_keyivgen_ex },
52		{ EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And2_Key_TripleDES_CBC,
53		NID_des_ede_cbc, NID_sha1, PKCS12_PBE_keyivgen, &PKCS12_PBE_keyivgen_ex },
54		{ EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And128BitRC2_CBC,
55		NID_rc2_cbc, NID_sha1, PKCS12_PBE_keyivgen, &PKCS12_PBE_keyivgen_ex },
56		{ EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And40BitRC2_CBC,
57		NID_rc2_40_cbc, NID_sha1, PKCS12_PBE_keyivgen, &PKCS12_PBE_keyivgen_ex },
58
59		{ EVP_PBE_TYPE_OUTER, NID_pbes2, -1, -1, PKCS5_v2_PBE_keyivgen, &PKCS5_v2_PBE_keyivgen_ex },
60
61		{ EVP_PBE_TYPE_OUTER, NID_pbeWithMD2AndRC2_CBC,
62		NID_rc2_64_cbc, NID_md2, PKCS5_PBE_keyivgen, PKCS5_PBE_keyivgen_ex },
63		{ EVP_PBE_TYPE_OUTER, NID_pbeWithMD5AndRC2_CBC,
64		NID_rc2_64_cbc, NID_md5, PKCS5_PBE_keyivgen, PKCS5_PBE_keyivgen_ex },
65		{ EVP_PBE_TYPE_OUTER, NID_pbeWithSHA1AndDES_CBC,
66		NID_des_cbc, NID_sha1, PKCS5_PBE_keyivgen, PKCS5_PBE_keyivgen_ex },
67
68		{ EVP_PBE_TYPE_PRF, NID_hmacWithSHA1, -1, NID_sha1, 0 },
69		{ EVP_PBE_TYPE_PRF, NID_hmac_md5, -1, NID_md5, 0 },
70		{ EVP_PBE_TYPE_PRF, NID_hmac_sha1, -1, NID_sha1, 0 },
71		{ EVP_PBE_TYPE_PRF, NID_hmacWithMD5, -1, NID_md5, 0 },
72		{ EVP_PBE_TYPE_PRF, NID_hmacWithSHA224, -1, NID_sha224, 0 },
73		{ EVP_PBE_TYPE_PRF, NID_hmacWithSHA256, -1, NID_sha256, 0 },
74		{ EVP_PBE_TYPE_PRF, NID_hmacWithSHA384, -1, NID_sha384, 0 },
75		{ EVP_PBE_TYPE_PRF, NID_hmacWithSHA512, -1, NID_sha512, 0 },
76		{ EVP_PBE_TYPE_PRF, NID_id_HMACGostR3411_94, -1, NID_id_GostR3411_94, 0 },
77		{ EVP_PBE_TYPE_PRF, NID_id_tc26_hmac_gost_3411_2012_256, -1,
78		NID_id_GostR3411_2012_256, 0 },
79		{ EVP_PBE_TYPE_PRF, NID_id_tc26_hmac_gost_3411_2012_512, -1,
80		NID_id_GostR3411_2012_512, 0 },
81		{ EVP_PBE_TYPE_PRF, NID_hmac_sha3_224, -1, NID_sha3_224, 0 },
82		{ EVP_PBE_TYPE_PRF, NID_hmac_sha3_256, -1, NID_sha3_256, 0 },
83		{ EVP_PBE_TYPE_PRF, NID_hmac_sha3_384, -1, NID_sha3_384, 0 },
84		{ EVP_PBE_TYPE_PRF, NID_hmac_sha3_512, -1, NID_sha3_512, 0 },
85		{ EVP_PBE_TYPE_PRF, NID_hmacWithSHA512_224, -1, NID_sha512_224, 0 },
86		{ EVP_PBE_TYPE_PRF, NID_hmacWithSHA512_256, -1, NID_sha512_256, 0 },
87		#ifndef OPENSSL_NO_SM3
88		{ EVP_PBE_TYPE_PRF, NID_hmacWithSM3, -1, NID_sm3, 0 },
89		#endif
90		{ EVP_PBE_TYPE_KDF, NID_id_pbkdf2, -1, -1, PKCS5_v2_PBKDF2_keyivgen, &PKCS5_v2_PBKDF2_keyivgen_ex },
91		#ifndef OPENSSL_NO_SCRYPT
92		{ EVP_PBE_TYPE_KDF, NID_id_scrypt, -1, -1, PKCS5_v2_scrypt_keyivgen, &PKCS5_v2_scrypt_keyivgen_ex }
93		#endif
94		};
95
96		int EVP_PBE_CipherInit_ex(ASN1_OBJECT pbe_obj, const char pass, int passlen,
97		ASN1_TYPE param, EVP_CIPHER_CTX ctx, int en_de,
98		OSSL_LIB_CTX libctx, const char propq)
99	0	{
100	0	EVP_CIPHER *cipher = NULL;
101	0	EVP_MD *md = NULL;
102	0	int ret = 0, cipher_nid, md_nid;
103	0	EVP_PBE_KEYGEN_EX *keygen_ex;
104	0	EVP_PBE_KEYGEN *keygen;
105
106	0	if (!EVP_PBE_find_ex(EVP_PBE_TYPE_OUTER, OBJ_obj2nid(pbe_obj),
107	0	&cipher_nid, &md_nid, &keygen, &keygen_ex)) {
108	0	char obj_tmp[80];
109
110	0	if (pbe_obj == NULL)
111	0	OPENSSL_strlcpy(obj_tmp, "NULL", sizeof(obj_tmp));
112	0	else
113	0	i2t_ASN1_OBJECT(obj_tmp, sizeof(obj_tmp), pbe_obj);
114	0	ERR_raise_data(ERR_LIB_EVP, EVP_R_UNKNOWN_PBE_ALGORITHM,
115	0	"TYPE=%s", obj_tmp);
116	0	goto err;
117	0	}
118
119	0	if (pass == NULL)
120	0	passlen = 0;
121	0	else if (passlen == -1)
122	0	passlen = (int)strlen(pass);
123
124	0	if (cipher_nid != -1) {
125	0	cipher = EVP_CIPHER_fetch(libctx, OBJ_nid2sn(cipher_nid), propq);
126	0	if (cipher == NULL) {
127	0	ERR_raise_data(ERR_LIB_EVP, EVP_R_UNKNOWN_CIPHER,
128	0	OBJ_nid2sn(cipher_nid));
129	0	goto err;
130	0	}
131	0	}
132
133	0	if (md_nid != -1) {
134	0	md = EVP_MD_fetch(libctx, OBJ_nid2sn(md_nid), propq);
135
136	0	if (md == NULL) {
137	0	ERR_raise(ERR_LIB_EVP, EVP_R_UNKNOWN_DIGEST);
138	0	goto err;
139	0	}
140	0	}
141
142		/* Try extended keygen with libctx/propq first, fall back to legacy keygen */
143	0	if (keygen_ex != NULL)
144	0	ret = keygen_ex(ctx, pass, passlen, param, cipher, md, en_de, libctx, propq);
145	0	else
146	0	ret = keygen(ctx, pass, passlen, param, cipher, md, en_de);
147
148	0	err:
149	0	EVP_CIPHER_free(cipher);
150	0	EVP_MD_free(md);
151
152	0	return ret;
153	0	}
154
155		int EVP_PBE_CipherInit(ASN1_OBJECT pbe_obj, const char pass, int passlen,
156		ASN1_TYPE param, EVP_CIPHER_CTX ctx, int en_de)
157	0	{
158	0	return EVP_PBE_CipherInit_ex(pbe_obj, pass, passlen, param, ctx, en_de, NULL, NULL);
159	0	}
160
161		DECLARE_OBJ_BSEARCH_CMP_FN(EVP_PBE_CTL, EVP_PBE_CTL, pbe2);
162
163		static int pbe2_cmp(const EVP_PBE_CTL pbe1, const EVP_PBE_CTL pbe2)
164	0	{
165	0	int ret = pbe1->pbe_type - pbe2->pbe_type;
166	0	if (ret)
167	0	return ret;
168	0	else
169	0	return pbe1->pbe_nid - pbe2->pbe_nid;
170	0	}
171
172		IMPLEMENT_OBJ_BSEARCH_CMP_FN(EVP_PBE_CTL, EVP_PBE_CTL, pbe2);
173
174		static int pbe_cmp(const EVP_PBE_CTL const a, const EVP_PBE_CTL const b)
175	0	{
176	0	int ret = (a)->pbe_type - (b)->pbe_type;
177	0	if (ret)
178	0	return ret;
179	0	else
180	0	return (a)->pbe_nid - (b)->pbe_nid;
181	0	}
182
183		/* Add a PBE algorithm */
184
185		int EVP_PBE_alg_add_type(int pbe_type, int pbe_nid, int cipher_nid,
186		int md_nid, EVP_PBE_KEYGEN *keygen)
187	0	{
188	0	EVP_PBE_CTL *pbe_tmp = NULL;
189
190	0	if (pbe_algs == NULL) {
191	0	pbe_algs = sk_EVP_PBE_CTL_new(pbe_cmp);
192	0	if (pbe_algs == NULL) {
193	0	ERR_raise(ERR_LIB_EVP, ERR_R_CRYPTO_LIB);
194	0	goto err;
195	0	}
196	0	}
197
198	0	if ((pbe_tmp = OPENSSL_zalloc(sizeof(*pbe_tmp))) == NULL)
199	0	goto err;
200
201	0	pbe_tmp->pbe_type = pbe_type;
202	0	pbe_tmp->pbe_nid = pbe_nid;
203	0	pbe_tmp->cipher_nid = cipher_nid;
204	0	pbe_tmp->md_nid = md_nid;
205	0	pbe_tmp->keygen = keygen;
206
207	0	if (!sk_EVP_PBE_CTL_push(pbe_algs, pbe_tmp)) {
208	0	ERR_raise(ERR_LIB_EVP, ERR_R_CRYPTO_LIB);
209	0	goto err;
210	0	}
211	0	return 1;
212
213	0	err:
214	0	OPENSSL_free(pbe_tmp);
215	0	return 0;
216	0	}
217
218		int EVP_PBE_alg_add(int nid, const EVP_CIPHER cipher, const EVP_MD md,
219		EVP_PBE_KEYGEN *keygen)
220	0	{
221	0	int cipher_nid, md_nid;
222
223	0	if (cipher)
224	0	cipher_nid = EVP_CIPHER_get_nid(cipher);
225	0	else
226	0	cipher_nid = -1;
227	0	if (md)
228	0	md_nid = EVP_MD_get_type(md);
229	0	else
230	0	md_nid = -1;
231
232	0	return EVP_PBE_alg_add_type(EVP_PBE_TYPE_OUTER, nid,
233	0	cipher_nid, md_nid, keygen);
234	0	}
235
236		int EVP_PBE_find_ex(int type, int pbe_nid, int pcnid, int pmnid,
237		EVP_PBE_KEYGEN pkeygen, EVP_PBE_KEYGEN_EX pkeygen_ex)
238	0	{
239	0	EVP_PBE_CTL *pbetmp = NULL, pbelu;
240	0	int i;
241	0	if (pbe_nid == NID_undef)
242	0	return 0;
243
244	0	pbelu.pbe_type = type;
245	0	pbelu.pbe_nid = pbe_nid;
246
247	0	if (pbe_algs != NULL) {
248		/* Ideally, this would be done under lock */
249	0	sk_EVP_PBE_CTL_sort(pbe_algs);
250	0	i = sk_EVP_PBE_CTL_find(pbe_algs, &pbelu);
251	0	pbetmp = sk_EVP_PBE_CTL_value(pbe_algs, i);
252	0	}
253	0	if (pbetmp == NULL) {
254	0	pbetmp = OBJ_bsearch_pbe2(&pbelu, builtin_pbe, OSSL_NELEM(builtin_pbe));
255	0	}
256	0	if (pbetmp == NULL)
257	0	return 0;
258	0	if (pcnid != NULL)
259	0	*pcnid = pbetmp->cipher_nid;
260	0	if (pmnid != NULL)
261	0	*pmnid = pbetmp->md_nid;
262	0	if (pkeygen != NULL)
263	0	*pkeygen = pbetmp->keygen;
264	0	if (pkeygen_ex != NULL)
265	0	*pkeygen_ex = pbetmp->keygen_ex;
266	0	return 1;
267	0	}
268
269		int EVP_PBE_find(int type, int pbe_nid,
270		int pcnid, int pmnid, EVP_PBE_KEYGEN **pkeygen)
271	0	{
272	0	return EVP_PBE_find_ex(type, pbe_nid, pcnid, pmnid, pkeygen, NULL);
273	0	}
274
275		static void free_evp_pbe_ctl(EVP_PBE_CTL *pbe)
276	0	{
277	0	OPENSSL_free(pbe);
278	0	}
279
280		void EVP_PBE_cleanup(void)
281	0	{
282	0	sk_EVP_PBE_CTL_pop_free(pbe_algs, free_evp_pbe_ctl);
283	0	pbe_algs = NULL;
284	0	}
285
286		int EVP_PBE_get(int ptype, int ppbe_nid, size_t num)
287	0	{
288	0	const EVP_PBE_CTL *tpbe;
289
290	0	if (num >= OSSL_NELEM(builtin_pbe))
291	0	return 0;
292
293	0	tpbe = builtin_pbe + num;
294	0	if (ptype)
295	0	*ptype = tpbe->pbe_type;
296	0	if (ppbe_nid)
297	0	*ppbe_nid = tpbe->pbe_nid;
298	0	return 1;
299	0	}