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

Source (jump to first uncovered line)
/*
 * Copyright 1999-2023 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},

    {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)
{
    const EVP_CIPHER *cipher = NULL;
    EVP_CIPHER *cipher_fetch = NULL;
    const EVP_MD *md = NULL;
    EVP_MD *md_fetch = 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 = strlen(pass);

    if (cipher_nid != -1) {
        (void)ERR_set_mark();
        cipher = cipher_fetch = EVP_CIPHER_fetch(libctx, OBJ_nid2sn(cipher_nid), propq);
        /* Fallback to legacy method */
        if (cipher == NULL)
            cipher = EVP_get_cipherbynid(cipher_nid);
        if (cipher == NULL) {
            (void)ERR_clear_last_mark();
            ERR_raise_data(ERR_LIB_EVP, EVP_R_UNKNOWN_CIPHER,
                           OBJ_nid2sn(cipher_nid));
            goto err;
        }
        (void)ERR_pop_to_mark();
    }

    if (md_nid != -1) {
        (void)ERR_set_mark();
        md = md_fetch = EVP_MD_fetch(libctx, OBJ_nid2sn(md_nid), propq);
        /* Fallback to legacy method */
        if (md == NULL)
            md = EVP_get_digestbynid(md_nid);

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

    /* 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_fetch);
    EVP_MD_free(md_fetch);

    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: 2024-02-25 06:25

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright 1999-2023 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
45		{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And128BitRC4,
46		NID_rc4, NID_sha1, PKCS12_PBE_keyivgen, &PKCS12_PBE_keyivgen_ex},
47		{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And40BitRC4,
48		NID_rc4_40, NID_sha1, PKCS12_PBE_keyivgen, &PKCS12_PBE_keyivgen_ex},
49		{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And3_Key_TripleDES_CBC,
50		NID_des_ede3_cbc, NID_sha1, PKCS12_PBE_keyivgen, &PKCS12_PBE_keyivgen_ex},
51		{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And2_Key_TripleDES_CBC,
52		NID_des_ede_cbc, NID_sha1, PKCS12_PBE_keyivgen, &PKCS12_PBE_keyivgen_ex},
53		{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And128BitRC2_CBC,
54		NID_rc2_cbc, NID_sha1, PKCS12_PBE_keyivgen, &PKCS12_PBE_keyivgen_ex},
55		{EVP_PBE_TYPE_OUTER, NID_pbe_WithSHA1And40BitRC2_CBC,
56		NID_rc2_40_cbc, NID_sha1, PKCS12_PBE_keyivgen, &PKCS12_PBE_keyivgen_ex},
57
58		{EVP_PBE_TYPE_OUTER, NID_pbes2, -1, -1, PKCS5_v2_PBE_keyivgen, &PKCS5_v2_PBE_keyivgen_ex},
59
60		{EVP_PBE_TYPE_OUTER, NID_pbeWithMD2AndRC2_CBC,
61		NID_rc2_64_cbc, NID_md2, PKCS5_PBE_keyivgen, PKCS5_PBE_keyivgen_ex},
62		{EVP_PBE_TYPE_OUTER, NID_pbeWithMD5AndRC2_CBC,
63		NID_rc2_64_cbc, NID_md5, PKCS5_PBE_keyivgen, PKCS5_PBE_keyivgen_ex},
64		{EVP_PBE_TYPE_OUTER, NID_pbeWithSHA1AndDES_CBC,
65		NID_des_cbc, NID_sha1, PKCS5_PBE_keyivgen, PKCS5_PBE_keyivgen_ex},
66
67		{EVP_PBE_TYPE_PRF, NID_hmacWithSHA1, -1, NID_sha1, 0},
68		{EVP_PBE_TYPE_PRF, NID_hmac_md5, -1, NID_md5, 0},
69		{EVP_PBE_TYPE_PRF, NID_hmac_sha1, -1, NID_sha1, 0},
70		{EVP_PBE_TYPE_PRF, NID_hmacWithMD5, -1, NID_md5, 0},
71		{EVP_PBE_TYPE_PRF, NID_hmacWithSHA224, -1, NID_sha224, 0},
72		{EVP_PBE_TYPE_PRF, NID_hmacWithSHA256, -1, NID_sha256, 0},
73		{EVP_PBE_TYPE_PRF, NID_hmacWithSHA384, -1, NID_sha384, 0},
74		{EVP_PBE_TYPE_PRF, NID_hmacWithSHA512, -1, NID_sha512, 0},
75		{EVP_PBE_TYPE_PRF, NID_id_HMACGostR3411_94, -1, NID_id_GostR3411_94, 0},
76		{EVP_PBE_TYPE_PRF, NID_id_tc26_hmac_gost_3411_2012_256, -1,
77		NID_id_GostR3411_2012_256, 0},
78		{EVP_PBE_TYPE_PRF, NID_id_tc26_hmac_gost_3411_2012_512, -1,
79		NID_id_GostR3411_2012_512, 0},
80		{EVP_PBE_TYPE_PRF, NID_hmac_sha3_224, -1, NID_sha3_224, 0},
81		{EVP_PBE_TYPE_PRF, NID_hmac_sha3_256, -1, NID_sha3_256, 0},
82		{EVP_PBE_TYPE_PRF, NID_hmac_sha3_384, -1, NID_sha3_384, 0},
83		{EVP_PBE_TYPE_PRF, NID_hmac_sha3_512, -1, NID_sha3_512, 0},
84		{EVP_PBE_TYPE_PRF, NID_hmacWithSHA512_224, -1, NID_sha512_224, 0},
85		{EVP_PBE_TYPE_PRF, NID_hmacWithSHA512_256, -1, NID_sha512_256, 0},
86		#ifndef OPENSSL_NO_SM3
87		{EVP_PBE_TYPE_PRF, NID_hmacWithSM3, -1, NID_sm3, 0},
88		#endif
89		{EVP_PBE_TYPE_KDF, NID_id_pbkdf2, -1, -1, PKCS5_v2_PBKDF2_keyivgen, &PKCS5_v2_PBKDF2_keyivgen_ex},
90		#ifndef OPENSSL_NO_SCRYPT
91		{EVP_PBE_TYPE_KDF, NID_id_scrypt, -1, -1, PKCS5_v2_scrypt_keyivgen, &PKCS5_v2_scrypt_keyivgen_ex}
92		#endif
93		};
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	const EVP_CIPHER *cipher = NULL;
101	0	EVP_CIPHER *cipher_fetch = NULL;
102	0	const EVP_MD *md = NULL;
103	0	EVP_MD *md_fetch = NULL;
104	0	int ret = 0, cipher_nid, md_nid;
105	0	EVP_PBE_KEYGEN_EX *keygen_ex;
106	0	EVP_PBE_KEYGEN *keygen;
107
108	0	if (!EVP_PBE_find_ex(EVP_PBE_TYPE_OUTER, OBJ_obj2nid(pbe_obj),
109	0	&cipher_nid, &md_nid, &keygen, &keygen_ex)) {
110	0	char obj_tmp[80];
111
112	0	if (pbe_obj == NULL)
113	0	OPENSSL_strlcpy(obj_tmp, "NULL", sizeof(obj_tmp));
114	0	else
115	0	i2t_ASN1_OBJECT(obj_tmp, sizeof(obj_tmp), pbe_obj);
116	0	ERR_raise_data(ERR_LIB_EVP, EVP_R_UNKNOWN_PBE_ALGORITHM,
117	0	"TYPE=%s", obj_tmp);
118	0	goto err;
119	0	}
120
121	0	if (pass == NULL)
122	0	passlen = 0;
123	0	else if (passlen == -1)
124	0	passlen = strlen(pass);
125
126	0	if (cipher_nid != -1) {
127	0	(void)ERR_set_mark();
128	0	cipher = cipher_fetch = EVP_CIPHER_fetch(libctx, OBJ_nid2sn(cipher_nid), propq);
129		/* Fallback to legacy method */
130	0	if (cipher == NULL)
131	0	cipher = EVP_get_cipherbynid(cipher_nid);
132	0	if (cipher == NULL) {
133	0	(void)ERR_clear_last_mark();
134	0	ERR_raise_data(ERR_LIB_EVP, EVP_R_UNKNOWN_CIPHER,
135	0	OBJ_nid2sn(cipher_nid));
136	0	goto err;
137	0	}
138	0	(void)ERR_pop_to_mark();
139	0	}
140
141	0	if (md_nid != -1) {
142	0	(void)ERR_set_mark();
143	0	md = md_fetch = EVP_MD_fetch(libctx, OBJ_nid2sn(md_nid), propq);
144		/* Fallback to legacy method */
145	0	if (md == NULL)
146	0	md = EVP_get_digestbynid(md_nid);
147
148	0	if (md == NULL) {
149	0	(void)ERR_clear_last_mark();
150	0	ERR_raise(ERR_LIB_EVP, EVP_R_UNKNOWN_DIGEST);
151	0	goto err;
152	0	}
153	0	(void)ERR_pop_to_mark();
154	0	}
155
156		/* Try extended keygen with libctx/propq first, fall back to legacy keygen */
157	0	if (keygen_ex != NULL)
158	0	ret = keygen_ex(ctx, pass, passlen, param, cipher, md, en_de, libctx, propq);
159	0	else
160	0	ret = keygen(ctx, pass, passlen, param, cipher, md, en_de);
161
162	0	err:
163	0	EVP_CIPHER_free(cipher_fetch);
164	0	EVP_MD_free(md_fetch);
165
166	0	return ret;
167	0	}
168
169		int EVP_PBE_CipherInit(ASN1_OBJECT pbe_obj, const char pass, int passlen,
170		ASN1_TYPE param, EVP_CIPHER_CTX ctx, int en_de)
171	0	{
172	0	return EVP_PBE_CipherInit_ex(pbe_obj, pass, passlen, param, ctx, en_de, NULL, NULL);
173	0	}
174
175		DECLARE_OBJ_BSEARCH_CMP_FN(EVP_PBE_CTL, EVP_PBE_CTL, pbe2);
176
177		static int pbe2_cmp(const EVP_PBE_CTL pbe1, const EVP_PBE_CTL pbe2)
178	0	{
179	0	int ret = pbe1->pbe_type - pbe2->pbe_type;
180	0	if (ret)
181	0	return ret;
182	0	else
183	0	return pbe1->pbe_nid - pbe2->pbe_nid;
184	0	}
185
186		IMPLEMENT_OBJ_BSEARCH_CMP_FN(EVP_PBE_CTL, EVP_PBE_CTL, pbe2);
187
188		static int pbe_cmp(const EVP_PBE_CTL const a, const EVP_PBE_CTL const b)
189	0	{
190	0	int ret = (a)->pbe_type - (b)->pbe_type;
191	0	if (ret)
192	0	return ret;
193	0	else
194	0	return (a)->pbe_nid - (b)->pbe_nid;
195	0	}
196
197		/* Add a PBE algorithm */
198
199		int EVP_PBE_alg_add_type(int pbe_type, int pbe_nid, int cipher_nid,
200		int md_nid, EVP_PBE_KEYGEN *keygen)
201	0	{
202	0	EVP_PBE_CTL *pbe_tmp = NULL;
203
204	0	if (pbe_algs == NULL) {
205	0	pbe_algs = sk_EVP_PBE_CTL_new(pbe_cmp);
206	0	if (pbe_algs == NULL) {
207	0	ERR_raise(ERR_LIB_EVP, ERR_R_CRYPTO_LIB);
208	0	goto err;
209	0	}
210	0	}
211
212	0	if ((pbe_tmp = OPENSSL_zalloc(sizeof(*pbe_tmp))) == NULL)
213	0	goto err;
214
215	0	pbe_tmp->pbe_type = pbe_type;
216	0	pbe_tmp->pbe_nid = pbe_nid;
217	0	pbe_tmp->cipher_nid = cipher_nid;
218	0	pbe_tmp->md_nid = md_nid;
219	0	pbe_tmp->keygen = keygen;
220
221	0	if (!sk_EVP_PBE_CTL_push(pbe_algs, pbe_tmp)) {
222	0	ERR_raise(ERR_LIB_EVP, ERR_R_CRYPTO_LIB);
223	0	goto err;
224	0	}
225	0	return 1;
226
227	0	err:
228	0	OPENSSL_free(pbe_tmp);
229	0	return 0;
230	0	}
231
232		int EVP_PBE_alg_add(int nid, const EVP_CIPHER cipher, const EVP_MD md,
233		EVP_PBE_KEYGEN *keygen)
234	0	{
235	0	int cipher_nid, md_nid;
236
237	0	if (cipher)
238	0	cipher_nid = EVP_CIPHER_get_nid(cipher);
239	0	else
240	0	cipher_nid = -1;
241	0	if (md)
242	0	md_nid = EVP_MD_get_type(md);
243	0	else
244	0	md_nid = -1;
245
246	0	return EVP_PBE_alg_add_type(EVP_PBE_TYPE_OUTER, nid,
247	0	cipher_nid, md_nid, keygen);
248	0	}
249
250		int EVP_PBE_find_ex(int type, int pbe_nid, int pcnid, int pmnid,
251		EVP_PBE_KEYGEN pkeygen, EVP_PBE_KEYGEN_EX pkeygen_ex)
252	0	{
253	0	EVP_PBE_CTL *pbetmp = NULL, pbelu;
254	0	int i;
255	0	if (pbe_nid == NID_undef)
256	0	return 0;
257
258	0	pbelu.pbe_type = type;
259	0	pbelu.pbe_nid = pbe_nid;
260
261	0	if (pbe_algs != NULL) {
262		/* Ideally, this would be done under lock */
263	0	sk_EVP_PBE_CTL_sort(pbe_algs);
264	0	i = sk_EVP_PBE_CTL_find(pbe_algs, &pbelu);
265	0	pbetmp = sk_EVP_PBE_CTL_value(pbe_algs, i);
266	0	}
267	0	if (pbetmp == NULL) {
268	0	pbetmp = OBJ_bsearch_pbe2(&pbelu, builtin_pbe, OSSL_NELEM(builtin_pbe));
269	0	}
270	0	if (pbetmp == NULL)
271	0	return 0;
272	0	if (pcnid != NULL)
273	0	*pcnid = pbetmp->cipher_nid;
274	0	if (pmnid != NULL)
275	0	*pmnid = pbetmp->md_nid;
276	0	if (pkeygen != NULL)
277	0	*pkeygen = pbetmp->keygen;
278	0	if (pkeygen_ex != NULL)
279	0	*pkeygen_ex = pbetmp->keygen_ex;
280	0	return 1;
281	0	}
282
283		int EVP_PBE_find(int type, int pbe_nid,
284		int pcnid, int pmnid, EVP_PBE_KEYGEN **pkeygen)
285	0	{
286	0	return EVP_PBE_find_ex(type, pbe_nid, pcnid, pmnid, pkeygen, NULL);
287	0	}
288
289		static void free_evp_pbe_ctl(EVP_PBE_CTL *pbe)
290	0	{
291	0	OPENSSL_free(pbe);
292	0	}
293
294		void EVP_PBE_cleanup(void)
295	16	{
296	16	sk_EVP_PBE_CTL_pop_free(pbe_algs, free_evp_pbe_ctl);
297	16	pbe_algs = NULL;
298	16	}
299
300		int EVP_PBE_get(int ptype, int ppbe_nid, size_t num)
301	0	{
302	0	const EVP_PBE_CTL *tpbe;
303
304	0	if (num >= OSSL_NELEM(builtin_pbe))
305	0	return 0;
306
307	0	tpbe = builtin_pbe + num;
308	0	if (ptype)
309	0	*ptype = tpbe->pbe_type;
310	0	if (ppbe_nid)
311	0	*ppbe_nid = tpbe->pbe_nid;
312	0	return 1;
313	0	}