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/*
* Copyright 1999-2021 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;
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