2 * crypto backend implementation
4 * Copyright (C) 2010-2020 Red Hat, Inc. All rights reserved.
5 * Copyright (C) 2010-2020 Milan Broz
7 * This file is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This file is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this file; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21 #ifndef _CRYPTO_BACKEND_INTERNAL_H
22 #define _CRYPTO_BACKEND_INTERNAL_H
24 #include "crypto_backend.h"
26 #if USE_INTERNAL_PBKDF2
27 /* internal PBKDF2 implementation */
28 int pkcs5_pbkdf2(const char *hash,
29 const char *P, size_t Plen,
30 const char *S, size_t Slen,
32 unsigned int dkLen, char *DK,
33 unsigned int hash_block_size);
36 /* Argon2 implementation wrapper */
37 int argon2(const char *type, const char *password, size_t password_length,
38 const char *salt, size_t salt_length,
39 char *key, size_t key_length,
40 uint32_t iterations, uint32_t memory, uint32_t parallel);
42 /* Block ciphers: fallback to kernel crypto API */
44 struct crypt_cipher_kernel {
49 int crypt_cipher_init_kernel(struct crypt_cipher_kernel *ctx, const char *name,
50 const char *mode, const void *key, size_t key_length);
51 int crypt_cipher_encrypt_kernel(struct crypt_cipher_kernel *ctx,
52 const char *in, char *out, size_t length,
53 const char *iv, size_t iv_length);
54 int crypt_cipher_decrypt_kernel(struct crypt_cipher_kernel *ctx,
55 const char *in, char *out, size_t length,
56 const char *iv, size_t iv_length);
57 void crypt_cipher_destroy_kernel(struct crypt_cipher_kernel *ctx);
58 int crypt_bitlk_decrypt_key_kernel(const void *key, size_t key_length,
59 const char *in, char *out, size_t length,
60 const char *iv, size_t iv_length,
61 const char *tag, size_t tag_length);
63 #endif /* _CRYPTO_BACKEND_INTERNAL_H */