xref: /freebsd/contrib/wpa/src/crypto/aes_wrap.h (revision ae77177087c655fc883075af4f425b37e032cd05)
1 /*
2  * AES-based functions
3  *
4  * - AES Key Wrap Algorithm (128-bit KEK) (RFC3394)
5  * - One-Key CBC MAC (OMAC1) hash with AES-128
6  * - AES-128 CTR mode encryption
7  * - AES-128 EAX mode encryption/decryption
8  * - AES-128 CBC
9  *
10  * Copyright (c) 2003-2007, Jouni Malinen <j@w1.fi>
11  *
12  * This program is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU General Public License version 2 as
14  * published by the Free Software Foundation.
15  *
16  * Alternatively, this software may be distributed under the terms of BSD
17  * license.
18  *
19  * See README and COPYING for more details.
20  */
21 
22 #ifndef AES_WRAP_H
23 #define AES_WRAP_H
24 
25 int __must_check aes_wrap(const u8 *kek, int n, const u8 *plain, u8 *cipher);
26 int __must_check aes_unwrap(const u8 *kek, int n, const u8 *cipher, u8 *plain);
27 int __must_check omac1_aes_128_vector(const u8 *key, size_t num_elem,
28 				      const u8 *addr[], const size_t *len,
29 				      u8 *mac);
30 int __must_check omac1_aes_128(const u8 *key, const u8 *data, size_t data_len,
31 			       u8 *mac);
32 int __must_check aes_128_encrypt_block(const u8 *key, const u8 *in, u8 *out);
33 int __must_check aes_128_ctr_encrypt(const u8 *key, const u8 *nonce,
34 				     u8 *data, size_t data_len);
35 int __must_check aes_128_eax_encrypt(const u8 *key,
36 				     const u8 *nonce, size_t nonce_len,
37 				     const u8 *hdr, size_t hdr_len,
38 				     u8 *data, size_t data_len, u8 *tag);
39 int __must_check aes_128_eax_decrypt(const u8 *key,
40 				     const u8 *nonce, size_t nonce_len,
41 				     const u8 *hdr, size_t hdr_len,
42 				     u8 *data, size_t data_len, const u8 *tag);
43 int __must_check aes_128_cbc_encrypt(const u8 *key, const u8 *iv, u8 *data,
44 				     size_t data_len);
45 int __must_check aes_128_cbc_decrypt(const u8 *key, const u8 *iv, u8 *data,
46 				     size_t data_len);
47 
48 #endif /* AES_WRAP_H */
49