blob: 12dcd221d52b84b4adab5b0424b66570e0d0673f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
/*
* Copyright (C) 2015 Martin Willi
* Copyright (C) 2015 revosec AG
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
/**
* @defgroup aesni_key aesni_key
* @{ @ingroup aesni
*/
#ifndef AESNI_KEY_H_
#define AESNI_KEY_H_
#include <library.h>
#include <wmmintrin.h>
/**
* AES block size, in bytes
*/
#define AES_BLOCK_SIZE 16
typedef struct aesni_key_t aesni_key_t;
/**
* Key schedule for encryption/decryption using on AES-NI.
*/
struct aesni_key_t {
/**
* Destroy a aesni_key_t.
*/
void (*destroy)(aesni_key_t *this);
/**
* Number of AES rounds (10, 12, 14)
*/
int rounds;
/**
* Key schedule, for each round + the round 0 (whitening)
*/
__attribute__((aligned(sizeof(__m128i)))) __m128i schedule[];
};
/**
* Create a AESNI key schedule instance.
*
* @param encrypt TRUE for encryption schedule, FALSE for decryption
* @param key non-expanded crypto key, 16, 24 or 32 bytes
* @return key schedule, NULL on invalid key size
*/
aesni_key_t *aesni_key_create(bool encrypt, chunk_t key);
#endif /** AESNI_KEY_H_ @}*/
|
