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
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
/*
* aes.h - Header file declaring AES functions.
*/
/*
* This file is Free Software. It has been modified to as part of its
* incorporation into secnet.
*
* Copyright 2000 Vincent Rijmen, Antoon Bosselaers, Paulo Barreto
* Copyright 2004 Fabrice Bellard
* Copyright 2013 Ian Jackson
*
* You may redistribute this file and/or modify it under the terms of
* the permissive licence shown below.
*
* You may redistribute secnet as a whole and/or modify it under the
* terms of the GNU General Public License as published by the Free
* Software Foundation; either version 3, or (at your option) any
* later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see
* https://www.gnu.org/licenses/gpl.html.
*/
/*
* Copied from the upstream qemu git tree revision
* 55616505876d6683130076b810a27c7889321560
* but was introduced there by Fabrice Bellard in
* e4d4fe3c34cdd6e26f9b9975efec7d1e81ad00b6
* AES crypto support
* git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1036 \
* c046a42c-6fe2-441c-8c8c-71466251a162
*
* Modified by Ian Jackson to change the guard #define from
* QEMU_AES_H to AES_H and to add some needed system #include's.
*
* The header file doesn't appear to have a separate copyright notice
* but is clearly a lightly edited (by Bellard) version of code from
* Rijmen, Bosselaers and Barreto.
*
* The original is from rijndael-alg-fst.c, with this copyright
* notice:
*
* rijndael-alg-fst.c
*
* @version 3.0 (December 2000)
*
* Optimised ANSI C code for the Rijndael cipher (now AES)
*
* @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be>
* @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be>
* @author Paulo Barreto <paulo.barreto@terra.com.br>
*
* This code is hereby placed in the public domain.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef AES_H
#define AES_H
#include <stdint.h>
#include <assert.h>
#include <string.h>
#define AES_MAXNR 14
#define AES_BLOCK_SIZE 16
struct aes_key_st {
uint32_t rd_key[4 *(AES_MAXNR + 1)];
int rounds;
};
typedef struct aes_key_st AES_KEY;
int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
AES_KEY *key);
int AES_set_decrypt_key(const unsigned char *userKey, const int bits,
AES_KEY *key);
void AES_encrypt(const unsigned char *in, unsigned char *out,
const AES_KEY *key);
void AES_decrypt(const unsigned char *in, unsigned char *out,
const AES_KEY *key);
void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
const unsigned long length, const AES_KEY *key,
unsigned char *ivec, const int enc);
#endif /* AES_H */
|
