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9018e07a | 1 | /* |
c215a4bc IJ |
2 | * aes.h - Header file declaring AES functions. |
3 | */ | |
4 | /* | |
5 | * This file is Free Software. It has been modified to as part of its | |
6 | * incorporation into secnet. | |
7 | * | |
8 | * Copyright 2000 Vincent Rijmen, Antoon Bosselaers, Paulo Barreto | |
9 | * Copyright 2004 Fabrice Bellard | |
10 | * Copyright 2013 Ian Jackson | |
11 | * | |
12 | * You may redistribute this file and/or modify it under the terms of | |
13 | * the permissive licence shown below. | |
14 | * | |
15 | * You may redistribute secnet as a whole and/or modify it under the | |
16 | * terms of the GNU General Public License as published by the Free | |
17 | * Software Foundation; either version 3, or (at your option) any | |
18 | * later version. | |
19 | * | |
20 | * This program is distributed in the hope that it will be useful, | |
21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
23 | * GNU General Public License for more details. | |
24 | * | |
25 | * You should have received a copy of the GNU General Public License | |
26 | * along with this program; if not, see | |
27 | * https://www.gnu.org/licenses/gpl.html. | |
28 | */ | |
29 | /* | |
9018e07a IJ |
30 | * Copied from the upstream qemu git tree revision |
31 | * 55616505876d6683130076b810a27c7889321560 | |
32 | * but was introduced there by Fabrice Bellard in | |
33 | * e4d4fe3c34cdd6e26f9b9975efec7d1e81ad00b6 | |
34 | * AES crypto support | |
35 | * git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1036 \ | |
36 | * c046a42c-6fe2-441c-8c8c-71466251a162 | |
37 | * | |
38 | * Modified by Ian Jackson to change the guard #define from | |
39 | * QEMU_AES_H to AES_H and to add some needed system #include's. | |
40 | * | |
41 | * The header file doesn't appear to have a separate copyright notice | |
42 | * but is clearly a lightly edited (by Bellard) version of code from | |
43 | * Rijmen, Bosselaers and Barreto. | |
44 | * | |
45 | * The original is from rijndael-alg-fst.c, with this copyright | |
46 | * notice: | |
47 | * | |
48 | * rijndael-alg-fst.c | |
49 | * | |
50 | * @version 3.0 (December 2000) | |
51 | * | |
52 | * Optimised ANSI C code for the Rijndael cipher (now AES) | |
53 | * | |
54 | * @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be> | |
55 | * @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be> | |
56 | * @author Paulo Barreto <paulo.barreto@terra.com.br> | |
57 | * | |
58 | * This code is hereby placed in the public domain. | |
59 | * | |
60 | * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS | |
61 | * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
62 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
63 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE | |
64 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
65 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
66 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
67 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
68 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE | |
69 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
70 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
71 | * | |
72 | */ | |
73 | ||
74 | #ifndef AES_H | |
75 | #define AES_H | |
76 | ||
77 | #include <stdint.h> | |
78 | #include <assert.h> | |
79 | #include <string.h> | |
094ca922 IJ |
80 | |
81 | #define AES_MAXNR 14 | |
82 | #define AES_BLOCK_SIZE 16 | |
83 | ||
84 | struct aes_key_st { | |
85 | uint32_t rd_key[4 *(AES_MAXNR + 1)]; | |
86 | int rounds; | |
87 | }; | |
88 | typedef struct aes_key_st AES_KEY; | |
89 | ||
90 | int AES_set_encrypt_key(const unsigned char *userKey, const int bits, | |
91 | AES_KEY *key); | |
92 | int AES_set_decrypt_key(const unsigned char *userKey, const int bits, | |
93 | AES_KEY *key); | |
94 | ||
95 | void AES_encrypt(const unsigned char *in, unsigned char *out, | |
96 | const AES_KEY *key); | |
97 | void AES_decrypt(const unsigned char *in, unsigned char *out, | |
98 | const AES_KEY *key); | |
99 | void AES_cbc_encrypt(const unsigned char *in, unsigned char *out, | |
100 | const unsigned long length, const AES_KEY *key, | |
101 | unsigned char *ivec, const int enc); | |
102 | ||
9018e07a | 103 | #endif /* AES_H */ |