blob: 21659ff3cf387176cdbd2bff7d34797429eae699 [file] [log] [blame]
Amaury Poulycb09e362012-11-03 02:16:01 +01001/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2012 Amaury Pouly
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21#include "mg.h"
22#include <crypto++/cryptlib.h>
23#include <crypto++/modes.h>
24#include <crypto++/des.h>
25#include <crypto++/aes.h>
26#include <stdio.h>
27
28using namespace CryptoPP;
29namespace
30{
31 ECB_Mode< DES >::Decryption g_dec;
32 ECB_Mode< DES >::Encryption g_enc;
33
34 inline int dec_des_ecb(void *in, int size, void *out, uint8_t *key)
35 {
Amaury Pouly214f2262012-11-12 18:35:00 +010036 if(size % 8)
37 return 42;
Amaury Poulycb09e362012-11-03 02:16:01 +010038 g_dec.SetKey(key, 8);
39 g_dec.ProcessData((byte*)out, (byte*)in, size);
40 return 0;
41 }
42
43 inline int enc_des_ecb(void *in, int size, void *out, uint8_t *key)
44 {
Amaury Pouly214f2262012-11-12 18:35:00 +010045 if(size % 8)
46 return 42;
Amaury Poulycb09e362012-11-03 02:16:01 +010047 g_enc.SetKey(key, 8);
48 g_enc.ProcessData((byte*)out, (byte*)in, size);
49 return 0;
50 }
51}
52
53int mg_decrypt_fw(void *in, int size, void *out, uint8_t *key)
54{
55 return dec_des_ecb(in, size, out, key);
56}
57
58int mg_encrypt_fw(void *in, int size, void *out, uint8_t *key)
59{
60 return enc_des_ecb(in, size, out, key);
61}
62
63int mg_decrypt_pass(void *in, int size, void *out, uint8_t *key)
64{
65 return dec_des_ecb(in, size, out, key);
66}
67
68int mg_encrypt_pass(void *in, int size, void *out, uint8_t *key)
69{
70 return enc_des_ecb(in, size, out, key);
71}