diff options
Diffstat (limited to 'utils/atj2137/adfuload/encrypt.c')
-rw-r--r-- | utils/atj2137/adfuload/encrypt.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/utils/atj2137/adfuload/encrypt.c b/utils/atj2137/adfuload/encrypt.c new file mode 100644 index 0000000000..fee7a5a83d --- /dev/null +++ b/utils/atj2137/adfuload/encrypt.c | |||
@@ -0,0 +1,96 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * | ||
9 | * Copyright (C) 2013 by Amaury Pouly | ||
10 | * | ||
11 | * This program is free software; you can redistribute it and/or | ||
12 | * modify it under the terms of the GNU General Public License | ||
13 | * as published by the Free Software Foundation; either version 2 | ||
14 | * of the License, or (at your option) any later version. | ||
15 | * | ||
16 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
17 | * KIND, either express or implied. | ||
18 | * | ||
19 | ****************************************************************************/ | ||
20 | |||
21 | const unsigned char xor_key[512] = | ||
22 | { | ||
23 | 0x9b, 0x94, 0xf6, 0x9e, 0x2f, 0x0a, 0x40, 0xfd, 0x9a, 0x78, 0x2c, 0xdd, 0x4f, 0x96, 0x5e, 0xdd, | ||
24 | 0xc9, 0x01, 0xd3, 0x9d, 0x71, 0x8f, 0xda, 0xbb, 0xc1, 0xdf, 0x5f, 0x01, 0xaa, 0x35, 0x6f, 0xdc, | ||
25 | 0x33, 0x85, 0xf9, 0x10, 0x64, 0xce, 0xd2, 0xab, 0x62, 0xaa, 0xfc, 0x37, 0xdb, 0x22, 0x28, 0x34, | ||
26 | 0xa4, 0xc6, 0x79, 0xc6, 0xa1, 0xfe, 0x8b, 0xaa, 0xe6, 0x9b, 0xb4, 0x6e, 0x1b, 0xb1, 0x8a, 0xe2, | ||
27 | 0x25, 0xa9, 0xa5, 0xca, 0x03, 0x92, 0xa6, 0xd5, 0xf5, 0xb8, 0x77, 0xd3, 0xe4, 0x78, 0xd5, 0x22, | ||
28 | 0xfe, 0x52, 0x0c, 0x69, 0xa1, 0x40, 0x02, 0x89, 0x7a, 0x46, 0x77, 0xd1, 0xee, 0x4b, 0x8b, 0x72, | ||
29 | 0xb8, 0x27, 0x81, 0x32, 0xd4, 0xfd, 0xc2, 0x64, 0x9c, 0xcb, 0x25, 0x17, 0x32, 0x3f, 0x6d, 0x8e, | ||
30 | 0x1d, 0xcd, 0x14, 0xf0, 0x37, 0xfe, 0x47, 0x41, 0xc6, 0x0b, 0x31, 0x91, 0xe9, 0xaa, 0x7c, 0x73, | ||
31 | 0x36, 0x28, 0x15, 0xb1, 0xa1, 0xb8, 0x30, 0x3e, 0x9f, 0x0b, 0x8d, 0x6c, 0x8c, 0x20, 0xf9, 0x5f, | ||
32 | 0x4a, 0x5e, 0x17, 0xc2, 0x2c, 0xe0, 0x60, 0xb8, 0x12, 0x10, 0x69, 0x16, 0xd5, 0x77, 0x64, 0xcf, | ||
33 | 0xe5, 0xd3, 0xea, 0xb0, 0x30, 0x6a, 0xf8, 0x4d, 0x46, 0x9f, 0x37, 0x3b, 0xbb, 0xc3, 0x80, 0x7f, | ||
34 | 0xcd, 0x2d, 0x9f, 0x47, 0x47, 0x8d, 0x57, 0xd8, 0xa6, 0x7d, 0xa7, 0xc8, 0x79, 0x59, 0x4c, 0x6d, | ||
35 | 0x0e, 0x51, 0x87, 0x95, 0x4a, 0xbc, 0x20, 0x77, 0xd9, 0xaf, 0xab, 0xea, 0x88, 0xcf, 0x0a, 0xd5, | ||
36 | 0xee, 0x63, 0x33, 0xe7, 0x52, 0xae, 0x34, 0x88, 0xc9, 0x7b, 0x74, 0x0f, 0x9f, 0xf9, 0x3b, 0x35, | ||
37 | 0xf8, 0xc9, 0x74, 0xc9, 0xb7, 0x56, 0xb2, 0xa6, 0x9f, 0x65, 0x72, 0xe3, 0xb8, 0xed, 0xa0, 0x49, | ||
38 | 0xf5, 0x28, 0x5c, 0x0a, 0x13, 0xea, 0xfd, 0xaf, 0xc4, 0x32, 0x56, 0x53, 0x0d, 0xfe, 0x39, 0x0f, | ||
39 | 0xed, 0x64, 0x3a, 0xb5, 0x3f, 0xdf, 0xb5, 0xc1, 0xe1, 0xe7, 0x13, 0x8c, 0x16, 0xc4, 0x48, 0xc3, | ||
40 | 0x29, 0xa3, 0xa0, 0x18, 0x54, 0xea, 0xbc, 0x37, 0xdf, 0xc9, 0xd7, 0xfc, 0x8c, 0x11, 0x4f, 0xe3, | ||
41 | 0x33, 0x4a, 0x60, 0xc0, 0xaa, 0x00, 0x32, 0xb0, 0xe7, 0x5d, 0x16, 0x4f, 0x69, 0xfd, 0x0c, 0x2b, | ||
42 | 0xd4, 0xfd, 0x8a, 0x79, 0xdb, 0x55, 0x78, 0x07, 0x62, 0x68, 0x7f, 0x72, 0xe4, 0xda, 0x83, 0x99, | ||
43 | 0x13, 0xa2, 0x6e, 0x51, 0xbf, 0x60, 0x30, 0x5b, 0xf9, 0xf0, 0x04, 0x93, 0x78, 0x3f, 0xf4, 0x69, | ||
44 | 0x3c, 0x5d, 0x9f, 0x95, 0x70, 0xd4, 0x3a, 0x07, 0x95, 0x39, 0xd5, 0x1d, 0xdd, 0x00, 0xdf, 0x19, | ||
45 | 0xd5, 0x94, 0xed, 0xd2, 0x47, 0xa8, 0xb7, 0xaa, 0x5f, 0xc7, 0x63, 0xbf, 0x0c, 0x33, 0x07, 0x66, | ||
46 | 0xa9, 0xec, 0x69, 0xd5, 0xdd, 0x0f, 0x09, 0x1f, 0xc0, 0x61, 0x61, 0x66, 0x3f, 0x2c, 0x6b, 0x4b, | ||
47 | 0xc1, 0x4a, 0x64, 0xaa, 0x0b, 0x7f, 0xd0, 0x85, 0x60, 0x0c, 0xbe, 0x3d, 0xed, 0x80, 0x4d, 0x08, | ||
48 | 0x65, 0xd2, 0x6f, 0x9f, 0xe9, 0xad, 0xed, 0x37, 0x2a, 0x0b, 0xab, 0x00, 0xd1, 0x05, 0x2e, 0x18, | ||
49 | 0x1f, 0xe9, 0x5b, 0x41, 0xd0, 0x8e, 0x81, 0xd4, 0x46, 0xe4, 0x9a, 0x74, 0xe3, 0xcf, 0xce, 0x38, | ||
50 | 0xb7, 0x36, 0x39, 0x5c, 0x5b, 0x57, 0xee, 0x37, 0x1c, 0x5d, 0x3c, 0x6d, 0x5c, 0x34, 0x30, 0x66, | ||
51 | 0x36, 0x9c, 0x5a, 0xff, 0x61, 0x7c, 0xd4, 0x7f, 0x57, 0x79, 0x81, 0xcc, 0xb6, 0xc8, 0x93, 0xdf, | ||
52 | 0xe6, 0x40, 0x50, 0x75, 0xfc, 0xb4, 0x15, 0x07, 0xde, 0x7f, 0x9b, 0xfd, 0xa8, 0x60, 0x79, 0x1f, | ||
53 | 0x4f, 0x89, 0xea, 0x4c, 0x85, 0xf2, 0xd1, 0x6e, 0xdc, 0xf3, 0xfa, 0xad, 0x2d, 0x12, 0xa3, 0xe3, | ||
54 | 0x3b, 0x1a, 0x3b, 0x50, 0x94, 0x6d, 0x69, 0x90, 0xb8, 0x9a, 0x50, 0xc9, 0x7d, 0x32, 0x12, 0x29, | ||
55 | }; | ||
56 | |||
57 | static void perm_it(unsigned char *data, int length) | ||
58 | { | ||
59 | int i, j; | ||
60 | for(i = 0; (i + 12) < length; i += 12) | ||
61 | { | ||
62 | unsigned char perm[8]; | ||
63 | perm[0] = data[i + 1]; | ||
64 | perm[1] = data[i + 7]; | ||
65 | perm[2] = data[i + 2]; | ||
66 | perm[3] = data[i + 4]; | ||
67 | perm[4] = data[i + 0]; | ||
68 | perm[5] = data[i + 6]; | ||
69 | perm[6] = data[i + 3]; | ||
70 | perm[7] = data[i + 5]; | ||
71 | for(j = 0; j < 8; j++) | ||
72 | data[i + j] = perm[j]; | ||
73 | } | ||
74 | } | ||
75 | |||
76 | static void xor_it(unsigned char *data, int length) | ||
77 | { | ||
78 | int i, j; | ||
79 | for(i = 0; i < length; i += 4) | ||
80 | { | ||
81 | unsigned char Ekey = xor_key[xor_key[data[i]] + 256]; | ||
82 | for(j = 1; j < 4; j++) | ||
83 | data[i + j] ^= Ekey; | ||
84 | } | ||
85 | } | ||
86 | |||
87 | int encrypt(unsigned char *data, int length) | ||
88 | { | ||
89 | if (length % 512) | ||
90 | return -1; | ||
91 | |||
92 | xor_it(data, length); | ||
93 | perm_it(data, length); | ||
94 | |||
95 | return 0; | ||
96 | } | ||