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1 | /* b128ops.h - common 128-bit block operations |
2 | * |
3 | * Copyright (c) 2003, Dr Brian Gladman, Worcester, UK. |
4 | * Copyright (c) 2006, Rik Snel <rsnel@cube.dyndns.org> |
5 | * |
6 | * Based on Dr Brian Gladman's (GPL'd) work published at |
7 | * http://fp.gladman.plus.com/cryptography_technology/index.htm |
8 | * See the original copyright notice below. |
9 | * |
10 | * This program is free software; you can redistribute it and/or modify it |
11 | * under the terms of the GNU General Public License as published by the Free |
12 | * Software Foundation; either version 2 of the License, or (at your option) |
13 | * any later version. |
14 | */ |
15 | /* |
16 | --------------------------------------------------------------------------- |
17 | Copyright (c) 2003, Dr Brian Gladman, Worcester, UK. All rights reserved. |
18 | |
19 | LICENSE TERMS |
20 | |
21 | The free distribution and use of this software in both source and binary |
22 | form is allowed (with or without changes) provided that: |
23 | |
24 | 1. distributions of this source code include the above copyright |
25 | notice, this list of conditions and the following disclaimer; |
26 | |
27 | 2. distributions in binary form include the above copyright |
28 | notice, this list of conditions and the following disclaimer |
29 | in the documentation and/or other associated materials; |
30 | |
31 | 3. the copyright holder's name is not used to endorse products |
32 | built using this software without specific written permission. |
33 | |
34 | ALTERNATIVELY, provided that this notice is retained in full, this product |
35 | may be distributed under the terms of the GNU General Public License (GPL), |
36 | in which case the provisions of the GPL apply INSTEAD OF those given above. |
37 | |
38 | DISCLAIMER |
39 | |
40 | This software is provided 'as is' with no explicit or implied warranties |
41 | in respect of its properties, including, but not limited to, correctness |
42 | and/or fitness for purpose. |
43 | --------------------------------------------------------------------------- |
44 | Issue Date: 13/06/2006 |
45 | */ |
46 | |
47 | #ifndef _CRYPTO_B128OPS_H |
48 | #define _CRYPTO_B128OPS_H |
49 | |
50 | #include <linux/types.h> |
51 | |
52 | typedef struct { |
53 | u64 a, b; |
54 | } u128; |
55 | |
56 | typedef struct { |
57 | __be64 a, b; |
58 | } be128; |
59 | |
60 | typedef struct { |
61 | __le64 b, a; |
62 | } le128; |
63 | |
64 | static inline void u128_xor(u128 *r, const u128 *p, const u128 *q) |
65 | { |
66 | r->a = p->a ^ q->a; |
67 | r->b = p->b ^ q->b; |
68 | } |
69 | |
70 | static inline void be128_xor(be128 *r, const be128 *p, const be128 *q) |
71 | { |
72 | u128_xor((u128 *)r, (u128 *)p, (u128 *)q); |
73 | } |
74 | |
75 | static inline void le128_xor(le128 *r, const le128 *p, const le128 *q) |
76 | { |
77 | u128_xor((u128 *)r, (u128 *)p, (u128 *)q); |
78 | } |
79 | |
80 | #endif /* _CRYPTO_B128OPS_H */ |
81 |
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