| Rik Snel | aec3694 | 2006-10-29 11:02:07 +1100 | [diff] [blame] | 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 */ |