projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b A |
1 | /* |
| 2 | * heavily modified by Tomomi Suzuki <suzuki@grelot.elec.ryukoku.ac.jp> | |
| 3 | */ | |
| 4 | /* | |
| 5 | * The CAST-128 Encryption Algorithm (RFC 2144) | |
| 6 | * | |
| 7 | * original implementation <Hideo "Sir MaNMOS" Morisita> | |
| 8 | * 1997/08/21 | |
| 9 | */ | |
| 10 | /* | |
| 11 | * Copyright (C) 1997 Hideo "Sir MANMOS" Morishita | |
| 12 | * All rights reserved. | |
| 13 | * | |
| 14 | * Redistribution and use in source and binary forms, with or without | |
| 15 | * modification, are permitted provided that the following conditions | |
| 16 | * are met: | |
| 17 | * 1. Redistributions of source code must retain the above copyright | |
| 18 | * notice, this list of conditions and the following disclaimer. | |
| 19 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 20 | * notice, this list of conditions and the following disclaimer in the | |
| 21 | * documentation and/or other materials provided with the distribution. | |
| 22 | * | |
| 23 | * THIS SOFTWARE IS PROVIDED BY Hideo "Sir MaNMOS" Morishita ``AS IS'' AND | |
| 24 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 26 | * ARE DISCLAIMED. IN NO EVENT SHALL Hideo "Sir MaNMOS" Morishita BE LIABLE | |
| 27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 28 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 29 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 30 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 31 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 32 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 33 | * SUCH DAMAGE. | |
| 34 | */ | |
| 35 | ||
| 36 | #ifndef RFC2144_CAST_128_SUBKEY_H | |
| 37 | #define RFC2144_CAST_128_SUBKEY_H | |
| 38 | ||
| 39 | #define x0x1x2x3 buf[0] | |
| 40 | #define x4x5x6x7 buf[1] | |
| 41 | #define x8x9xAxB buf[2] | |
| 42 | #define xCxDxExF buf[3] | |
| 43 | #define z0z1z2z3 buf[4] | |
| 44 | #define z4z5z6z7 buf[5] | |
| 45 | #define z8z9zAzB buf[6] | |
| 46 | #define zCzDzEzF buf[7] | |
| 47 | ||
| 48 | #define byte0(x) (((x) >> 24)) | |
| 49 | #define byte1(x) (((x) >> 16) & 0xff) | |
| 50 | #define byte2(x) (((x) >> 8) & 0xff) | |
| 51 | #define byte3(x) (((x)) & 0xff) | |
| 52 | ||
| 53 | #define x0 byte0(buf[0]) | |
| 54 | #define x1 byte1(buf[0]) | |
| 55 | #define x2 byte2(buf[0]) | |
| 56 | #define x3 byte3(buf[0]) | |
| 57 | #define x4 byte0(buf[1]) | |
| 58 | #define x5 byte1(buf[1]) | |
| 59 | #define x6 byte2(buf[1]) | |
| 60 | #define x7 byte3(buf[1]) | |
| 61 | #define x8 byte0(buf[2]) | |
| 62 | #define x9 byte1(buf[2]) | |
| 63 | #define xA byte2(buf[2]) | |
| 64 | #define xB byte3(buf[2]) | |
| 65 | #define xC byte0(buf[3]) | |
| 66 | #define xD byte1(buf[3]) | |
| 67 | #define xE byte2(buf[3]) | |
| 68 | #define xF byte3(buf[3]) | |
| 69 | #define z0 byte0(buf[4]) | |
| 70 | #define z1 byte1(buf[4]) | |
| 71 | #define z2 byte2(buf[4]) | |
| 72 | #define z3 byte3(buf[4]) | |
| 73 | #define z4 byte0(buf[5]) | |
| 74 | #define z5 byte1(buf[5]) | |
| 75 | #define z6 byte2(buf[5]) | |
| 76 | #define z7 byte3(buf[5]) | |
| 77 | #define z8 byte0(buf[6]) | |
| 78 | #define z9 byte1(buf[6]) | |
| 79 | #define zA byte2(buf[6]) | |
| 80 | #define zB byte3(buf[6]) | |
| 81 | #define zC byte0(buf[7]) | |
| 82 | #define zD byte1(buf[7]) | |
| 83 | #define zE byte2(buf[7]) | |
| 84 | #define zF byte3(buf[7]) | |
| 85 | ||
| 86 | #define circular_leftshift(x, y) ( ((x) << (y)) | ((x) >> (32-(y))) ) | |
| 87 | ||
| 88 | #endif | |
| 89 |