| | 1 | /* $FreeBSD: src/sys/crypto/cast128/cast128_subkey.h,v 1.1.2.1 2000/07/15 07:14:21 kris Exp $ */ |
| | 2 | /* $KAME: cast128_subkey.h,v 1.3 2000/03/27 04:36:30 sumikawa Exp $ */ |
| | 3 | |
| | 4 | /* |
| | 5 | * heavily modified by Tomomi Suzuki <suzuki@grelot.elec.ryukoku.ac.jp> |
| | 6 | */ |
| | 7 | /* |
| | 8 | * The CAST-128 Encryption Algorithm (RFC 2144) |
| | 9 | * |
| | 10 | * original implementation <Hideo "Sir MaNMOS" Morisita> |
| | 11 | * 1997/08/21 |
| | 12 | */ |
| | 13 | /* |
| | 14 | * Copyright (C) 1997 Hideo "Sir MANMOS" Morishita |
| | 15 | * All rights reserved. |
| | 16 | * |
| | 17 | * Redistribution and use in source and binary forms, with or without |
| | 18 | * modification, are permitted provided that the following conditions |
| | 19 | * are met: |
| | 20 | * 1. Redistributions of source code must retain the above copyright |
| | 21 | * notice, this list of conditions and the following disclaimer. |
| | 22 | * 2. Redistributions in binary form must reproduce the above copyright |
| | 23 | * notice, this list of conditions and the following disclaimer in the |
| | 24 | * documentation and/or other materials provided with the distribution. |
| | 25 | * |
| | 26 | * THIS SOFTWARE IS PROVIDED BY Hideo "Sir MaNMOS" Morishita ``AS IS'' AND |
| | 27 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| | 28 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| | 29 | * ARE DISCLAIMED. IN NO EVENT SHALL Hideo "Sir MaNMOS" Morishita BE LIABLE |
| | 30 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| | 31 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| | 32 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| | 33 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| | 34 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| | 35 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| | 36 | * SUCH DAMAGE. |
| | 37 | */ |
| | 38 | |
| | 39 | #ifndef RFC2144_CAST_128_SUBKEY_H |
| | 40 | #define RFC2144_CAST_128_SUBKEY_H |
| | 41 | |
| | 42 | #define x0x1x2x3 buf[0] |
| | 43 | #define x4x5x6x7 buf[1] |
| | 44 | #define x8x9xAxB buf[2] |
| | 45 | #define xCxDxExF buf[3] |
| | 46 | #define z0z1z2z3 buf[4] |
| | 47 | #define z4z5z6z7 buf[5] |
| | 48 | #define z8z9zAzB buf[6] |
| | 49 | #define zCzDzEzF buf[7] |
| | 50 | |
| | 51 | #define byte0(x) (((x) >> 24)) |
| | 52 | #define byte1(x) (((x) >> 16) & 0xff) |
| | 53 | #define byte2(x) (((x) >> 8) & 0xff) |
| | 54 | #define byte3(x) (((x)) & 0xff) |
| | 55 | |
| | 56 | #define x0 byte0(buf[0]) |
| | 57 | #define x1 byte1(buf[0]) |
| | 58 | #define x2 byte2(buf[0]) |
| | 59 | #define x3 byte3(buf[0]) |
| | 60 | #define x4 byte0(buf[1]) |
| | 61 | #define x5 byte1(buf[1]) |
| | 62 | #define x6 byte2(buf[1]) |
| | 63 | #define x7 byte3(buf[1]) |
| | 64 | #define x8 byte0(buf[2]) |
| | 65 | #define x9 byte1(buf[2]) |
| | 66 | #define xA byte2(buf[2]) |
| | 67 | #define xB byte3(buf[2]) |
| | 68 | #define xC byte0(buf[3]) |
| | 69 | #define xD byte1(buf[3]) |
| | 70 | #define xE byte2(buf[3]) |
| | 71 | #define xF byte3(buf[3]) |
| | 72 | #define z0 byte0(buf[4]) |
| | 73 | #define z1 byte1(buf[4]) |
| | 74 | #define z2 byte2(buf[4]) |
| | 75 | #define z3 byte3(buf[4]) |
| | 76 | #define z4 byte0(buf[5]) |
| | 77 | #define z5 byte1(buf[5]) |
| | 78 | #define z6 byte2(buf[5]) |
| | 79 | #define z7 byte3(buf[5]) |
| | 80 | #define z8 byte0(buf[6]) |
| | 81 | #define z9 byte1(buf[6]) |
| | 82 | #define zA byte2(buf[6]) |
| | 83 | #define zB byte3(buf[6]) |
| | 84 | #define zC byte0(buf[7]) |
| | 85 | #define zD byte1(buf[7]) |
| | 86 | #define zE byte2(buf[7]) |
| | 87 | #define zF byte3(buf[7]) |
| | 88 | |
| | 89 | #define circular_leftshift(x, y) ( ((x) << (y)) | ((x) >> (32-(y))) ) |
| | 90 | |
| | 91 | #endif |
| | 92 | |
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