seed_locl.h revision 296341
1/* 2 * Copyright (c) 2007 KISA(Korea Information Security Agency). All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Neither the name of author nor the names of its contributors may 10 * be used to endorse or promote products derived from this software 11 * without specific prior written permission. 12 * 13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 * 25 */ 26#ifndef HEADER_SEED_LOCL_H 27# define HEADER_SEED_LOCL_H 28 29# include "openssl/e_os2.h" 30# include <openssl/seed.h> 31 32# ifdef SEED_LONG /* need 32-bit type */ 33typedef unsigned long seed_word; 34# else 35typedef unsigned int seed_word; 36# endif 37 38 39#ifdef __cplusplus 40extern "C" { 41#endif 42 43# define G_FUNC(v) \ 44 SS[0][(unsigned char) (v) & 0xff] ^ SS[1][(unsigned char) ((v)>>8) & 0xff] ^ \ 45 SS[2][(unsigned char)((v)>>16) & 0xff] ^ SS[3][(unsigned char)((v)>>24) & 0xff] 46 47# define char2word(c, i) \ 48 (i) = ((((seed_word)(c)[0]) << 24) | (((seed_word)(c)[1]) << 16) | (((seed_word)(c)[2]) << 8) | ((seed_word)(c)[3])) 49 50# define word2char(l, c) \ 51 *((c)+0) = (unsigned char)((l)>>24) & 0xff; \ 52 *((c)+1) = (unsigned char)((l)>>16) & 0xff; \ 53 *((c)+2) = (unsigned char)((l)>> 8) & 0xff; \ 54 *((c)+3) = (unsigned char)((l)) & 0xff 55 56# define KEYSCHEDULE_UPDATE0(T0, T1, X1, X2, X3, X4, KC) \ 57 (T0) = (X3); \ 58 (X3) = (((X3)<<8) ^ ((X4)>>24)) & 0xffffffff; \ 59 (X4) = (((X4)<<8) ^ ((T0)>>24)) & 0xffffffff; \ 60 (T0) = ((X1) + (X3) - (KC)) & 0xffffffff; \ 61 (T1) = ((X2) + (KC) - (X4)) & 0xffffffff 62 63# define KEYSCHEDULE_UPDATE1(T0, T1, X1, X2, X3, X4, KC) \ 64 (T0) = (X1); \ 65 (X1) = (((X1)>>8) ^ ((X2)<<24)) & 0xffffffff; \ 66 (X2) = (((X2)>>8) ^ ((T0)<<24)) & 0xffffffff; \ 67 (T0) = ((X1) + (X3) - (KC)) & 0xffffffff; \ 68 (T1) = ((X2) + (KC) - (X4)) & 0xffffffff 69 70# define KEYUPDATE_TEMP(T0, T1, K) \ 71 (K)[0] = G_FUNC((T0)); \ 72 (K)[1] = G_FUNC((T1)) 73 74# define XOR_SEEDBLOCK(DST, SRC) \ 75 ((DST))[0] ^= ((SRC))[0]; \ 76 ((DST))[1] ^= ((SRC))[1]; \ 77 ((DST))[2] ^= ((SRC))[2]; \ 78 ((DST))[3] ^= ((SRC))[3] 79 80# define MOV_SEEDBLOCK(DST, SRC) \ 81 ((DST))[0] = ((SRC))[0]; \ 82 ((DST))[1] = ((SRC))[1]; \ 83 ((DST))[2] = ((SRC))[2]; \ 84 ((DST))[3] = ((SRC))[3] 85 86# define CHAR2WORD(C, I) \ 87 char2word((C), (I)[0]); \ 88 char2word((C+4), (I)[1]); \ 89 char2word((C+8), (I)[2]); \ 90 char2word((C+12), (I)[3]) 91 92# define WORD2CHAR(I, C) \ 93 word2char((I)[0], (C)); \ 94 word2char((I)[1], (C+4)); \ 95 word2char((I)[2], (C+8)); \ 96 word2char((I)[3], (C+12)) 97 98# define E_SEED(T0, T1, X1, X2, X3, X4, rbase) \ 99 (T0) = (X3) ^ (ks->data)[(rbase)]; \ 100 (T1) = (X4) ^ (ks->data)[(rbase)+1]; \ 101 (T1) ^= (T0); \ 102 (T1) = G_FUNC((T1)); \ 103 (T0) = ((T0) + (T1)) & 0xffffffff; \ 104 (T0) = G_FUNC((T0)); \ 105 (T1) = ((T1) + (T0)) & 0xffffffff; \ 106 (T1) = G_FUNC((T1)); \ 107 (T0) = ((T0) + (T1)) & 0xffffffff; \ 108 (X1) ^= (T0); \ 109 (X2) ^= (T1) 110 111#ifdef __cplusplus 112} 113#endif 114 115#endif /* HEADER_SEED_LOCL_H */ 116