seed_locl.h revision 296465
1116491Sharti/* 2116491Sharti * Copyright (c) 2007 KISA(Korea Information Security Agency). All rights reserved. 3116491Sharti * 4116491Sharti * Redistribution and use in source and binary forms, with or without 5116491Sharti * modification, are permitted provided that the following conditions 6116491Sharti * are met: 7116491Sharti * 1. Redistributions of source code must retain the above copyright 8116491Sharti * notice, this list of conditions and the following disclaimer. 9116491Sharti * 2. Neither the name of author nor the names of its contributors may 10116491Sharti * be used to endorse or promote products derived from this software 11116491Sharti * without specific prior written permission. 12116491Sharti * 13116491Sharti * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14116491Sharti * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15116491Sharti * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16116491Sharti * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 17116491Sharti * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18116491Sharti * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19116491Sharti * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20116491Sharti * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21116491Sharti * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22116491Sharti * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23116491Sharti * SUCH DAMAGE. 24116491Sharti * 25116491Sharti */ 26116491Sharti#ifndef HEADER_SEED_LOCL_H 27116491Sharti# define HEADER_SEED_LOCL_H 28116491Sharti 29116491Sharti# include "openssl/e_os2.h" 30116491Sharti# include <openssl/seed.h> 31116491Sharti 32116491Sharti# ifdef SEED_LONG /* need 32-bit type */ 33116491Shartitypedef unsigned long seed_word; 34116519Sharti# else 35116519Shartitypedef unsigned int seed_word; 36116519Sharti# endif 37116491Sharti 38116491Sharti 39116491Sharti#ifdef __cplusplus 40116491Shartiextern "C" { 41116491Sharti#endif 42116491Sharti 43116491Sharti# define G_FUNC(v) \ 44116491Sharti SS[0][(unsigned char) (v) & 0xff] ^ SS[1][(unsigned char) ((v)>>8) & 0xff] ^ \ 45116491Sharti SS[2][(unsigned char)((v)>>16) & 0xff] ^ SS[3][(unsigned char)((v)>>24) & 0xff] 46116491Sharti 47116491Sharti# define char2word(c, i) \ 48116491Sharti (i) = ((((seed_word)(c)[0]) << 24) | (((seed_word)(c)[1]) << 16) | (((seed_word)(c)[2]) << 8) | ((seed_word)(c)[3])) 49116491Sharti 50116491Sharti# define word2char(l, c) \ 51116491Sharti *((c)+0) = (unsigned char)((l)>>24) & 0xff; \ 52116491Sharti *((c)+1) = (unsigned char)((l)>>16) & 0xff; \ 53116491Sharti *((c)+2) = (unsigned char)((l)>> 8) & 0xff; \ 54116491Sharti *((c)+3) = (unsigned char)((l)) & 0xff 55116491Sharti 56116491Sharti# define KEYSCHEDULE_UPDATE0(T0, T1, X1, X2, X3, X4, KC) \ 57116491Sharti (T0) = (X3); \ 58116491Sharti (X3) = (((X3)<<8) ^ ((X4)>>24)) & 0xffffffff; \ 59116491Sharti (X4) = (((X4)<<8) ^ ((T0)>>24)) & 0xffffffff; \ 60116491Sharti (T0) = ((X1) + (X3) - (KC)) & 0xffffffff; \ 61116491Sharti (T1) = ((X2) + (KC) - (X4)) & 0xffffffff 62116491Sharti 63116491Sharti# define KEYSCHEDULE_UPDATE1(T0, T1, X1, X2, X3, X4, KC) \ 64116491Sharti (T0) = (X1); \ 65116491Sharti (X1) = (((X1)>>8) ^ ((X2)<<24)) & 0xffffffff; \ 66116491Sharti (X2) = (((X2)>>8) ^ ((T0)<<24)) & 0xffffffff; \ 67116491Sharti (T0) = ((X1) + (X3) - (KC)) & 0xffffffff; \ 68116491Sharti (T1) = ((X2) + (KC) - (X4)) & 0xffffffff 69116491Sharti 70116491Sharti# define KEYUPDATE_TEMP(T0, T1, K) \ 71116491Sharti (K)[0] = G_FUNC((T0)); \ 72116491Sharti (K)[1] = G_FUNC((T1)) 73116491Sharti 74116491Sharti# define XOR_SEEDBLOCK(DST, SRC) \ 75116491Sharti ((DST))[0] ^= ((SRC))[0]; \ 76116491Sharti ((DST))[1] ^= ((SRC))[1]; \ 77116491Sharti ((DST))[2] ^= ((SRC))[2]; \ 78116491Sharti ((DST))[3] ^= ((SRC))[3] 79116491Sharti 80116491Sharti# define MOV_SEEDBLOCK(DST, SRC) \ 81116491Sharti ((DST))[0] = ((SRC))[0]; \ 82116491Sharti ((DST))[1] = ((SRC))[1]; \ 83116491Sharti ((DST))[2] = ((SRC))[2]; \ 84116491Sharti ((DST))[3] = ((SRC))[3] 85116491Sharti 86116491Sharti# define CHAR2WORD(C, I) \ 87116491Sharti char2word((C), (I)[0]); \ 88116491Sharti char2word((C+4), (I)[1]); \ 89116491Sharti char2word((C+8), (I)[2]); \ 90116491Sharti char2word((C+12), (I)[3]) 91116491Sharti 92116491Sharti# define WORD2CHAR(I, C) \ 93116491Sharti word2char((I)[0], (C)); \ 94116491Sharti word2char((I)[1], (C+4)); \ 95116491Sharti word2char((I)[2], (C+8)); \ 96116491Sharti word2char((I)[3], (C+12)) 97116491Sharti 98116491Sharti# define E_SEED(T0, T1, X1, X2, X3, X4, rbase) \ 99116491Sharti (T0) = (X3) ^ (ks->data)[(rbase)]; \ 100116491Sharti (T1) = (X4) ^ (ks->data)[(rbase)+1]; \ 101116491Sharti (T1) ^= (T0); \ 102116491Sharti (T1) = G_FUNC((T1)); \ 103116491Sharti (T0) = ((T0) + (T1)) & 0xffffffff; \ 104116491Sharti (T0) = G_FUNC((T0)); \ 105116491Sharti (T1) = ((T1) + (T0)) & 0xffffffff; \ 106116491Sharti (T1) = G_FUNC((T1)); \ 107116491Sharti (T0) = ((T0) + (T1)) & 0xffffffff; \ 108116491Sharti (X1) ^= (T0); \ 109116491Sharti (X2) ^= (T1) 110116491Sharti 111116491Sharti#ifdef __cplusplus 112116491Sharti} 113116491Sharti#endif 114116491Sharti 115116491Sharti#endif /* HEADER_SEED_LOCL_H */ 116116491Sharti