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115 lines
4.4 KiB
115 lines
4.4 KiB
/* |
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* Copyright (c) 2007 KISA(Korea Information Security Agency). All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Neither the name of author nor the names of its contributors may |
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* be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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*/ |
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#ifndef HEADER_SEED_LOCL_H |
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# define HEADER_SEED_LOCL_H |
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# include "openssl/e_os2.h" |
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# include <openssl/seed.h> |
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# ifdef SEED_LONG /* need 32-bit type */ |
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typedef unsigned long seed_word; |
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# else |
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typedef unsigned int seed_word; |
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# endif |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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# define G_FUNC(v) \ |
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SS[0][(unsigned char) (v) & 0xff] ^ SS[1][(unsigned char) ((v)>>8) & 0xff] ^ \ |
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SS[2][(unsigned char)((v)>>16) & 0xff] ^ SS[3][(unsigned char)((v)>>24) & 0xff] |
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# define char2word(c, i) \ |
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(i) = ((((seed_word)(c)[0]) << 24) | (((seed_word)(c)[1]) << 16) | (((seed_word)(c)[2]) << 8) | ((seed_word)(c)[3])) |
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# define word2char(l, c) \ |
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*((c)+0) = (unsigned char)((l)>>24) & 0xff; \ |
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*((c)+1) = (unsigned char)((l)>>16) & 0xff; \ |
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*((c)+2) = (unsigned char)((l)>> 8) & 0xff; \ |
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*((c)+3) = (unsigned char)((l)) & 0xff |
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# define KEYSCHEDULE_UPDATE0(T0, T1, X1, X2, X3, X4, KC) \ |
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(T0) = (X3); \ |
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(X3) = (((X3)<<8) ^ ((X4)>>24)) & 0xffffffff; \ |
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(X4) = (((X4)<<8) ^ ((T0)>>24)) & 0xffffffff; \ |
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(T0) = ((X1) + (X3) - (KC)) & 0xffffffff; \ |
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(T1) = ((X2) + (KC) - (X4)) & 0xffffffff |
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# define KEYSCHEDULE_UPDATE1(T0, T1, X1, X2, X3, X4, KC) \ |
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(T0) = (X1); \ |
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(X1) = (((X1)>>8) ^ ((X2)<<24)) & 0xffffffff; \ |
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(X2) = (((X2)>>8) ^ ((T0)<<24)) & 0xffffffff; \ |
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(T0) = ((X1) + (X3) - (KC)) & 0xffffffff; \ |
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(T1) = ((X2) + (KC) - (X4)) & 0xffffffff |
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# define KEYUPDATE_TEMP(T0, T1, K) \ |
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(K)[0] = G_FUNC((T0)); \ |
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(K)[1] = G_FUNC((T1)) |
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# define XOR_SEEDBLOCK(DST, SRC) \ |
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((DST))[0] ^= ((SRC))[0]; \ |
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((DST))[1] ^= ((SRC))[1]; \ |
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((DST))[2] ^= ((SRC))[2]; \ |
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((DST))[3] ^= ((SRC))[3] |
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# define MOV_SEEDBLOCK(DST, SRC) \ |
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((DST))[0] = ((SRC))[0]; \ |
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((DST))[1] = ((SRC))[1]; \ |
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((DST))[2] = ((SRC))[2]; \ |
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((DST))[3] = ((SRC))[3] |
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# define CHAR2WORD(C, I) \ |
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char2word((C), (I)[0]); \ |
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char2word((C+4), (I)[1]); \ |
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char2word((C+8), (I)[2]); \ |
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char2word((C+12), (I)[3]) |
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# define WORD2CHAR(I, C) \ |
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word2char((I)[0], (C)); \ |
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word2char((I)[1], (C+4)); \ |
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word2char((I)[2], (C+8)); \ |
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word2char((I)[3], (C+12)) |
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# define E_SEED(T0, T1, X1, X2, X3, X4, rbase) \ |
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(T0) = (X3) ^ (ks->data)[(rbase)]; \ |
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(T1) = (X4) ^ (ks->data)[(rbase)+1]; \ |
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(T1) ^= (T0); \ |
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(T1) = G_FUNC((T1)); \ |
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(T0) = ((T0) + (T1)) & 0xffffffff; \ |
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(T0) = G_FUNC((T0)); \ |
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(T1) = ((T1) + (T0)) & 0xffffffff; \ |
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(T1) = G_FUNC((T1)); \ |
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(T0) = ((T0) + (T1)) & 0xffffffff; \ |
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(X1) ^= (T0); \ |
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(X2) ^= (T1) |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif /* HEADER_SEED_LOCL_H */
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