2
* Copyright (c) 2007 KISA(Korea Information Security Agency). All rights reserved.
4
* Redistribution and use in source and binary forms, with or without
5
* modification, are permitted provided that the following conditions
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.
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
26
#ifndef HEADER_SEED_LOCL_H
27
#define HEADER_SEED_LOCL_H
29
#include "openssl/e_os2.h"
30
#include <openssl/seed.h>
33
#ifdef SEED_LONG /* need 32-bit type */
34
typedef unsigned long seed_word;
36
typedef unsigned int seed_word;
45
SS[0][(unsigned char) (v) & 0xff] ^ SS[1][(unsigned char) ((v)>>8) & 0xff] ^ \
46
SS[2][(unsigned char)((v)>>16) & 0xff] ^ SS[3][(unsigned char)((v)>>24) & 0xff]
48
#define char2word(c, i) \
49
(i) = ((((seed_word)(c)[0]) << 24) | (((seed_word)(c)[1]) << 16) | (((seed_word)(c)[2]) << 8) | ((seed_word)(c)[3]))
51
#define word2char(l, c) \
52
*((c)+0) = (unsigned char)((l)>>24) & 0xff; \
53
*((c)+1) = (unsigned char)((l)>>16) & 0xff; \
54
*((c)+2) = (unsigned char)((l)>> 8) & 0xff; \
55
*((c)+3) = (unsigned char)((l)) & 0xff
57
#define KEYSCHEDULE_UPDATE0(T0, T1, X1, X2, X3, X4, KC) \
59
(X3) = (((X3)<<8) ^ ((X4)>>24)) & 0xffffffff; \
60
(X4) = (((X4)<<8) ^ ((T0)>>24)) & 0xffffffff; \
61
(T0) = ((X1) + (X3) - (KC)) & 0xffffffff; \
62
(T1) = ((X2) + (KC) - (X4)) & 0xffffffff
64
#define KEYSCHEDULE_UPDATE1(T0, T1, X1, X2, X3, X4, KC) \
66
(X1) = (((X1)>>8) ^ ((X2)<<24)) & 0xffffffff; \
67
(X2) = (((X2)>>8) ^ ((T0)<<24)) & 0xffffffff; \
68
(T0) = ((X1) + (X3) - (KC)) & 0xffffffff; \
69
(T1) = ((X2) + (KC) - (X4)) & 0xffffffff
71
#define KEYUPDATE_TEMP(T0, T1, K) \
72
(K)[0] = G_FUNC((T0)); \
75
#define XOR_SEEDBLOCK(DST, SRC) \
76
((DST))[0] ^= ((SRC))[0]; \
77
((DST))[1] ^= ((SRC))[1]; \
78
((DST))[2] ^= ((SRC))[2]; \
79
((DST))[3] ^= ((SRC))[3]
81
#define MOV_SEEDBLOCK(DST, SRC) \
82
((DST))[0] = ((SRC))[0]; \
83
((DST))[1] = ((SRC))[1]; \
84
((DST))[2] = ((SRC))[2]; \
85
((DST))[3] = ((SRC))[3]
87
# define CHAR2WORD(C, I) \
88
char2word((C), (I)[0]); \
89
char2word((C+4), (I)[1]); \
90
char2word((C+8), (I)[2]); \
91
char2word((C+12), (I)[3])
93
# define WORD2CHAR(I, C) \
94
word2char((I)[0], (C)); \
95
word2char((I)[1], (C+4)); \
96
word2char((I)[2], (C+8)); \
97
word2char((I)[3], (C+12))
99
# define E_SEED(T0, T1, X1, X2, X3, X4, rbase) \
100
(T0) = (X3) ^ (ks->data)[(rbase)]; \
101
(T1) = (X4) ^ (ks->data)[(rbase)+1]; \
103
(T1) = G_FUNC((T1)); \
104
(T0) = ((T0) + (T1)) & 0xffffffff; \
105
(T0) = G_FUNC((T0)); \
106
(T1) = ((T1) + (T0)) & 0xffffffff; \
107
(T1) = G_FUNC((T1)); \
108
(T0) = ((T0) + (T1)) & 0xffffffff; \
116
#endif /* HEADER_SEED_LOCL_H */