source: EcnlProtoTool/trunk/openssl-1.1.0e/crypto/des/des_locl.h@ 331

Last change on this file since 331 was 331, checked in by coas-nagasima, 6 years ago

prototoolに関連するプロジェクトをnewlibからmuslを使うよう変更・更新
ntshellをnewlibの下位の実装から、muslのsyscallの実装に変更・更新
以下のOSSをアップデート
・mruby-1.3.0
・musl-1.1.18
・onigmo-6.1.3
・tcc-0.9.27
以下のOSSを追加
・openssl-1.1.0e
・curl-7.57.0
・zlib-1.2.11
以下のmrbgemsを追加
・iij/mruby-digest
・iij/mruby-env
・iij/mruby-errno
・iij/mruby-iijson
・iij/mruby-ipaddr
・iij/mruby-mock
・iij/mruby-require
・iij/mruby-tls-openssl
  • Property svn:eol-style set to native
  • Property svn:mime-type set to text/x-chdr
File size: 8.1 KB
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1/*
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#ifndef HEADER_DES_LOCL_H
11# define HEADER_DES_LOCL_H
12
13# include <openssl/e_os2.h>
14
15# include <stdio.h>
16# include <stdlib.h>
17# include <string.h>
18
19# include <openssl/des.h>
20
21# ifdef OPENSSL_BUILD_SHLIBCRYPTO
22# undef OPENSSL_EXTERN
23# define OPENSSL_EXTERN OPENSSL_EXPORT
24# endif
25
26# define ITERATIONS 16
27# define HALF_ITERATIONS 8
28
29/* used in des_read and des_write */
30# define MAXWRITE (1024*16)
31# define BSIZE (MAXWRITE+4)
32
33# define c2l(c,l) (l =((DES_LONG)(*((c)++))) , \
34 l|=((DES_LONG)(*((c)++)))<< 8L, \
35 l|=((DES_LONG)(*((c)++)))<<16L, \
36 l|=((DES_LONG)(*((c)++)))<<24L)
37
38/* NOTE - c is not incremented as per c2l */
39# define c2ln(c,l1,l2,n) { \
40 c+=n; \
41 l1=l2=0; \
42 switch (n) { \
43 case 8: l2 =((DES_LONG)(*(--(c))))<<24L; \
44 case 7: l2|=((DES_LONG)(*(--(c))))<<16L; \
45 case 6: l2|=((DES_LONG)(*(--(c))))<< 8L; \
46 case 5: l2|=((DES_LONG)(*(--(c)))); \
47 case 4: l1 =((DES_LONG)(*(--(c))))<<24L; \
48 case 3: l1|=((DES_LONG)(*(--(c))))<<16L; \
49 case 2: l1|=((DES_LONG)(*(--(c))))<< 8L; \
50 case 1: l1|=((DES_LONG)(*(--(c)))); \
51 } \
52 }
53
54# define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
55 *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \
56 *((c)++)=(unsigned char)(((l)>>16L)&0xff), \
57 *((c)++)=(unsigned char)(((l)>>24L)&0xff))
58
59/*
60 * replacements for htonl and ntohl since I have no idea what to do when
61 * faced with machines with 8 byte longs.
62 */
63# define HDRSIZE 4
64
65# define n2l(c,l) (l =((DES_LONG)(*((c)++)))<<24L, \
66 l|=((DES_LONG)(*((c)++)))<<16L, \
67 l|=((DES_LONG)(*((c)++)))<< 8L, \
68 l|=((DES_LONG)(*((c)++))))
69
70# define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24L)&0xff), \
71 *((c)++)=(unsigned char)(((l)>>16L)&0xff), \
72 *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \
73 *((c)++)=(unsigned char)(((l) )&0xff))
74
75/* NOTE - c is not incremented as per l2c */
76# define l2cn(l1,l2,c,n) { \
77 c+=n; \
78 switch (n) { \
79 case 8: *(--(c))=(unsigned char)(((l2)>>24L)&0xff); \
80 case 7: *(--(c))=(unsigned char)(((l2)>>16L)&0xff); \
81 case 6: *(--(c))=(unsigned char)(((l2)>> 8L)&0xff); \
82 case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \
83 case 4: *(--(c))=(unsigned char)(((l1)>>24L)&0xff); \
84 case 3: *(--(c))=(unsigned char)(((l1)>>16L)&0xff); \
85 case 2: *(--(c))=(unsigned char)(((l1)>> 8L)&0xff); \
86 case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \
87 } \
88 }
89
90# if (defined(OPENSSL_SYS_WIN32) && defined(_MSC_VER))
91# define ROTATE(a,n) (_lrotr(a,n))
92# elif defined(__ICC)
93# define ROTATE(a,n) (_rotr(a,n))
94# elif defined(__GNUC__) && __GNUC__>=2 && !defined(__STRICT_ANSI__) && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM) && !defined(PEDANTIC)
95# if defined(__i386) || defined(__i386__) || defined(__x86_64) || defined(__x86_64__)
96# define ROTATE(a,n) ({ register unsigned int ret; \
97 asm ("rorl %1,%0" \
98 : "=r"(ret) \
99 : "I"(n),"0"(a) \
100 : "cc"); \
101 ret; \
102 })
103# endif
104# endif
105# ifndef ROTATE
106# define ROTATE(a,n) (((a)>>(n))+((a)<<(32-(n))))
107# endif
108
109/*
110 * Don't worry about the LOAD_DATA() stuff, that is used by fcrypt() to add
111 * it's little bit to the front
112 */
113
114# ifdef DES_FCRYPT
115
116# define LOAD_DATA_tmp(R,S,u,t,E0,E1) \
117 { DES_LONG tmp; LOAD_DATA(R,S,u,t,E0,E1,tmp); }
118
119# define LOAD_DATA(R,S,u,t,E0,E1,tmp) \
120 t=R^(R>>16L); \
121 u=t&E0; t&=E1; \
122 tmp=(u<<16); u^=R^s[S ]; u^=tmp; \
123 tmp=(t<<16); t^=R^s[S+1]; t^=tmp
124# else
125# define LOAD_DATA_tmp(a,b,c,d,e,f) LOAD_DATA(a,b,c,d,e,f,g)
126# define LOAD_DATA(R,S,u,t,E0,E1,tmp) \
127 u=R^s[S ]; \
128 t=R^s[S+1]
129# endif
130
131/*
132 * It recently occurred to me that 0^0^0^0^0^0^0 == 0, so there is no reason
133 * to not xor all the sub items together. This potentially saves a register
134 * since things can be xored directly into L
135 */
136
137# define D_ENCRYPT(LL,R,S) { \
138 LOAD_DATA_tmp(R,S,u,t,E0,E1); \
139 t=ROTATE(t,4); \
140 LL^= \
141 DES_SPtrans[0][(u>> 2L)&0x3f]^ \
142 DES_SPtrans[2][(u>>10L)&0x3f]^ \
143 DES_SPtrans[4][(u>>18L)&0x3f]^ \
144 DES_SPtrans[6][(u>>26L)&0x3f]^ \
145 DES_SPtrans[1][(t>> 2L)&0x3f]^ \
146 DES_SPtrans[3][(t>>10L)&0x3f]^ \
147 DES_SPtrans[5][(t>>18L)&0x3f]^ \
148 DES_SPtrans[7][(t>>26L)&0x3f]; }
149
150 /*-
151 * IP and FP
152 * The problem is more of a geometric problem that random bit fiddling.
153 0 1 2 3 4 5 6 7 62 54 46 38 30 22 14 6
154 8 9 10 11 12 13 14 15 60 52 44 36 28 20 12 4
155 16 17 18 19 20 21 22 23 58 50 42 34 26 18 10 2
156 24 25 26 27 28 29 30 31 to 56 48 40 32 24 16 8 0
157
158 32 33 34 35 36 37 38 39 63 55 47 39 31 23 15 7
159 40 41 42 43 44 45 46 47 61 53 45 37 29 21 13 5
160 48 49 50 51 52 53 54 55 59 51 43 35 27 19 11 3
161 56 57 58 59 60 61 62 63 57 49 41 33 25 17 9 1
162
163 The output has been subject to swaps of the form
164 0 1 -> 3 1 but the odd and even bits have been put into
165 2 3 2 0
166 different words. The main trick is to remember that
167 t=((l>>size)^r)&(mask);
168 r^=t;
169 l^=(t<<size);
170 can be used to swap and move bits between words.
171
172 So l = 0 1 2 3 r = 16 17 18 19
173 4 5 6 7 20 21 22 23
174 8 9 10 11 24 25 26 27
175 12 13 14 15 28 29 30 31
176 becomes (for size == 2 and mask == 0x3333)
177 t = 2^16 3^17 -- -- l = 0 1 16 17 r = 2 3 18 19
178 6^20 7^21 -- -- 4 5 20 21 6 7 22 23
179 10^24 11^25 -- -- 8 9 24 25 10 11 24 25
180 14^28 15^29 -- -- 12 13 28 29 14 15 28 29
181
182 Thanks for hints from Richard Outerbridge - he told me IP&FP
183 could be done in 15 xor, 10 shifts and 5 ands.
184 When I finally started to think of the problem in 2D
185 I first got ~42 operations without xors. When I remembered
186 how to use xors :-) I got it to its final state.
187 */
188# define PERM_OP(a,b,t,n,m) ((t)=((((a)>>(n))^(b))&(m)),\
189 (b)^=(t),\
190 (a)^=((t)<<(n)))
191
192# define IP(l,r) \
193 { \
194 register DES_LONG tt; \
195 PERM_OP(r,l,tt, 4,0x0f0f0f0fL); \
196 PERM_OP(l,r,tt,16,0x0000ffffL); \
197 PERM_OP(r,l,tt, 2,0x33333333L); \
198 PERM_OP(l,r,tt, 8,0x00ff00ffL); \
199 PERM_OP(r,l,tt, 1,0x55555555L); \
200 }
201
202# define FP(l,r) \
203 { \
204 register DES_LONG tt; \
205 PERM_OP(l,r,tt, 1,0x55555555L); \
206 PERM_OP(r,l,tt, 8,0x00ff00ffL); \
207 PERM_OP(l,r,tt, 2,0x33333333L); \
208 PERM_OP(r,l,tt,16,0x0000ffffL); \
209 PERM_OP(l,r,tt, 4,0x0f0f0f0fL); \
210 }
211
212extern const DES_LONG DES_SPtrans[8][64];
213
214void fcrypt_body(DES_LONG *out, DES_key_schedule *ks,
215 DES_LONG Eswap0, DES_LONG Eswap1);
216
217#endif
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