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1 | /* -*-c-*- |
2 | * |
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3 | * $Id: serpent-sbox.h,v 1.2 2004/04/08 01:36:15 mdw Exp $ |
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4 | * |
5 | * Bitslice S-box implementations |
6 | * |
7 | * (c) 2000 Straylight/Edgeware |
8 | */ |
9 | |
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10 | /*----- Licensing notice --------------------------------------------------* |
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11 | * |
12 | * This file is part of Catacomb. |
13 | * |
14 | * Catacomb is free software; you can redistribute it and/or modify |
15 | * it under the terms of the GNU Library General Public License as |
16 | * published by the Free Software Foundation; either version 2 of the |
17 | * License, or (at your option) any later version. |
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18 | * |
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19 | * Catacomb is distributed in the hope that it will be useful, |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
22 | * GNU Library General Public License for more details. |
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23 | * |
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24 | * You should have received a copy of the GNU Library General Public |
25 | * License along with Catacomb; if not, write to the Free |
26 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
27 | * MA 02111-1307, USA. |
28 | */ |
29 | |
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30 | /*----- Credit where it's due ---------------------------------------------* |
31 | * |
32 | * These S-box expressions are taken from the paper `Speeding up Serpent', by |
33 | * Dag Arne Osvik, submitted to AES3. |
34 | */ |
35 | |
36 | #ifndef CATACOMB_SERPENT_SBOX_H |
37 | #define CATACOMB_SERPENT_SBOX_H |
38 | |
39 | #ifdef __cplusplus |
40 | extern "C" { |
41 | #endif |
42 | |
43 | /*----- Header files ------------------------------------------------------*/ |
44 | |
45 | #include <mLib/bits.h> |
46 | |
47 | /*----- Macros provided ---------------------------------------------------*/ |
48 | |
49 | /* --- @S0@ --- */ |
50 | |
51 | #define S0(r0, r1, r2, r3) do { \ |
52 | uint32 r4; \ |
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53 | r3 ^= r0; r4 = r1; r1 &= r3; r4 ^= r2; \ |
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54 | r1 ^= r0; r0 |= r3; r0 ^= r4; r4 ^= r3; \ |
55 | r3 ^= r2; r2 |= r1; r2 ^= r4; r4 = ~r4; \ |
56 | r4 |= r1; r1 ^= r3; r1 ^= r4; r3 |= r0; \ |
57 | r1 ^= r3; r4 ^= r3; \ |
58 | r3 = r0; r0 = r1; r1 = r4; \ |
59 | } while (0) |
60 | |
61 | #define IS0(r0, r1, r2, r3) do { \ |
62 | uint32 r4; \ |
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63 | r2 = ~r2; r4 = r1; r1 |= r0; r4 = ~r4; \ |
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64 | r1 ^= r2; r2 |= r4; r1 ^= r3; r0 ^= r4; \ |
65 | r2 ^= r0; r0 &= r3; r4 ^= r0; r0 |= r1; \ |
66 | r0 ^= r2; r3 ^= r4; r2 ^= r1; r3 ^= r0; \ |
67 | r3 ^= r1; r2 &= r3; r4 ^= r2; \ |
68 | r2 = r1; r1 = r4; \ |
69 | } while (0) |
70 | |
71 | /* --- @S1@ --- */ |
72 | |
73 | #define S1(r0, r1, r2, r3) do { \ |
74 | uint32 r4; \ |
75 | r0 = ~r0; r2 = ~r2; r4 = r0; r0 &= r1; \ |
76 | r2 ^= r0; r0 |= r3; r3 ^= r2; r1 ^= r0; \ |
77 | r0 ^= r4; r4 |= r1; r1 ^= r3; r2 |= r0; \ |
78 | r2 &= r4; r0 ^= r1; r1 &= r2; r1 ^= r0; \ |
79 | r0 &= r2; r0 ^= r4; \ |
80 | r4 = r0; r0 = r2; r2 = r3; r3 = r1; r1 = r4; \ |
81 | } while (0) |
82 | |
83 | #define IS1(r0, r1, r2, r3) do { \ |
84 | uint32 r4; \ |
85 | r4 = r1; r1 ^= r3; r3 &= r1; r4 ^= r2; \ |
86 | r3 ^= r0; r0 |= r1; r2 ^= r3; r0 ^= r4; \ |
87 | r0 |= r2; r1 ^= r3; r0 ^= r1; r1 |= r3; \ |
88 | r1 ^= r0; r4 = ~r4; r4 ^= r1; r1 |= r0; \ |
89 | r1 ^= r0; r1 |= r4; r3 ^= r1; \ |
90 | r1 = r0; r0 = r4; r4 = r2; r2 = r3; r3 = r4; \ |
91 | } while (0) |
92 | |
93 | /* --- @S2@ --- */ |
94 | |
95 | #define S2(r0, r1, r2, r3) do { \ |
96 | uint32 r4; \ |
97 | r4 = r0; r0 &= r2; r0 ^= r3; r2 ^= r1; \ |
98 | r2 ^= r0; r3 |= r4; r3 ^= r1; r4 ^= r2; \ |
99 | r1 = r3; r3 |= r4; r3 ^= r0; r0 &= r1; \ |
100 | r4 ^= r0; r1 ^= r3; r1 ^= r4; r4 = ~r4; \ |
101 | r0 = r2; r2 = r1; r1 = r3; r3 = r4; \ |
102 | } while (0) |
103 | |
104 | #define IS2(r0, r1, r2, r3) do { \ |
105 | uint32 r4; \ |
106 | r2 ^= r3; r3 ^= r0; r4 = r3; r3 &= r2; \ |
107 | r3 ^= r1; r1 |= r2; r1 ^= r4; r4 &= r3; \ |
108 | r2 ^= r3; r4 &= r0; r4 ^= r2; r2 &= r1; \ |
109 | r2 |= r0; r3 = ~r3; r2 ^= r3; r0 ^= r3; \ |
110 | r0 &= r1; r3 ^= r4; r3 ^= r0; \ |
111 | r0 = r1; r1 = r4; \ |
112 | } while (0) |
113 | |
114 | /* --- @S3@ --- */ |
115 | |
116 | #define S3(r0, r1, r2, r3) do { \ |
117 | uint32 r4; \ |
118 | r4 = r0; r0 |= r3; r3 ^= r1; r1 &= r4; \ |
119 | r4 ^= r2; r2 ^= r3; r3 &= r0; r4 |= r1; \ |
120 | r3 ^= r4; r0 ^= r1; r4 &= r0; r1 ^= r3; \ |
121 | r4 ^= r2; r1 |= r0; r1 ^= r2; r0 ^= r3; \ |
122 | r2 = r1; r1 |= r3; r1 ^= r0; \ |
123 | r0 = r1; r1 = r2; r2 = r3; r3 = r4; \ |
124 | } while (0) |
125 | |
126 | #define IS3(r0, r1, r2, r3) do { \ |
127 | uint32 r4; \ |
128 | r4 = r2; r2 ^= r1; r0 ^= r2; r4 &= r2; \ |
129 | r4 ^= r0; r0 &= r1; r1 ^= r3; r3 |= r4; \ |
130 | r2 ^= r3; r0 ^= r3; r1 ^= r4; r3 &= r2; \ |
131 | r3 ^= r1; r1 ^= r0; r1 |= r2; r0 ^= r3; \ |
132 | r1 ^= r4; r0 ^= r1; \ |
133 | r4 = r0; r0 = r2; r2 = r3; r3 = r4; \ |
134 | } while (0) |
135 | |
136 | /* --- @S4@ --- */ |
137 | |
138 | #define S4(r0, r1, r2, r3) do { \ |
139 | uint32 r4; \ |
140 | r1 ^= r3; r3 = ~r3; r2 ^= r3; r3 ^= r0; \ |
141 | r4 = r1; r1 &= r3; r1 ^= r2; r4 ^= r3; \ |
142 | r0 ^= r4; r2 &= r4; r2 ^= r0; r0 &= r1; \ |
143 | r3 ^= r0; r4 |= r1; r4 ^= r0; r0 |= r3; \ |
144 | r0 ^= r2; r2 &= r3; r0 = ~r0; r4 ^= r2; \ |
145 | r2 = r0; r0 = r1; r1 = r4; \ |
146 | } while (0) |
147 | |
148 | #define IS4(r0, r1, r2, r3) do { \ |
149 | uint32 r4; \ |
150 | r4 = r2; r2 &= r3; r2 ^= r1; r1 |= r3; \ |
151 | r1 &= r0; r4 ^= r2; r4 ^= r1; r1 &= r2; \ |
152 | r0 = ~r0; r3 ^= r4; r1 ^= r3; r3 &= r0; \ |
153 | r3 ^= r2; r0 ^= r1; r2 &= r0; r3 ^= r0; \ |
154 | r2 ^= r4, r2 |= r3; r3 ^= r0; r2 ^= r1; \ |
155 | r1 = r3; r3 = r4; \ |
156 | } while (0) |
157 | |
158 | /* --- @S5@ --- */ |
159 | |
160 | #define S5(r0, r1, r2, r3) do { \ |
161 | uint32 r4; \ |
162 | r0 ^= r1; r1 ^= r3; r3 = ~r3; r4 = r1; \ |
163 | r1 &= r0; r2 ^= r3; r1 ^= r2; r2 |= r4; \ |
164 | r4 ^= r3; r3 &= r1; r3 ^= r0; r4 ^= r1; \ |
165 | r4 ^= r2; r2 ^= r0; r0 &= r3; r2 = ~r2; \ |
166 | r0 ^= r4; r4 |= r3; r2 ^= r4; \ |
167 | r4 = r3; r3 = r2; r2 = r0; r0 = r1; r1 = r4; \ |
168 | } while (0) |
169 | |
170 | #define IS5(r0, r1, r2, r3) do { \ |
171 | uint32 r4; \ |
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172 | r1 = ~r1; r4 = r3; r2 ^= r1; r3 |= r0; \ |
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173 | r3 ^= r2; r2 |= r1; r2 &= r0; r4 ^= r3; \ |
174 | r2 ^= r4; r4 |= r0; r4 ^= r1; r1 &= r2; \ |
175 | r1 ^= r3; r4 ^= r2; r3 &= r4; r4 ^= r1; \ |
176 | r3 ^= r4; r4 = ~r4; r3 ^= r0; \ |
177 | r0 = r1; r1 = r4; r4 = r3; r3 = r2; r2 = r4; \ |
178 | } while (0) |
179 | |
180 | /* --- @S6@ --- */ |
181 | |
182 | #define S6(r0, r1, r2, r3) do { \ |
183 | uint32 r4; \ |
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184 | r2 = ~r2; r4 = r3; r3 &= r0; r0 ^= r4; \ |
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185 | r3 ^= r2; r2 |= r4; r1 ^= r3; r2 ^= r0; \ |
186 | r0 |= r1; r2 ^= r1; r4 ^= r0; r0 |= r3; \ |
187 | r0 ^= r2; r4 ^= r3; r4 ^= r0; r3 = ~r3; \ |
188 | r2 &= r4; r2 ^= r3; \ |
189 | r3 = r2; r2 = r4; \ |
190 | } while (0) |
191 | |
192 | #define IS6(r0, r1, r2, r3) do { \ |
193 | uint32 r4; \ |
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194 | r0 ^= r2; r4 = r2; r2 &= r0; r4 ^= r3; \ |
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195 | r2 = ~r2; r3 ^= r1; r2 ^= r3; r4 |= r0; \ |
196 | r0 ^= r2; r3 ^= r4; r4 ^= r1; r1 &= r3; \ |
197 | r1 ^= r0; r0 ^= r3; r0 |= r2; r3 ^= r1; \ |
198 | r4 ^= r0; \ |
199 | r0 = r1; r1 = r2; r2 = r4; \ |
200 | } while (0) |
201 | |
202 | /* --- @S7@ --- */ |
203 | |
204 | #define S7(r0, r1, r2, r3) do { \ |
205 | uint32 r4; \ |
206 | r4 = r1; r1 |= r2; r1 ^= r3; r4 ^= r2; \ |
207 | r2 ^= r1; r3 |= r4; r3 &= r0; r4 ^= r2; \ |
208 | r3 ^= r1; r1 |= r4; r1 ^= r0; r0 |= r4; \ |
209 | r0 ^= r2; r1 ^= r4; r2 ^= r1; r1 &= r0; \ |
210 | r1 ^= r4; r2 = ~r2; r2 |= r0; r4 ^= r2; \ |
211 | r2 = r1; r1 = r3; r3 = r0; r0 = r4; \ |
212 | } while (0) |
213 | |
214 | #define IS7(r0, r1, r2, r3) do { \ |
215 | uint32 r4; \ |
216 | r4 = r2; r2 ^= r0; r0 &= r3; r4 |= r3; \ |
217 | r2 = ~r2; r3 ^= r1; r1 |= r0; r0 ^= r2; \ |
218 | r2 &= r4; r3 &= r4; r1 ^= r2; r2 ^= r0; \ |
219 | r0 |= r2; r4 ^= r1; r0 ^= r3; r3 ^= r4; \ |
220 | r4 |= r0; r3 ^= r2; r4 ^= r2; \ |
221 | r2 = r1; r1 = r0; r0 = r3; r3 = r4; \ |
222 | } while (0) |
223 | |
224 | /*----- That's all, folks -------------------------------------------------*/ |
225 | |
226 | #ifdef __cplusplus |
227 | } |
228 | #endif |
229 | |
230 | #endif |