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b9feae1b AP |
1 | /* |
2 | * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved. | |
3 | * | |
a598ed0d | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
b9feae1b AP |
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 | ||
74a011eb | 10 | #include <openssl/e_os2.h> |
b9feae1b AP |
11 | #include <string.h> |
12 | #include <assert.h> | |
13 | ||
c363ce55 AP |
14 | size_t SHA3_absorb(uint64_t A[5][5], const unsigned char *inp, size_t len, |
15 | size_t r); | |
16 | void SHA3_squeeze(uint64_t A[5][5], unsigned char *out, size_t len, size_t r); | |
17 | ||
5d010e3f AP |
18 | #if !defined(KECCAK1600_ASM) || !defined(SELFTEST) |
19 | ||
20 | /* | |
21 | * Choose some sensible defaults | |
22 | */ | |
23 | #if !defined(KECCAK_REF) && !defined(KECCAK_1X) && !defined(KECCAK_1X_ALT) && \ | |
24 | !defined(KECCAK_2X) && !defined(KECCAK_INPLACE) | |
25 | # define KECCAK_2X /* default to KECCAK_2X variant */ | |
26 | #endif | |
27 | ||
7dec815e AP |
28 | #if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \ |
29 | (defined(__x86_64) && !defined(__BMI__)) || defined(_M_X64) || \ | |
30 | defined(__mips) || defined(__riscv) || defined(__s390__) || \ | |
31 | defined(__EMSCRIPTEN__) | |
32 | /* | |
33 | * These don't have "and with complement" instruction, so minimize amount | |
34 | * of "not"-s. Implemented only in the [default] KECCAK_2X variant. | |
35 | */ | |
5d010e3f AP |
36 | # define KECCAK_COMPLEMENTING_TRANSFORM |
37 | #endif | |
71dd3b64 | 38 | |
13603583 AP |
39 | #if defined(__x86_64__) || defined(__aarch64__) || \ |
40 | defined(__mips64) || defined(__ia64) || \ | |
41 | (defined(__VMS) && !defined(__vax)) | |
42 | /* | |
43 | * These are available even in ILP32 flavours, but even then they are | |
44 | * capable of performing 64-bit operations as efficiently as in *P64. | |
45 | * Since it's not given that we can use sizeof(void *), just shunt it. | |
46 | */ | |
47 | # define BIT_INTERLEAVE (0) | |
48 | #else | |
49 | # define BIT_INTERLEAVE (sizeof(void *) < 8) | |
50 | #endif | |
51 | ||
0dd0be94 AP |
52 | #define ROL32(a, offset) (((a) << (offset)) | ((a) >> ((32 - (offset)) & 31))) |
53 | ||
54 | static uint64_t ROL64(uint64_t val, int offset) | |
55 | { | |
56 | if (offset == 0) { | |
57 | return val; | |
13603583 | 58 | } else if (!BIT_INTERLEAVE) { |
0dd0be94 AP |
59 | return (val << offset) | (val >> (64-offset)); |
60 | } else { | |
61 | uint32_t hi = (uint32_t)(val >> 32), lo = (uint32_t)val; | |
62 | ||
63 | if (offset & 1) { | |
64 | uint32_t tmp = hi; | |
65 | ||
66 | offset >>= 1; | |
67 | hi = ROL32(lo, offset); | |
68 | lo = ROL32(tmp, offset + 1); | |
69 | } else { | |
70 | offset >>= 1; | |
71 | lo = ROL32(lo, offset); | |
72 | hi = ROL32(hi, offset); | |
73 | } | |
74 | ||
75 | return ((uint64_t)hi << 32) | lo; | |
76 | } | |
77 | } | |
78 | ||
79 | static const unsigned char rhotates[5][5] = { | |
80 | { 0, 1, 62, 28, 27 }, | |
81 | { 36, 44, 6, 55, 20 }, | |
82 | { 3, 10, 43, 25, 39 }, | |
83 | { 41, 45, 15, 21, 8 }, | |
84 | { 18, 2, 61, 56, 14 } | |
85 | }; | |
86 | ||
87 | static const uint64_t iotas[] = { | |
98f29466 SL |
88 | BIT_INTERLEAVE ? 0x0000000000000001ULL : 0x0000000000000001ULL, |
89 | BIT_INTERLEAVE ? 0x0000008900000000ULL : 0x0000000000008082ULL, | |
90 | BIT_INTERLEAVE ? 0x8000008b00000000ULL : 0x800000000000808aULL, | |
91 | BIT_INTERLEAVE ? 0x8000808000000000ULL : 0x8000000080008000ULL, | |
92 | BIT_INTERLEAVE ? 0x0000008b00000001ULL : 0x000000000000808bULL, | |
93 | BIT_INTERLEAVE ? 0x0000800000000001ULL : 0x0000000080000001ULL, | |
94 | BIT_INTERLEAVE ? 0x8000808800000001ULL : 0x8000000080008081ULL, | |
95 | BIT_INTERLEAVE ? 0x8000008200000001ULL : 0x8000000000008009ULL, | |
96 | BIT_INTERLEAVE ? 0x0000000b00000000ULL : 0x000000000000008aULL, | |
97 | BIT_INTERLEAVE ? 0x0000000a00000000ULL : 0x0000000000000088ULL, | |
98 | BIT_INTERLEAVE ? 0x0000808200000001ULL : 0x0000000080008009ULL, | |
99 | BIT_INTERLEAVE ? 0x0000800300000000ULL : 0x000000008000000aULL, | |
100 | BIT_INTERLEAVE ? 0x0000808b00000001ULL : 0x000000008000808bULL, | |
101 | BIT_INTERLEAVE ? 0x8000000b00000001ULL : 0x800000000000008bULL, | |
102 | BIT_INTERLEAVE ? 0x8000008a00000001ULL : 0x8000000000008089ULL, | |
103 | BIT_INTERLEAVE ? 0x8000008100000001ULL : 0x8000000000008003ULL, | |
104 | BIT_INTERLEAVE ? 0x8000008100000000ULL : 0x8000000000008002ULL, | |
105 | BIT_INTERLEAVE ? 0x8000000800000000ULL : 0x8000000000000080ULL, | |
106 | BIT_INTERLEAVE ? 0x0000008300000000ULL : 0x000000000000800aULL, | |
107 | BIT_INTERLEAVE ? 0x8000800300000000ULL : 0x800000008000000aULL, | |
108 | BIT_INTERLEAVE ? 0x8000808800000001ULL : 0x8000000080008081ULL, | |
109 | BIT_INTERLEAVE ? 0x8000008800000000ULL : 0x8000000000008080ULL, | |
110 | BIT_INTERLEAVE ? 0x0000800000000001ULL : 0x0000000080000001ULL, | |
111 | BIT_INTERLEAVE ? 0x8000808200000000ULL : 0x8000000080008008ULL | |
0dd0be94 | 112 | }; |
b9feae1b | 113 | |
79dfc3dd AP |
114 | #if defined(KECCAK_REF) |
115 | /* | |
116 | * This is straightforward or "maximum clarity" implementation aiming | |
117 | * to resemble section 3.2 of the FIPS PUB 202 "SHA-3 Standard: | |
118 | * Permutation-Based Hash and Extendible-Output Functions" as much as | |
119 | * possible. With one caveat. Because of the way C stores matrices, | |
120 | * references to A[x,y] in the specification are presented as A[y][x]. | |
121 | * Implementation unrolls inner x-loops so that modulo 5 operations are | |
122 | * explicitly pre-computed. | |
123 | */ | |
b9feae1b AP |
124 | static void Theta(uint64_t A[5][5]) |
125 | { | |
126 | uint64_t C[5], D[5]; | |
127 | size_t y; | |
128 | ||
79dfc3dd AP |
129 | C[0] = A[0][0]; |
130 | C[1] = A[0][1]; | |
131 | C[2] = A[0][2]; | |
132 | C[3] = A[0][3]; | |
133 | C[4] = A[0][4]; | |
134 | ||
135 | for (y = 1; y < 5; y++) { | |
136 | C[0] ^= A[y][0]; | |
137 | C[1] ^= A[y][1]; | |
138 | C[2] ^= A[y][2]; | |
139 | C[3] ^= A[y][3]; | |
140 | C[4] ^= A[y][4]; | |
141 | } | |
b9feae1b AP |
142 | |
143 | D[0] = ROL64(C[1], 1) ^ C[4]; | |
144 | D[1] = ROL64(C[2], 1) ^ C[0]; | |
145 | D[2] = ROL64(C[3], 1) ^ C[1]; | |
146 | D[3] = ROL64(C[4], 1) ^ C[2]; | |
147 | D[4] = ROL64(C[0], 1) ^ C[3]; | |
148 | ||
149 | for (y = 0; y < 5; y++) { | |
150 | A[y][0] ^= D[0]; | |
151 | A[y][1] ^= D[1]; | |
152 | A[y][2] ^= D[2]; | |
153 | A[y][3] ^= D[3]; | |
154 | A[y][4] ^= D[4]; | |
155 | } | |
156 | } | |
157 | ||
158 | static void Rho(uint64_t A[5][5]) | |
159 | { | |
b9feae1b AP |
160 | size_t y; |
161 | ||
162 | for (y = 0; y < 5; y++) { | |
163 | A[y][0] = ROL64(A[y][0], rhotates[y][0]); | |
164 | A[y][1] = ROL64(A[y][1], rhotates[y][1]); | |
165 | A[y][2] = ROL64(A[y][2], rhotates[y][2]); | |
166 | A[y][3] = ROL64(A[y][3], rhotates[y][3]); | |
167 | A[y][4] = ROL64(A[y][4], rhotates[y][4]); | |
168 | } | |
169 | } | |
170 | ||
171 | static void Pi(uint64_t A[5][5]) | |
172 | { | |
173 | uint64_t T[5][5]; | |
174 | ||
175 | /* | |
176 | * T = A | |
177 | * A[y][x] = T[x][(3*y+x)%5] | |
178 | */ | |
179 | memcpy(T, A, sizeof(T)); | |
180 | ||
181 | A[0][0] = T[0][0]; | |
182 | A[0][1] = T[1][1]; | |
183 | A[0][2] = T[2][2]; | |
184 | A[0][3] = T[3][3]; | |
185 | A[0][4] = T[4][4]; | |
186 | ||
187 | A[1][0] = T[0][3]; | |
188 | A[1][1] = T[1][4]; | |
189 | A[1][2] = T[2][0]; | |
190 | A[1][3] = T[3][1]; | |
191 | A[1][4] = T[4][2]; | |
192 | ||
193 | A[2][0] = T[0][1]; | |
194 | A[2][1] = T[1][2]; | |
195 | A[2][2] = T[2][3]; | |
196 | A[2][3] = T[3][4]; | |
197 | A[2][4] = T[4][0]; | |
198 | ||
199 | A[3][0] = T[0][4]; | |
200 | A[3][1] = T[1][0]; | |
201 | A[3][2] = T[2][1]; | |
202 | A[3][3] = T[3][2]; | |
203 | A[3][4] = T[4][3]; | |
204 | ||
205 | A[4][0] = T[0][2]; | |
206 | A[4][1] = T[1][3]; | |
207 | A[4][2] = T[2][4]; | |
208 | A[4][3] = T[3][0]; | |
209 | A[4][4] = T[4][1]; | |
210 | } | |
211 | ||
212 | static void Chi(uint64_t A[5][5]) | |
213 | { | |
214 | uint64_t C[5]; | |
215 | size_t y; | |
216 | ||
217 | for (y = 0; y < 5; y++) { | |
218 | C[0] = A[y][0] ^ (~A[y][1] & A[y][2]); | |
219 | C[1] = A[y][1] ^ (~A[y][2] & A[y][3]); | |
220 | C[2] = A[y][2] ^ (~A[y][3] & A[y][4]); | |
221 | C[3] = A[y][3] ^ (~A[y][4] & A[y][0]); | |
222 | C[4] = A[y][4] ^ (~A[y][0] & A[y][1]); | |
223 | ||
224 | A[y][0] = C[0]; | |
225 | A[y][1] = C[1]; | |
226 | A[y][2] = C[2]; | |
227 | A[y][3] = C[3]; | |
228 | A[y][4] = C[4]; | |
229 | } | |
230 | } | |
231 | ||
232 | static void Iota(uint64_t A[5][5], size_t i) | |
233 | { | |
b9feae1b AP |
234 | assert(i < (sizeof(iotas) / sizeof(iotas[0]))); |
235 | A[0][0] ^= iotas[i]; | |
236 | } | |
237 | ||
b4f2a462 | 238 | static void KeccakF1600(uint64_t A[5][5]) |
b9feae1b AP |
239 | { |
240 | size_t i; | |
241 | ||
242 | for (i = 0; i < 24; i++) { | |
243 | Theta(A); | |
244 | Rho(A); | |
245 | Pi(A); | |
246 | Chi(A); | |
247 | Iota(A, i); | |
248 | } | |
249 | } | |
250 | ||
79dfc3dd AP |
251 | #elif defined(KECCAK_1X) |
252 | /* | |
253 | * This implementation is optimization of above code featuring unroll | |
254 | * of even y-loops, their fusion and code motion. It also minimizes | |
255 | * temporary storage. Compiler would normally do all these things for | |
256 | * you, purpose of manual optimization is to provide "unobscured" | |
257 | * reference for assembly implementation [in case this approach is | |
258 | * chosen for implementation on some platform]. In the nutshell it's | |
259 | * equivalent of "plane-per-plane processing" approach discussed in | |
260 | * section 2.4 of "Keccak implementation overview". | |
261 | */ | |
262 | static void Round(uint64_t A[5][5], size_t i) | |
263 | { | |
c83a4db5 AP |
264 | uint64_t C[5], E[2]; /* registers */ |
265 | uint64_t D[5], T[2][5]; /* memory */ | |
79dfc3dd AP |
266 | |
267 | assert(i < (sizeof(iotas) / sizeof(iotas[0]))); | |
268 | ||
269 | C[0] = A[0][0] ^ A[1][0] ^ A[2][0] ^ A[3][0] ^ A[4][0]; | |
270 | C[1] = A[0][1] ^ A[1][1] ^ A[2][1] ^ A[3][1] ^ A[4][1]; | |
271 | C[2] = A[0][2] ^ A[1][2] ^ A[2][2] ^ A[3][2] ^ A[4][2]; | |
272 | C[3] = A[0][3] ^ A[1][3] ^ A[2][3] ^ A[3][3] ^ A[4][3]; | |
273 | C[4] = A[0][4] ^ A[1][4] ^ A[2][4] ^ A[3][4] ^ A[4][4]; | |
274 | ||
c83a4db5 AP |
275 | #if defined(__arm__) |
276 | D[1] = E[0] = ROL64(C[2], 1) ^ C[0]; | |
277 | D[4] = E[1] = ROL64(C[0], 1) ^ C[3]; | |
278 | D[0] = C[0] = ROL64(C[1], 1) ^ C[4]; | |
279 | D[2] = C[1] = ROL64(C[3], 1) ^ C[1]; | |
280 | D[3] = C[2] = ROL64(C[4], 1) ^ C[2]; | |
281 | ||
282 | T[0][0] = A[3][0] ^ C[0]; /* borrow T[0][0] */ | |
283 | T[0][1] = A[0][1] ^ E[0]; /* D[1] */ | |
284 | T[0][2] = A[0][2] ^ C[1]; /* D[2] */ | |
285 | T[0][3] = A[0][3] ^ C[2]; /* D[3] */ | |
286 | T[0][4] = A[0][4] ^ E[1]; /* D[4] */ | |
287 | ||
288 | C[3] = ROL64(A[3][3] ^ C[2], rhotates[3][3]); /* D[3] */ | |
289 | C[4] = ROL64(A[4][4] ^ E[1], rhotates[4][4]); /* D[4] */ | |
290 | C[0] = A[0][0] ^ C[0]; /* rotate by 0 */ /* D[0] */ | |
291 | C[2] = ROL64(A[2][2] ^ C[1], rhotates[2][2]); /* D[2] */ | |
292 | C[1] = ROL64(A[1][1] ^ E[0], rhotates[1][1]); /* D[1] */ | |
293 | #else | |
79dfc3dd AP |
294 | D[0] = ROL64(C[1], 1) ^ C[4]; |
295 | D[1] = ROL64(C[2], 1) ^ C[0]; | |
296 | D[2] = ROL64(C[3], 1) ^ C[1]; | |
297 | D[3] = ROL64(C[4], 1) ^ C[2]; | |
298 | D[4] = ROL64(C[0], 1) ^ C[3]; | |
299 | ||
79dfc3dd AP |
300 | T[0][0] = A[3][0] ^ D[0]; /* borrow T[0][0] */ |
301 | T[0][1] = A[0][1] ^ D[1]; | |
302 | T[0][2] = A[0][2] ^ D[2]; | |
303 | T[0][3] = A[0][3] ^ D[3]; | |
304 | T[0][4] = A[0][4] ^ D[4]; | |
305 | ||
c83a4db5 AP |
306 | C[0] = A[0][0] ^ D[0]; /* rotate by 0 */ |
307 | C[1] = ROL64(A[1][1] ^ D[1], rhotates[1][1]); | |
308 | C[2] = ROL64(A[2][2] ^ D[2], rhotates[2][2]); | |
309 | C[3] = ROL64(A[3][3] ^ D[3], rhotates[3][3]); | |
310 | C[4] = ROL64(A[4][4] ^ D[4], rhotates[4][4]); | |
311 | #endif | |
79dfc3dd AP |
312 | A[0][0] = C[0] ^ (~C[1] & C[2]) ^ iotas[i]; |
313 | A[0][1] = C[1] ^ (~C[2] & C[3]); | |
314 | A[0][2] = C[2] ^ (~C[3] & C[4]); | |
315 | A[0][3] = C[3] ^ (~C[4] & C[0]); | |
316 | A[0][4] = C[4] ^ (~C[0] & C[1]); | |
317 | ||
c83a4db5 AP |
318 | T[1][0] = A[1][0] ^ (C[3] = D[0]); |
319 | T[1][1] = A[2][1] ^ (C[4] = D[1]); /* borrow T[1][1] */ | |
320 | T[1][2] = A[1][2] ^ (E[0] = D[2]); | |
321 | T[1][3] = A[1][3] ^ (E[1] = D[3]); | |
322 | T[1][4] = A[2][4] ^ (C[2] = D[4]); /* borrow T[1][4] */ | |
79dfc3dd | 323 | |
c83a4db5 AP |
324 | C[0] = ROL64(T[0][3], rhotates[0][3]); |
325 | C[1] = ROL64(A[1][4] ^ C[2], rhotates[1][4]); /* D[4] */ | |
326 | C[2] = ROL64(A[2][0] ^ C[3], rhotates[2][0]); /* D[0] */ | |
327 | C[3] = ROL64(A[3][1] ^ C[4], rhotates[3][1]); /* D[1] */ | |
328 | C[4] = ROL64(A[4][2] ^ E[0], rhotates[4][2]); /* D[2] */ | |
79dfc3dd AP |
329 | |
330 | A[1][0] = C[0] ^ (~C[1] & C[2]); | |
331 | A[1][1] = C[1] ^ (~C[2] & C[3]); | |
332 | A[1][2] = C[2] ^ (~C[3] & C[4]); | |
333 | A[1][3] = C[3] ^ (~C[4] & C[0]); | |
334 | A[1][4] = C[4] ^ (~C[0] & C[1]); | |
335 | ||
336 | C[0] = ROL64(T[0][1], rhotates[0][1]); | |
337 | C[1] = ROL64(T[1][2], rhotates[1][2]); | |
338 | C[2] = ROL64(A[2][3] ^ D[3], rhotates[2][3]); | |
339 | C[3] = ROL64(A[3][4] ^ D[4], rhotates[3][4]); | |
340 | C[4] = ROL64(A[4][0] ^ D[0], rhotates[4][0]); | |
341 | ||
342 | A[2][0] = C[0] ^ (~C[1] & C[2]); | |
343 | A[2][1] = C[1] ^ (~C[2] & C[3]); | |
344 | A[2][2] = C[2] ^ (~C[3] & C[4]); | |
345 | A[2][3] = C[3] ^ (~C[4] & C[0]); | |
346 | A[2][4] = C[4] ^ (~C[0] & C[1]); | |
347 | ||
348 | C[0] = ROL64(T[0][4], rhotates[0][4]); | |
349 | C[1] = ROL64(T[1][0], rhotates[1][0]); | |
350 | C[2] = ROL64(T[1][1], rhotates[2][1]); /* originally A[2][1] */ | |
351 | C[3] = ROL64(A[3][2] ^ D[2], rhotates[3][2]); | |
352 | C[4] = ROL64(A[4][3] ^ D[3], rhotates[4][3]); | |
353 | ||
354 | A[3][0] = C[0] ^ (~C[1] & C[2]); | |
355 | A[3][1] = C[1] ^ (~C[2] & C[3]); | |
356 | A[3][2] = C[2] ^ (~C[3] & C[4]); | |
357 | A[3][3] = C[3] ^ (~C[4] & C[0]); | |
358 | A[3][4] = C[4] ^ (~C[0] & C[1]); | |
359 | ||
360 | C[0] = ROL64(T[0][2], rhotates[0][2]); | |
361 | C[1] = ROL64(T[1][3], rhotates[1][3]); | |
362 | C[2] = ROL64(T[1][4], rhotates[2][4]); /* originally A[2][4] */ | |
363 | C[3] = ROL64(T[0][0], rhotates[3][0]); /* originally A[3][0] */ | |
364 | C[4] = ROL64(A[4][1] ^ D[1], rhotates[4][1]); | |
365 | ||
366 | A[4][0] = C[0] ^ (~C[1] & C[2]); | |
367 | A[4][1] = C[1] ^ (~C[2] & C[3]); | |
368 | A[4][2] = C[2] ^ (~C[3] & C[4]); | |
369 | A[4][3] = C[3] ^ (~C[4] & C[0]); | |
370 | A[4][4] = C[4] ^ (~C[0] & C[1]); | |
371 | } | |
372 | ||
b4f2a462 | 373 | static void KeccakF1600(uint64_t A[5][5]) |
79dfc3dd AP |
374 | { |
375 | size_t i; | |
376 | ||
377 | for (i = 0; i < 24; i++) { | |
378 | Round(A, i); | |
379 | } | |
380 | } | |
381 | ||
1ded2dd3 AP |
382 | #elif defined(KECCAK_1X_ALT) |
383 | /* | |
22f9fa6e AP |
384 | * This is variant of above KECCAK_1X that reduces requirement for |
385 | * temporary storage even further, but at cost of more updates to A[][]. | |
386 | * It's less suitable if A[][] is memory bound, but better if it's | |
1ded2dd3 AP |
387 | * register bound. |
388 | */ | |
389 | ||
390 | static void Round(uint64_t A[5][5], size_t i) | |
391 | { | |
392 | uint64_t C[5], D[5]; | |
393 | ||
394 | assert(i < (sizeof(iotas) / sizeof(iotas[0]))); | |
395 | ||
396 | C[0] = A[0][0] ^ A[1][0] ^ A[2][0] ^ A[3][0] ^ A[4][0]; | |
397 | C[1] = A[0][1] ^ A[1][1] ^ A[2][1] ^ A[3][1] ^ A[4][1]; | |
398 | C[2] = A[0][2] ^ A[1][2] ^ A[2][2] ^ A[3][2] ^ A[4][2]; | |
399 | C[3] = A[0][3] ^ A[1][3] ^ A[2][3] ^ A[3][3] ^ A[4][3]; | |
400 | C[4] = A[0][4] ^ A[1][4] ^ A[2][4] ^ A[3][4] ^ A[4][4]; | |
401 | ||
22f9fa6e AP |
402 | D[1] = C[0] ^ ROL64(C[2], 1); |
403 | D[2] = C[1] ^ ROL64(C[3], 1); | |
404 | D[3] = C[2] ^= ROL64(C[4], 1); | |
405 | D[4] = C[3] ^= ROL64(C[0], 1); | |
406 | D[0] = C[4] ^= ROL64(C[1], 1); | |
1ded2dd3 | 407 | |
1ded2dd3 AP |
408 | A[0][1] ^= D[1]; |
409 | A[1][1] ^= D[1]; | |
410 | A[2][1] ^= D[1]; | |
411 | A[3][1] ^= D[1]; | |
412 | A[4][1] ^= D[1]; | |
413 | ||
1ded2dd3 AP |
414 | A[0][2] ^= D[2]; |
415 | A[1][2] ^= D[2]; | |
416 | A[2][2] ^= D[2]; | |
417 | A[3][2] ^= D[2]; | |
418 | A[4][2] ^= D[2]; | |
419 | ||
22f9fa6e AP |
420 | A[0][3] ^= C[2]; |
421 | A[1][3] ^= C[2]; | |
422 | A[2][3] ^= C[2]; | |
423 | A[3][3] ^= C[2]; | |
424 | A[4][3] ^= C[2]; | |
1ded2dd3 | 425 | |
22f9fa6e AP |
426 | A[0][4] ^= C[3]; |
427 | A[1][4] ^= C[3]; | |
428 | A[2][4] ^= C[3]; | |
429 | A[3][4] ^= C[3]; | |
430 | A[4][4] ^= C[3]; | |
431 | ||
432 | A[0][0] ^= C[4]; | |
433 | A[1][0] ^= C[4]; | |
434 | A[2][0] ^= C[4]; | |
435 | A[3][0] ^= C[4]; | |
436 | A[4][0] ^= C[4]; | |
1ded2dd3 AP |
437 | |
438 | C[1] = A[0][1]; | |
439 | C[2] = A[0][2]; | |
440 | C[3] = A[0][3]; | |
441 | C[4] = A[0][4]; | |
442 | ||
443 | A[0][1] = ROL64(A[1][1], rhotates[1][1]); | |
444 | A[0][2] = ROL64(A[2][2], rhotates[2][2]); | |
445 | A[0][3] = ROL64(A[3][3], rhotates[3][3]); | |
446 | A[0][4] = ROL64(A[4][4], rhotates[4][4]); | |
447 | ||
448 | A[1][1] = ROL64(A[1][4], rhotates[1][4]); | |
449 | A[2][2] = ROL64(A[2][3], rhotates[2][3]); | |
450 | A[3][3] = ROL64(A[3][2], rhotates[3][2]); | |
451 | A[4][4] = ROL64(A[4][1], rhotates[4][1]); | |
452 | ||
453 | A[1][4] = ROL64(A[4][2], rhotates[4][2]); | |
454 | A[2][3] = ROL64(A[3][4], rhotates[3][4]); | |
455 | A[3][2] = ROL64(A[2][1], rhotates[2][1]); | |
456 | A[4][1] = ROL64(A[1][3], rhotates[1][3]); | |
457 | ||
458 | A[4][2] = ROL64(A[2][4], rhotates[2][4]); | |
459 | A[3][4] = ROL64(A[4][3], rhotates[4][3]); | |
460 | A[2][1] = ROL64(A[1][2], rhotates[1][2]); | |
461 | A[1][3] = ROL64(A[3][1], rhotates[3][1]); | |
462 | ||
463 | A[2][4] = ROL64(A[4][0], rhotates[4][0]); | |
464 | A[4][3] = ROL64(A[3][0], rhotates[3][0]); | |
465 | A[1][2] = ROL64(A[2][0], rhotates[2][0]); | |
466 | A[3][1] = ROL64(A[1][0], rhotates[1][0]); | |
467 | ||
468 | A[1][0] = ROL64(C[3], rhotates[0][3]); | |
469 | A[2][0] = ROL64(C[1], rhotates[0][1]); | |
470 | A[3][0] = ROL64(C[4], rhotates[0][4]); | |
471 | A[4][0] = ROL64(C[2], rhotates[0][2]); | |
472 | ||
473 | C[0] = A[0][0]; | |
474 | C[1] = A[1][0]; | |
1ded2dd3 AP |
475 | D[0] = A[0][1]; |
476 | D[1] = A[1][1]; | |
1ded2dd3 AP |
477 | |
478 | A[0][0] ^= (~A[0][1] & A[0][2]); | |
479 | A[1][0] ^= (~A[1][1] & A[1][2]); | |
1ded2dd3 AP |
480 | A[0][1] ^= (~A[0][2] & A[0][3]); |
481 | A[1][1] ^= (~A[1][2] & A[1][3]); | |
1ded2dd3 AP |
482 | A[0][2] ^= (~A[0][3] & A[0][4]); |
483 | A[1][2] ^= (~A[1][3] & A[1][4]); | |
1ded2dd3 AP |
484 | A[0][3] ^= (~A[0][4] & C[0]); |
485 | A[1][3] ^= (~A[1][4] & C[1]); | |
1ded2dd3 AP |
486 | A[0][4] ^= (~C[0] & D[0]); |
487 | A[1][4] ^= (~C[1] & D[1]); | |
22f9fa6e AP |
488 | |
489 | C[2] = A[2][0]; | |
490 | C[3] = A[3][0]; | |
491 | D[2] = A[2][1]; | |
492 | D[3] = A[3][1]; | |
493 | ||
494 | A[2][0] ^= (~A[2][1] & A[2][2]); | |
495 | A[3][0] ^= (~A[3][1] & A[3][2]); | |
496 | A[2][1] ^= (~A[2][2] & A[2][3]); | |
497 | A[3][1] ^= (~A[3][2] & A[3][3]); | |
498 | A[2][2] ^= (~A[2][3] & A[2][4]); | |
499 | A[3][2] ^= (~A[3][3] & A[3][4]); | |
500 | A[2][3] ^= (~A[2][4] & C[2]); | |
501 | A[3][3] ^= (~A[3][4] & C[3]); | |
1ded2dd3 AP |
502 | A[2][4] ^= (~C[2] & D[2]); |
503 | A[3][4] ^= (~C[3] & D[3]); | |
1ded2dd3 | 504 | |
22f9fa6e AP |
505 | C[4] = A[4][0]; |
506 | D[4] = A[4][1]; | |
507 | ||
508 | A[4][0] ^= (~A[4][1] & A[4][2]); | |
509 | A[4][1] ^= (~A[4][2] & A[4][3]); | |
510 | A[4][2] ^= (~A[4][3] & A[4][4]); | |
511 | A[4][3] ^= (~A[4][4] & C[4]); | |
512 | A[4][4] ^= (~C[4] & D[4]); | |
1ded2dd3 AP |
513 | A[0][0] ^= iotas[i]; |
514 | } | |
515 | ||
b4f2a462 | 516 | static void KeccakF1600(uint64_t A[5][5]) |
1ded2dd3 AP |
517 | { |
518 | size_t i; | |
519 | ||
520 | for (i = 0; i < 24; i++) { | |
521 | Round(A, i); | |
522 | } | |
523 | } | |
524 | ||
79dfc3dd AP |
525 | #elif defined(KECCAK_2X) |
526 | /* | |
527 | * This implementation is variant of KECCAK_1X above with outer-most | |
528 | * round loop unrolled twice. This allows to take temporary storage | |
529 | * out of round procedure and simplify references to it by alternating | |
5d010e3f AP |
530 | * it with actual data (see round loop below). Originally it was meant |
531 | * rather as reference for an assembly implementation, but it seems to | |
532 | * play best with compilers [as well as provide best instruction per | |
533 | * processed byte ratio at minimal round unroll factor]... | |
79dfc3dd AP |
534 | */ |
535 | static void Round(uint64_t R[5][5], uint64_t A[5][5], size_t i) | |
536 | { | |
537 | uint64_t C[5], D[5]; | |
79dfc3dd AP |
538 | |
539 | assert(i < (sizeof(iotas) / sizeof(iotas[0]))); | |
540 | ||
541 | C[0] = A[0][0] ^ A[1][0] ^ A[2][0] ^ A[3][0] ^ A[4][0]; | |
542 | C[1] = A[0][1] ^ A[1][1] ^ A[2][1] ^ A[3][1] ^ A[4][1]; | |
543 | C[2] = A[0][2] ^ A[1][2] ^ A[2][2] ^ A[3][2] ^ A[4][2]; | |
544 | C[3] = A[0][3] ^ A[1][3] ^ A[2][3] ^ A[3][3] ^ A[4][3]; | |
545 | C[4] = A[0][4] ^ A[1][4] ^ A[2][4] ^ A[3][4] ^ A[4][4]; | |
546 | ||
547 | D[0] = ROL64(C[1], 1) ^ C[4]; | |
548 | D[1] = ROL64(C[2], 1) ^ C[0]; | |
549 | D[2] = ROL64(C[3], 1) ^ C[1]; | |
550 | D[3] = ROL64(C[4], 1) ^ C[2]; | |
551 | D[4] = ROL64(C[0], 1) ^ C[3]; | |
552 | ||
553 | C[0] = A[0][0] ^ D[0]; /* rotate by 0 */ | |
554 | C[1] = ROL64(A[1][1] ^ D[1], rhotates[1][1]); | |
555 | C[2] = ROL64(A[2][2] ^ D[2], rhotates[2][2]); | |
556 | C[3] = ROL64(A[3][3] ^ D[3], rhotates[3][3]); | |
557 | C[4] = ROL64(A[4][4] ^ D[4], rhotates[4][4]); | |
558 | ||
1f2aff25 AP |
559 | #ifdef KECCAK_COMPLEMENTING_TRANSFORM |
560 | R[0][0] = C[0] ^ ( C[1] | C[2]) ^ iotas[i]; | |
561 | R[0][1] = C[1] ^ (~C[2] | C[3]); | |
562 | R[0][2] = C[2] ^ ( C[3] & C[4]); | |
563 | R[0][3] = C[3] ^ ( C[4] | C[0]); | |
564 | R[0][4] = C[4] ^ ( C[0] & C[1]); | |
565 | #else | |
79dfc3dd AP |
566 | R[0][0] = C[0] ^ (~C[1] & C[2]) ^ iotas[i]; |
567 | R[0][1] = C[1] ^ (~C[2] & C[3]); | |
568 | R[0][2] = C[2] ^ (~C[3] & C[4]); | |
569 | R[0][3] = C[3] ^ (~C[4] & C[0]); | |
570 | R[0][4] = C[4] ^ (~C[0] & C[1]); | |
1f2aff25 | 571 | #endif |
79dfc3dd AP |
572 | |
573 | C[0] = ROL64(A[0][3] ^ D[3], rhotates[0][3]); | |
574 | C[1] = ROL64(A[1][4] ^ D[4], rhotates[1][4]); | |
575 | C[2] = ROL64(A[2][0] ^ D[0], rhotates[2][0]); | |
576 | C[3] = ROL64(A[3][1] ^ D[1], rhotates[3][1]); | |
577 | C[4] = ROL64(A[4][2] ^ D[2], rhotates[4][2]); | |
578 | ||
1f2aff25 AP |
579 | #ifdef KECCAK_COMPLEMENTING_TRANSFORM |
580 | R[1][0] = C[0] ^ (C[1] | C[2]); | |
581 | R[1][1] = C[1] ^ (C[2] & C[3]); | |
582 | R[1][2] = C[2] ^ (C[3] | ~C[4]); | |
583 | R[1][3] = C[3] ^ (C[4] | C[0]); | |
584 | R[1][4] = C[4] ^ (C[0] & C[1]); | |
585 | #else | |
79dfc3dd AP |
586 | R[1][0] = C[0] ^ (~C[1] & C[2]); |
587 | R[1][1] = C[1] ^ (~C[2] & C[3]); | |
588 | R[1][2] = C[2] ^ (~C[3] & C[4]); | |
589 | R[1][3] = C[3] ^ (~C[4] & C[0]); | |
590 | R[1][4] = C[4] ^ (~C[0] & C[1]); | |
1f2aff25 | 591 | #endif |
79dfc3dd AP |
592 | |
593 | C[0] = ROL64(A[0][1] ^ D[1], rhotates[0][1]); | |
594 | C[1] = ROL64(A[1][2] ^ D[2], rhotates[1][2]); | |
595 | C[2] = ROL64(A[2][3] ^ D[3], rhotates[2][3]); | |
596 | C[3] = ROL64(A[3][4] ^ D[4], rhotates[3][4]); | |
597 | C[4] = ROL64(A[4][0] ^ D[0], rhotates[4][0]); | |
598 | ||
1f2aff25 AP |
599 | #ifdef KECCAK_COMPLEMENTING_TRANSFORM |
600 | R[2][0] = C[0] ^ ( C[1] | C[2]); | |
601 | R[2][1] = C[1] ^ ( C[2] & C[3]); | |
602 | R[2][2] = C[2] ^ (~C[3] & C[4]); | |
603 | R[2][3] = ~C[3] ^ ( C[4] | C[0]); | |
604 | R[2][4] = C[4] ^ ( C[0] & C[1]); | |
605 | #else | |
79dfc3dd AP |
606 | R[2][0] = C[0] ^ (~C[1] & C[2]); |
607 | R[2][1] = C[1] ^ (~C[2] & C[3]); | |
608 | R[2][2] = C[2] ^ (~C[3] & C[4]); | |
609 | R[2][3] = C[3] ^ (~C[4] & C[0]); | |
610 | R[2][4] = C[4] ^ (~C[0] & C[1]); | |
1f2aff25 | 611 | #endif |
79dfc3dd AP |
612 | |
613 | C[0] = ROL64(A[0][4] ^ D[4], rhotates[0][4]); | |
614 | C[1] = ROL64(A[1][0] ^ D[0], rhotates[1][0]); | |
615 | C[2] = ROL64(A[2][1] ^ D[1], rhotates[2][1]); | |
616 | C[3] = ROL64(A[3][2] ^ D[2], rhotates[3][2]); | |
617 | C[4] = ROL64(A[4][3] ^ D[3], rhotates[4][3]); | |
618 | ||
1f2aff25 AP |
619 | #ifdef KECCAK_COMPLEMENTING_TRANSFORM |
620 | R[3][0] = C[0] ^ ( C[1] & C[2]); | |
621 | R[3][1] = C[1] ^ ( C[2] | C[3]); | |
622 | R[3][2] = C[2] ^ (~C[3] | C[4]); | |
623 | R[3][3] = ~C[3] ^ ( C[4] & C[0]); | |
624 | R[3][4] = C[4] ^ ( C[0] | C[1]); | |
625 | #else | |
79dfc3dd AP |
626 | R[3][0] = C[0] ^ (~C[1] & C[2]); |
627 | R[3][1] = C[1] ^ (~C[2] & C[3]); | |
628 | R[3][2] = C[2] ^ (~C[3] & C[4]); | |
629 | R[3][3] = C[3] ^ (~C[4] & C[0]); | |
630 | R[3][4] = C[4] ^ (~C[0] & C[1]); | |
1f2aff25 | 631 | #endif |
79dfc3dd AP |
632 | |
633 | C[0] = ROL64(A[0][2] ^ D[2], rhotates[0][2]); | |
634 | C[1] = ROL64(A[1][3] ^ D[3], rhotates[1][3]); | |
635 | C[2] = ROL64(A[2][4] ^ D[4], rhotates[2][4]); | |
636 | C[3] = ROL64(A[3][0] ^ D[0], rhotates[3][0]); | |
637 | C[4] = ROL64(A[4][1] ^ D[1], rhotates[4][1]); | |
638 | ||
1f2aff25 AP |
639 | #ifdef KECCAK_COMPLEMENTING_TRANSFORM |
640 | R[4][0] = C[0] ^ (~C[1] & C[2]); | |
641 | R[4][1] = ~C[1] ^ ( C[2] | C[3]); | |
642 | R[4][2] = C[2] ^ ( C[3] & C[4]); | |
643 | R[4][3] = C[3] ^ ( C[4] | C[0]); | |
644 | R[4][4] = C[4] ^ ( C[0] & C[1]); | |
645 | #else | |
79dfc3dd AP |
646 | R[4][0] = C[0] ^ (~C[1] & C[2]); |
647 | R[4][1] = C[1] ^ (~C[2] & C[3]); | |
648 | R[4][2] = C[2] ^ (~C[3] & C[4]); | |
649 | R[4][3] = C[3] ^ (~C[4] & C[0]); | |
650 | R[4][4] = C[4] ^ (~C[0] & C[1]); | |
1f2aff25 | 651 | #endif |
79dfc3dd AP |
652 | } |
653 | ||
b4f2a462 | 654 | static void KeccakF1600(uint64_t A[5][5]) |
79dfc3dd AP |
655 | { |
656 | uint64_t T[5][5]; | |
657 | size_t i; | |
658 | ||
1f2aff25 AP |
659 | #ifdef KECCAK_COMPLEMENTING_TRANSFORM |
660 | A[0][1] = ~A[0][1]; | |
661 | A[0][2] = ~A[0][2]; | |
662 | A[1][3] = ~A[1][3]; | |
663 | A[2][2] = ~A[2][2]; | |
664 | A[3][2] = ~A[3][2]; | |
665 | A[4][0] = ~A[4][0]; | |
666 | #endif | |
667 | ||
79dfc3dd AP |
668 | for (i = 0; i < 24; i += 2) { |
669 | Round(T, A, i); | |
670 | Round(A, T, i + 1); | |
671 | } | |
1f2aff25 AP |
672 | |
673 | #ifdef KECCAK_COMPLEMENTING_TRANSFORM | |
674 | A[0][1] = ~A[0][1]; | |
675 | A[0][2] = ~A[0][2]; | |
676 | A[1][3] = ~A[1][3]; | |
677 | A[2][2] = ~A[2][2]; | |
678 | A[3][2] = ~A[3][2]; | |
679 | A[4][0] = ~A[4][0]; | |
680 | #endif | |
79dfc3dd AP |
681 | } |
682 | ||
5d010e3f | 683 | #else /* define KECCAK_INPLACE to compile this code path */ |
79dfc3dd AP |
684 | /* |
685 | * This implementation is KECCAK_1X from above combined 4 times with | |
686 | * a twist that allows to omit temporary storage and perform in-place | |
687 | * processing. It's discussed in section 2.5 of "Keccak implementation | |
688 | * overview". It's likely to be best suited for processors with large | |
5d010e3f AP |
689 | * register bank... On the other hand processor with large register |
690 | * bank can as well use KECCAK_1X_ALT, it would be as fast but much | |
691 | * more compact... | |
79dfc3dd AP |
692 | */ |
693 | static void FourRounds(uint64_t A[5][5], size_t i) | |
694 | { | |
695 | uint64_t B[5], C[5], D[5]; | |
79dfc3dd AP |
696 | |
697 | assert(i <= (sizeof(iotas) / sizeof(iotas[0]) - 4)); | |
698 | ||
699 | /* Round 4*n */ | |
700 | C[0] = A[0][0] ^ A[1][0] ^ A[2][0] ^ A[3][0] ^ A[4][0]; | |
701 | C[1] = A[0][1] ^ A[1][1] ^ A[2][1] ^ A[3][1] ^ A[4][1]; | |
702 | C[2] = A[0][2] ^ A[1][2] ^ A[2][2] ^ A[3][2] ^ A[4][2]; | |
703 | C[3] = A[0][3] ^ A[1][3] ^ A[2][3] ^ A[3][3] ^ A[4][3]; | |
704 | C[4] = A[0][4] ^ A[1][4] ^ A[2][4] ^ A[3][4] ^ A[4][4]; | |
705 | ||
706 | D[0] = ROL64(C[1], 1) ^ C[4]; | |
707 | D[1] = ROL64(C[2], 1) ^ C[0]; | |
708 | D[2] = ROL64(C[3], 1) ^ C[1]; | |
709 | D[3] = ROL64(C[4], 1) ^ C[2]; | |
710 | D[4] = ROL64(C[0], 1) ^ C[3]; | |
711 | ||
712 | B[0] = A[0][0] ^ D[0]; /* rotate by 0 */ | |
713 | B[1] = ROL64(A[1][1] ^ D[1], rhotates[1][1]); | |
714 | B[2] = ROL64(A[2][2] ^ D[2], rhotates[2][2]); | |
715 | B[3] = ROL64(A[3][3] ^ D[3], rhotates[3][3]); | |
716 | B[4] = ROL64(A[4][4] ^ D[4], rhotates[4][4]); | |
717 | ||
718 | C[0] = A[0][0] = B[0] ^ (~B[1] & B[2]) ^ iotas[i]; | |
719 | C[1] = A[1][1] = B[1] ^ (~B[2] & B[3]); | |
720 | C[2] = A[2][2] = B[2] ^ (~B[3] & B[4]); | |
721 | C[3] = A[3][3] = B[3] ^ (~B[4] & B[0]); | |
722 | C[4] = A[4][4] = B[4] ^ (~B[0] & B[1]); | |
723 | ||
724 | B[0] = ROL64(A[0][3] ^ D[3], rhotates[0][3]); | |
725 | B[1] = ROL64(A[1][4] ^ D[4], rhotates[1][4]); | |
726 | B[2] = ROL64(A[2][0] ^ D[0], rhotates[2][0]); | |
727 | B[3] = ROL64(A[3][1] ^ D[1], rhotates[3][1]); | |
728 | B[4] = ROL64(A[4][2] ^ D[2], rhotates[4][2]); | |
729 | ||
730 | C[0] ^= A[2][0] = B[0] ^ (~B[1] & B[2]); | |
731 | C[1] ^= A[3][1] = B[1] ^ (~B[2] & B[3]); | |
732 | C[2] ^= A[4][2] = B[2] ^ (~B[3] & B[4]); | |
733 | C[3] ^= A[0][3] = B[3] ^ (~B[4] & B[0]); | |
734 | C[4] ^= A[1][4] = B[4] ^ (~B[0] & B[1]); | |
735 | ||
736 | B[0] = ROL64(A[0][1] ^ D[1], rhotates[0][1]); | |
737 | B[1] = ROL64(A[1][2] ^ D[2], rhotates[1][2]); | |
738 | B[2] = ROL64(A[2][3] ^ D[3], rhotates[2][3]); | |
739 | B[3] = ROL64(A[3][4] ^ D[4], rhotates[3][4]); | |
740 | B[4] = ROL64(A[4][0] ^ D[0], rhotates[4][0]); | |
741 | ||
742 | C[0] ^= A[4][0] = B[0] ^ (~B[1] & B[2]); | |
743 | C[1] ^= A[0][1] = B[1] ^ (~B[2] & B[3]); | |
744 | C[2] ^= A[1][2] = B[2] ^ (~B[3] & B[4]); | |
745 | C[3] ^= A[2][3] = B[3] ^ (~B[4] & B[0]); | |
746 | C[4] ^= A[3][4] = B[4] ^ (~B[0] & B[1]); | |
747 | ||
748 | B[0] = ROL64(A[0][4] ^ D[4], rhotates[0][4]); | |
749 | B[1] = ROL64(A[1][0] ^ D[0], rhotates[1][0]); | |
750 | B[2] = ROL64(A[2][1] ^ D[1], rhotates[2][1]); | |
751 | B[3] = ROL64(A[3][2] ^ D[2], rhotates[3][2]); | |
752 | B[4] = ROL64(A[4][3] ^ D[3], rhotates[4][3]); | |
753 | ||
754 | C[0] ^= A[1][0] = B[0] ^ (~B[1] & B[2]); | |
755 | C[1] ^= A[2][1] = B[1] ^ (~B[2] & B[3]); | |
756 | C[2] ^= A[3][2] = B[2] ^ (~B[3] & B[4]); | |
757 | C[3] ^= A[4][3] = B[3] ^ (~B[4] & B[0]); | |
758 | C[4] ^= A[0][4] = B[4] ^ (~B[0] & B[1]); | |
759 | ||
760 | B[0] = ROL64(A[0][2] ^ D[2], rhotates[0][2]); | |
761 | B[1] = ROL64(A[1][3] ^ D[3], rhotates[1][3]); | |
762 | B[2] = ROL64(A[2][4] ^ D[4], rhotates[2][4]); | |
763 | B[3] = ROL64(A[3][0] ^ D[0], rhotates[3][0]); | |
764 | B[4] = ROL64(A[4][1] ^ D[1], rhotates[4][1]); | |
765 | ||
766 | C[0] ^= A[3][0] = B[0] ^ (~B[1] & B[2]); | |
767 | C[1] ^= A[4][1] = B[1] ^ (~B[2] & B[3]); | |
768 | C[2] ^= A[0][2] = B[2] ^ (~B[3] & B[4]); | |
769 | C[3] ^= A[1][3] = B[3] ^ (~B[4] & B[0]); | |
770 | C[4] ^= A[2][4] = B[4] ^ (~B[0] & B[1]); | |
771 | ||
772 | /* Round 4*n+1 */ | |
773 | D[0] = ROL64(C[1], 1) ^ C[4]; | |
774 | D[1] = ROL64(C[2], 1) ^ C[0]; | |
775 | D[2] = ROL64(C[3], 1) ^ C[1]; | |
776 | D[3] = ROL64(C[4], 1) ^ C[2]; | |
777 | D[4] = ROL64(C[0], 1) ^ C[3]; | |
778 | ||
779 | B[0] = A[0][0] ^ D[0]; /* rotate by 0 */ | |
780 | B[1] = ROL64(A[3][1] ^ D[1], rhotates[1][1]); | |
781 | B[2] = ROL64(A[1][2] ^ D[2], rhotates[2][2]); | |
782 | B[3] = ROL64(A[4][3] ^ D[3], rhotates[3][3]); | |
783 | B[4] = ROL64(A[2][4] ^ D[4], rhotates[4][4]); | |
784 | ||
785 | C[0] = A[0][0] = B[0] ^ (~B[1] & B[2]) ^ iotas[i + 1]; | |
786 | C[1] = A[3][1] = B[1] ^ (~B[2] & B[3]); | |
787 | C[2] = A[1][2] = B[2] ^ (~B[3] & B[4]); | |
788 | C[3] = A[4][3] = B[3] ^ (~B[4] & B[0]); | |
789 | C[4] = A[2][4] = B[4] ^ (~B[0] & B[1]); | |
790 | ||
791 | B[0] = ROL64(A[3][3] ^ D[3], rhotates[0][3]); | |
792 | B[1] = ROL64(A[1][4] ^ D[4], rhotates[1][4]); | |
793 | B[2] = ROL64(A[4][0] ^ D[0], rhotates[2][0]); | |
794 | B[3] = ROL64(A[2][1] ^ D[1], rhotates[3][1]); | |
795 | B[4] = ROL64(A[0][2] ^ D[2], rhotates[4][2]); | |
796 | ||
797 | C[0] ^= A[4][0] = B[0] ^ (~B[1] & B[2]); | |
798 | C[1] ^= A[2][1] = B[1] ^ (~B[2] & B[3]); | |
799 | C[2] ^= A[0][2] = B[2] ^ (~B[3] & B[4]); | |
800 | C[3] ^= A[3][3] = B[3] ^ (~B[4] & B[0]); | |
801 | C[4] ^= A[1][4] = B[4] ^ (~B[0] & B[1]); | |
802 | ||
803 | B[0] = ROL64(A[1][1] ^ D[1], rhotates[0][1]); | |
804 | B[1] = ROL64(A[4][2] ^ D[2], rhotates[1][2]); | |
805 | B[2] = ROL64(A[2][3] ^ D[3], rhotates[2][3]); | |
806 | B[3] = ROL64(A[0][4] ^ D[4], rhotates[3][4]); | |
807 | B[4] = ROL64(A[3][0] ^ D[0], rhotates[4][0]); | |
808 | ||
809 | C[0] ^= A[3][0] = B[0] ^ (~B[1] & B[2]); | |
810 | C[1] ^= A[1][1] = B[1] ^ (~B[2] & B[3]); | |
811 | C[2] ^= A[4][2] = B[2] ^ (~B[3] & B[4]); | |
812 | C[3] ^= A[2][3] = B[3] ^ (~B[4] & B[0]); | |
813 | C[4] ^= A[0][4] = B[4] ^ (~B[0] & B[1]); | |
814 | ||
815 | B[0] = ROL64(A[4][4] ^ D[4], rhotates[0][4]); | |
816 | B[1] = ROL64(A[2][0] ^ D[0], rhotates[1][0]); | |
817 | B[2] = ROL64(A[0][1] ^ D[1], rhotates[2][1]); | |
818 | B[3] = ROL64(A[3][2] ^ D[2], rhotates[3][2]); | |
819 | B[4] = ROL64(A[1][3] ^ D[3], rhotates[4][3]); | |
820 | ||
821 | C[0] ^= A[2][0] = B[0] ^ (~B[1] & B[2]); | |
822 | C[1] ^= A[0][1] = B[1] ^ (~B[2] & B[3]); | |
823 | C[2] ^= A[3][2] = B[2] ^ (~B[3] & B[4]); | |
824 | C[3] ^= A[1][3] = B[3] ^ (~B[4] & B[0]); | |
825 | C[4] ^= A[4][4] = B[4] ^ (~B[0] & B[1]); | |
826 | ||
827 | B[0] = ROL64(A[2][2] ^ D[2], rhotates[0][2]); | |
828 | B[1] = ROL64(A[0][3] ^ D[3], rhotates[1][3]); | |
829 | B[2] = ROL64(A[3][4] ^ D[4], rhotates[2][4]); | |
830 | B[3] = ROL64(A[1][0] ^ D[0], rhotates[3][0]); | |
831 | B[4] = ROL64(A[4][1] ^ D[1], rhotates[4][1]); | |
832 | ||
833 | C[0] ^= A[1][0] = B[0] ^ (~B[1] & B[2]); | |
834 | C[1] ^= A[4][1] = B[1] ^ (~B[2] & B[3]); | |
835 | C[2] ^= A[2][2] = B[2] ^ (~B[3] & B[4]); | |
836 | C[3] ^= A[0][3] = B[3] ^ (~B[4] & B[0]); | |
837 | C[4] ^= A[3][4] = B[4] ^ (~B[0] & B[1]); | |
838 | ||
839 | /* Round 4*n+2 */ | |
840 | D[0] = ROL64(C[1], 1) ^ C[4]; | |
841 | D[1] = ROL64(C[2], 1) ^ C[0]; | |
842 | D[2] = ROL64(C[3], 1) ^ C[1]; | |
843 | D[3] = ROL64(C[4], 1) ^ C[2]; | |
844 | D[4] = ROL64(C[0], 1) ^ C[3]; | |
845 | ||
846 | B[0] = A[0][0] ^ D[0]; /* rotate by 0 */ | |
847 | B[1] = ROL64(A[2][1] ^ D[1], rhotates[1][1]); | |
848 | B[2] = ROL64(A[4][2] ^ D[2], rhotates[2][2]); | |
849 | B[3] = ROL64(A[1][3] ^ D[3], rhotates[3][3]); | |
850 | B[4] = ROL64(A[3][4] ^ D[4], rhotates[4][4]); | |
851 | ||
852 | C[0] = A[0][0] = B[0] ^ (~B[1] & B[2]) ^ iotas[i + 2]; | |
853 | C[1] = A[2][1] = B[1] ^ (~B[2] & B[3]); | |
854 | C[2] = A[4][2] = B[2] ^ (~B[3] & B[4]); | |
855 | C[3] = A[1][3] = B[3] ^ (~B[4] & B[0]); | |
856 | C[4] = A[3][4] = B[4] ^ (~B[0] & B[1]); | |
857 | ||
858 | B[0] = ROL64(A[4][3] ^ D[3], rhotates[0][3]); | |
859 | B[1] = ROL64(A[1][4] ^ D[4], rhotates[1][4]); | |
860 | B[2] = ROL64(A[3][0] ^ D[0], rhotates[2][0]); | |
861 | B[3] = ROL64(A[0][1] ^ D[1], rhotates[3][1]); | |
862 | B[4] = ROL64(A[2][2] ^ D[2], rhotates[4][2]); | |
863 | ||
864 | C[0] ^= A[3][0] = B[0] ^ (~B[1] & B[2]); | |
865 | C[1] ^= A[0][1] = B[1] ^ (~B[2] & B[3]); | |
866 | C[2] ^= A[2][2] = B[2] ^ (~B[3] & B[4]); | |
867 | C[3] ^= A[4][3] = B[3] ^ (~B[4] & B[0]); | |
868 | C[4] ^= A[1][4] = B[4] ^ (~B[0] & B[1]); | |
869 | ||
870 | B[0] = ROL64(A[3][1] ^ D[1], rhotates[0][1]); | |
871 | B[1] = ROL64(A[0][2] ^ D[2], rhotates[1][2]); | |
872 | B[2] = ROL64(A[2][3] ^ D[3], rhotates[2][3]); | |
873 | B[3] = ROL64(A[4][4] ^ D[4], rhotates[3][4]); | |
874 | B[4] = ROL64(A[1][0] ^ D[0], rhotates[4][0]); | |
875 | ||
876 | C[0] ^= A[1][0] = B[0] ^ (~B[1] & B[2]); | |
877 | C[1] ^= A[3][1] = B[1] ^ (~B[2] & B[3]); | |
878 | C[2] ^= A[0][2] = B[2] ^ (~B[3] & B[4]); | |
879 | C[3] ^= A[2][3] = B[3] ^ (~B[4] & B[0]); | |
880 | C[4] ^= A[4][4] = B[4] ^ (~B[0] & B[1]); | |
881 | ||
882 | B[0] = ROL64(A[2][4] ^ D[4], rhotates[0][4]); | |
883 | B[1] = ROL64(A[4][0] ^ D[0], rhotates[1][0]); | |
884 | B[2] = ROL64(A[1][1] ^ D[1], rhotates[2][1]); | |
885 | B[3] = ROL64(A[3][2] ^ D[2], rhotates[3][2]); | |
886 | B[4] = ROL64(A[0][3] ^ D[3], rhotates[4][3]); | |
887 | ||
888 | C[0] ^= A[4][0] = B[0] ^ (~B[1] & B[2]); | |
889 | C[1] ^= A[1][1] = B[1] ^ (~B[2] & B[3]); | |
890 | C[2] ^= A[3][2] = B[2] ^ (~B[3] & B[4]); | |
891 | C[3] ^= A[0][3] = B[3] ^ (~B[4] & B[0]); | |
892 | C[4] ^= A[2][4] = B[4] ^ (~B[0] & B[1]); | |
893 | ||
894 | B[0] = ROL64(A[1][2] ^ D[2], rhotates[0][2]); | |
895 | B[1] = ROL64(A[3][3] ^ D[3], rhotates[1][3]); | |
896 | B[2] = ROL64(A[0][4] ^ D[4], rhotates[2][4]); | |
897 | B[3] = ROL64(A[2][0] ^ D[0], rhotates[3][0]); | |
898 | B[4] = ROL64(A[4][1] ^ D[1], rhotates[4][1]); | |
899 | ||
900 | C[0] ^= A[2][0] = B[0] ^ (~B[1] & B[2]); | |
901 | C[1] ^= A[4][1] = B[1] ^ (~B[2] & B[3]); | |
902 | C[2] ^= A[1][2] = B[2] ^ (~B[3] & B[4]); | |
903 | C[3] ^= A[3][3] = B[3] ^ (~B[4] & B[0]); | |
904 | C[4] ^= A[0][4] = B[4] ^ (~B[0] & B[1]); | |
905 | ||
906 | /* Round 4*n+3 */ | |
907 | D[0] = ROL64(C[1], 1) ^ C[4]; | |
908 | D[1] = ROL64(C[2], 1) ^ C[0]; | |
909 | D[2] = ROL64(C[3], 1) ^ C[1]; | |
910 | D[3] = ROL64(C[4], 1) ^ C[2]; | |
911 | D[4] = ROL64(C[0], 1) ^ C[3]; | |
912 | ||
913 | B[0] = A[0][0] ^ D[0]; /* rotate by 0 */ | |
914 | B[1] = ROL64(A[0][1] ^ D[1], rhotates[1][1]); | |
915 | B[2] = ROL64(A[0][2] ^ D[2], rhotates[2][2]); | |
916 | B[3] = ROL64(A[0][3] ^ D[3], rhotates[3][3]); | |
917 | B[4] = ROL64(A[0][4] ^ D[4], rhotates[4][4]); | |
918 | ||
919 | /* C[0] = */ A[0][0] = B[0] ^ (~B[1] & B[2]) ^ iotas[i + 3]; | |
920 | /* C[1] = */ A[0][1] = B[1] ^ (~B[2] & B[3]); | |
921 | /* C[2] = */ A[0][2] = B[2] ^ (~B[3] & B[4]); | |
922 | /* C[3] = */ A[0][3] = B[3] ^ (~B[4] & B[0]); | |
923 | /* C[4] = */ A[0][4] = B[4] ^ (~B[0] & B[1]); | |
924 | ||
925 | B[0] = ROL64(A[1][3] ^ D[3], rhotates[0][3]); | |
926 | B[1] = ROL64(A[1][4] ^ D[4], rhotates[1][4]); | |
927 | B[2] = ROL64(A[1][0] ^ D[0], rhotates[2][0]); | |
928 | B[3] = ROL64(A[1][1] ^ D[1], rhotates[3][1]); | |
929 | B[4] = ROL64(A[1][2] ^ D[2], rhotates[4][2]); | |
930 | ||
931 | /* C[0] ^= */ A[1][0] = B[0] ^ (~B[1] & B[2]); | |
932 | /* C[1] ^= */ A[1][1] = B[1] ^ (~B[2] & B[3]); | |
933 | /* C[2] ^= */ A[1][2] = B[2] ^ (~B[3] & B[4]); | |
934 | /* C[3] ^= */ A[1][3] = B[3] ^ (~B[4] & B[0]); | |
935 | /* C[4] ^= */ A[1][4] = B[4] ^ (~B[0] & B[1]); | |
936 | ||
937 | B[0] = ROL64(A[2][1] ^ D[1], rhotates[0][1]); | |
938 | B[1] = ROL64(A[2][2] ^ D[2], rhotates[1][2]); | |
939 | B[2] = ROL64(A[2][3] ^ D[3], rhotates[2][3]); | |
940 | B[3] = ROL64(A[2][4] ^ D[4], rhotates[3][4]); | |
941 | B[4] = ROL64(A[2][0] ^ D[0], rhotates[4][0]); | |
942 | ||
943 | /* C[0] ^= */ A[2][0] = B[0] ^ (~B[1] & B[2]); | |
944 | /* C[1] ^= */ A[2][1] = B[1] ^ (~B[2] & B[3]); | |
945 | /* C[2] ^= */ A[2][2] = B[2] ^ (~B[3] & B[4]); | |
946 | /* C[3] ^= */ A[2][3] = B[3] ^ (~B[4] & B[0]); | |
947 | /* C[4] ^= */ A[2][4] = B[4] ^ (~B[0] & B[1]); | |
948 | ||
949 | B[0] = ROL64(A[3][4] ^ D[4], rhotates[0][4]); | |
950 | B[1] = ROL64(A[3][0] ^ D[0], rhotates[1][0]); | |
951 | B[2] = ROL64(A[3][1] ^ D[1], rhotates[2][1]); | |
952 | B[3] = ROL64(A[3][2] ^ D[2], rhotates[3][2]); | |
953 | B[4] = ROL64(A[3][3] ^ D[3], rhotates[4][3]); | |
954 | ||
955 | /* C[0] ^= */ A[3][0] = B[0] ^ (~B[1] & B[2]); | |
956 | /* C[1] ^= */ A[3][1] = B[1] ^ (~B[2] & B[3]); | |
957 | /* C[2] ^= */ A[3][2] = B[2] ^ (~B[3] & B[4]); | |
958 | /* C[3] ^= */ A[3][3] = B[3] ^ (~B[4] & B[0]); | |
959 | /* C[4] ^= */ A[3][4] = B[4] ^ (~B[0] & B[1]); | |
960 | ||
961 | B[0] = ROL64(A[4][2] ^ D[2], rhotates[0][2]); | |
962 | B[1] = ROL64(A[4][3] ^ D[3], rhotates[1][3]); | |
963 | B[2] = ROL64(A[4][4] ^ D[4], rhotates[2][4]); | |
964 | B[3] = ROL64(A[4][0] ^ D[0], rhotates[3][0]); | |
965 | B[4] = ROL64(A[4][1] ^ D[1], rhotates[4][1]); | |
966 | ||
967 | /* C[0] ^= */ A[4][0] = B[0] ^ (~B[1] & B[2]); | |
968 | /* C[1] ^= */ A[4][1] = B[1] ^ (~B[2] & B[3]); | |
969 | /* C[2] ^= */ A[4][2] = B[2] ^ (~B[3] & B[4]); | |
970 | /* C[3] ^= */ A[4][3] = B[3] ^ (~B[4] & B[0]); | |
971 | /* C[4] ^= */ A[4][4] = B[4] ^ (~B[0] & B[1]); | |
972 | } | |
973 | ||
b4f2a462 | 974 | static void KeccakF1600(uint64_t A[5][5]) |
79dfc3dd AP |
975 | { |
976 | size_t i; | |
977 | ||
978 | for (i = 0; i < 24; i += 4) { | |
979 | FourRounds(A, i); | |
980 | } | |
981 | } | |
982 | ||
983 | #endif | |
984 | ||
0dd0be94 AP |
985 | static uint64_t BitInterleave(uint64_t Ai) |
986 | { | |
13603583 AP |
987 | if (BIT_INTERLEAVE) { |
988 | uint32_t hi = (uint32_t)(Ai >> 32), lo = (uint32_t)Ai; | |
989 | uint32_t t0, t1; | |
990 | ||
991 | t0 = lo & 0x55555555; | |
992 | t0 |= t0 >> 1; t0 &= 0x33333333; | |
993 | t0 |= t0 >> 2; t0 &= 0x0f0f0f0f; | |
994 | t0 |= t0 >> 4; t0 &= 0x00ff00ff; | |
995 | t0 |= t0 >> 8; t0 &= 0x0000ffff; | |
996 | ||
997 | t1 = hi & 0x55555555; | |
998 | t1 |= t1 >> 1; t1 &= 0x33333333; | |
999 | t1 |= t1 >> 2; t1 &= 0x0f0f0f0f; | |
1000 | t1 |= t1 >> 4; t1 &= 0x00ff00ff; | |
1001 | t1 |= t1 >> 8; t1 <<= 16; | |
1002 | ||
1003 | lo &= 0xaaaaaaaa; | |
1004 | lo |= lo << 1; lo &= 0xcccccccc; | |
1005 | lo |= lo << 2; lo &= 0xf0f0f0f0; | |
1006 | lo |= lo << 4; lo &= 0xff00ff00; | |
1007 | lo |= lo << 8; lo >>= 16; | |
1008 | ||
1009 | hi &= 0xaaaaaaaa; | |
1010 | hi |= hi << 1; hi &= 0xcccccccc; | |
1011 | hi |= hi << 2; hi &= 0xf0f0f0f0; | |
1012 | hi |= hi << 4; hi &= 0xff00ff00; | |
1013 | hi |= hi << 8; hi &= 0xffff0000; | |
1014 | ||
1015 | Ai = ((uint64_t)(hi | lo) << 32) | (t1 | t0); | |
0dd0be94 AP |
1016 | } |
1017 | ||
1018 | return Ai; | |
1019 | } | |
1020 | ||
1021 | static uint64_t BitDeinterleave(uint64_t Ai) | |
1022 | { | |
13603583 | 1023 | if (BIT_INTERLEAVE) { |
0dd0be94 | 1024 | uint32_t hi = (uint32_t)(Ai >> 32), lo = (uint32_t)Ai; |
13603583 AP |
1025 | uint32_t t0, t1; |
1026 | ||
1027 | t0 = lo & 0x0000ffff; | |
1028 | t0 |= t0 << 8; t0 &= 0x00ff00ff; | |
1029 | t0 |= t0 << 4; t0 &= 0x0f0f0f0f; | |
1030 | t0 |= t0 << 2; t0 &= 0x33333333; | |
1031 | t0 |= t0 << 1; t0 &= 0x55555555; | |
1032 | ||
1033 | t1 = hi << 16; | |
1034 | t1 |= t1 >> 8; t1 &= 0xff00ff00; | |
1035 | t1 |= t1 >> 4; t1 &= 0xf0f0f0f0; | |
1036 | t1 |= t1 >> 2; t1 &= 0xcccccccc; | |
1037 | t1 |= t1 >> 1; t1 &= 0xaaaaaaaa; | |
1038 | ||
1039 | lo >>= 16; | |
1040 | lo |= lo << 8; lo &= 0x00ff00ff; | |
1041 | lo |= lo << 4; lo &= 0x0f0f0f0f; | |
1042 | lo |= lo << 2; lo &= 0x33333333; | |
1043 | lo |= lo << 1; lo &= 0x55555555; | |
1044 | ||
1045 | hi &= 0xffff0000; | |
1046 | hi |= hi >> 8; hi &= 0xff00ff00; | |
1047 | hi |= hi >> 4; hi &= 0xf0f0f0f0; | |
1048 | hi |= hi >> 2; hi &= 0xcccccccc; | |
1049 | hi |= hi >> 1; hi &= 0xaaaaaaaa; | |
1050 | ||
1051 | Ai = ((uint64_t)(hi | lo) << 32) | (t1 | t0); | |
0dd0be94 AP |
1052 | } |
1053 | ||
1054 | return Ai; | |
1055 | } | |
1056 | ||
b9feae1b AP |
1057 | /* |
1058 | * SHA3_absorb can be called multiple times, but at each invocation | |
1059 | * largest multiple of |r| out of |len| bytes are processed. Then | |
c83a4db5 AP |
1060 | * remaining amount of bytes is returned. This is done to spare caller |
1061 | * trouble of calculating the largest multiple of |r|. |r| can be viewed | |
1062 | * as blocksize. It is commonly (1600 - 256*n)/8, e.g. 168, 136, 104, | |
1063 | * 72, but can also be (1600 - 448)/8 = 144. All this means that message | |
b9feae1b | 1064 | * padding and intermediate sub-block buffering, byte- or bitwise, is |
46f4e1be | 1065 | * caller's responsibility. |
b9feae1b AP |
1066 | */ |
1067 | size_t SHA3_absorb(uint64_t A[5][5], const unsigned char *inp, size_t len, | |
1068 | size_t r) | |
1069 | { | |
1070 | uint64_t *A_flat = (uint64_t *)A; | |
1071 | size_t i, w = r / 8; | |
1072 | ||
4b904301 AP |
1073 | assert(r < (25 * sizeof(A[0][0])) && (r % 8) == 0); |
1074 | ||
b9feae1b AP |
1075 | while (len >= r) { |
1076 | for (i = 0; i < w; i++) { | |
0dd0be94 AP |
1077 | uint64_t Ai = (uint64_t)inp[0] | (uint64_t)inp[1] << 8 | |
1078 | (uint64_t)inp[2] << 16 | (uint64_t)inp[3] << 24 | | |
1079 | (uint64_t)inp[4] << 32 | (uint64_t)inp[5] << 40 | | |
1080 | (uint64_t)inp[6] << 48 | (uint64_t)inp[7] << 56; | |
b9feae1b | 1081 | inp += 8; |
0dd0be94 AP |
1082 | |
1083 | A_flat[i] ^= BitInterleave(Ai); | |
b9feae1b AP |
1084 | } |
1085 | KeccakF1600(A); | |
1086 | len -= r; | |
1087 | } | |
1088 | ||
1089 | return len; | |
1090 | } | |
1091 | ||
1092 | /* | |
d5e5e2ff | 1093 | * sha3_squeeze is called once at the end to generate |out| hash value |
b9feae1b AP |
1094 | * of |len| bytes. |
1095 | */ | |
1096 | void SHA3_squeeze(uint64_t A[5][5], unsigned char *out, size_t len, size_t r) | |
1097 | { | |
1098 | uint64_t *A_flat = (uint64_t *)A; | |
b4f2a462 | 1099 | size_t i, w = r / 8; |
b9feae1b | 1100 | |
4b904301 AP |
1101 | assert(r < (25 * sizeof(A[0][0])) && (r % 8) == 0); |
1102 | ||
b4f2a462 AP |
1103 | while (len != 0) { |
1104 | for (i = 0; i < w && len != 0; i++) { | |
0dd0be94 | 1105 | uint64_t Ai = BitDeinterleave(A_flat[i]); |
b9feae1b | 1106 | |
b4f2a462 AP |
1107 | if (len < 8) { |
1108 | for (i = 0; i < len; i++) { | |
1109 | *out++ = (unsigned char)Ai; | |
1110 | Ai >>= 8; | |
1111 | } | |
1112 | return; | |
1113 | } | |
1114 | ||
b9feae1b AP |
1115 | out[0] = (unsigned char)(Ai); |
1116 | out[1] = (unsigned char)(Ai >> 8); | |
1117 | out[2] = (unsigned char)(Ai >> 16); | |
1118 | out[3] = (unsigned char)(Ai >> 24); | |
1119 | out[4] = (unsigned char)(Ai >> 32); | |
1120 | out[5] = (unsigned char)(Ai >> 40); | |
1121 | out[6] = (unsigned char)(Ai >> 48); | |
1122 | out[7] = (unsigned char)(Ai >> 56); | |
1123 | out += 8; | |
b4f2a462 | 1124 | len -= 8; |
b9feae1b | 1125 | } |
b9feae1b AP |
1126 | if (len) |
1127 | KeccakF1600(A); | |
1128 | } | |
b9feae1b | 1129 | } |
71dd3b64 | 1130 | #endif |
b9feae1b AP |
1131 | |
1132 | #ifdef SELFTEST | |
1133 | /* | |
1134 | * Post-padding one-shot implementations would look as following: | |
1135 | * | |
1136 | * SHA3_224 SHA3_sponge(inp, len, out, 224/8, (1600-448)/8); | |
1137 | * SHA3_256 SHA3_sponge(inp, len, out, 256/8, (1600-512)/8); | |
1138 | * SHA3_384 SHA3_sponge(inp, len, out, 384/8, (1600-768)/8); | |
1139 | * SHA3_512 SHA3_sponge(inp, len, out, 512/8, (1600-1024)/8); | |
1140 | * SHAKE_128 SHA3_sponge(inp, len, out, d, (1600-256)/8); | |
1141 | * SHAKE_256 SHA3_sponge(inp, len, out, d, (1600-512)/8); | |
1142 | */ | |
1143 | ||
1144 | void SHA3_sponge(const unsigned char *inp, size_t len, | |
1145 | unsigned char *out, size_t d, size_t r) | |
1146 | { | |
1147 | uint64_t A[5][5]; | |
1148 | ||
1149 | memset(A, 0, sizeof(A)); | |
1150 | SHA3_absorb(A, inp, len, r); | |
1151 | SHA3_squeeze(A, out, d, r); | |
1152 | } | |
1153 | ||
1154 | # include <stdio.h> | |
1155 | ||
1156 | int main() | |
1157 | { | |
c3086f46 AP |
1158 | /* |
1159 | * This is 5-bit SHAKE128 test from http://csrc.nist.gov/groups/ST/toolkit/examples.html#aHashing | |
1160 | */ | |
b9feae1b AP |
1161 | unsigned char test[168] = { '\xf3', '\x3' }; |
1162 | unsigned char out[512]; | |
1163 | size_t i; | |
c3086f46 AP |
1164 | static const unsigned char result[512] = { |
1165 | 0x2E, 0x0A, 0xBF, 0xBA, 0x83, 0xE6, 0x72, 0x0B, | |
1166 | 0xFB, 0xC2, 0x25, 0xFF, 0x6B, 0x7A, 0xB9, 0xFF, | |
1167 | 0xCE, 0x58, 0xBA, 0x02, 0x7E, 0xE3, 0xD8, 0x98, | |
1168 | 0x76, 0x4F, 0xEF, 0x28, 0x7D, 0xDE, 0xCC, 0xCA, | |
1169 | 0x3E, 0x6E, 0x59, 0x98, 0x41, 0x1E, 0x7D, 0xDB, | |
1170 | 0x32, 0xF6, 0x75, 0x38, 0xF5, 0x00, 0xB1, 0x8C, | |
1171 | 0x8C, 0x97, 0xC4, 0x52, 0xC3, 0x70, 0xEA, 0x2C, | |
1172 | 0xF0, 0xAF, 0xCA, 0x3E, 0x05, 0xDE, 0x7E, 0x4D, | |
1173 | 0xE2, 0x7F, 0xA4, 0x41, 0xA9, 0xCB, 0x34, 0xFD, | |
1174 | 0x17, 0xC9, 0x78, 0xB4, 0x2D, 0x5B, 0x7E, 0x7F, | |
1175 | 0x9A, 0xB1, 0x8F, 0xFE, 0xFF, 0xC3, 0xC5, 0xAC, | |
1176 | 0x2F, 0x3A, 0x45, 0x5E, 0xEB, 0xFD, 0xC7, 0x6C, | |
1177 | 0xEA, 0xEB, 0x0A, 0x2C, 0xCA, 0x22, 0xEE, 0xF6, | |
1178 | 0xE6, 0x37, 0xF4, 0xCA, 0xBE, 0x5C, 0x51, 0xDE, | |
1179 | 0xD2, 0xE3, 0xFA, 0xD8, 0xB9, 0x52, 0x70, 0xA3, | |
1180 | 0x21, 0x84, 0x56, 0x64, 0xF1, 0x07, 0xD1, 0x64, | |
1181 | 0x96, 0xBB, 0x7A, 0xBF, 0xBE, 0x75, 0x04, 0xB6, | |
1182 | 0xED, 0xE2, 0xE8, 0x9E, 0x4B, 0x99, 0x6F, 0xB5, | |
1183 | 0x8E, 0xFD, 0xC4, 0x18, 0x1F, 0x91, 0x63, 0x38, | |
1184 | 0x1C, 0xBE, 0x7B, 0xC0, 0x06, 0xA7, 0xA2, 0x05, | |
1185 | 0x98, 0x9C, 0x52, 0x6C, 0xD1, 0xBD, 0x68, 0x98, | |
1186 | 0x36, 0x93, 0xB4, 0xBD, 0xC5, 0x37, 0x28, 0xB2, | |
1187 | 0x41, 0xC1, 0xCF, 0xF4, 0x2B, 0xB6, 0x11, 0x50, | |
1188 | 0x2C, 0x35, 0x20, 0x5C, 0xAB, 0xB2, 0x88, 0x75, | |
1189 | 0x56, 0x55, 0xD6, 0x20, 0xC6, 0x79, 0x94, 0xF0, | |
1190 | 0x64, 0x51, 0x18, 0x7F, 0x6F, 0xD1, 0x7E, 0x04, | |
1191 | 0x66, 0x82, 0xBA, 0x12, 0x86, 0x06, 0x3F, 0xF8, | |
1192 | 0x8F, 0xE2, 0x50, 0x8D, 0x1F, 0xCA, 0xF9, 0x03, | |
1193 | 0x5A, 0x12, 0x31, 0xAD, 0x41, 0x50, 0xA9, 0xC9, | |
1194 | 0xB2, 0x4C, 0x9B, 0x2D, 0x66, 0xB2, 0xAD, 0x1B, | |
1195 | 0xDE, 0x0B, 0xD0, 0xBB, 0xCB, 0x8B, 0xE0, 0x5B, | |
1196 | 0x83, 0x52, 0x29, 0xEF, 0x79, 0x19, 0x73, 0x73, | |
1197 | 0x23, 0x42, 0x44, 0x01, 0xE1, 0xD8, 0x37, 0xB6, | |
1198 | 0x6E, 0xB4, 0xE6, 0x30, 0xFF, 0x1D, 0xE7, 0x0C, | |
1199 | 0xB3, 0x17, 0xC2, 0xBA, 0xCB, 0x08, 0x00, 0x1D, | |
1200 | 0x34, 0x77, 0xB7, 0xA7, 0x0A, 0x57, 0x6D, 0x20, | |
1201 | 0x86, 0x90, 0x33, 0x58, 0x9D, 0x85, 0xA0, 0x1D, | |
1202 | 0xDB, 0x2B, 0x66, 0x46, 0xC0, 0x43, 0xB5, 0x9F, | |
1203 | 0xC0, 0x11, 0x31, 0x1D, 0xA6, 0x66, 0xFA, 0x5A, | |
1204 | 0xD1, 0xD6, 0x38, 0x7F, 0xA9, 0xBC, 0x40, 0x15, | |
1205 | 0xA3, 0x8A, 0x51, 0xD1, 0xDA, 0x1E, 0xA6, 0x1D, | |
1206 | 0x64, 0x8D, 0xC8, 0xE3, 0x9A, 0x88, 0xB9, 0xD6, | |
1207 | 0x22, 0xBD, 0xE2, 0x07, 0xFD, 0xAB, 0xC6, 0xF2, | |
1208 | 0x82, 0x7A, 0x88, 0x0C, 0x33, 0x0B, 0xBF, 0x6D, | |
1209 | 0xF7, 0x33, 0x77, 0x4B, 0x65, 0x3E, 0x57, 0x30, | |
1210 | 0x5D, 0x78, 0xDC, 0xE1, 0x12, 0xF1, 0x0A, 0x2C, | |
1211 | 0x71, 0xF4, 0xCD, 0xAD, 0x92, 0xED, 0x11, 0x3E, | |
1212 | 0x1C, 0xEA, 0x63, 0xB9, 0x19, 0x25, 0xED, 0x28, | |
1213 | 0x19, 0x1E, 0x6D, 0xBB, 0xB5, 0xAA, 0x5A, 0x2A, | |
1214 | 0xFD, 0xA5, 0x1F, 0xC0, 0x5A, 0x3A, 0xF5, 0x25, | |
1215 | 0x8B, 0x87, 0x66, 0x52, 0x43, 0x55, 0x0F, 0x28, | |
1216 | 0x94, 0x8A, 0xE2, 0xB8, 0xBE, 0xB6, 0xBC, 0x9C, | |
1217 | 0x77, 0x0B, 0x35, 0xF0, 0x67, 0xEA, 0xA6, 0x41, | |
1218 | 0xEF, 0xE6, 0x5B, 0x1A, 0x44, 0x90, 0x9D, 0x1B, | |
1219 | 0x14, 0x9F, 0x97, 0xEE, 0xA6, 0x01, 0x39, 0x1C, | |
1220 | 0x60, 0x9E, 0xC8, 0x1D, 0x19, 0x30, 0xF5, 0x7C, | |
1221 | 0x18, 0xA4, 0xE0, 0xFA, 0xB4, 0x91, 0xD1, 0xCA, | |
1222 | 0xDF, 0xD5, 0x04, 0x83, 0x44, 0x9E, 0xDC, 0x0F, | |
1223 | 0x07, 0xFF, 0xB2, 0x4D, 0x2C, 0x6F, 0x9A, 0x9A, | |
1224 | 0x3B, 0xFF, 0x39, 0xAE, 0x3D, 0x57, 0xF5, 0x60, | |
1225 | 0x65, 0x4D, 0x7D, 0x75, 0xC9, 0x08, 0xAB, 0xE6, | |
1226 | 0x25, 0x64, 0x75, 0x3E, 0xAC, 0x39, 0xD7, 0x50, | |
1227 | 0x3D, 0xA6, 0xD3, 0x7C, 0x2E, 0x32, 0xE1, 0xAF, | |
1228 | 0x3B, 0x8A, 0xEC, 0x8A, 0xE3, 0x06, 0x9C, 0xD9 | |
1229 | }; | |
b9feae1b | 1230 | |
b9feae1b AP |
1231 | test[167] = '\x80'; |
1232 | SHA3_sponge(test, sizeof(test), out, sizeof(out), sizeof(test)); | |
1233 | ||
c3086f46 AP |
1234 | /* |
1235 | * Rationale behind keeping output [formatted as below] is that | |
1236 | * one should be able to redirect it to a file, then copy-n-paste | |
1237 | * final "output val" from official example to another file, and | |
1238 | * compare the two with diff(1). | |
1239 | */ | |
b9feae1b AP |
1240 | for (i = 0; i < sizeof(out);) { |
1241 | printf("%02X", out[i]); | |
1242 | printf(++i % 16 && i != sizeof(out) ? " " : "\n"); | |
1243 | } | |
c3086f46 | 1244 | |
1287dabd | 1245 | if (memcmp(out, result, sizeof(out))) { |
1246 | fprintf(stderr, "failure\n"); | |
c3086f46 AP |
1247 | return 1; |
1248 | } else { | |
1287dabd | 1249 | fprintf(stderr, "success\n"); |
c3086f46 AP |
1250 | return 0; |
1251 | } | |
b9feae1b AP |
1252 | } |
1253 | #endif |