1 /*
2 * IDI,NTNU
3 *
4 * CDDL HEADER START
5 *
6 * The contents of this file are subject to the terms of the
7 * Common Development and Distribution License (the "License").
8 * You may not use this file except in compliance with the License.
9 *
10 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
11 * or http://opensource.org/licenses/CDDL-1.0.
12 * See the License for the specific language governing permissions
13 * and limitations under the License.
14 *
15 * When distributing Covered Code, include this CDDL HEADER in each
16 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
17 * If applicable, add the following below this CDDL HEADER, with the
18 * fields enclosed by brackets "[]" replaced with your own identifying
19 * information: Portions Copyright [yyyy] [name of copyright owner]
20 *
21 * CDDL HEADER END
22 *
23 * Copyright (C) 2009, 2010, Jorn Amundsen <jorn.amundsen@ntnu.no>
24 * Tweaked Edon-R implementation for SUPERCOP, based on NIST API.
25 *
26 */
27 /*
28 * Portions copyright (c) 2013, Saso Kiselkov, All rights reserved
29 * Copyright 2016 Gary Mills
30 */
31
32 /* determine where we can get bcopy/bzero declarations */
33 #ifdef _KERNEL
34 #include <sys/systm.h>
35 #else
36 #include <strings.h>
37 #endif
38 #include <sys/edonr.h>
39 #include <sys/debug.h>
40
41 /* big endian support, provides no-op's if run on little endian hosts */
42 #include "edonr_byteorder.h"
43
44 #define hashState224(x) ((x)->pipe->p256)
45 #define hashState256(x) ((x)->pipe->p256)
46 #define hashState384(x) ((x)->pipe->p512)
47 #define hashState512(x) ((x)->pipe->p512)
48
49 /* shift and rotate shortcuts */
50 #define shl(x, n) ((x) << n)
51 #define shr(x, n) ((x) >> n)
52
53 #define rotl32(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
54 #define rotr32(x, n) (((x) >> (n)) | ((x) << (32 - (n))))
55
56 #define rotl64(x, n) (((x) << (n)) | ((x) >> (64 - (n))))
57 #define rotr64(x, n) (((x) >> (n)) | ((x) << (64 - (n))))
58
59 #if !defined(__C99_RESTRICT)
60 #define restrict /* restrict */
61 #endif
62
63 #define EDONR_VALID_HASHBITLEN(x) \
64 ((x) == 512 || (x) == 384 || (x) == 256 || (x) == 224)
65
66 /* EdonR224 initial double chaining pipe */
67 static const uint32_t i224p2[16] = {
68 0x00010203ul, 0x04050607ul, 0x08090a0bul, 0x0c0d0e0ful,
69 0x10111213ul, 0x14151617ul, 0x18191a1bul, 0x1c1d1e1ful,
70 0x20212223ul, 0x24252627ul, 0x28292a2bul, 0x2c2d2e2ful,
71 0x30313233ul, 0x34353637ul, 0x38393a3bul, 0x3c3d3e3ful,
72 };
73
74 /* EdonR256 initial double chaining pipe */
75 static const uint32_t i256p2[16] = {
76 0x40414243ul, 0x44454647ul, 0x48494a4bul, 0x4c4d4e4ful,
77 0x50515253ul, 0x54555657ul, 0x58595a5bul, 0x5c5d5e5ful,
78 0x60616263ul, 0x64656667ul, 0x68696a6bul, 0x6c6d6e6ful,
79 0x70717273ul, 0x74757677ul, 0x78797a7bul, 0x7c7d7e7ful,
80 };
81
82 /* EdonR384 initial double chaining pipe */
83 static const uint64_t i384p2[16] = {
84 0x0001020304050607ull, 0x08090a0b0c0d0e0full,
85 0x1011121314151617ull, 0x18191a1b1c1d1e1full,
86 0x2021222324252627ull, 0x28292a2b2c2d2e2full,
87 0x3031323334353637ull, 0x38393a3b3c3d3e3full,
88 0x4041424344454647ull, 0x48494a4b4c4d4e4full,
89 0x5051525354555657ull, 0x58595a5b5c5d5e5full,
90 0x6061626364656667ull, 0x68696a6b6c6d6e6full,
91 0x7071727374757677ull, 0x78797a7b7c7d7e7full
92 };
93
94 /* EdonR512 initial double chaining pipe */
95 static const uint64_t i512p2[16] = {
96 0x8081828384858687ull, 0x88898a8b8c8d8e8full,
97 0x9091929394959697ull, 0x98999a9b9c9d9e9full,
98 0xa0a1a2a3a4a5a6a7ull, 0xa8a9aaabacadaeafull,
99 0xb0b1b2b3b4b5b6b7ull, 0xb8b9babbbcbdbebfull,
100 0xc0c1c2c3c4c5c6c7ull, 0xc8c9cacbcccdcecfull,
101 0xd0d1d2d3d4d5d6d7ull, 0xd8d9dadbdcdddedfull,
102 0xe0e1e2e3e4e5e6e7ull, 0xe8e9eaebecedeeefull,
103 0xf0f1f2f3f4f5f6f7ull, 0xf8f9fafbfcfdfeffull
104 };
105
106 /*
107 * First Latin Square
108 * 0 7 1 3 2 4 6 5
109 * 4 1 7 6 3 0 5 2
110 * 7 0 4 2 5 3 1 6
111 * 1 4 0 5 6 2 7 3
112 * 2 3 6 7 1 5 0 4
113 * 5 2 3 1 7 6 4 0
114 * 3 6 5 0 4 7 2 1
115 * 6 5 2 4 0 1 3 7
116 */
117 #define LS1_256(c, x0, x1, x2, x3, x4, x5, x6, x7) \
118 { \
119 uint32_t x04, x17, x23, x56, x07, x26; \
120 x04 = x0+x4, x17 = x1+x7, x07 = x04+x17; \
121 s0 = c + x07 + x2; \
122 s1 = rotl32(x07 + x3, 4); \
123 s2 = rotl32(x07 + x6, 8); \
124 x23 = x2 + x3; \
125 s5 = rotl32(x04 + x23 + x5, 22); \
126 x56 = x5 + x6; \
127 s6 = rotl32(x17 + x56 + x0, 24); \
128 x26 = x23+x56; \
129 s3 = rotl32(x26 + x7, 13); \
130 s4 = rotl32(x26 + x1, 17); \
131 s7 = rotl32(x26 + x4, 29); \
132 }
133
134 #define LS1_512(c, x0, x1, x2, x3, x4, x5, x6, x7) \
135 { \
136 uint64_t x04, x17, x23, x56, x07, x26; \
137 x04 = x0+x4, x17 = x1+x7, x07 = x04+x17; \
138 s0 = c + x07 + x2; \
139 s1 = rotl64(x07 + x3, 5); \
140 s2 = rotl64(x07 + x6, 15); \
141 x23 = x2 + x3; \
142 s5 = rotl64(x04 + x23 + x5, 40); \
143 x56 = x5 + x6; \
144 s6 = rotl64(x17 + x56 + x0, 50); \
145 x26 = x23+x56; \
146 s3 = rotl64(x26 + x7, 22); \
147 s4 = rotl64(x26 + x1, 31); \
148 s7 = rotl64(x26 + x4, 59); \
149 }
150
151 /*
152 * Second Orthogonal Latin Square
153 * 0 4 2 3 1 6 5 7
154 * 7 6 3 2 5 4 1 0
155 * 5 3 1 6 0 2 7 4
156 * 1 0 5 4 3 7 2 6
157 * 2 1 0 7 4 5 6 3
158 * 3 5 7 0 6 1 4 2
159 * 4 7 6 1 2 0 3 5
160 * 6 2 4 5 7 3 0 1
161 */
162 #define LS2_256(c, y0, y1, y2, y3, y4, y5, y6, y7) \
163 { \
164 uint32_t y01, y25, y34, y67, y04, y05, y27, y37; \
165 y01 = y0+y1, y25 = y2+y5, y05 = y01+y25; \
166 t0 = ~c + y05 + y7; \
167 t2 = rotl32(y05 + y3, 9); \
168 y34 = y3+y4, y04 = y01+y34; \
169 t1 = rotl32(y04 + y6, 5); \
170 t4 = rotl32(y04 + y5, 15); \
171 y67 = y6+y7, y37 = y34+y67; \
172 t3 = rotl32(y37 + y2, 11); \
173 t7 = rotl32(y37 + y0, 27); \
174 y27 = y25+y67; \
175 t5 = rotl32(y27 + y4, 20); \
176 t6 = rotl32(y27 + y1, 25); \
177 }
178
179 #define LS2_512(c, y0, y1, y2, y3, y4, y5, y6, y7) \
180 { \
181 uint64_t y01, y25, y34, y67, y04, y05, y27, y37; \
182 y01 = y0+y1, y25 = y2+y5, y05 = y01+y25; \
183 t0 = ~c + y05 + y7; \
184 t2 = rotl64(y05 + y3, 19); \
185 y34 = y3+y4, y04 = y01+y34; \
186 t1 = rotl64(y04 + y6, 10); \
187 t4 = rotl64(y04 + y5, 36); \
188 y67 = y6+y7, y37 = y34+y67; \
189 t3 = rotl64(y37 + y2, 29); \
190 t7 = rotl64(y37 + y0, 55); \
191 y27 = y25+y67; \
192 t5 = rotl64(y27 + y4, 44); \
193 t6 = rotl64(y27 + y1, 48); \
194 }
195
196 #define quasi_exform256(r0, r1, r2, r3, r4, r5, r6, r7) \
197 { \
198 uint32_t s04, s17, s23, s56, t01, t25, t34, t67; \
199 s04 = s0 ^ s4, t01 = t0 ^ t1; \
200 r0 = (s04 ^ s1) + (t01 ^ t5); \
201 t67 = t6 ^ t7; \
202 r1 = (s04 ^ s7) + (t2 ^ t67); \
203 s23 = s2 ^ s3; \
204 r7 = (s23 ^ s5) + (t4 ^ t67); \
205 t34 = t3 ^ t4; \
206 r3 = (s23 ^ s4) + (t0 ^ t34); \
207 s56 = s5 ^ s6; \
208 r5 = (s3 ^ s56) + (t34 ^ t6); \
209 t25 = t2 ^ t5; \
210 r6 = (s2 ^ s56) + (t25 ^ t7); \
211 s17 = s1 ^ s7; \
212 r4 = (s0 ^ s17) + (t1 ^ t25); \
213 r2 = (s17 ^ s6) + (t01 ^ t3); \
214 }
215
216 #define quasi_exform512(r0, r1, r2, r3, r4, r5, r6, r7) \
217 { \
218 uint64_t s04, s17, s23, s56, t01, t25, t34, t67; \
219 s04 = s0 ^ s4, t01 = t0 ^ t1; \
220 r0 = (s04 ^ s1) + (t01 ^ t5); \
221 t67 = t6 ^ t7; \
222 r1 = (s04 ^ s7) + (t2 ^ t67); \
223 s23 = s2 ^ s3; \
224 r7 = (s23 ^ s5) + (t4 ^ t67); \
225 t34 = t3 ^ t4; \
226 r3 = (s23 ^ s4) + (t0 ^ t34); \
227 s56 = s5 ^ s6; \
228 r5 = (s3 ^ s56) + (t34 ^ t6); \
229 t25 = t2 ^ t5; \
230 r6 = (s2 ^ s56) + (t25 ^ t7); \
231 s17 = s1 ^ s7; \
232 r4 = (s0 ^ s17) + (t1 ^ t25); \
233 r2 = (s17 ^ s6) + (t01 ^ t3); \
234 }
235
236 static size_t
237 Q256(size_t bitlen, const uint32_t *data, uint32_t *restrict p)
238 {
239 size_t bl;
240
241 for (bl = bitlen; bl >= EdonR256_BLOCK_BITSIZE;
242 bl -= EdonR256_BLOCK_BITSIZE, data += 16) {
243 uint32_t s0, s1, s2, s3, s4, s5, s6, s7, t0, t1, t2, t3, t4,
244 t5, t6, t7;
245 uint32_t p0, p1, p2, p3, p4, p5, p6, p7, q0, q1, q2, q3, q4,
246 q5, q6, q7;
247 const uint32_t defix = 0xaaaaaaaa;
248 #if defined(MACHINE_IS_BIG_ENDIAN)
249 uint32_t swp0, swp1, swp2, swp3, swp4, swp5, swp6, swp7, swp8,
250 swp9, swp10, swp11, swp12, swp13, swp14, swp15;
251 #define d(j) swp ## j
252 #define s32(j) ld_swap32((uint32_t *)data + j, swp ## j)
253 #else
254 #define d(j) data[j]
255 #endif
256
257 /* First row of quasigroup e-transformations */
258 #if defined(MACHINE_IS_BIG_ENDIAN)
259 s32(8);
260 s32(9);
261 s32(10);
262 s32(11);
263 s32(12);
264 s32(13);
265 s32(14);
266 s32(15);
267 #endif
268 LS1_256(defix, d(15), d(14), d(13), d(12), d(11), d(10), d(9),
269 d(8));
270 #if defined(MACHINE_IS_BIG_ENDIAN)
271 s32(0);
272 s32(1);
273 s32(2);
274 s32(3);
275 s32(4);
276 s32(5);
277 s32(6);
278 s32(7);
279 #undef s32
280 #endif
281 LS2_256(defix, d(0), d(1), d(2), d(3), d(4), d(5), d(6), d(7));
282 quasi_exform256(p0, p1, p2, p3, p4, p5, p6, p7);
283
284 LS1_256(defix, p0, p1, p2, p3, p4, p5, p6, p7);
285 LS2_256(defix, d(8), d(9), d(10), d(11), d(12), d(13), d(14),
286 d(15));
287 quasi_exform256(q0, q1, q2, q3, q4, q5, q6, q7);
288
289 /* Second row of quasigroup e-transformations */
290 LS1_256(defix, p[8], p[9], p[10], p[11], p[12], p[13], p[14],
291 p[15]);
292 LS2_256(defix, p0, p1, p2, p3, p4, p5, p6, p7);
293 quasi_exform256(p0, p1, p2, p3, p4, p5, p6, p7);
294
295 LS1_256(defix, p0, p1, p2, p3, p4, p5, p6, p7);
296 LS2_256(defix, q0, q1, q2, q3, q4, q5, q6, q7);
297 quasi_exform256(q0, q1, q2, q3, q4, q5, q6, q7);
298
299 /* Third row of quasigroup e-transformations */
300 LS1_256(defix, p0, p1, p2, p3, p4, p5, p6, p7);
301 LS2_256(defix, p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
302 quasi_exform256(p0, p1, p2, p3, p4, p5, p6, p7);
303
304 LS1_256(defix, q0, q1, q2, q3, q4, q5, q6, q7);
305 LS2_256(defix, p0, p1, p2, p3, p4, p5, p6, p7);
306 quasi_exform256(q0, q1, q2, q3, q4, q5, q6, q7);
307
308 /* Fourth row of quasigroup e-transformations */
309 LS1_256(defix, d(7), d(6), d(5), d(4), d(3), d(2), d(1), d(0));
310 LS2_256(defix, p0, p1, p2, p3, p4, p5, p6, p7);
311 quasi_exform256(p0, p1, p2, p3, p4, p5, p6, p7);
312
313 LS1_256(defix, p0, p1, p2, p3, p4, p5, p6, p7);
314 LS2_256(defix, q0, q1, q2, q3, q4, q5, q6, q7);
315 quasi_exform256(q0, q1, q2, q3, q4, q5, q6, q7);
316
317 /* Edon-R tweak on the original SHA-3 Edon-R submission. */
318 p[0] ^= d(8) ^ p0;
319 p[1] ^= d(9) ^ p1;
320 p[2] ^= d(10) ^ p2;
321 p[3] ^= d(11) ^ p3;
322 p[4] ^= d(12) ^ p4;
323 p[5] ^= d(13) ^ p5;
324 p[6] ^= d(14) ^ p6;
325 p[7] ^= d(15) ^ p7;
326 p[8] ^= d(0) ^ q0;
327 p[9] ^= d(1) ^ q1;
328 p[10] ^= d(2) ^ q2;
329 p[11] ^= d(3) ^ q3;
330 p[12] ^= d(4) ^ q4;
331 p[13] ^= d(5) ^ q5;
332 p[14] ^= d(6) ^ q6;
333 p[15] ^= d(7) ^ q7;
334 }
335
336 #undef d
337 return (bitlen - bl);
338 }
339
340 #if defined(__IBMC__) && defined(_AIX) && defined(__64BIT__)
341 static inline size_t
342 #else
343 static size_t
344 #endif
345 Q512(size_t bitlen, const uint64_t *data, uint64_t *restrict p)
346 {
347 size_t bl;
348
349 for (bl = bitlen; bl >= EdonR512_BLOCK_BITSIZE;
350 bl -= EdonR512_BLOCK_BITSIZE, data += 16) {
351 uint64_t s0, s1, s2, s3, s4, s5, s6, s7, t0, t1, t2, t3, t4,
352 t5, t6, t7;
353 uint64_t p0, p1, p2, p3, p4, p5, p6, p7, q0, q1, q2, q3, q4,
354 q5, q6, q7;
355 const uint64_t defix = 0xaaaaaaaaaaaaaaaaull;
356 #if defined(MACHINE_IS_BIG_ENDIAN)
357 uint64_t swp0, swp1, swp2, swp3, swp4, swp5, swp6, swp7, swp8,
358 swp9, swp10, swp11, swp12, swp13, swp14, swp15;
359 #define d(j) swp##j
360 #define s64(j) ld_swap64((uint64_t *)data+j, swp##j)
361 #else
362 #define d(j) data[j]
363 #endif
364
365 /* First row of quasigroup e-transformations */
366 #if defined(MACHINE_IS_BIG_ENDIAN)
367 s64(8);
368 s64(9);
369 s64(10);
370 s64(11);
371 s64(12);
372 s64(13);
373 s64(14);
374 s64(15);
375 #endif
376 LS1_512(defix, d(15), d(14), d(13), d(12), d(11), d(10), d(9),
377 d(8));
378 #if defined(MACHINE_IS_BIG_ENDIAN)
379 s64(0);
380 s64(1);
381 s64(2);
382 s64(3);
383 s64(4);
384 s64(5);
385 s64(6);
386 s64(7);
387 #undef s64
388 #endif
389 LS2_512(defix, d(0), d(1), d(2), d(3), d(4), d(5), d(6), d(7));
390 quasi_exform512(p0, p1, p2, p3, p4, p5, p6, p7);
391
392 LS1_512(defix, p0, p1, p2, p3, p4, p5, p6, p7);
393 LS2_512(defix, d(8), d(9), d(10), d(11), d(12), d(13), d(14),
394 d(15));
395 quasi_exform512(q0, q1, q2, q3, q4, q5, q6, q7);
396
397 /* Second row of quasigroup e-transformations */
398 LS1_512(defix, p[8], p[9], p[10], p[11], p[12], p[13], p[14],
399 p[15]);
400 LS2_512(defix, p0, p1, p2, p3, p4, p5, p6, p7);
401 quasi_exform512(p0, p1, p2, p3, p4, p5, p6, p7);
402
403 LS1_512(defix, p0, p1, p2, p3, p4, p5, p6, p7);
404 LS2_512(defix, q0, q1, q2, q3, q4, q5, q6, q7);
405 quasi_exform512(q0, q1, q2, q3, q4, q5, q6, q7);
406
407 /* Third row of quasigroup e-transformations */
408 LS1_512(defix, p0, p1, p2, p3, p4, p5, p6, p7);
409 LS2_512(defix, p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
410 quasi_exform512(p0, p1, p2, p3, p4, p5, p6, p7);
411
412 LS1_512(defix, q0, q1, q2, q3, q4, q5, q6, q7);
413 LS2_512(defix, p0, p1, p2, p3, p4, p5, p6, p7);
414 quasi_exform512(q0, q1, q2, q3, q4, q5, q6, q7);
415
416 /* Fourth row of quasigroup e-transformations */
417 LS1_512(defix, d(7), d(6), d(5), d(4), d(3), d(2), d(1), d(0));
418 LS2_512(defix, p0, p1, p2, p3, p4, p5, p6, p7);
419 quasi_exform512(p0, p1, p2, p3, p4, p5, p6, p7);
420
421 LS1_512(defix, p0, p1, p2, p3, p4, p5, p6, p7);
422 LS2_512(defix, q0, q1, q2, q3, q4, q5, q6, q7);
423 quasi_exform512(q0, q1, q2, q3, q4, q5, q6, q7);
424
425 /* Edon-R tweak on the original SHA-3 Edon-R submission. */
426 p[0] ^= d(8) ^ p0;
427 p[1] ^= d(9) ^ p1;
428 p[2] ^= d(10) ^ p2;
429 p[3] ^= d(11) ^ p3;
430 p[4] ^= d(12) ^ p4;
431 p[5] ^= d(13) ^ p5;
432 p[6] ^= d(14) ^ p6;
433 p[7] ^= d(15) ^ p7;
434 p[8] ^= d(0) ^ q0;
435 p[9] ^= d(1) ^ q1;
436 p[10] ^= d(2) ^ q2;
437 p[11] ^= d(3) ^ q3;
438 p[12] ^= d(4) ^ q4;
439 p[13] ^= d(5) ^ q5;
440 p[14] ^= d(6) ^ q6;
441 p[15] ^= d(7) ^ q7;
442 }
443
444 #undef d
445 return (bitlen - bl);
446 }
447
448 void
449 EdonRInit(EdonRState *state, size_t hashbitlen)
450 {
451 ASSERT(EDONR_VALID_HASHBITLEN(hashbitlen));
452 switch (hashbitlen) {
453 case 224:
454 state->hashbitlen = 224;
455 state->bits_processed = 0;
456 state->unprocessed_bits = 0;
457 bcopy(i224p2, hashState224(state)->DoublePipe,
458 16 * sizeof (uint32_t));
459 break;
460
461 case 256:
462 state->hashbitlen = 256;
463 state->bits_processed = 0;
464 state->unprocessed_bits = 0;
465 bcopy(i256p2, hashState256(state)->DoublePipe,
466 16 * sizeof (uint32_t));
467 break;
468
469 case 384:
470 state->hashbitlen = 384;
471 state->bits_processed = 0;
472 state->unprocessed_bits = 0;
473 bcopy(i384p2, hashState384(state)->DoublePipe,
474 16 * sizeof (uint64_t));
475 break;
476
477 case 512:
478 state->hashbitlen = 512;
479 state->bits_processed = 0;
480 state->unprocessed_bits = 0;
481 bcopy(i512p2, hashState224(state)->DoublePipe,
482 16 * sizeof (uint64_t));
483 break;
484 }
485 }
486
487
488 void
489 EdonRUpdate(EdonRState *state, const uint8_t *data, size_t databitlen)
490 {
491 uint32_t *data32;
492 uint64_t *data64;
493
494 size_t bits_processed;
495
496 ASSERT(EDONR_VALID_HASHBITLEN(state->hashbitlen));
497 switch (state->hashbitlen) {
498 case 224:
499 case 256:
500 if (state->unprocessed_bits > 0) {
501 /* LastBytes = databitlen / 8 */
502 int LastBytes = (int)databitlen >> 3;
503
504 ASSERT(state->unprocessed_bits + databitlen <=
505 EdonR256_BLOCK_SIZE * 8);
506
507 bcopy(data, hashState256(state)->LastPart
508 + (state->unprocessed_bits >> 3), LastBytes);
509 state->unprocessed_bits += (int)databitlen;
510 databitlen = state->unprocessed_bits;
511 /* LINTED E_BAD_PTR_CAST_ALIGN */
512 data32 = (uint32_t *)hashState256(state)->LastPart;
513 } else
514 /* LINTED E_BAD_PTR_CAST_ALIGN */
515 data32 = (uint32_t *)data;
516
517 bits_processed = Q256(databitlen, data32,
518 hashState256(state)->DoublePipe);
519 state->bits_processed += bits_processed;
520 databitlen -= bits_processed;
521 state->unprocessed_bits = (int)databitlen;
522 if (databitlen > 0) {
523 /* LastBytes = Ceil(databitlen / 8) */
524 int LastBytes =
525 ((~(((-(int)databitlen) >> 3) & 0x01ff)) +
526 1) & 0x01ff;
527
528 data32 += bits_processed >> 5; /* byte size update */
529 bcopy(data32, hashState256(state)->LastPart, LastBytes);
530 }
531 break;
532
533 case 384:
534 case 512:
535 if (state->unprocessed_bits > 0) {
536 /* LastBytes = databitlen / 8 */
537 int LastBytes = (int)databitlen >> 3;
538
539 ASSERT(state->unprocessed_bits + databitlen <=
540 EdonR512_BLOCK_SIZE * 8);
541
542 bcopy(data, hashState512(state)->LastPart
543 + (state->unprocessed_bits >> 3), LastBytes);
544 state->unprocessed_bits += (int)databitlen;
545 databitlen = state->unprocessed_bits;
546 /* LINTED E_BAD_PTR_CAST_ALIGN */
547 data64 = (uint64_t *)hashState512(state)->LastPart;
548 } else
549 /* LINTED E_BAD_PTR_CAST_ALIGN */
550 data64 = (uint64_t *)data;
551
552 bits_processed = Q512(databitlen, data64,
553 hashState512(state)->DoublePipe);
554 state->bits_processed += bits_processed;
555 databitlen -= bits_processed;
556 state->unprocessed_bits = (int)databitlen;
557 if (databitlen > 0) {
558 /* LastBytes = Ceil(databitlen / 8) */
559 int LastBytes =
560 ((~(((-(int)databitlen) >> 3) & 0x03ff)) +
561 1) & 0x03ff;
562
563 data64 += bits_processed >> 6; /* byte size update */
564 bcopy(data64, hashState512(state)->LastPart, LastBytes);
565 }
566 break;
567 }
568 }
569
570 void
571 EdonRFinal(EdonRState *state, uint8_t *hashval)
572 {
573 uint32_t *data32;
574 uint64_t *data64, num_bits;
575
576 size_t databitlen;
577 int LastByte, PadOnePosition;
578
579 num_bits = state->bits_processed + state->unprocessed_bits;
580 ASSERT(EDONR_VALID_HASHBITLEN(state->hashbitlen));
581 switch (state->hashbitlen) {
582 case 224:
583 case 256:
584 LastByte = (int)state->unprocessed_bits >> 3;
585 PadOnePosition = 7 - (state->unprocessed_bits & 0x07);
586 hashState256(state)->LastPart[LastByte] =
587 (hashState256(state)->LastPart[LastByte]
588 & (0xff << (PadOnePosition + 1))) ^
589 (0x01 << PadOnePosition);
590 /* LINTED E_BAD_PTR_CAST_ALIGN */
591 data64 = (uint64_t *)hashState256(state)->LastPart;
592
593 if (state->unprocessed_bits < 448) {
594 (void) memset((hashState256(state)->LastPart) +
595 LastByte + 1, 0x00,
596 EdonR256_BLOCK_SIZE - LastByte - 9);
597 databitlen = EdonR256_BLOCK_SIZE * 8;
598 #if defined(MACHINE_IS_BIG_ENDIAN)
599 st_swap64(num_bits, data64 + 7);
600 #else
601 data64[7] = num_bits;
602 #endif
603 } else {
604 (void) memset((hashState256(state)->LastPart) +
605 LastByte + 1, 0x00,
606 EdonR256_BLOCK_SIZE * 2 - LastByte - 9);
607 databitlen = EdonR256_BLOCK_SIZE * 16;
608 #if defined(MACHINE_IS_BIG_ENDIAN)
609 st_swap64(num_bits, data64 + 15);
610 #else
611 data64[15] = num_bits;
612 #endif
613 }
614
615 /* LINTED E_BAD_PTR_CAST_ALIGN */
616 data32 = (uint32_t *)hashState256(state)->LastPart;
617 state->bits_processed += Q256(databitlen, data32,
618 hashState256(state)->DoublePipe);
619 break;
620
621 case 384:
622 case 512:
623 LastByte = (int)state->unprocessed_bits >> 3;
624 PadOnePosition = 7 - (state->unprocessed_bits & 0x07);
625 hashState512(state)->LastPart[LastByte] =
626 (hashState512(state)->LastPart[LastByte]
627 & (0xff << (PadOnePosition + 1))) ^
628 (0x01 << PadOnePosition);
629 /* LINTED E_BAD_PTR_CAST_ALIGN */
630 data64 = (uint64_t *)hashState512(state)->LastPart;
631
632 if (state->unprocessed_bits < 960) {
633 (void) memset((hashState512(state)->LastPart) +
634 LastByte + 1, 0x00,
635 EdonR512_BLOCK_SIZE - LastByte - 9);
636 databitlen = EdonR512_BLOCK_SIZE * 8;
637 #if defined(MACHINE_IS_BIG_ENDIAN)
638 st_swap64(num_bits, data64 + 15);
639 #else
640 data64[15] = num_bits;
641 #endif
642 } else {
643 (void) memset((hashState512(state)->LastPart) +
644 LastByte + 1, 0x00,
645 EdonR512_BLOCK_SIZE * 2 - LastByte - 9);
646 databitlen = EdonR512_BLOCK_SIZE * 16;
647 #if defined(MACHINE_IS_BIG_ENDIAN)
648 st_swap64(num_bits, data64 + 31);
649 #else
650 data64[31] = num_bits;
651 #endif
652 }
653
654 state->bits_processed += Q512(databitlen, data64,
655 hashState512(state)->DoublePipe);
656 break;
657 }
658
659 switch (state->hashbitlen) {
660 case 224: {
661 #if defined(MACHINE_IS_BIG_ENDIAN)
662 /* LINTED: pointer cast may result in improper alignment */
663 uint32_t *d32 = (uint32_t *)hashval;
664 uint32_t *s32 = hashState224(state)->DoublePipe + 9;
665 int j;
666
667 for (j = 0; j < EdonR224_DIGEST_SIZE >> 2; j++)
668 st_swap32(s32[j], d32 + j);
669 #else
670 bcopy(hashState256(state)->DoublePipe + 9, hashval,
671 EdonR224_DIGEST_SIZE);
672 #endif
673 break;
674 }
675 case 256: {
676 #if defined(MACHINE_IS_BIG_ENDIAN)
677 /* LINTED: pointer cast may result in improper alignment */
678 uint32_t *d32 = (uint32_t *)hashval;
679 uint32_t *s32 = hashState224(state)->DoublePipe + 8;
680 int j;
681
682 for (j = 0; j < EdonR256_DIGEST_SIZE >> 2; j++)
683 st_swap32(s32[j], d32 + j);
684 #else
685 bcopy(hashState256(state)->DoublePipe + 8, hashval,
686 EdonR256_DIGEST_SIZE);
687 #endif
688 break;
689 }
690 case 384: {
691 #if defined(MACHINE_IS_BIG_ENDIAN)
692 /* LINTED: pointer cast may result in improper alignment */
693 uint64_t *d64 = (uint64_t *)hashval;
694 uint64_t *s64 = hashState384(state)->DoublePipe + 10;
695 int j;
696
697 for (j = 0; j < EdonR384_DIGEST_SIZE >> 3; j++)
698 st_swap64(s64[j], d64 + j);
699 #else
700 bcopy(hashState384(state)->DoublePipe + 10, hashval,
701 EdonR384_DIGEST_SIZE);
702 #endif
703 break;
704 }
705 case 512: {
706 #if defined(MACHINE_IS_BIG_ENDIAN)
707 /* LINTED: pointer cast may result in improper alignment */
708 uint64_t *d64 = (uint64_t *)hashval;
709 uint64_t *s64 = hashState512(state)->DoublePipe + 8;
710 int j;
711
712 for (j = 0; j < EdonR512_DIGEST_SIZE >> 3; j++)
713 st_swap64(s64[j], d64 + j);
714 #else
715 bcopy(hashState512(state)->DoublePipe + 8, hashval,
716 EdonR512_DIGEST_SIZE);
717 #endif
718 break;
719 }
720 }
721 }
722
723
724 void
725 EdonRHash(size_t hashbitlen, const uint8_t *data, size_t databitlen,
726 uint8_t *hashval)
727 {
728 EdonRState state;
729
730 EdonRInit(&state, hashbitlen);
731 EdonRUpdate(&state, data, databitlen);
732 EdonRFinal(&state, hashval);
733 }