1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
|
/*
* Threefish-512 using AVX2
* (C) 2013 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#include <botan/internal/block_utils.h>
#include <botan/threefish_avx2.h>
#include <botan/cpuid.h>
#include <immintrin.h>
namespace Botan {
BOTAN_REGISTER_BLOCK_CIPHER_NOARGS_IF(CPUID::has_avx2(), Threefish_512_AVX2, "Threefish-512",
"avx2", BOTAN_SIMD_ALGORITHM_PRIO);
namespace {
inline void interleave_epi64(__m256i& X0, __m256i& X1)
{
// interleave X0 and X1 qwords
// (X0,X1,X2,X3),(X4,X5,X6,X7) -> (X0,X2,X4,X6),(X1,X3,X5,X7)
const __m256i T0 = _mm256_unpacklo_epi64(X0, X1);
const __m256i T1 = _mm256_unpackhi_epi64(X0, X1);
X0 = _mm256_permute4x64_epi64(T0, _MM_SHUFFLE(3,1,2,0));
X1 = _mm256_permute4x64_epi64(T1, _MM_SHUFFLE(3,1,2,0));
}
inline void deinterleave_epi64(__m256i& X0, __m256i& X1)
{
const __m256i T0 = _mm256_permute4x64_epi64(X0, _MM_SHUFFLE(3,1,2,0));
const __m256i T1 = _mm256_permute4x64_epi64(X1, _MM_SHUFFLE(3,1,2,0));
X0 = _mm256_unpacklo_epi64(T0, T1);
X1 = _mm256_unpackhi_epi64(T0, T1);
}
}
void Threefish_512_AVX2::encrypt_n(const byte in[], byte out[], size_t blocks) const
{
const u64bit* K = &get_K()[0];
const u64bit* T_64 = &get_T()[0];
const __m256i ROTATE_1 = _mm256_set_epi64x(37,19,36,46);
const __m256i ROTATE_2 = _mm256_set_epi64x(42,14,27,33);
const __m256i ROTATE_3 = _mm256_set_epi64x(39,36,49,17);
const __m256i ROTATE_4 = _mm256_set_epi64x(56,54, 9,44);
const __m256i ROTATE_5 = _mm256_set_epi64x(24,34,30,39);
const __m256i ROTATE_6 = _mm256_set_epi64x(17,10,50,13);
const __m256i ROTATE_7 = _mm256_set_epi64x(43,39,29,25);
const __m256i ROTATE_8 = _mm256_set_epi64x(22,56,35, 8);
#define THREEFISH_ROUND(X0, X1, SHL) \
do { \
const __m256i SHR = _mm256_sub_epi64(_mm256_set1_epi64x(64), SHL); \
X0 = _mm256_add_epi64(X0, X1); \
X1 = _mm256_or_si256(_mm256_sllv_epi64(X1, SHL), _mm256_srlv_epi64(X1, SHR)); \
X1 = _mm256_xor_si256(X1, X0); \
X0 = _mm256_permute4x64_epi64(X0, _MM_SHUFFLE(0, 3, 2, 1)); \
X1 = _mm256_permute4x64_epi64(X1, _MM_SHUFFLE(1, 2, 3, 0)); \
} while(0)
#define THREEFISH_ROUND_2(X0, X1, X2, X3, SHL) \
do { \
const __m256i SHR = _mm256_sub_epi64(_mm256_set1_epi64x(64), SHL); \
X0 = _mm256_add_epi64(X0, X1); \
X2 = _mm256_add_epi64(X2, X3); \
X1 = _mm256_or_si256(_mm256_sllv_epi64(X1, SHL), _mm256_srlv_epi64(X1, SHR)); \
X3 = _mm256_or_si256(_mm256_sllv_epi64(X3, SHL), _mm256_srlv_epi64(X3, SHR)); \
X1 = _mm256_xor_si256(X1, X0); \
X3 = _mm256_xor_si256(X3, X2); \
X0 = _mm256_permute4x64_epi64(X0, _MM_SHUFFLE(0, 3, 2, 1)); \
X2 = _mm256_permute4x64_epi64(X2, _MM_SHUFFLE(0, 3, 2, 1)); \
X1 = _mm256_permute4x64_epi64(X1, _MM_SHUFFLE(1, 2, 3, 0)); \
X3 = _mm256_permute4x64_epi64(X3, _MM_SHUFFLE(1, 2, 3, 0)); \
} while(0)
#define THREEFISH_INJECT_KEY(X0, X1, R, K0, K1, T0I, T1I) \
do { \
const __m256i T0 = _mm256_permute4x64_epi64(T, _MM_SHUFFLE(T0I, 0, 0, 0)); \
const __m256i T1 = _mm256_permute4x64_epi64(T, _MM_SHUFFLE(0, T1I, 0, 0)); \
X0 = _mm256_add_epi64(X0, K0); \
X1 = _mm256_add_epi64(X1, K1); \
X1 = _mm256_add_epi64(X1, R); \
X0 = _mm256_add_epi64(X0, T0); \
X1 = _mm256_add_epi64(X1, T1); \
R = _mm256_add_epi64(R, ONE); \
} while(0)
#define THREEFISH_INJECT_KEY_2(X0, X1, X2, X3, R, K0, K1, T0I, T1I) \
do { \
const __m256i T0 = _mm256_permute4x64_epi64(T, _MM_SHUFFLE(T0I, 0, 0, 0)); \
__m256i T1 = _mm256_permute4x64_epi64(T, _MM_SHUFFLE(0, T1I, 0, 0)); \
X0 = _mm256_add_epi64(X0, K0); \
X2 = _mm256_add_epi64(X2, K0); \
X1 = _mm256_add_epi64(X1, K1); \
X3 = _mm256_add_epi64(X3, K1); \
T1 = _mm256_add_epi64(T1, R); \
X0 = _mm256_add_epi64(X0, T0); \
X2 = _mm256_add_epi64(X2, T0); \
X1 = _mm256_add_epi64(X1, T1); \
X3 = _mm256_add_epi64(X3, T1); \
R = _mm256_add_epi64(R, ONE); \
} while(0)
#define THREEFISH_ENC_8_ROUNDS(X0, X1, R, K1, K2, K3, T0, T1, T2) \
do { \
THREEFISH_ROUND(X0, X1, ROTATE_1); \
THREEFISH_ROUND(X0, X1, ROTATE_2); \
THREEFISH_ROUND(X0, X1, ROTATE_3); \
THREEFISH_ROUND(X0, X1, ROTATE_4); \
THREEFISH_INJECT_KEY(X0, X1, R, K1, K2, T0, T1); \
\
THREEFISH_ROUND(X0, X1, ROTATE_5); \
THREEFISH_ROUND(X0, X1, ROTATE_6); \
THREEFISH_ROUND(X0, X1, ROTATE_7); \
THREEFISH_ROUND(X0, X1, ROTATE_8); \
THREEFISH_INJECT_KEY(X0, X1, R, K2, K3, T2, T0); \
} while(0)
#define THREEFISH_ENC_2_8_ROUNDS(X0, X1, X2, X3, R, K1, K2, K3, T0, T1, T2) \
do { \
THREEFISH_ROUND_2(X0, X1, X2, X3, ROTATE_1); \
THREEFISH_ROUND_2(X0, X1, X2, X3, ROTATE_2); \
THREEFISH_ROUND_2(X0, X1, X2, X3, ROTATE_3); \
THREEFISH_ROUND_2(X0, X1, X2, X3, ROTATE_4); \
THREEFISH_INJECT_KEY_2(X0, X1, X2, X3, R, K1, K2, T0, T1); \
\
THREEFISH_ROUND_2(X0, X1, X2, X3, ROTATE_5); \
THREEFISH_ROUND_2(X0, X1, X2, X3, ROTATE_6); \
THREEFISH_ROUND_2(X0, X1, X2, X3, ROTATE_7); \
THREEFISH_ROUND_2(X0, X1, X2, X3, ROTATE_8); \
THREEFISH_INJECT_KEY_2(X0, X1, X2, X3, R, K2, K3, T2, T0); \
} while(0)
/*
v1.0 key schedule: 9 ymm registers (only need 2 or 3)
(0,1,2,3),(4,5,6,7) [8]
then mutating with vpermq
*/
const __m256i K0 = _mm256_set_epi64x(K[6], K[4], K[2], K[0]);
const __m256i K1 = _mm256_set_epi64x(K[7], K[5], K[3], K[1]);
const __m256i K2 = _mm256_set_epi64x(K[8], K[6], K[4], K[2]);
const __m256i K3 = _mm256_set_epi64x(K[0], K[7], K[5], K[3]);
const __m256i K4 = _mm256_set_epi64x(K[1], K[8], K[6], K[4]);
const __m256i K5 = _mm256_set_epi64x(K[2], K[0], K[7], K[5]);
const __m256i K6 = _mm256_set_epi64x(K[3], K[1], K[8], K[6]);
const __m256i K7 = _mm256_set_epi64x(K[4], K[2], K[0], K[7]);
const __m256i K8 = _mm256_set_epi64x(K[5], K[3], K[1], K[8]);
const __m256i ONE = _mm256_set_epi64x(1, 0, 0, 0);
const __m256i* in_mm = reinterpret_cast<const __m256i*>(in);
__m256i* out_mm = reinterpret_cast<__m256i*>(out);
while(blocks >= 2)
{
__m256i X0 = _mm256_loadu_si256(in_mm++);
__m256i X1 = _mm256_loadu_si256(in_mm++);
__m256i X2 = _mm256_loadu_si256(in_mm++);
__m256i X3 = _mm256_loadu_si256(in_mm++);
const __m256i T = _mm256_set_epi64x(T_64[0], T_64[1], T_64[2], 0);
__m256i R = _mm256_set_epi64x(0, 0, 0, 0);
interleave_epi64(X0, X1);
interleave_epi64(X2, X3);
THREEFISH_INJECT_KEY_2(X0, X1, X2, X3, R, K0, K1, 2, 3);
THREEFISH_ENC_2_8_ROUNDS(X0, X1, X2, X3, R, K1,K2,K3, 1, 2, 3);
THREEFISH_ENC_2_8_ROUNDS(X0, X1, X2, X3, R, K3,K4,K5, 2, 3, 1);
THREEFISH_ENC_2_8_ROUNDS(X0, X1, X2, X3, R, K5,K6,K7, 3, 1, 2);
THREEFISH_ENC_2_8_ROUNDS(X0, X1, X2, X3, R, K7,K8,K0, 1, 2, 3);
THREEFISH_ENC_2_8_ROUNDS(X0, X1, X2, X3, R, K0,K1,K2, 2, 3, 1);
THREEFISH_ENC_2_8_ROUNDS(X0, X1, X2, X3, R, K2,K3,K4, 3, 1, 2);
THREEFISH_ENC_2_8_ROUNDS(X0, X1, X2, X3, R, K4,K5,K6, 1, 2, 3);
THREEFISH_ENC_2_8_ROUNDS(X0, X1, X2, X3, R, K6,K7,K8, 2, 3, 1);
THREEFISH_ENC_2_8_ROUNDS(X0, X1, X2, X3, R, K8,K0,K1, 3, 1, 2);
deinterleave_epi64(X0, X1);
deinterleave_epi64(X2, X3);
_mm256_storeu_si256(out_mm++, X0);
_mm256_storeu_si256(out_mm++, X1);
_mm256_storeu_si256(out_mm++, X2);
_mm256_storeu_si256(out_mm++, X3);
blocks -= 2;
}
for(size_t i = 0; i != blocks; ++i)
{
__m256i X0 = _mm256_loadu_si256(in_mm++);
__m256i X1 = _mm256_loadu_si256(in_mm++);
const __m256i T = _mm256_set_epi64x(T_64[0], T_64[1], T_64[2], 0);
__m256i R = _mm256_set_epi64x(0, 0, 0, 0);
interleave_epi64(X0, X1);
THREEFISH_INJECT_KEY(X0, X1, R, K0, K1, 2, 3);
THREEFISH_ENC_8_ROUNDS(X0, X1, R, K1,K2,K3, 1, 2, 3);
THREEFISH_ENC_8_ROUNDS(X0, X1, R, K3,K4,K5, 2, 3, 1);
THREEFISH_ENC_8_ROUNDS(X0, X1, R, K5,K6,K7, 3, 1, 2);
THREEFISH_ENC_8_ROUNDS(X0, X1, R, K7,K8,K0, 1, 2, 3);
THREEFISH_ENC_8_ROUNDS(X0, X1, R, K0,K1,K2, 2, 3, 1);
THREEFISH_ENC_8_ROUNDS(X0, X1, R, K2,K3,K4, 3, 1, 2);
THREEFISH_ENC_8_ROUNDS(X0, X1, R, K4,K5,K6, 1, 2, 3);
THREEFISH_ENC_8_ROUNDS(X0, X1, R, K6,K7,K8, 2, 3, 1);
THREEFISH_ENC_8_ROUNDS(X0, X1, R, K8,K0,K1, 3, 1, 2);
deinterleave_epi64(X0, X1);
_mm256_storeu_si256(out_mm++, X0);
_mm256_storeu_si256(out_mm++, X1);
}
#undef THREEFISH_ENC_8_ROUNDS
#undef THREEFISH_ROUND
#undef THREEFISH_INJECT_KEY
#undef THREEFISH_ENC_2_8_ROUNDS
#undef THREEFISH_ROUND_2
#undef THREEFISH_INJECT_KEY_2
}
void Threefish_512_AVX2::decrypt_n(const byte in[], byte out[], size_t blocks) const
{
const u64bit* K = &get_K()[0];
const u64bit* T_64 = &get_T()[0];
const __m256i ROTATE_1 = _mm256_set_epi64x(37,19,36,46);
const __m256i ROTATE_2 = _mm256_set_epi64x(42,14,27,33);
const __m256i ROTATE_3 = _mm256_set_epi64x(39,36,49,17);
const __m256i ROTATE_4 = _mm256_set_epi64x(56,54, 9,44);
const __m256i ROTATE_5 = _mm256_set_epi64x(24,34,30,39);
const __m256i ROTATE_6 = _mm256_set_epi64x(17,10,50,13);
const __m256i ROTATE_7 = _mm256_set_epi64x(43,39,29,25);
const __m256i ROTATE_8 = _mm256_set_epi64x(22,56,35, 8);
#define THREEFISH_ROUND(X0, X1, SHR) \
do { \
const __m256i SHL = _mm256_sub_epi64(_mm256_set1_epi64x(64), SHR); \
X0 = _mm256_permute4x64_epi64(X0, _MM_SHUFFLE(2, 1, 0, 3)); \
X1 = _mm256_permute4x64_epi64(X1, _MM_SHUFFLE(1, 2, 3, 0)); \
X1 = _mm256_xor_si256(X1, X0); \
X1 = _mm256_or_si256(_mm256_sllv_epi64(X1, SHL), _mm256_srlv_epi64(X1, SHR)); \
X0 = _mm256_sub_epi64(X0, X1); \
} while(0)
#define THREEFISH_INJECT_KEY(X0, X1, R, K0, K1, T0I, T1I) \
do { \
const __m256i T0 = _mm256_permute4x64_epi64(T, _MM_SHUFFLE(T0I, 0, 0, 0)); \
const __m256i T1 = _mm256_permute4x64_epi64(T, _MM_SHUFFLE(0, T1I, 0, 0)); \
X0 = _mm256_sub_epi64(X0, K0); \
X1 = _mm256_sub_epi64(X1, K1); \
X1 = _mm256_sub_epi64(X1, R); \
R = _mm256_sub_epi64(R, ONE); \
X0 = _mm256_sub_epi64(X0, T0); \
X1 = _mm256_sub_epi64(X1, T1); \
} while(0)
#define THREEFISH_DEC_8_ROUNDS(X0, X1, R, K1, K2, K3, T0, T1, T2) \
do { \
THREEFISH_INJECT_KEY(X0, X1, R, K2, K3, T2, T0); \
THREEFISH_ROUND(X0, X1, ROTATE_8); \
THREEFISH_ROUND(X0, X1, ROTATE_7); \
THREEFISH_ROUND(X0, X1, ROTATE_6); \
THREEFISH_ROUND(X0, X1, ROTATE_5); \
\
THREEFISH_INJECT_KEY(X0, X1, R, K1, K2, T0, T1); \
THREEFISH_ROUND(X0, X1, ROTATE_4); \
THREEFISH_ROUND(X0, X1, ROTATE_3); \
THREEFISH_ROUND(X0, X1, ROTATE_2); \
THREEFISH_ROUND(X0, X1, ROTATE_1); \
} while(0)
/*
v1.0 key schedule: 9 ymm registers (only need 2 or 3)
(0,1,2,3),(4,5,6,7) [8]
then mutating with vpermq
*/
const __m256i K0 = _mm256_set_epi64x(K[6], K[4], K[2], K[0]);
const __m256i K1 = _mm256_set_epi64x(K[7], K[5], K[3], K[1]);
const __m256i K2 = _mm256_set_epi64x(K[8], K[6], K[4], K[2]);
const __m256i K3 = _mm256_set_epi64x(K[0], K[7], K[5], K[3]);
const __m256i K4 = _mm256_set_epi64x(K[1], K[8], K[6], K[4]);
const __m256i K5 = _mm256_set_epi64x(K[2], K[0], K[7], K[5]);
const __m256i K6 = _mm256_set_epi64x(K[3], K[1], K[8], K[6]);
const __m256i K7 = _mm256_set_epi64x(K[4], K[2], K[0], K[7]);
const __m256i K8 = _mm256_set_epi64x(K[5], K[3], K[1], K[8]);
const __m256i ONE = _mm256_set_epi64x(1, 0, 0, 0);
const __m256i* in_mm = reinterpret_cast<const __m256i*>(in);
__m256i* out_mm = reinterpret_cast<__m256i*>(out);
for(size_t i = 0; i != blocks; ++i)
{
__m256i X0 = _mm256_loadu_si256(in_mm++);
__m256i X1 = _mm256_loadu_si256(in_mm++);
const __m256i T = _mm256_set_epi64x(T_64[0], T_64[1], T_64[2], 0);
__m256i R = _mm256_set_epi64x(18, 0, 0, 0);
interleave_epi64(X0, X1);
THREEFISH_DEC_8_ROUNDS(X0, X1, R, K8,K0,K1, 3, 1, 2);
THREEFISH_DEC_8_ROUNDS(X0, X1, R, K6,K7,K8, 2, 3, 1);
THREEFISH_DEC_8_ROUNDS(X0, X1, R, K4,K5,K6, 1, 2, 3);
THREEFISH_DEC_8_ROUNDS(X0, X1, R, K2,K3,K4, 3, 1, 2);
THREEFISH_DEC_8_ROUNDS(X0, X1, R, K0,K1,K2, 2, 3, 1);
THREEFISH_DEC_8_ROUNDS(X0, X1, R, K7,K8,K0, 1, 2, 3);
THREEFISH_DEC_8_ROUNDS(X0, X1, R, K5,K6,K7, 3, 1, 2);
THREEFISH_DEC_8_ROUNDS(X0, X1, R, K3,K4,K5, 2, 3, 1);
THREEFISH_DEC_8_ROUNDS(X0, X1, R, K1,K2,K3, 1, 2, 3);
THREEFISH_INJECT_KEY(X0, X1, R, K0, K1, 2, 3);
deinterleave_epi64(X0, X1);
_mm256_storeu_si256(out_mm++, X0);
_mm256_storeu_si256(out_mm++, X1);
}
#undef THREEFISH_DEC_8_ROUNDS
#undef THREEFISH_ROUND
#undef THREEFISH_INJECT_KEY
#undef THREEFISH_DEC_2_8_ROUNDS
#undef THREEFISH_ROUND_2
#undef THREEFISH_INJECT_KEY_2
}
}
|
