Crypto++ 8.0 Free C++ class library of cryptographic schemes

simon128_simd.cpp
1 // simon-simd.cpp - written and placed in the public domain by Jeffrey Walton
2 //
3 // This source file uses intrinsics and built-ins to gain access to
4 // SSSE3, ARM NEON and ARMv8a, and Power7 Altivec instructions. A separate
5 // source file is needed because additional CXXFLAGS are required to enable
6 // the appropriate instructions sets in some build configurations.
7
8 #include "pch.h"
9 #include "config.h"
10
11 #include "simon.h"
12 #include "misc.h"
13
14 // Uncomment for benchmarking C++ against SSE or NEON.
15 // Do so in both simon.cpp and simon-simd.cpp.
16 // #undef CRYPTOPP_SSSE3_AVAILABLE
17 // #undef CRYPTOPP_ARM_NEON_AVAILABLE
18
19 #if (CRYPTOPP_SSSE3_AVAILABLE)
20 # include "adv_simd.h"
21 # include <pmmintrin.h>
22 # include <tmmintrin.h>
23 #endif
24
25 #if defined(__XOP__)
26 # include <ammintrin.h>
27 #endif
28
29 #if defined(__AVX512F__)
30 # define CRYPTOPP_AVX512_ROTATE 1
31 # include <immintrin.h>
32 #endif
33
34 // C1189: error: This header is specific to ARM targets
35 #if (CRYPTOPP_ARM_NEON_AVAILABLE)
36 # include "adv_simd.h"
37 # ifndef _M_ARM64
38 # include <arm_neon.h>
39 # endif
40 #endif
41
42 #if (CRYPTOPP_ARM_ACLE_AVAILABLE)
43 # include <stdint.h>
44 # include <arm_acle.h>
45 #endif
46
47 #if defined(CRYPTOPP_POWER7_AVAILABLE)
48 # include "adv_simd.h"
49 # include "ppc_simd.h"
50 #endif
51
52 // Squash MS LNK4221 and libtool warnings
53 extern const char SIMON128_SIMD_FNAME[] = __FILE__;
54
55 ANONYMOUS_NAMESPACE_BEGIN
56
57 using CryptoPP::byte;
58 using CryptoPP::word32;
59 using CryptoPP::word64;
60 using CryptoPP::vec_swap; // SunCC
61
62 // *************************** ARM NEON ************************** //
63
64 #if (CRYPTOPP_ARM_NEON_AVAILABLE)
65
66 // Missing from Microsoft's ARM A-32 implementation
67 #if defined(_MSC_VER) && !defined(_M_ARM64)
68 inline uint64x2_t vld1q_dup_u64(const uint64_t* ptr)
69 {
70 return vmovq_n_u64(*ptr);
71 }
72 #endif
73
74 template <class T>
75 inline T UnpackHigh64(const T& a, const T& b)
76 {
77 const uint64x1_t x(vget_high_u64((uint64x2_t)a));
78 const uint64x1_t y(vget_high_u64((uint64x2_t)b));
79 return (T)vcombine_u64(x, y);
80 }
81
82 template <class T>
83 inline T UnpackLow64(const T& a, const T& b)
84 {
85 const uint64x1_t x(vget_low_u64((uint64x2_t)a));
86 const uint64x1_t y(vget_low_u64((uint64x2_t)b));
87 return (T)vcombine_u64(x, y);
88 }
89
90 template <unsigned int R>
91 inline uint64x2_t RotateLeft64(const uint64x2_t& val)
92 {
93 const uint64x2_t a(vshlq_n_u64(val, R));
94 const uint64x2_t b(vshrq_n_u64(val, 64 - R));
95 return vorrq_u64(a, b);
96 }
97
98 template <unsigned int R>
99 inline uint64x2_t RotateRight64(const uint64x2_t& val)
100 {
101 const uint64x2_t a(vshlq_n_u64(val, 64 - R));
102 const uint64x2_t b(vshrq_n_u64(val, R));
103 return vorrq_u64(a, b);
104 }
105
106 #if defined(__aarch32__) || defined(__aarch64__)
107 // Faster than two Shifts and an Or. Thanks to Louis Wingers and Bryan Weeks.
108 template <>
109 inline uint64x2_t RotateLeft64<8>(const uint64x2_t& val)
110 {
111 #if (CRYPTOPP_BIG_ENDIAN)
112 const uint8_t maskb[16] = { 14,13,12,11, 10,9,8,15, 6,5,4,3, 2,1,0,7 };
113 const uint8x16_t mask = vld1q_u8(maskb);
114 #else
115 const uint8_t maskb[16] = { 7,0,1,2, 3,4,5,6, 15,8,9,10, 11,12,13,14 };
116 const uint8x16_t mask = vld1q_u8(maskb);
117 #endif
118
119 return vreinterpretq_u64_u8(
120 vqtbl1q_u8(vreinterpretq_u8_u64(val), mask));
121 }
122
123 // Faster than two Shifts and an Or. Thanks to Louis Wingers and Bryan Weeks.
124 template <>
125 inline uint64x2_t RotateRight64<8>(const uint64x2_t& val)
126 {
127 #if (CRYPTOPP_BIG_ENDIAN)
128 const uint8_t maskb[16] = { 8,15,14,13, 12,11,10,9, 0,7,6,5, 4,3,2,1 };
129 const uint8x16_t mask = vld1q_u8(maskb);
130 #else
131 const uint8_t maskb[16] = { 1,2,3,4, 5,6,7,0, 9,10,11,12, 13,14,15,8 };
132 const uint8x16_t mask = vld1q_u8(maskb);
133 #endif
134
135 return vreinterpretq_u64_u8(
136 vqtbl1q_u8(vreinterpretq_u8_u64(val), mask));
137 }
138 #endif
139
140 inline uint64x2_t SIMON128_f(const uint64x2_t& val)
141 {
142 return veorq_u64(RotateLeft64<2>(val),
143 vandq_u64(RotateLeft64<1>(val), RotateLeft64<8>(val)));
144 }
145
146 inline void SIMON128_Enc_Block(uint64x2_t &block0, uint64x2_t &block1,
147 const word64 *subkeys, unsigned int rounds)
148 {
149 // [A1 A2][B1 B2] ... => [A1 B1][A2 B2] ...
150 uint64x2_t x1 = UnpackHigh64(block0, block1);
151 uint64x2_t y1 = UnpackLow64(block0, block1);
152
153 for (int i = 0; i < static_cast<int>(rounds & ~1)-1; i += 2)
154 {
155 const uint64x2_t rk1 = vld1q_dup_u64(subkeys+i);
156 y1 = veorq_u64(veorq_u64(y1, SIMON128_f(x1)), rk1);
157
158 const uint64x2_t rk2 = vld1q_dup_u64(subkeys+i+1);
159 x1 = veorq_u64(veorq_u64(x1, SIMON128_f(y1)), rk2);
160 }
161
162 if (rounds & 1)
163 {
164 const uint64x2_t rk = vld1q_dup_u64(subkeys+rounds-1);
165
166 y1 = veorq_u64(veorq_u64(y1, SIMON128_f(x1)), rk);
167 std::swap(x1, y1);
168 }
169
170 // [A1 B1][A2 B2] ... => [A1 A2][B1 B2] ...
171 block0 = UnpackLow64(y1, x1);
172 block1 = UnpackHigh64(y1, x1);
173 }
174
175 inline void SIMON128_Enc_6_Blocks(uint64x2_t &block0, uint64x2_t &block1,
176 uint64x2_t &block2, uint64x2_t &block3, uint64x2_t &block4, uint64x2_t &block5,
177 const word64 *subkeys, unsigned int rounds)
178 {
179 // [A1 A2][B1 B2] ... => [A1 B1][A2 B2] ...
180 uint64x2_t x1 = UnpackHigh64(block0, block1);
181 uint64x2_t y1 = UnpackLow64(block0, block1);
182 uint64x2_t x2 = UnpackHigh64(block2, block3);
183 uint64x2_t y2 = UnpackLow64(block2, block3);
184 uint64x2_t x3 = UnpackHigh64(block4, block5);
185 uint64x2_t y3 = UnpackLow64(block4, block5);
186
187 for (int i = 0; i < static_cast<int>(rounds & ~1) - 1; i += 2)
188 {
189 const uint64x2_t rk1 = vld1q_dup_u64(subkeys+i);
190 y1 = veorq_u64(veorq_u64(y1, SIMON128_f(x1)), rk1);
191 y2 = veorq_u64(veorq_u64(y2, SIMON128_f(x2)), rk1);
192 y3 = veorq_u64(veorq_u64(y3, SIMON128_f(x3)), rk1);
193
194 const uint64x2_t rk2 = vld1q_dup_u64(subkeys+i+1);
195 x1 = veorq_u64(veorq_u64(x1, SIMON128_f(y1)), rk2);
196 x2 = veorq_u64(veorq_u64(x2, SIMON128_f(y2)), rk2);
197 x3 = veorq_u64(veorq_u64(x3, SIMON128_f(y3)), rk2);
198 }
199
200 if (rounds & 1)
201 {
202 const uint64x2_t rk = vld1q_dup_u64(subkeys + rounds - 1);
203
204 y1 = veorq_u64(veorq_u64(y1, SIMON128_f(x1)), rk);
205 y2 = veorq_u64(veorq_u64(y2, SIMON128_f(x2)), rk);
206 y3 = veorq_u64(veorq_u64(y3, SIMON128_f(x3)), rk);
207 std::swap(x1, y1); std::swap(x2, y2); std::swap(x3, y3);
208 }
209
210 // [A1 B1][A2 B2] ... => [A1 A2][B1 B2] ...
211 block0 = UnpackLow64(y1, x1);
212 block1 = UnpackHigh64(y1, x1);
213 block2 = UnpackLow64(y2, x2);
214 block3 = UnpackHigh64(y2, x2);
215 block4 = UnpackLow64(y3, x3);
216 block5 = UnpackHigh64(y3, x3);
217 }
218
219 inline void SIMON128_Dec_Block(uint64x2_t &block0, uint64x2_t &block1,
220 const word64 *subkeys, unsigned int rounds)
221 {
222 // [A1 A2][B1 B2] ... => [A1 B1][A2 B2] ...
223 uint64x2_t x1 = UnpackHigh64(block0, block1);
224 uint64x2_t y1 = UnpackLow64(block0, block1);
225
226 if (rounds & 1)
227 {
228 std::swap(x1, y1);
229 const uint64x2_t rk = vld1q_dup_u64(subkeys + rounds - 1);
230
231 y1 = veorq_u64(veorq_u64(y1, rk), SIMON128_f(x1));
232 rounds--;
233 }
234
235 for (int i = static_cast<int>(rounds-2); i >= 0; i -= 2)
236 {
237 const uint64x2_t rk1 = vld1q_dup_u64(subkeys+i+1);
238 x1 = veorq_u64(veorq_u64(x1, SIMON128_f(y1)), rk1);
239
240 const uint64x2_t rk2 = vld1q_dup_u64(subkeys+i);
241 y1 = veorq_u64(veorq_u64(y1, SIMON128_f(x1)), rk2);
242 }
243
244 // [A1 B1][A2 B2] ... => [A1 A2][B1 B2] ...
245 block0 = UnpackLow64(y1, x1);
246 block1 = UnpackHigh64(y1, x1);
247 }
248
249 inline void SIMON128_Dec_6_Blocks(uint64x2_t &block0, uint64x2_t &block1,
250 uint64x2_t &block2, uint64x2_t &block3, uint64x2_t &block4, uint64x2_t &block5,
251 const word64 *subkeys, unsigned int rounds)
252 {
253 // [A1 A2][B1 B2] ... => [A1 B1][A2 B2] ...
254 uint64x2_t x1 = UnpackHigh64(block0, block1);
255 uint64x2_t y1 = UnpackLow64(block0, block1);
256 uint64x2_t x2 = UnpackHigh64(block2, block3);
257 uint64x2_t y2 = UnpackLow64(block2, block3);
258 uint64x2_t x3 = UnpackHigh64(block4, block5);
259 uint64x2_t y3 = UnpackLow64(block4, block5);
260
261 if (rounds & 1)
262 {
263 std::swap(x1, y1); std::swap(x2, y2); std::swap(x3, y3);
264 const uint64x2_t rk = vld1q_dup_u64(subkeys + rounds - 1);
265
266 y1 = veorq_u64(veorq_u64(y1, rk), SIMON128_f(x1));
267 y2 = veorq_u64(veorq_u64(y2, rk), SIMON128_f(x2));
268 y3 = veorq_u64(veorq_u64(y3, rk), SIMON128_f(x3));
269 rounds--;
270 }
271
272 for (int i = static_cast<int>(rounds-2); i >= 0; i -= 2)
273 {
274 const uint64x2_t rk1 = vld1q_dup_u64(subkeys + i + 1);
275 x1 = veorq_u64(veorq_u64(x1, SIMON128_f(y1)), rk1);
276 x2 = veorq_u64(veorq_u64(x2, SIMON128_f(y2)), rk1);
277 x3 = veorq_u64(veorq_u64(x3, SIMON128_f(y3)), rk1);
278
279 const uint64x2_t rk2 = vld1q_dup_u64(subkeys + i);
280 y1 = veorq_u64(veorq_u64(y1, SIMON128_f(x1)), rk2);
281 y2 = veorq_u64(veorq_u64(y2, SIMON128_f(x2)), rk2);
282 y3 = veorq_u64(veorq_u64(y3, SIMON128_f(x3)), rk2);
283 }
284
285 // [A1 B1][A2 B2] ... => [A1 A2][B1 B2] ...
286 block0 = UnpackLow64(y1, x1);
287 block1 = UnpackHigh64(y1, x1);
288 block2 = UnpackLow64(y2, x2);
289 block3 = UnpackHigh64(y2, x2);
290 block4 = UnpackLow64(y3, x3);
291 block5 = UnpackHigh64(y3, x3);
292 }
293
294 #endif // CRYPTOPP_ARM_NEON_AVAILABLE
295
296 // ***************************** IA-32 ***************************** //
297
298 #if defined(CRYPTOPP_SSSE3_AVAILABLE)
299
300 // Clang __m128i casts, http://bugs.llvm.org/show_bug.cgi?id=20670
301 #ifndef M128_CAST
302 # define M128_CAST(x) ((__m128i *)(void *)(x))
303 #endif
304 #ifndef CONST_M128_CAST
305 # define CONST_M128_CAST(x) ((const __m128i *)(const void *)(x))
306 #endif
307
308 // GCC double casts, https://www.spinics.net/lists/gcchelp/msg47735.html
309 #ifndef DOUBLE_CAST
310 # define DOUBLE_CAST(x) ((double *)(void *)(x))
311 #endif
312 #ifndef CONST_DOUBLE_CAST
313 # define CONST_DOUBLE_CAST(x) ((const double *)(const void *)(x))
314 #endif
315
316 inline void Swap128(__m128i& a,__m128i& b)
317 {
318 #if defined(__SUNPRO_CC) && (__SUNPRO_CC <= 0x5120)
319 // __m128i is an unsigned long long[2], and support for swapping it was not added until C++11.
320 // SunCC 12.1 - 12.3 fail to consume the swap; while SunCC 12.4 consumes it without -std=c++11.
321 vec_swap(a, b);
322 #else
323 std::swap(a, b);
324 #endif
325 }
326
327 template <unsigned int R>
328 inline __m128i RotateLeft64(const __m128i& val)
329 {
330 #if defined(CRYPTOPP_AVX512_ROTATE)
331 return _mm_rol_epi64(val, R);
332 #elif defined(__XOP__)
333 return _mm_roti_epi64(val, R);
334 #else
335 return _mm_or_si128(
336 _mm_slli_epi64(val, R), _mm_srli_epi64(val, 64-R));
337 #endif
338 }
339
340 template <unsigned int R>
341 inline __m128i RotateRight64(const __m128i& val)
342 {
343 #if defined(CRYPTOPP_AVX512_ROTATE)
344 return _mm_ror_epi64(val, R);
345 #elif defined(__XOP__)
346 return _mm_roti_epi64(val, 64-R);
347 #else
348 return _mm_or_si128(
349 _mm_slli_epi64(val, 64-R), _mm_srli_epi64(val, R));
350 #endif
351 }
352
353 // Faster than two Shifts and an Or. Thanks to Louis Wingers and Bryan Weeks.
354 template <>
355 __m128i RotateLeft64<8>(const __m128i& val)
356 {
357 #if defined(__XOP__)
358 return _mm_roti_epi64(val, 8);
359 #else
360 const __m128i mask = _mm_set_epi8(14,13,12,11, 10,9,8,15, 6,5,4,3, 2,1,0,7);
361 return _mm_shuffle_epi8(val, mask);
362 #endif
363 }
364
365 // Faster than two Shifts and an Or. Thanks to Louis Wingers and Bryan Weeks.
366 template <>
367 __m128i RotateRight64<8>(const __m128i& val)
368 {
369 #if defined(__XOP__)
370 return _mm_roti_epi64(val, 64-8);
371 #else
372 const __m128i mask = _mm_set_epi8(8,15,14,13, 12,11,10,9, 0,7,6,5, 4,3,2,1);
373 return _mm_shuffle_epi8(val, mask);
374 #endif
375 }
376
377 inline __m128i SIMON128_f(const __m128i& v)
378 {
379 return _mm_xor_si128(RotateLeft64<2>(v),
380 _mm_and_si128(RotateLeft64<1>(v), RotateLeft64<8>(v)));
381 }
382
383 inline void SIMON128_Enc_Block(__m128i &block0, __m128i &block1,
384 const word64 *subkeys, unsigned int rounds)
385 {
386 // [A1 A2][B1 B2] ... => [A1 B1][A2 B2] ...
387 __m128i x1 = _mm_unpackhi_epi64(block0, block1);
388 __m128i y1 = _mm_unpacklo_epi64(block0, block1);
389
390 for (int i = 0; i < static_cast<int>(rounds & ~1)-1; i += 2)
391 {
392 const __m128i rk1 = _mm_castpd_si128(
393 _mm_loaddup_pd(CONST_DOUBLE_CAST(subkeys+i)));
394 y1 = _mm_xor_si128(_mm_xor_si128(y1, SIMON128_f(x1)), rk1);
395
396 const __m128i rk2 = _mm_castpd_si128(
397 _mm_loaddup_pd(CONST_DOUBLE_CAST(subkeys+i+1)));
398 x1 = _mm_xor_si128(_mm_xor_si128(x1, SIMON128_f(y1)), rk2);
399 }
400
401 if (rounds & 1)
402 {
403 const __m128i rk = _mm_castpd_si128(
404 _mm_loaddup_pd(CONST_DOUBLE_CAST(subkeys+rounds-1)));
405
406 y1 = _mm_xor_si128(_mm_xor_si128(y1, SIMON128_f(x1)), rk);
407 Swap128(x1, y1);
408 }
409
410 // [A1 B1][A2 B2] ... => [A1 A2][B1 B2] ...
411 block0 = _mm_unpacklo_epi64(y1, x1);
412 block1 = _mm_unpackhi_epi64(y1, x1);
413 }
414
415 inline void SIMON128_Enc_6_Blocks(__m128i &block0, __m128i &block1,
416 __m128i &block2, __m128i &block3, __m128i &block4, __m128i &block5,
417 const word64 *subkeys, unsigned int rounds)
418 {
419 // [A1 A2][B1 B2] ... => [A1 B1][A2 B2] ...
420 __m128i x1 = _mm_unpackhi_epi64(block0, block1);
421 __m128i y1 = _mm_unpacklo_epi64(block0, block1);
422 __m128i x2 = _mm_unpackhi_epi64(block2, block3);
423 __m128i y2 = _mm_unpacklo_epi64(block2, block3);
424 __m128i x3 = _mm_unpackhi_epi64(block4, block5);
425 __m128i y3 = _mm_unpacklo_epi64(block4, block5);
426
427 for (int i = 0; i < static_cast<int>(rounds & ~1) - 1; i += 2)
428 {
429 const __m128i rk1 = _mm_castpd_si128(
430 _mm_loaddup_pd(CONST_DOUBLE_CAST(subkeys + i)));
431 y1 = _mm_xor_si128(_mm_xor_si128(y1, SIMON128_f(x1)), rk1);
432 y2 = _mm_xor_si128(_mm_xor_si128(y2, SIMON128_f(x2)), rk1);
433 y3 = _mm_xor_si128(_mm_xor_si128(y3, SIMON128_f(x3)), rk1);
434
435 const __m128i rk2 = _mm_castpd_si128(
436 _mm_loaddup_pd(CONST_DOUBLE_CAST(subkeys + i + 1)));
437 x1 = _mm_xor_si128(_mm_xor_si128(x1, SIMON128_f(y1)), rk2);
438 x2 = _mm_xor_si128(_mm_xor_si128(x2, SIMON128_f(y2)), rk2);
439 x3 = _mm_xor_si128(_mm_xor_si128(x3, SIMON128_f(y3)), rk2);
440 }
441
442 if (rounds & 1)
443 {
444 const __m128i rk = _mm_castpd_si128(
445 _mm_loaddup_pd(CONST_DOUBLE_CAST(subkeys + rounds - 1)));
446 y1 = _mm_xor_si128(_mm_xor_si128(y1, SIMON128_f(x1)), rk);
447 y2 = _mm_xor_si128(_mm_xor_si128(y2, SIMON128_f(x2)), rk);
448 y3 = _mm_xor_si128(_mm_xor_si128(y3, SIMON128_f(x3)), rk);
449 Swap128(x1, y1); Swap128(x2, y2); Swap128(x3, y3);
450 }
451
452 // [A1 B1][A2 B2] ... => [A1 A2][B1 B2] ...
453 block0 = _mm_unpacklo_epi64(y1, x1);
454 block1 = _mm_unpackhi_epi64(y1, x1);
455 block2 = _mm_unpacklo_epi64(y2, x2);
456 block3 = _mm_unpackhi_epi64(y2, x2);
457 block4 = _mm_unpacklo_epi64(y3, x3);
458 block5 = _mm_unpackhi_epi64(y3, x3);
459 }
460
461 inline void SIMON128_Dec_Block(__m128i &block0, __m128i &block1,
462 const word64 *subkeys, unsigned int rounds)
463 {
464 // [A1 A2][B1 B2] ... => [A1 B1][A2 B2] ...
465 __m128i x1 = _mm_unpackhi_epi64(block0, block1);
466 __m128i y1 = _mm_unpacklo_epi64(block0, block1);
467
468 if (rounds & 1)
469 {
470 const __m128i rk = _mm_castpd_si128(
471 _mm_loaddup_pd(CONST_DOUBLE_CAST(subkeys + rounds - 1)));
472
473 Swap128(x1, y1);
474 y1 = _mm_xor_si128(_mm_xor_si128(y1, rk), SIMON128_f(x1));
475 rounds--;
476 }
477
478 for (int i = static_cast<int>(rounds-2); i >= 0; i -= 2)
479 {
480 const __m128i rk1 = _mm_castpd_si128(
481 _mm_loaddup_pd(CONST_DOUBLE_CAST(subkeys+i+1)));
482 x1 = _mm_xor_si128(_mm_xor_si128(x1, SIMON128_f(y1)), rk1);
483
484 const __m128i rk2 = _mm_castpd_si128(
485 _mm_loaddup_pd(CONST_DOUBLE_CAST(subkeys+i)));
486 y1 = _mm_xor_si128(_mm_xor_si128(y1, SIMON128_f(x1)), rk2);
487 }
488
489 // [A1 B1][A2 B2] ... => [A1 A2][B1 B2] ...
490 block0 = _mm_unpacklo_epi64(y1, x1);
491 block1 = _mm_unpackhi_epi64(y1, x1);
492 }
493
494 inline void SIMON128_Dec_6_Blocks(__m128i &block0, __m128i &block1,
495 __m128i &block2, __m128i &block3, __m128i &block4, __m128i &block5,
496 const word64 *subkeys, unsigned int rounds)
497 {
498 // [A1 A2][B1 B2] ... => [A1 B1][A2 B2] ...
499 __m128i x1 = _mm_unpackhi_epi64(block0, block1);
500 __m128i y1 = _mm_unpacklo_epi64(block0, block1);
501 __m128i x2 = _mm_unpackhi_epi64(block2, block3);
502 __m128i y2 = _mm_unpacklo_epi64(block2, block3);
503 __m128i x3 = _mm_unpackhi_epi64(block4, block5);
504 __m128i y3 = _mm_unpacklo_epi64(block4, block5);
505
506 if (rounds & 1)
507 {
508 const __m128i rk = _mm_castpd_si128(
509 _mm_loaddup_pd(CONST_DOUBLE_CAST(subkeys + rounds - 1)));
510
511 Swap128(x1, y1); Swap128(x2, y2); Swap128(x3, y3);
512 y1 = _mm_xor_si128(_mm_xor_si128(y1, rk), SIMON128_f(x1));
513 y2 = _mm_xor_si128(_mm_xor_si128(y2, rk), SIMON128_f(x2));
514 y3 = _mm_xor_si128(_mm_xor_si128(y3, rk), SIMON128_f(x3));
515 rounds--;
516 }
517
518 for (int i = static_cast<int>(rounds-2); i >= 0; i -= 2)
519 {
520 const __m128i rk1 = _mm_castpd_si128(
521 _mm_loaddup_pd(CONST_DOUBLE_CAST(subkeys + i + 1)));
522 x1 = _mm_xor_si128(_mm_xor_si128(x1, SIMON128_f(y1)), rk1);
523 x2 = _mm_xor_si128(_mm_xor_si128(x2, SIMON128_f(y2)), rk1);
524 x3 = _mm_xor_si128(_mm_xor_si128(x3, SIMON128_f(y3)), rk1);
525
526 const __m128i rk2 = _mm_castpd_si128(
527 _mm_loaddup_pd(CONST_DOUBLE_CAST(subkeys + i)));
528 y1 = _mm_xor_si128(_mm_xor_si128(y1, SIMON128_f(x1)), rk2);
529 y2 = _mm_xor_si128(_mm_xor_si128(y2, SIMON128_f(x2)), rk2);
530 y3 = _mm_xor_si128(_mm_xor_si128(y3, SIMON128_f(x3)), rk2);
531 }
532
533 // [A1 B1][A2 B2] ... => [A1 A2][B1 B2] ...
534 block0 = _mm_unpacklo_epi64(y1, x1);
535 block1 = _mm_unpackhi_epi64(y1, x1);
536 block2 = _mm_unpacklo_epi64(y2, x2);
537 block3 = _mm_unpackhi_epi64(y2, x2);
538 block4 = _mm_unpacklo_epi64(y3, x3);
539 block5 = _mm_unpackhi_epi64(y3, x3);
540 }
541
542 #endif // CRYPTOPP_SSSE3_AVAILABLE
543
544 // ***************************** Power8 ***************************** //
545
546 #if defined(CRYPTOPP_POWER8_AVAILABLE)
547
548 using CryptoPP::uint8x16_p;
549 using CryptoPP::uint32x4_p;
550 using CryptoPP::uint64x2_p;
551
552 using CryptoPP::VecAnd;
553 using CryptoPP::VecXor;
554 using CryptoPP::VecPermute;
555
556 // Rotate left by bit count
557 template<unsigned int C>
558 inline uint64x2_p RotateLeft64(const uint64x2_p val)
559 {
560 const uint64x2_p m = {C, C};
561 return vec_rl(val, m);
562 }
563
564 // Rotate right by bit count
565 template<unsigned int C>
566 inline uint64x2_p RotateRight64(const uint64x2_p val)
567 {
568 const uint64x2_p m = {64-C, 64-C};
569 return vec_rl(val, m);
570 }
571
572 inline uint64x2_p SIMON128_f(const uint64x2_p val)
573 {
574 return VecXor(RotateLeft64<2>(val),
575 VecAnd(RotateLeft64<1>(val), RotateLeft64<8>(val)));
576 }
577
578 inline void SIMON128_Enc_Block(uint32x4_p &block, const word64 *subkeys, unsigned int rounds)
579 {
580 #if (CRYPTOPP_BIG_ENDIAN)
581 const uint8x16_p m1 = {31,30,29,28,27,26,25,24, 15,14,13,12,11,10,9,8};
582 const uint8x16_p m2 = {23,22,21,20,19,18,17,16, 7,6,5,4,3,2,1,0};
583 #else
584 const uint8x16_p m1 = {7,6,5,4,3,2,1,0, 23,22,21,20,19,18,17,16};
585 const uint8x16_p m2 = {15,14,13,12,11,10,9,8, 31,30,29,28,27,26,25,24};
586 #endif
587
588 // [A1 A2][B1 B2] ... => [A1 B1][A2 B2] ...
589 uint64x2_p x1 = (uint64x2_p)VecPermute(block, block, m1);
590 uint64x2_p y1 = (uint64x2_p)VecPermute(block, block, m2);
591
592 for (int i = 0; i < static_cast<int>(rounds & ~1)-1; i += 2)
593 {
594 const uint64x2_p rk1 = vec_splats((unsigned long long)subkeys[i]);
595 y1 = VecXor(VecXor(y1, SIMON128_f(x1)), rk1);
596
597 const uint64x2_p rk2 = vec_splats((unsigned long long)subkeys[i+1]);
598 x1 = VecXor(VecXor(x1, SIMON128_f(y1)), rk2);
599 }
600
601 if (rounds & 1)
602 {
603 const uint64x2_p rk = vec_splats((unsigned long long)subkeys[rounds-1]);
604 y1 = VecXor(VecXor(y1, SIMON128_f(x1)), rk);
605 std::swap(x1, y1);
606 }
607
608 #if (CRYPTOPP_BIG_ENDIAN)
609 const uint8x16_p m3 = {31,30,29,28,27,26,25,24, 15,14,13,12,11,10,9,8};
610 //const uint8x16_p m4 = {23,22,21,20,19,18,17,16, 7,6,5,4,3,2,1,0};
611 #else
612 const uint8x16_p m3 = {7,6,5,4,3,2,1,0, 23,22,21,20,19,18,17,16};
613 //const uint8x16_p m4 = {15,14,13,12,11,10,9,8, 31,30,29,28,27,26,25,24};
614 #endif
615
616 // [A1 B1][A2 B2] ... => [A1 A2][B1 B2] ...
617 block = (uint32x4_p)VecPermute(x1, y1, m3);
618 }
619
620 inline void SIMON128_Dec_Block(uint32x4_p &block, const word64 *subkeys, unsigned int rounds)
621 {
622 #if (CRYPTOPP_BIG_ENDIAN)
623 const uint8x16_p m1 = {31,30,29,28,27,26,25,24, 15,14,13,12,11,10,9,8};
624 const uint8x16_p m2 = {23,22,21,20,19,18,17,16, 7,6,5,4,3,2,1,0};
625 #else
626 const uint8x16_p m1 = {7,6,5,4,3,2,1,0, 23,22,21,20,19,18,17,16};
627 const uint8x16_p m2 = {15,14,13,12,11,10,9,8, 31,30,29,28,27,26,25,24};
628 #endif
629
630 // [A1 A2][B1 B2] ... => [A1 B1][A2 B2] ...
631 uint64x2_p x1 = (uint64x2_p)VecPermute(block, block, m1);
632 uint64x2_p y1 = (uint64x2_p)VecPermute(block, block, m2);
633
634 if (rounds & 1)
635 {
636 std::swap(x1, y1);
637 const uint64x2_p rk = vec_splats((unsigned long long)subkeys[rounds-1]);
638 y1 = VecXor(VecXor(y1, rk), SIMON128_f(x1));
639 rounds--;
640 }
641
642 for (int i = static_cast<int>(rounds-2); i >= 0; i -= 2)
643 {
644 const uint64x2_p rk1 = vec_splats((unsigned long long)subkeys[i+1]);
645 x1 = VecXor(VecXor(x1, SIMON128_f(y1)), rk1);
646
647 const uint64x2_p rk2 = vec_splats((unsigned long long)subkeys[i]);
648 y1 = VecXor(VecXor(y1, SIMON128_f(x1)), rk2);
649 }
650
651 #if (CRYPTOPP_BIG_ENDIAN)
652 const uint8x16_p m3 = {31,30,29,28,27,26,25,24, 15,14,13,12,11,10,9,8};
653 //const uint8x16_p m4 = {23,22,21,20,19,18,17,16, 7,6,5,4,3,2,1,0};
654 #else
655 const uint8x16_p m3 = {7,6,5,4,3,2,1,0, 23,22,21,20,19,18,17,16};
656 //const uint8x16_p m4 = {15,14,13,12,11,10,9,8, 31,30,29,28,27,26,25,24};
657 #endif
658
659 // [A1 B1][A2 B2] ... => [A1 A2][B1 B2] ...
660 block = (uint32x4_p)VecPermute(x1, y1, m3);
661 }
662
663 inline void SIMON128_Enc_6_Blocks(uint32x4_p &block0, uint32x4_p &block1,
664 uint32x4_p &block2, uint32x4_p &block3, uint32x4_p &block4,
665 uint32x4_p &block5, const word64 *subkeys, unsigned int rounds)
666 {
667 #if (CRYPTOPP_BIG_ENDIAN)
668 const uint8x16_p m1 = {31,30,29,28,27,26,25,24, 15,14,13,12,11,10,9,8};
669 const uint8x16_p m2 = {23,22,21,20,19,18,17,16, 7,6,5,4,3,2,1,0};
670 #else
671 const uint8x16_p m1 = {7,6,5,4,3,2,1,0, 23,22,21,20,19,18,17,16};
672 const uint8x16_p m2 = {15,14,13,12,11,10,9,8, 31,30,29,28,27,26,25,24};
673 #endif
674
675 // [A1 A2][B1 B2] ... => [A1 B1][A2 B2] ...
676 uint64x2_p x1 = (uint64x2_p)VecPermute(block0, block1, m1);
677 uint64x2_p y1 = (uint64x2_p)VecPermute(block0, block1, m2);
678 uint64x2_p x2 = (uint64x2_p)VecPermute(block2, block3, m1);
679 uint64x2_p y2 = (uint64x2_p)VecPermute(block2, block3, m2);
680 uint64x2_p x3 = (uint64x2_p)VecPermute(block4, block5, m1);
681 uint64x2_p y3 = (uint64x2_p)VecPermute(block4, block5, m2);
682
683 for (int i = 0; i < static_cast<int>(rounds & ~1)-1; i += 2)
684 {
685 const uint64x2_p rk1 = vec_splats((unsigned long long)subkeys[i]);
686 y1 = VecXor(VecXor(y1, SIMON128_f(x1)), rk1);
687 y2 = VecXor(VecXor(y2, SIMON128_f(x2)), rk1);
688 y3 = VecXor(VecXor(y3, SIMON128_f(x3)), rk1);
689
690 const uint64x2_p rk2 = vec_splats((unsigned long long)subkeys[i+1]);
691 x1 = VecXor(VecXor(x1, SIMON128_f(y1)), rk2);
692 x2 = VecXor(VecXor(x2, SIMON128_f(y2)), rk2);
693 x3 = VecXor(VecXor(x3, SIMON128_f(y3)), rk2);
694 }
695
696 if (rounds & 1)
697 {
698 const uint64x2_p rk = vec_splats((unsigned long long)subkeys[rounds-1]);
699 y1 = VecXor(VecXor(y1, SIMON128_f(x1)), rk);
700 y2 = VecXor(VecXor(y2, SIMON128_f(x2)), rk);
701 y3 = VecXor(VecXor(y3, SIMON128_f(x3)), rk);
702 std::swap(x1, y1); std::swap(x2, y2); std::swap(x3, y3);
703 }
704
705 #if (CRYPTOPP_BIG_ENDIAN)
706 const uint8x16_p m3 = {31,30,29,28,27,26,25,24, 15,14,13,12,11,10,9,8};
707 const uint8x16_p m4 = {23,22,21,20,19,18,17,16, 7,6,5,4,3,2,1,0};
708 #else
709 const uint8x16_p m3 = {7,6,5,4,3,2,1,0, 23,22,21,20,19,18,17,16};
710 const uint8x16_p m4 = {15,14,13,12,11,10,9,8, 31,30,29,28,27,26,25,24};
711 #endif
712
713 // [A1 B1][A2 B2] ... => [A1 A2][B1 B2] ...
714 block0 = (uint32x4_p)VecPermute(x1, y1, m3);
715 block1 = (uint32x4_p)VecPermute(x1, y1, m4);
716 block2 = (uint32x4_p)VecPermute(x2, y2, m3);
717 block3 = (uint32x4_p)VecPermute(x2, y2, m4);
718 block4 = (uint32x4_p)VecPermute(x3, y3, m3);
719 block5 = (uint32x4_p)VecPermute(x3, y3, m4);
720 }
721
722 inline void SIMON128_Dec_6_Blocks(uint32x4_p &block0, uint32x4_p &block1,
723 uint32x4_p &block2, uint32x4_p &block3, uint32x4_p &block4,
724 uint32x4_p &block5, const word64 *subkeys, unsigned int rounds)
725 {
726 #if (CRYPTOPP_BIG_ENDIAN)
727 const uint8x16_p m1 = {31,30,29,28,27,26,25,24, 15,14,13,12,11,10,9,8};
728 const uint8x16_p m2 = {23,22,21,20,19,18,17,16, 7,6,5,4,3,2,1,0};
729 #else
730 const uint8x16_p m1 = {7,6,5,4,3,2,1,0, 23,22,21,20,19,18,17,16};
731 const uint8x16_p m2 = {15,14,13,12,11,10,9,8, 31,30,29,28,27,26,25,24};
732 #endif
733
734 // [A1 A2][B1 B2] ... => [A1 B1][A2 B2] ...
735 uint64x2_p x1 = (uint64x2_p)VecPermute(block0, block1, m1);
736 uint64x2_p y1 = (uint64x2_p)VecPermute(block0, block1, m2);
737 uint64x2_p x2 = (uint64x2_p)VecPermute(block2, block3, m1);
738 uint64x2_p y2 = (uint64x2_p)VecPermute(block2, block3, m2);
739 uint64x2_p x3 = (uint64x2_p)VecPermute(block4, block5, m1);
740 uint64x2_p y3 = (uint64x2_p)VecPermute(block4, block5, m2);
741
742 if (rounds & 1)
743 {
744 std::swap(x1, y1); std::swap(x2, y2); std::swap(x3, y3);
745 const uint64x2_p rk = vec_splats((unsigned long long)subkeys[rounds-1]);
746 y1 = VecXor(VecXor(y1, rk), SIMON128_f(x1));
747 y2 = VecXor(VecXor(y2, rk), SIMON128_f(x2));
748 y3 = VecXor(VecXor(y3, rk), SIMON128_f(x3));
749 rounds--;
750 }
751
752 for (int i = static_cast<int>(rounds-2); i >= 0; i -= 2)
753 {
754 const uint64x2_p rk1 = vec_splats((unsigned long long)subkeys[i+1]);
755 x1 = VecXor(VecXor(x1, SIMON128_f(y1)), rk1);
756 x2 = VecXor(VecXor(x2, SIMON128_f(y2)), rk1);
757 x3 = VecXor(VecXor(x3, SIMON128_f(y3)), rk1);
758
759 const uint64x2_p rk2 = vec_splats((unsigned long long)subkeys[i]);
760 y1 = VecXor(VecXor(y1, SIMON128_f(x1)), rk2);
761 y2 = VecXor(VecXor(y2, SIMON128_f(x2)), rk2);
762 y3 = VecXor(VecXor(y3, SIMON128_f(x3)), rk2);
763 }
764
765 #if (CRYPTOPP_BIG_ENDIAN)
766 const uint8x16_p m3 = {31,30,29,28,27,26,25,24, 15,14,13,12,11,10,9,8};
767 const uint8x16_p m4 = {23,22,21,20,19,18,17,16, 7,6,5,4,3,2,1,0};
768 #else
769 const uint8x16_p m3 = {7,6,5,4,3,2,1,0, 23,22,21,20,19,18,17,16};
770 const uint8x16_p m4 = {15,14,13,12,11,10,9,8, 31,30,29,28,27,26,25,24};
771 #endif
772
773 // [A1 B1][A2 B2] ... => [A1 A2][B1 B2] ...
774 block0 = (uint32x4_p)VecPermute(x1, y1, m3);
775 block1 = (uint32x4_p)VecPermute(x1, y1, m4);
776 block2 = (uint32x4_p)VecPermute(x2, y2, m3);
777 block3 = (uint32x4_p)VecPermute(x2, y2, m4);
778 block4 = (uint32x4_p)VecPermute(x3, y3, m3);
779 block5 = (uint32x4_p)VecPermute(x3, y3, m4);
780 }
781
782 #endif // CRYPTOPP_POWER8_AVAILABLE
783
784 ANONYMOUS_NAMESPACE_END
785
786 ///////////////////////////////////////////////////////////////////////
787
788 NAMESPACE_BEGIN(CryptoPP)
789
790 // *************************** ARM NEON **************************** //
791
792 #if (CRYPTOPP_ARM_NEON_AVAILABLE)
793 size_t SIMON128_Enc_AdvancedProcessBlocks_NEON(const word64* subKeys, size_t rounds,
794 const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
795 {
796 return AdvancedProcessBlocks128_6x2_NEON(SIMON128_Enc_Block, SIMON128_Enc_6_Blocks,
797 subKeys, rounds, inBlocks, xorBlocks, outBlocks, length, flags);
798 }
799
800 size_t SIMON128_Dec_AdvancedProcessBlocks_NEON(const word64* subKeys, size_t rounds,
801 const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
802 {
803 return AdvancedProcessBlocks128_6x2_NEON(SIMON128_Dec_Block, SIMON128_Dec_6_Blocks,
804 subKeys, rounds, inBlocks, xorBlocks, outBlocks, length, flags);
805 }
806 #endif // CRYPTOPP_ARM_NEON_AVAILABLE
807
808 // ***************************** IA-32 ***************************** //
809
810 #if defined(CRYPTOPP_SSSE3_AVAILABLE)
811 size_t SIMON128_Enc_AdvancedProcessBlocks_SSSE3(const word64* subKeys, size_t rounds,
812 const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
813 {
814 return AdvancedProcessBlocks128_6x2_SSE(SIMON128_Enc_Block, SIMON128_Enc_6_Blocks,
815 subKeys, rounds, inBlocks, xorBlocks, outBlocks, length, flags);
816 }
817
818 size_t SIMON128_Dec_AdvancedProcessBlocks_SSSE3(const word64* subKeys, size_t rounds,
819 const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
820 {
821 return AdvancedProcessBlocks128_6x2_SSE(SIMON128_Dec_Block, SIMON128_Dec_6_Blocks,
822 subKeys, rounds, inBlocks, xorBlocks, outBlocks, length, flags);
823 }
824 #endif // CRYPTOPP_SSSE3_AVAILABLE
825
826 // ***************************** Power8 ***************************** //
827
828 #if defined(CRYPTOPP_POWER8_AVAILABLE)
829 size_t SIMON128_Enc_AdvancedProcessBlocks_POWER8(const word64* subKeys, size_t rounds,
830 const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
831 {
832 return AdvancedProcessBlocks128_6x1_ALTIVEC(SIMON128_Enc_Block, SIMON128_Enc_6_Blocks,
833 subKeys, rounds, inBlocks, xorBlocks, outBlocks, length, flags);
834 }
835
836 size_t SIMON128_Dec_AdvancedProcessBlocks_POWER8(const word64* subKeys, size_t rounds,
837 const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags)
838 {
839 return AdvancedProcessBlocks128_6x1_ALTIVEC(SIMON128_Dec_Block, SIMON128_Dec_6_Blocks,
840 subKeys, rounds, inBlocks, xorBlocks, outBlocks, length, flags);
841 }
842 #endif // CRYPTOPP_POWER8_AVAILABLE
843
844 NAMESPACE_END
misc.h
Utility functions for the Crypto++ library.
config.h
Library configuration file.
VecPermute
T1 VecPermute(const T1 vec, const T2 mask)
Permutes a vector.
Definition: ppc_simd.h:1010
uint32x4_p
__vector unsigned int uint32x4_p
Vector of 32-bit elements.
Definition: ppc_simd.h:129
ppc_simd.h
Support functions for PowerPC and vector operations.
adv_simd.h
Template for AdvancedProcessBlocks and SIMD processing.
pch.h
Precompiled header file.
VecXor
T1 VecXor(const T1 vec1, const T2 vec2)
XOR two vectors.
Definition: ppc_simd.h:916
uint64x2_p
__vector unsigned long long uint64x2_p
Vector of 64-bit elements.
Definition: ppc_simd.h:139
simon.h
Classes for the Simon block cipher.
CryptoPP
Crypto++ library namespace.
uint8x16_p
__vector unsigned char uint8x16_p
Vector of 8-bit elements.
Definition: ppc_simd.h:119
VecAnd
T1 VecAnd(const T1 vec1, const T2 vec2)
AND two vectors.
Definition: ppc_simd.h:882
vec_swap
void vec_swap(T &a, T &b)
Swaps two variables which are arrays.
Definition: misc.h:499