18 #if defined(CRYPTOPP_AVX2_AVAILABLE) && defined(CRYPTOPP_ENABLE_64BIT_SSE)
20 #if defined(CRYPTOPP_AVX2_AVAILABLE)
21 # include <emmintrin.h>
22 # include <immintrin.h>
26 #if (CRYPTOPP_GCC_VERSION >= 40500)
27 # include <x86intrin.h>
30 ANONYMOUS_NAMESPACE_BEGIN
34 const unsigned int LSH512_MSG_BLK_BYTE_LEN = 256;
37 const unsigned int LSH512_HASH_VAL_MAX_BYTE_LEN = 64;
40 const unsigned int CV_WORD_LEN = 16;
41 const unsigned int CONST_WORD_LEN = 8;
43 const unsigned int NUM_STEPS = 28;
45 const unsigned int ROT_EVEN_ALPHA = 23;
46 const unsigned int ROT_EVEN_BETA = 59;
47 const unsigned int ROT_ODD_ALPHA = 7;
48 const unsigned int ROT_ODD_BETA = 3;
50 const unsigned int LSH_TYPE_512_512 = 0x0010040;
51 const unsigned int LSH_TYPE_512_384 = 0x0010030;
52 const unsigned int LSH_TYPE_512_256 = 0x0010020;
53 const unsigned int LSH_TYPE_512_224 = 0x001001C;
60 const unsigned int LSH_SUCCESS = 0x0;
63 const unsigned int LSH_ERR_INVALID_DATABITLEN = 0x2403;
64 const unsigned int LSH_ERR_INVALID_STATE = 0x2404;
68 const unsigned int AlgorithmType = 80;
69 const unsigned int RemainingBits = 81;
77 extern const word64 LSH512_IV224[CV_WORD_LEN];
78 extern const word64 LSH512_IV256[CV_WORD_LEN];
79 extern const word64 LSH512_IV384[CV_WORD_LEN];
80 extern const word64 LSH512_IV512[CV_WORD_LEN];
81 extern const word64 LSH512_StepConstants[CONST_WORD_LEN * NUM_STEPS];
86 ANONYMOUS_NAMESPACE_BEGIN
94 using CryptoPP::GetBlock;
99 using CryptoPP::LSH::LSH512_IV224;
100 using CryptoPP::LSH::LSH512_IV256;
101 using CryptoPP::LSH::LSH512_IV384;
102 using CryptoPP::LSH::LSH512_IV512;
103 using CryptoPP::LSH::LSH512_StepConstants;
112 struct LSH512_AVX2_Context
115 cv_l(state+0), cv_r(state+8), sub_msgs(state+16),
116 last_block(reinterpret_cast<
byte*>(state+48)),
117 remain_databitlen(remainingBitLength),
118 alg_type(static_cast<lsh_type>(algType)) {}
124 lsh_u64& remain_databitlen;
128 struct LSH512_AVX2_Internal
130 LSH512_AVX2_Internal(
word64* state) :
131 submsg_e_l(state+16), submsg_e_r(state+24),
132 submsg_o_l(state+32), submsg_o_r(state+40) { }
156 inline bool LSH_IS_LSH512(lsh_uint val) {
157 return (val & 0xf0000) == 0x10000;
160 inline lsh_uint LSH_GET_SMALL_HASHBIT(lsh_uint val) {
164 inline lsh_uint LSH_GET_HASHBYTE(lsh_uint val) {
168 inline lsh_uint LSH_GET_HASHBIT(lsh_uint val) {
169 return (LSH_GET_HASHBYTE(val) << 3) - LSH_GET_SMALL_HASHBIT(val);
172 inline lsh_u64 loadLE64(lsh_u64 v) {
176 lsh_u64 ROTL64(lsh_u64 x, lsh_u32 r) {
181 inline void load_msg_blk(LSH512_AVX2_Internal* i_state,
const lsh_u8 msgblk[LSH512_MSG_BLK_BYTE_LEN])
183 lsh_u64* submsg_e_l = i_state->submsg_e_l;
184 lsh_u64* submsg_e_r = i_state->submsg_e_r;
185 lsh_u64* submsg_o_l = i_state->submsg_o_l;
186 lsh_u64* submsg_o_r = i_state->submsg_o_r;
188 _mm256_storeu_si256(M256_CAST(submsg_e_l+0),
189 _mm256_loadu_si256(CONST_M256_CAST(msgblk+0)));
190 _mm256_storeu_si256(M256_CAST(submsg_e_l+4),
191 _mm256_loadu_si256(CONST_M256_CAST(msgblk+32)));
193 _mm256_storeu_si256(M256_CAST(submsg_e_r+0),
194 _mm256_loadu_si256(CONST_M256_CAST(msgblk+64)));
195 _mm256_storeu_si256(M256_CAST(submsg_e_r+4),
196 _mm256_loadu_si256(CONST_M256_CAST(msgblk+96)));
198 _mm256_storeu_si256(M256_CAST(submsg_o_l+0),
199 _mm256_loadu_si256(CONST_M256_CAST(msgblk+128)));
200 _mm256_storeu_si256(M256_CAST(submsg_o_l+4),
201 _mm256_loadu_si256(CONST_M256_CAST(msgblk+160)));
203 _mm256_storeu_si256(M256_CAST(submsg_o_r+0),
204 _mm256_loadu_si256(CONST_M256_CAST(msgblk+192)));
205 _mm256_storeu_si256(M256_CAST(submsg_o_r+4),
206 _mm256_loadu_si256(CONST_M256_CAST(msgblk+224)));
209 inline void msg_exp_even(LSH512_AVX2_Internal* i_state)
213 lsh_u64* submsg_e_l = i_state->submsg_e_l;
214 lsh_u64* submsg_e_r = i_state->submsg_e_r;
215 lsh_u64* submsg_o_l = i_state->submsg_o_l;
216 lsh_u64* submsg_o_r = i_state->submsg_o_r;
218 _mm256_storeu_si256(M256_CAST(submsg_e_l+0), _mm256_add_epi64(
219 _mm256_loadu_si256(CONST_M256_CAST(submsg_o_l+0)),
220 _mm256_permute4x64_epi64(
221 _mm256_loadu_si256(CONST_M256_CAST(submsg_e_l+0)),
222 _MM_SHUFFLE(1,0,2,3))));
223 _mm256_storeu_si256(M256_CAST(submsg_e_l+4), _mm256_add_epi64(
224 _mm256_loadu_si256(CONST_M256_CAST(submsg_o_l+4)),
225 _mm256_permute4x64_epi64(
226 _mm256_loadu_si256(CONST_M256_CAST(submsg_e_l+4)),
227 _MM_SHUFFLE(2,1,0,3))));
229 _mm256_storeu_si256(M256_CAST(submsg_e_r+0), _mm256_add_epi64(
230 _mm256_loadu_si256(CONST_M256_CAST(submsg_o_r+0)),
231 _mm256_permute4x64_epi64(
232 _mm256_loadu_si256(CONST_M256_CAST(submsg_e_r+0)),
233 _MM_SHUFFLE(1,0,2,3))));
234 _mm256_storeu_si256(M256_CAST(submsg_e_r+4), _mm256_add_epi64(
235 _mm256_loadu_si256(CONST_M256_CAST(submsg_o_r+4)),
236 _mm256_permute4x64_epi64(
237 _mm256_loadu_si256(CONST_M256_CAST(submsg_e_r+4)),
238 _MM_SHUFFLE(2,1,0,3))));
241 inline void msg_exp_odd(LSH512_AVX2_Internal* i_state)
245 lsh_u64* submsg_e_l = i_state->submsg_e_l;
246 lsh_u64* submsg_e_r = i_state->submsg_e_r;
247 lsh_u64* submsg_o_l = i_state->submsg_o_l;
248 lsh_u64* submsg_o_r = i_state->submsg_o_r;
250 _mm256_storeu_si256(M256_CAST(submsg_o_l+0),
252 _mm256_loadu_si256(CONST_M256_CAST(submsg_e_l+0)),
253 _mm256_permute4x64_epi64(
254 _mm256_loadu_si256(CONST_M256_CAST(submsg_o_l+0)),
255 _MM_SHUFFLE(1,0,2,3))));
256 _mm256_storeu_si256(M256_CAST(submsg_o_l+4),
258 _mm256_loadu_si256(CONST_M256_CAST(submsg_e_l+4)),
259 _mm256_permute4x64_epi64(
260 _mm256_loadu_si256(CONST_M256_CAST(submsg_o_l+4)),
261 _MM_SHUFFLE(2,1,0,3))));
263 _mm256_storeu_si256(M256_CAST(submsg_o_r+0),
265 _mm256_loadu_si256(CONST_M256_CAST(submsg_e_r+0)),
266 _mm256_permute4x64_epi64(
267 _mm256_loadu_si256(CONST_M256_CAST(submsg_o_r+0)),
268 _MM_SHUFFLE(1,0,2,3))));
269 _mm256_storeu_si256(M256_CAST(submsg_o_r+4),
271 _mm256_loadu_si256(CONST_M256_CAST(submsg_e_r+4)),
272 _mm256_permute4x64_epi64(
273 _mm256_loadu_si256(CONST_M256_CAST(submsg_o_r+4)),
274 _MM_SHUFFLE(2,1,0,3))));
277 inline void load_sc(
const lsh_u64** p_const_v,
size_t i)
279 *p_const_v = &LSH512_StepConstants[i];
282 inline void msg_add_even(lsh_u64 cv_l[8], lsh_u64 cv_r[8], LSH512_AVX2_Internal* i_state)
286 lsh_u64* submsg_e_l = i_state->submsg_e_l;
287 lsh_u64* submsg_e_r = i_state->submsg_e_r;
289 _mm256_storeu_si256(M256_CAST(cv_l), _mm256_xor_si256(
290 _mm256_loadu_si256(CONST_M256_CAST(cv_l)),
291 _mm256_loadu_si256(CONST_M256_CAST(submsg_e_l))));
292 _mm256_storeu_si256(M256_CAST(cv_r), _mm256_xor_si256(
293 _mm256_loadu_si256(CONST_M256_CAST(cv_r)),
294 _mm256_loadu_si256(CONST_M256_CAST(submsg_e_r))));
296 _mm256_storeu_si256(M256_CAST(cv_l+4), _mm256_xor_si256(
297 _mm256_loadu_si256(CONST_M256_CAST(cv_l+4)),
298 _mm256_loadu_si256(CONST_M256_CAST(submsg_e_l+4))));
299 _mm256_storeu_si256(M256_CAST(cv_r+4), _mm256_xor_si256(
300 _mm256_loadu_si256(CONST_M256_CAST(cv_r+4)),
301 _mm256_loadu_si256(CONST_M256_CAST(submsg_e_r+4))));
304 inline void msg_add_odd(lsh_u64 cv_l[8], lsh_u64 cv_r[8], LSH512_AVX2_Internal* i_state)
308 lsh_u64* submsg_o_l = i_state->submsg_o_l;
309 lsh_u64* submsg_o_r = i_state->submsg_o_r;
311 _mm256_storeu_si256(M256_CAST(cv_l), _mm256_xor_si256(
312 _mm256_loadu_si256(CONST_M256_CAST(cv_l)),
313 _mm256_loadu_si256(CONST_M256_CAST(submsg_o_l))));
314 _mm256_storeu_si256(M256_CAST(cv_r), _mm256_xor_si256(
315 _mm256_loadu_si256(CONST_M256_CAST(cv_r)),
316 _mm256_loadu_si256(CONST_M256_CAST(submsg_o_r))));
318 _mm256_storeu_si256(M256_CAST(cv_l+4), _mm256_xor_si256(
319 _mm256_loadu_si256(CONST_M256_CAST(cv_l+4)),
320 _mm256_loadu_si256(CONST_M256_CAST(submsg_o_l+4))));
321 _mm256_storeu_si256(M256_CAST(cv_r+4), _mm256_xor_si256(
322 _mm256_loadu_si256(CONST_M256_CAST(cv_r+4)),
323 _mm256_loadu_si256(CONST_M256_CAST(submsg_o_r+4))));
326 inline void add_blk(lsh_u64 cv_l[8], lsh_u64 cv_r[8])
328 _mm256_storeu_si256(M256_CAST(cv_l), _mm256_add_epi64(
329 _mm256_loadu_si256(CONST_M256_CAST(cv_l)),
330 _mm256_loadu_si256(CONST_M256_CAST(cv_r))));
331 _mm256_storeu_si256(M256_CAST(cv_l+4), _mm256_add_epi64(
332 _mm256_loadu_si256(CONST_M256_CAST(cv_l+4)),
333 _mm256_loadu_si256(CONST_M256_CAST(cv_r+4))));
336 template <
unsigned int R>
337 inline void rotate_blk(lsh_u64 cv[8])
339 _mm256_storeu_si256(M256_CAST(cv), _mm256_or_si256(
340 _mm256_slli_epi64(_mm256_loadu_si256(CONST_M256_CAST(cv)), R),
341 _mm256_srli_epi64(_mm256_loadu_si256(CONST_M256_CAST(cv)), 64-R)));
342 _mm256_storeu_si256(M256_CAST(cv+4), _mm256_or_si256(
343 _mm256_slli_epi64(_mm256_loadu_si256(CONST_M256_CAST(cv+4)), R),
344 _mm256_srli_epi64(_mm256_loadu_si256(CONST_M256_CAST(cv+4)), 64-R)));
347 inline void xor_with_const(lsh_u64 cv_l[8],
const lsh_u64 const_v[8])
349 _mm256_storeu_si256(M256_CAST(cv_l), _mm256_xor_si256(
350 _mm256_loadu_si256(CONST_M256_CAST(cv_l)),
351 _mm256_loadu_si256(CONST_M256_CAST(const_v))));
352 _mm256_storeu_si256(M256_CAST(cv_l+4), _mm256_xor_si256(
353 _mm256_loadu_si256(CONST_M256_CAST(cv_l+4)),
354 _mm256_loadu_si256(CONST_M256_CAST(const_v+4))));
357 inline void rotate_msg_gamma(lsh_u64 cv_r[8])
360 _mm256_storeu_si256(M256_CAST(cv_r+0),
362 _mm256_loadu_si256(CONST_M256_CAST(cv_r+0)),
364 9,8,15,14, 13,12,11,10, 3,2,1,0, 7,6,5,4,
365 13,12,11,10, 9,8,15,14, 7,6,5,4, 3,2,1,0)));
366 _mm256_storeu_si256(M256_CAST(cv_r+4),
368 _mm256_loadu_si256(CONST_M256_CAST(cv_r+4)),
370 8,15,14,13, 12,11,10,9, 2,1,0,7, 6,5,4,3,
371 12,11,10,9, 8,15,14,13, 6,5,4,3, 2,1,0,7)));
374 inline void word_perm(lsh_u64 cv_l[8], lsh_u64 cv_r[8])
377 _mm256_storeu_si256(M256_CAST(cv_l+0), _mm256_permute4x64_epi64(
378 _mm256_loadu_si256(CONST_M256_CAST(cv_l+0)), _MM_SHUFFLE(3,1,0,2)));
379 _mm256_storeu_si256(M256_CAST(cv_l+4), _mm256_permute4x64_epi64(
380 _mm256_loadu_si256(CONST_M256_CAST(cv_l+4)), _MM_SHUFFLE(3,1,0,2)));
381 _mm256_storeu_si256(M256_CAST(cv_r+0), _mm256_permute4x64_epi64(
382 _mm256_loadu_si256(CONST_M256_CAST(cv_r+0)), _MM_SHUFFLE(1,2,3,0)));
383 _mm256_storeu_si256(M256_CAST(cv_r+4), _mm256_permute4x64_epi64(
384 _mm256_loadu_si256(CONST_M256_CAST(cv_r+4)), _MM_SHUFFLE(1,2,3,0)));
386 temp[0] = _mm256_loadu_si256(CONST_M256_CAST(cv_l+0));
387 temp[1] = _mm256_loadu_si256(CONST_M256_CAST(cv_r+0));
389 _mm256_storeu_si256(M256_CAST(cv_l+0),
390 _mm256_loadu_si256(CONST_M256_CAST(cv_l+4)));
391 _mm256_storeu_si256(M256_CAST(cv_l+4),
392 _mm256_loadu_si256(CONST_M256_CAST(cv_r+4)));
394 _mm256_storeu_si256(M256_CAST(cv_r+0), temp[0]);
395 _mm256_storeu_si256(M256_CAST(cv_r+4), temp[1]);
402 template <
unsigned int Alpha,
unsigned int Beta>
403 inline void mix(lsh_u64 cv_l[8], lsh_u64 cv_r[8],
const lsh_u64 const_v[8])
406 rotate_blk<Alpha>(cv_l);
407 xor_with_const(cv_l, const_v);
409 rotate_blk<Beta>(cv_r);
411 rotate_msg_gamma(cv_r);
418 inline void compress(LSH512_AVX2_Context* ctx,
const lsh_u8 pdMsgBlk[LSH512_MSG_BLK_BYTE_LEN])
422 LSH512_AVX2_Internal s_state(ctx->cv_l);
423 LSH512_AVX2_Internal* i_state = &s_state;
425 const lsh_u64* const_v = NULL;
426 lsh_u64 *cv_l = ctx->cv_l;
427 lsh_u64 *cv_r = ctx->cv_r;
429 load_msg_blk(i_state, pdMsgBlk);
431 msg_add_even(cv_l, cv_r, i_state);
432 load_sc(&const_v, 0);
433 mix<ROT_EVEN_ALPHA, ROT_EVEN_BETA>(cv_l, cv_r, const_v);
434 word_perm(cv_l, cv_r);
436 msg_add_odd(cv_l, cv_r, i_state);
437 load_sc(&const_v, 8);
438 mix<ROT_ODD_ALPHA, ROT_ODD_BETA>(cv_l, cv_r, const_v);
439 word_perm(cv_l, cv_r);
441 for (
size_t i = 1; i < NUM_STEPS / 2; i++)
443 msg_exp_even(i_state);
444 msg_add_even(cv_l, cv_r, i_state);
445 load_sc(&const_v, 16 * i);
446 mix<ROT_EVEN_ALPHA, ROT_EVEN_BETA>(cv_l, cv_r, const_v);
447 word_perm(cv_l, cv_r);
449 msg_exp_odd(i_state);
450 msg_add_odd(cv_l, cv_r, i_state);
451 load_sc(&const_v, 16 * i + 8);
452 mix<ROT_ODD_ALPHA, ROT_ODD_BETA>(cv_l, cv_r, const_v);
453 word_perm(cv_l, cv_r);
456 msg_exp_even(i_state);
457 msg_add_even(cv_l, cv_r, i_state);
465 _mm256_storeu_si256(M256_CAST(cv_l+0),
466 _mm256_load_si256(CONST_M256_CAST(iv+0)));
467 _mm256_storeu_si256(M256_CAST(cv_l+4),
468 _mm256_load_si256(CONST_M256_CAST(iv+4)));
470 _mm256_storeu_si256(M256_CAST(cv_r+0),
471 _mm256_load_si256(CONST_M256_CAST(iv+8)));
472 _mm256_storeu_si256(M256_CAST(cv_r+4),
473 _mm256_load_si256(CONST_M256_CAST(iv+12)));
476 inline void zero_iv(lsh_u64 cv_l[8], lsh_u64 cv_r[8])
478 _mm256_storeu_si256(M256_CAST(cv_l+0), _mm256_setzero_si256());
479 _mm256_storeu_si256(M256_CAST(cv_l+4), _mm256_setzero_si256());
480 _mm256_storeu_si256(M256_CAST(cv_r+0), _mm256_setzero_si256());
481 _mm256_storeu_si256(M256_CAST(cv_r+4), _mm256_setzero_si256());
484 inline void zero_submsgs(LSH512_AVX2_Context* ctx)
486 lsh_u64* sub_msgs = ctx->sub_msgs;
488 _mm256_storeu_si256(M256_CAST(sub_msgs+ 0),
489 _mm256_setzero_si256());
490 _mm256_storeu_si256(M256_CAST(sub_msgs+ 4),
491 _mm256_setzero_si256());
493 _mm256_storeu_si256(M256_CAST(sub_msgs+ 8),
494 _mm256_setzero_si256());
495 _mm256_storeu_si256(M256_CAST(sub_msgs+12),
496 _mm256_setzero_si256());
499 inline void init224(LSH512_AVX2_Context* ctx)
504 load_iv(ctx->cv_l, ctx->cv_r, LSH512_IV224);
507 inline void init256(LSH512_AVX2_Context* ctx)
512 load_iv(ctx->cv_l, ctx->cv_r, LSH512_IV256);
515 inline void init384(LSH512_AVX2_Context* ctx)
520 load_iv(ctx->cv_l, ctx->cv_r, LSH512_IV384);
523 inline void init512(LSH512_AVX2_Context* ctx)
528 load_iv(ctx->cv_l, ctx->cv_r, LSH512_IV512);
533 inline void fin(LSH512_AVX2_Context* ctx)
537 _mm256_storeu_si256(M256_CAST(ctx->cv_l+0), _mm256_xor_si256(
538 _mm256_loadu_si256(CONST_M256_CAST(ctx->cv_l+0)),
539 _mm256_loadu_si256(CONST_M256_CAST(ctx->cv_r+0))));
541 _mm256_storeu_si256(M256_CAST(ctx->cv_l+4), _mm256_xor_si256(
542 _mm256_loadu_si256(CONST_M256_CAST(ctx->cv_l+4)),
543 _mm256_loadu_si256(CONST_M256_CAST(ctx->cv_r+4))));
548 inline void get_hash(LSH512_AVX2_Context* ctx, lsh_u8* pbHashVal)
554 lsh_uint alg_type = ctx->alg_type;
555 lsh_uint hash_val_byte_len = LSH_GET_HASHBYTE(alg_type);
556 lsh_uint hash_val_bit_len = LSH_GET_SMALL_HASHBIT(alg_type);
559 memcpy(pbHashVal, ctx->cv_l, hash_val_byte_len);
560 if (hash_val_bit_len){
561 pbHashVal[hash_val_byte_len-1] &= (((lsh_u8)0xff) << hash_val_bit_len);
567 lsh_err lsh512_init_avx2(LSH512_AVX2_Context* ctx)
572 lsh_u32 alg_type = ctx->alg_type;
573 const lsh_u64* const_v = NULL;
574 ctx->remain_databitlen = 0;
580 case LSH_TYPE_512_512:
583 case LSH_TYPE_512_384:
586 case LSH_TYPE_512_256:
589 case LSH_TYPE_512_224:
596 lsh_u64* cv_l = ctx->cv_l;
597 lsh_u64* cv_r = ctx->cv_r;
600 cv_l[0] = LSH512_HASH_VAL_MAX_BYTE_LEN;
601 cv_l[1] = LSH_GET_HASHBIT(alg_type);
603 for (
size_t i = 0; i < NUM_STEPS / 2; i++)
606 load_sc(&const_v, i * 16);
607 mix<ROT_EVEN_ALPHA, ROT_EVEN_BETA>(cv_l, cv_r, const_v);
608 word_perm(cv_l, cv_r);
610 load_sc(&const_v, i * 16 + 8);
611 mix<ROT_ODD_ALPHA, ROT_ODD_BETA>(cv_l, cv_r, const_v);
612 word_perm(cv_l, cv_r);
618 lsh_err lsh512_update_avx2(LSH512_AVX2_Context* ctx,
const lsh_u8* data,
size_t databitlen)
628 if (databitlen == 0){
633 size_t databytelen = databitlen >> 3;
635 const size_t pos2 = 0;
637 size_t remain_msg_byte =
static_cast<size_t>(ctx->remain_databitlen >> 3);
639 const size_t remain_msg_bit = 0;
641 if (remain_msg_byte >= LSH512_MSG_BLK_BYTE_LEN){
642 return LSH_ERR_INVALID_STATE;
644 if (remain_msg_bit > 0){
645 return LSH_ERR_INVALID_DATABITLEN;
648 if (databytelen + remain_msg_byte < LSH512_MSG_BLK_BYTE_LEN){
649 memcpy(ctx->last_block + remain_msg_byte, data, databytelen);
650 ctx->remain_databitlen += (lsh_uint)databitlen;
651 remain_msg_byte += (lsh_uint)databytelen;
653 ctx->last_block[remain_msg_byte] = data[databytelen] & ((0xff >> pos2) ^ 0xff);
658 if (remain_msg_byte > 0){
659 size_t more_byte = LSH512_MSG_BLK_BYTE_LEN - remain_msg_byte;
660 memcpy(ctx->last_block + remain_msg_byte, data, more_byte);
661 compress(ctx, ctx->last_block);
663 databytelen -= more_byte;
665 ctx->remain_databitlen = 0;
668 while (databytelen >= LSH512_MSG_BLK_BYTE_LEN)
674 data += LSH512_MSG_BLK_BYTE_LEN;
675 databytelen -= LSH512_MSG_BLK_BYTE_LEN;
678 if (databytelen > 0){
679 memcpy(ctx->last_block, data, databytelen);
680 ctx->remain_databitlen = (lsh_uint)(databytelen << 3);
684 ctx->last_block[databytelen] = data[databytelen] & ((0xff >> pos2) ^ 0xff);
685 ctx->remain_databitlen += pos2;
690 lsh_err lsh512_final_avx2(LSH512_AVX2_Context* ctx, lsh_u8* hashval)
699 size_t remain_msg_byte =
static_cast<size_t>(ctx->remain_databitlen >> 3);
701 const size_t remain_msg_bit = 0;
703 if (remain_msg_byte >= LSH512_MSG_BLK_BYTE_LEN){
704 return LSH_ERR_INVALID_STATE;
708 ctx->last_block[remain_msg_byte] |= (0x1 << (7 - remain_msg_bit));
711 ctx->last_block[remain_msg_byte] = 0x80;
713 memset(ctx->last_block + remain_msg_byte + 1, 0, LSH512_MSG_BLK_BYTE_LEN - remain_msg_byte - 1);
715 compress(ctx, ctx->last_block);
718 get_hash(ctx, hashval);
723 ANONYMOUS_NAMESPACE_END
728 void LSH512_Base_Restart_AVX2(
word64* state)
730 state[RemainingBits] = 0;
731 LSH512_AVX2_Context ctx(state, state[AlgorithmType], state[RemainingBits]);
732 lsh_err err = lsh512_init_avx2(&ctx);
734 if (err != LSH_SUCCESS)
739 void LSH512_Base_Update_AVX2(
word64* state,
const byte *input,
size_t size)
741 LSH512_AVX2_Context ctx(state, state[AlgorithmType], state[RemainingBits]);
742 lsh_err err = lsh512_update_avx2(&ctx, input, 8*size);
744 if (err != LSH_SUCCESS)
749 void LSH512_Base_TruncatedFinal_AVX2(
word64* state,
byte *hash,
size_t)
751 LSH512_AVX2_Context ctx(state, state[AlgorithmType], state[RemainingBits]);
752 lsh_err err = lsh512_final_avx2(&ctx, hash);
754 if (err != LSH_SUCCESS)
760 #endif // CRYPTOPP_AVX2_AVAILABLE