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something is working

This commit is contained in:
John Tromp 2016-10-26 23:50:49 -04:00
parent 6473d85b1f
commit 7f5063ba72
1 changed files with 33 additions and 25 deletions
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58
blake2-avx2/blake2bip.c
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@ -298,43 +298,51 @@ ALIGN(64) static const uint32_t indices[12][16] = {
} while(0)
void blake2bip_final(const blake2b_state *S, uchar *out, u32 blockidx) {
ALIGN(64) uint8_t buffer[4 * BLAKE2B_BLOCKBYTES]; // 4 * 128
memset(buffer, 0, 4 * BLAKE2B_BLOCKBYTES); // zero whole buffer
memcpy(buffer, S->buf, S->buflen);
uint32_t b = htole32(4 * blockidx);
memcpy(buffer + S->buflen, &b, 4);
size_t inlen = S->buflen + 4;
buffer[0*128+inlen-4] += 0;
memcpy(buffer + 128, buffer, inlen);
buffer[1*128+inlen-4] += 1;
memcpy(buffer + 256, buffer, inlen);
buffer[2*128+inlen-4] += 2;
memcpy(buffer + 384, buffer, inlen);
buffer[3*128+inlen-4] += 3;
__m256i v[16], s[8]; // 16 * 32, 8 * 32
__m256i v[16], s[8], iv[8], w[16]; // 16 * 32, 8 * 32
union {
__m256i v;
uint64_t w[4];
} counter;
int i;
uint32_t b;
size_t inlen;
int i, r;
ALIGN(64) uint8_t buffer[4 * BLAKE2B_BLOCKBYTES]; // 4 * 128
memset(buffer, 0, 4 * BLAKE2B_BLOCKBYTES); // zero whole buffer
for (i = 0; i < 4; i++) {
memcpy(buffer+128*i, S->buf, S->buflen);
b = htole32(4 * blockidx + i);
memcpy(buffer+128*i + S->buflen, &b, 4);
}
inlen = S->buflen + 4;
for(i = 0; i < 8; ++i) {
v[i] = _mm256_set1_epi64x(S->h[i]); // initialize all 256/64 = 4 lanes
}
#if 0 // these look blake2bp specific
v[0] = XOR(v[0], _mm256_set1_epi64x(0x02040040UL));
v[1] = XOR(v[1], _mm256_set_epi64x(3, 2, 1, 0));
v[2] = XOR(v[2], _mm256_set1_epi64x(0x00004000UL));
#endif
__m256i x4 = _mm256_set_epi64x( 0, 0, 0,inlen);
__m256i f0 = _mm256_set_epi64x(~0, ~0, ~0, ~0);
__m256i x4 = _mm256_set1_epi64x(128+inlen);
__m256i f0 = _mm256_set1_epi64x(~0);
counter.v = _mm256_add_epi64(counter.v, x4);
BLAKE2B_COMPRESS_V4(v, buffer, counter.v, f0);
for(i = 0; i < 8; ++i) {
iv[i] = v[i];
}
v[ 8] = _mm256_set1_epi64x(blake2b_IV[0]);
v[ 9] = _mm256_set1_epi64x(blake2b_IV[1]);
v[10] = _mm256_set1_epi64x(blake2b_IV[2]);
v[11] = _mm256_set1_epi64x(blake2b_IV[3]);
v[12] = XOR(_mm256_set1_epi64x(blake2b_IV[4]), counter.v);
v[13] = _mm256_set1_epi64x(blake2b_IV[5]);
v[14] = XOR(_mm256_set1_epi64x(blake2b_IV[6]), f0);
v[15] = _mm256_set1_epi64x(blake2b_IV[7]);
BLAKE2B_LOADMSG_V4(w, buffer);
for(r = 0; r < 12; ++r) {
BLAKE2B_ROUND_V4(v, w, r);
}
for(i = 0; i < 8; ++i) {
v[i] = XOR(XOR(v[i], v[i+8]), iv[i]);
}
BLAKE2B_UNPACK_STATE_V4(s, v);