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#pragma once
typedef struct {
uint32_t h[8], s[4], t[2];
uint32_t buflen;
int nullt;
uint8_t buf[64];
} blake_state;
#define U8TO32(p) \
(((uint32_t)((p)[0]) << 24) | ((uint32_t)((p)[1]) << 16) | \
((uint32_t)((p)[2]) << 8) | ((uint32_t)((p)[3]) ))
#define U32TO8(p, v) \
(p)[0] = (uint8_t)((v) >> 24); (p)[1] = (uint8_t)((v) >> 16); \
(p)[2] = (uint8_t)((v) >> 8); (p)[3] = (uint8_t)((v) );
#define BLAKE_ROT(x,n) ROTR32(x, n)
#define BLAKE_G(a,b,c,d,e) \
v[a] += (m[d_blake_sigma[i][e]] ^ d_blake_cst[d_blake_sigma[i][e+1]]) + v[b]; \
v[d] = BLAKE_ROT(v[d] ^ v[a],16); \
v[c] += v[d]; \
v[b] = BLAKE_ROT(v[b] ^ v[c],12); \
v[a] += (m[d_blake_sigma[i][e+1]] ^ d_blake_cst[d_blake_sigma[i][e]])+v[b]; \
v[d] = BLAKE_ROT(v[d] ^ v[a], 8); \
v[c] += v[d]; \
v[b] = BLAKE_ROT(v[b] ^ v[c], 7);
__constant__ uint8_t d_blake_sigma[14][16] =
{
{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},
{14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3},
{11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4},
{7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8},
{9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13},
{2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9},
{12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11},
{13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10},
{6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5},
{10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13, 0},
{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},
{14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3},
{11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4},
{7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8}
};
__constant__ uint32_t d_blake_cst[16]
= {
0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344,
0xA4093822, 0x299F31D0, 0x082EFA98, 0xEC4E6C89,
0x452821E6, 0x38D01377, 0xBE5466CF, 0x34E90C6C,
0xC0AC29B7, 0xC97C50DD, 0x3F84D5B5, 0xB5470917
};
__device__ void cn_blake_compress(blake_state * S, const uint8_t * block)
{
uint32_t v[16], m[16], i;
for (i = 0; i < 16; ++i) m[i] = U8TO32(block + i * 4);
for (i = 0; i < 8; ++i) v[i] = S->h[i];
v[ 8] = S->s[0] ^ 0x243F6A88;
v[ 9] = S->s[1] ^ 0x85A308D3;
v[10] = S->s[2] ^ 0x13198A2E;
v[11] = S->s[3] ^ 0x03707344;
v[12] = 0xA4093822;
v[13] = 0x299F31D0;
v[14] = 0x082EFA98;
v[15] = 0xEC4E6C89;
if (S->nullt == 0)
{
v[12] ^= S->t[0];
v[13] ^= S->t[0];
v[14] ^= S->t[1];
v[15] ^= S->t[1];
}
for (i = 0; i < 14; ++i)
{
BLAKE_G(0, 4, 8, 12, 0);
BLAKE_G(1, 5, 9, 13, 2);
BLAKE_G(2, 6, 10, 14, 4);
BLAKE_G(3, 7, 11, 15, 6);
BLAKE_G(3, 4, 9, 14, 14);
BLAKE_G(2, 7, 8, 13, 12);
BLAKE_G(0, 5, 10, 15, 8);
BLAKE_G(1, 6, 11, 12, 10);
}
for (i = 0; i < 16; ++i) S->h[i % 8] ^= v[i];
for (i = 0; i < 8; ++i) S->h[i] ^= S->s[i % 4];
}
__device__ void cn_blake_update(blake_state * S, const uint8_t * data, uint64_t datalen)
{
uint32_t left = S->buflen >> 3;
uint32_t fill = 64 - left;
if (left && (((datalen >> 3) & 0x3F) >= fill))
{
memcpy((void *) (S->buf + left), (void *) data, fill);
S->t[0] += 512;
if (S->t[0] == 0) S->t[1]++;
cn_blake_compress(S, S->buf);
data += fill;
datalen -= (fill << 3);
left = 0;
}
while (datalen >= 512)
{
S->t[0] += 512;
if (S->t[0] == 0) S->t[1]++;
cn_blake_compress(S, data);
data += 64;
datalen -= 512;
}
if (datalen > 0)
{
memcpy((void *) (S->buf + left), (void *) data, datalen >> 3);
S->buflen = (left << 3) + datalen;
}
else
{
S->buflen = 0;
}
}
__device__ void cn_blake_final(blake_state * S, uint8_t * digest)
{
const uint8_t padding[] =
{
0x80,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
};
uint8_t pa = 0x81, pb = 0x01;
uint8_t msglen[8];
uint32_t lo = S->t[0] + S->buflen, hi = S->t[1];
if (lo < (unsigned) S->buflen) hi++;
U32TO8(msglen + 0, hi);
U32TO8(msglen + 4, lo);
if (S->buflen == 440)
{
S->t[0] -= 8;
cn_blake_update(S, &pa, 8);
}
else
{
if (S->buflen < 440)
{
if (S->buflen == 0) S->nullt = 1;
S->t[0] -= 440 - S->buflen;
cn_blake_update(S, padding, 440 - S->buflen);
}
else
{
S->t[0] -= 512 - S->buflen;
cn_blake_update(S, padding, 512 - S->buflen);
S->t[0] -= 440;
cn_blake_update(S, padding + 1, 440);
S->nullt = 1;
}
cn_blake_update(S, &pb, 8);
S->t[0] -= 8;
}
S->t[0] -= 64;
cn_blake_update(S, msglen, 64);
U32TO8(digest + 0, S->h[0]);
U32TO8(digest + 4, S->h[1]);
U32TO8(digest + 8, S->h[2]);
U32TO8(digest + 12, S->h[3]);
U32TO8(digest + 16, S->h[4]);
U32TO8(digest + 20, S->h[5]);
U32TO8(digest + 24, S->h[6]);
U32TO8(digest + 28, S->h[7]);
}
__device__ void cn_blake(const uint8_t * in, uint64_t inlen, uint8_t * out)
{
blake_state bs;
blake_state *S = (blake_state *)&bs;
S->h[0] = 0x6A09E667; S->h[1] = 0xBB67AE85; S->h[2] = 0x3C6EF372;
S->h[3] = 0xA54FF53A; S->h[4] = 0x510E527F; S->h[5] = 0x9B05688C;
S->h[6] = 0x1F83D9AB; S->h[7] = 0x5BE0CD19;
S->t[0] = S->t[1] = S->buflen = S->nullt = 0;
S->s[0] = S->s[1] = S->s[2] = S->s[3] = 0;
cn_blake_update(S, (uint8_t *)in, inlen * 8);
cn_blake_final(S, (uint8_t *)out);
}
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