-struct sha512_ctx
-{
- unsigned long long state[8];
- unsigned int count[4];
- unsigned char buf[128];
-};
-
-static unsigned long long
-Ch (unsigned long long x, unsigned long long y, unsigned long long z)
-{
- return z ^ (x & (y ^ z));
-}
-
-static unsigned long long
-Maj (unsigned long long x, unsigned long long y, unsigned long long z)
-{
- return (x & y) | (z & (x | y));
-}
-
-static unsigned long long
-RORu64 (unsigned long long x, unsigned long long y)
-{
- return (x >> y) | (x << (64 - y));
-}
-
-const unsigned long long sha512_K[80] = {
- 0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL, 0xb5c0fbcfec4d3b2fULL,
- 0xe9b5dba58189dbbcULL, 0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL,
- 0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL, 0xd807aa98a3030242ULL,
- 0x12835b0145706fbeULL, 0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL,
- 0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL, 0x9bdc06a725c71235ULL,
- 0xc19bf174cf692694ULL, 0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL,
- 0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL, 0x2de92c6f592b0275ULL,
- 0x4a7484aa6ea6e483ULL, 0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL,
- 0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL, 0xb00327c898fb213fULL,
- 0xbf597fc7beef0ee4ULL, 0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL,
- 0x06ca6351e003826fULL, 0x142929670a0e6e70ULL, 0x27b70a8546d22ffcULL,
- 0x2e1b21385c26c926ULL, 0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL,
- 0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL, 0x81c2c92e47edaee6ULL,
- 0x92722c851482353bULL, 0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL,
- 0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL, 0xd192e819d6ef5218ULL,
- 0xd69906245565a910ULL, 0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL,
- 0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL, 0x2748774cdf8eeb99ULL,
- 0x34b0bcb5e19b48a8ULL, 0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL,
- 0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL, 0x748f82ee5defb2fcULL,
- 0x78a5636f43172f60ULL, 0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL,
- 0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL, 0xbef9a3f7b2c67915ULL,
- 0xc67178f2e372532bULL, 0xca273eceea26619cULL, 0xd186b8c721c0c207ULL,
- 0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL, 0x06f067aa72176fbaULL,
- 0x0a637dc5a2c898a6ULL, 0x113f9804bef90daeULL, 0x1b710b35131c471bULL,
- 0x28db77f523047d84ULL, 0x32caab7b40c72493ULL, 0x3c9ebe0a15c9bebcULL,
- 0x431d67c49c100d4cULL, 0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL,
- 0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL,
-};
-
-#define e0(x) (RORu64(x,28) ^ RORu64(x,34) ^ RORu64(x,39))
-#define e1(x) (RORu64(x,14) ^ RORu64(x,18) ^ RORu64(x,41))
-#define s0(x) (RORu64(x, 1) ^ RORu64(x, 8) ^ (x >> 7))
-#define s1(x) (RORu64(x,19) ^ RORu64(x,61) ^ (x >> 6))
-
-/* H* initial state for SHA-512 */
-#define H0 0x6a09e667f3bcc908ULL
-#define H1 0xbb67ae8584caa73bULL
-#define H2 0x3c6ef372fe94f82bULL
-#define H3 0xa54ff53a5f1d36f1ULL
-#define H4 0x510e527fade682d1ULL
-#define H5 0x9b05688c2b3e6c1fULL
-#define H6 0x1f83d9abfb41bd6bULL
-#define H7 0x5be0cd19137e2179ULL
-
-/* H'* initial state for SHA-384 */
-#define HP0 0xcbbb9d5dc1059ed8ULL
-#define HP1 0x629a292a367cd507ULL
-#define HP2 0x9159015a3070dd17ULL
-#define HP3 0x152fecd8f70e5939ULL
-#define HP4 0x67332667ffc00b31ULL
-#define HP5 0x8eb44a8768581511ULL
-#define HP6 0xdb0c2e0d64f98fa7ULL
-#define HP7 0x47b5481dbefa4fa4ULL
-
-#define LOAD_OP(t1, I, W, input) \
- t1 = input[(8*I) ] & 0xff;\
- t1 <<= 8;\
- t1 |= input[(8*I)+1] & 0xff;\
- t1 <<= 8;\
- t1 |= input[(8*I)+2] & 0xff;\
- t1 <<= 8;\
- t1 |= input[(8*I)+3] & 0xff;\
- t1 <<= 8;\
- t1 |= input[(8*I)+4] & 0xff;\
- t1 <<= 8;\
- t1 |= input[(8*I)+5] & 0xff;\
- t1 <<= 8;\
- t1 |= input[(8*I)+6] & 0xff;\
- t1 <<= 8;\
- t1 |= input[(8*I)+7] & 0xff;\
- W[I] = t1;
-
-
-#define BLEND_OP(I, W) \
- W[I] = s1(W[I-2]) + W[I-7] + s0(W[I-15]) + W[I-16];
-
-static void
-sha512_transform (unsigned long long *state, const unsigned char *input)
-{
- unsigned long long a, b, c, d, e, f, g, h, t1, t2;
- unsigned long long W[80];
- unsigned long long t0;
- int i;
-
- /* load the input */
- for (i = 0; i < 16; i++)
- {
- LOAD_OP (t0, i, W, input);
- }
-
- for (i = 16; i < 80; i++)
- {
- BLEND_OP (i, W);
- }
-
- /* load the state into our registers */
- a = state[0];
- b = state[1];
- c = state[2];
- d = state[3];
- e = state[4];
- f = state[5];
- g = state[6];
- h = state[7];
-
- /* now iterate */
- for (i = 0; i < 80; i += 8)
- {
- t1 = h + e1 (e) + Ch (e, f, g) + sha512_K[i] + W[i];
- t2 = e0 (a) + Maj (a, b, c);
- d += t1;
- h = t1 + t2;
- t1 = g + e1 (d) + Ch (d, e, f) + sha512_K[i + 1] + W[i + 1];
- t2 = e0 (h) + Maj (h, a, b);
- c += t1;
- g = t1 + t2;
- t1 = f + e1 (c) + Ch (c, d, e) + sha512_K[i + 2] + W[i + 2];
- t2 = e0 (g) + Maj (g, h, a);
- b += t1;
- f = t1 + t2;
- t1 = e + e1 (b) + Ch (b, c, d) + sha512_K[i + 3] + W[i + 3];
- t2 = e0 (f) + Maj (f, g, h);
- a += t1;
- e = t1 + t2;
- t1 = d + e1 (a) + Ch (a, b, c) + sha512_K[i + 4] + W[i + 4];
- t2 = e0 (e) + Maj (e, f, g);
- h += t1;
- d = t1 + t2;
- t1 = c + e1 (h) + Ch (h, a, b) + sha512_K[i + 5] + W[i + 5];
- t2 = e0 (d) + Maj (d, e, f);
- g += t1;
- c = t1 + t2;
- t1 = b + e1 (g) + Ch (g, h, a) + sha512_K[i + 6] + W[i + 6];
- t2 = e0 (c) + Maj (c, d, e);
- f += t1;
- b = t1 + t2;
- t1 = a + e1 (f) + Ch (f, g, h) + sha512_K[i + 7] + W[i + 7];
- t2 = e0 (b) + Maj (b, c, d);
- e += t1;
- a = t1 + t2;
- }
-
- state[0] += a;
- state[1] += b;
- state[2] += c;
- state[3] += d;
- state[4] += e;
- state[5] += f;
- state[6] += g;
- state[7] += h;
-}
-
-static void
-sha512_init (struct sha512_ctx *sctx)
-{
- sctx->state[0] = H0;
- sctx->state[1] = H1;
- sctx->state[2] = H2;
- sctx->state[3] = H3;
- sctx->state[4] = H4;
- sctx->state[5] = H5;
- sctx->state[6] = H6;
- sctx->state[7] = H7;
- sctx->count[0] = sctx->count[1] = sctx->count[2] = sctx->count[3] = 0;
- memset (sctx->buf, 0, sizeof (sctx->buf));
-}