417 lines
14 KiB
JavaScript
417 lines
14 KiB
JavaScript
const SHA512_HASH_SIZE = 64;
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const K = [
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0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd, 0xb5c0fbcf, 0xec4d3b2f,
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0xe9b5dba5, 0x8189dbbc, 0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
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0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118, 0xd807aa98, 0xa3030242,
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0x12835b01, 0x45706fbe, 0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
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0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1, 0x9bdc06a7, 0x25c71235,
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0xc19bf174, 0xcf692694, 0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
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0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65, 0x2de92c6f, 0x592b0275,
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0x4a7484aa, 0x6ea6e483, 0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
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0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210, 0xb00327c8, 0x98fb213f,
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0xbf597fc7, 0xbeef0ee4, 0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
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0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70, 0x27b70a85, 0x46d22ffc,
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0x2e1b2138, 0x5c26c926, 0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
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0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8, 0x81c2c92e, 0x47edaee6,
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0x92722c85, 0x1482353b, 0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
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0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30, 0xd192e819, 0xd6ef5218,
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0xd6990624, 0x5565a910, 0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
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0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53, 0x2748774c, 0xdf8eeb99,
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0x34b0bcb5, 0xe19b48a8, 0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
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0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3, 0x748f82ee, 0x5defb2fc,
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0x78a5636f, 0x43172f60, 0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
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0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9, 0xbef9a3f7, 0xb2c67915,
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0xc67178f2, 0xe372532b, 0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
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0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178, 0x06f067aa, 0x72176fba,
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0x0a637dc5, 0xa2c898a6, 0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
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0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493, 0x3c9ebe0a, 0x15c9bebc,
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0x431d67c4, 0x9c100d4c, 0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
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0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817,
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];
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function ts64(x, i, h, l) {
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x[i] = (h >> 24) & 0xff;
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x[i + 1] = (h >> 16) & 0xff;
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x[i + 2] = (h >> 8) & 0xff;
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x[i + 3] = h & 0xff;
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x[i + 4] = (l >> 24) & 0xff;
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x[i + 5] = (l >> 16) & 0xff;
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x[i + 6] = (l >> 8) & 0xff;
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x[i + 7] = l & 0xff;
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}
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function crypto_hashblocks_hl(hh, hl, m, n) {
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const wh = new Int32Array(16), wl = new Int32Array(16);
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let bh0, bh1, bh2, bh3, bh4, bh5, bh6, bh7, bl0, bl1, bl2, bl3, bl4, bl5, bl6, bl7, th, tl, i, j, h, l, a, b, c, d;
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let ah0 = hh[0], ah1 = hh[1], ah2 = hh[2], ah3 = hh[3], ah4 = hh[4], ah5 = hh[5], ah6 = hh[6], ah7 = hh[7], al0 = hl[0], al1 = hl[1], al2 = hl[2], al3 = hl[3], al4 = hl[4], al5 = hl[5], al6 = hl[6], al7 = hl[7];
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let pos = 0;
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while (n >= 128) {
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for (i = 0; i < 16; i++) {
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j = 8 * i + pos;
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wh[i] = (m[j + 0] << 24) | (m[j + 1] << 16) | (m[j + 2] << 8) | m[j + 3];
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wl[i] = (m[j + 4] << 24) | (m[j + 5] << 16) | (m[j + 6] << 8) | m[j + 7];
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}
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for (i = 0; i < 80; i++) {
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bh0 = ah0;
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bh1 = ah1;
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bh2 = ah2;
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bh3 = ah3;
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bh4 = ah4;
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bh5 = ah5;
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bh6 = ah6;
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bh7 = ah7;
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bl0 = al0;
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bl1 = al1;
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bl2 = al2;
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bl3 = al3;
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bl4 = al4;
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bl5 = al5;
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bl6 = al6;
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bl7 = al7;
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// add
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h = ah7;
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l = al7;
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a = l & 0xffff;
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b = l >>> 16;
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c = h & 0xffff;
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d = h >>> 16;
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// Sigma1
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h =
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((ah4 >>> 14) | (al4 << (32 - 14))) ^
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((ah4 >>> 18) | (al4 << (32 - 18))) ^
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((al4 >>> (41 - 32)) | (ah4 << (32 - (41 - 32))));
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l =
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((al4 >>> 14) | (ah4 << (32 - 14))) ^
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((al4 >>> 18) | (ah4 << (32 - 18))) ^
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((ah4 >>> (41 - 32)) | (al4 << (32 - (41 - 32))));
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a += l & 0xffff;
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b += l >>> 16;
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c += h & 0xffff;
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d += h >>> 16;
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// Ch
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h = (ah4 & ah5) ^ (~ah4 & ah6);
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l = (al4 & al5) ^ (~al4 & al6);
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a += l & 0xffff;
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b += l >>> 16;
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c += h & 0xffff;
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d += h >>> 16;
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// K
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h = K[i * 2];
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l = K[i * 2 + 1];
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a += l & 0xffff;
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b += l >>> 16;
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c += h & 0xffff;
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d += h >>> 16;
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// w
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h = wh[i % 16];
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l = wl[i % 16];
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a += l & 0xffff;
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b += l >>> 16;
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c += h & 0xffff;
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d += h >>> 16;
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b += a >>> 16;
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c += b >>> 16;
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d += c >>> 16;
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th = (c & 0xffff) | (d << 16);
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tl = (a & 0xffff) | (b << 16);
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// add
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h = th;
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l = tl;
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a = l & 0xffff;
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b = l >>> 16;
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c = h & 0xffff;
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d = h >>> 16;
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// Sigma0
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h =
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((ah0 >>> 28) | (al0 << (32 - 28))) ^
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((al0 >>> (34 - 32)) | (ah0 << (32 - (34 - 32)))) ^
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((al0 >>> (39 - 32)) | (ah0 << (32 - (39 - 32))));
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l =
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((al0 >>> 28) | (ah0 << (32 - 28))) ^
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((ah0 >>> (34 - 32)) | (al0 << (32 - (34 - 32)))) ^
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((ah0 >>> (39 - 32)) | (al0 << (32 - (39 - 32))));
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a += l & 0xffff;
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b += l >>> 16;
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c += h & 0xffff;
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d += h >>> 16;
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// Maj
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h = (ah0 & ah1) ^ (ah0 & ah2) ^ (ah1 & ah2);
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l = (al0 & al1) ^ (al0 & al2) ^ (al1 & al2);
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a += l & 0xffff;
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b += l >>> 16;
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c += h & 0xffff;
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d += h >>> 16;
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b += a >>> 16;
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c += b >>> 16;
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d += c >>> 16;
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bh7 = (c & 0xffff) | (d << 16);
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bl7 = (a & 0xffff) | (b << 16);
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// add
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h = bh3;
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l = bl3;
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a = l & 0xffff;
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b = l >>> 16;
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c = h & 0xffff;
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d = h >>> 16;
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h = th;
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l = tl;
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a += l & 0xffff;
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b += l >>> 16;
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c += h & 0xffff;
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d += h >>> 16;
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b += a >>> 16;
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c += b >>> 16;
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d += c >>> 16;
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bh3 = (c & 0xffff) | (d << 16);
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bl3 = (a & 0xffff) | (b << 16);
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ah1 = bh0;
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ah2 = bh1;
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ah3 = bh2;
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ah4 = bh3;
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ah5 = bh4;
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ah6 = bh5;
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ah7 = bh6;
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ah0 = bh7;
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al1 = bl0;
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al2 = bl1;
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al3 = bl2;
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al4 = bl3;
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al5 = bl4;
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al6 = bl5;
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al7 = bl6;
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al0 = bl7;
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if (i % 16 === 15) {
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for (j = 0; j < 16; j++) {
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// add
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h = wh[j];
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l = wl[j];
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a = l & 0xffff;
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b = l >>> 16;
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c = h & 0xffff;
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d = h >>> 16;
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h = wh[(j + 9) % 16];
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l = wl[(j + 9) % 16];
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a += l & 0xffff;
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b += l >>> 16;
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c += h & 0xffff;
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d += h >>> 16;
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// sigma0
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th = wh[(j + 1) % 16];
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tl = wl[(j + 1) % 16];
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h =
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((th >>> 1) | (tl << (32 - 1))) ^
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((th >>> 8) | (tl << (32 - 8))) ^
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(th >>> 7);
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l =
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((tl >>> 1) | (th << (32 - 1))) ^
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((tl >>> 8) | (th << (32 - 8))) ^
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((tl >>> 7) | (th << (32 - 7)));
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a += l & 0xffff;
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b += l >>> 16;
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c += h & 0xffff;
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d += h >>> 16;
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// sigma1
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th = wh[(j + 14) % 16];
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tl = wl[(j + 14) % 16];
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h =
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((th >>> 19) | (tl << (32 - 19))) ^
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((tl >>> (61 - 32)) | (th << (32 - (61 - 32)))) ^
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(th >>> 6);
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l =
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((tl >>> 19) | (th << (32 - 19))) ^
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((th >>> (61 - 32)) | (tl << (32 - (61 - 32)))) ^
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((tl >>> 6) | (th << (32 - 6)));
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a += l & 0xffff;
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b += l >>> 16;
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c += h & 0xffff;
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d += h >>> 16;
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b += a >>> 16;
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c += b >>> 16;
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d += c >>> 16;
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wh[j] = (c & 0xffff) | (d << 16);
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wl[j] = (a & 0xffff) | (b << 16);
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}
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}
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}
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// add
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h = ah0;
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l = al0;
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a = l & 0xffff;
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b = l >>> 16;
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c = h & 0xffff;
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d = h >>> 16;
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h = hh[0];
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l = hl[0];
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a += l & 0xffff;
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b += l >>> 16;
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c += h & 0xffff;
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d += h >>> 16;
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b += a >>> 16;
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c += b >>> 16;
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d += c >>> 16;
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hh[0] = ah0 = (c & 0xffff) | (d << 16);
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hl[0] = al0 = (a & 0xffff) | (b << 16);
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h = ah1;
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l = al1;
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a = l & 0xffff;
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b = l >>> 16;
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c = h & 0xffff;
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d = h >>> 16;
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h = hh[1];
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l = hl[1];
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a += l & 0xffff;
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b += l >>> 16;
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c += h & 0xffff;
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d += h >>> 16;
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b += a >>> 16;
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c += b >>> 16;
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d += c >>> 16;
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hh[1] = ah1 = (c & 0xffff) | (d << 16);
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hl[1] = al1 = (a & 0xffff) | (b << 16);
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h = ah2;
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l = al2;
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a = l & 0xffff;
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b = l >>> 16;
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c = h & 0xffff;
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d = h >>> 16;
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h = hh[2];
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l = hl[2];
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a += l & 0xffff;
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b += l >>> 16;
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c += h & 0xffff;
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d += h >>> 16;
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b += a >>> 16;
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c += b >>> 16;
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d += c >>> 16;
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hh[2] = ah2 = (c & 0xffff) | (d << 16);
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hl[2] = al2 = (a & 0xffff) | (b << 16);
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h = ah3;
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l = al3;
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a = l & 0xffff;
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b = l >>> 16;
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c = h & 0xffff;
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d = h >>> 16;
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h = hh[3];
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l = hl[3];
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a += l & 0xffff;
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b += l >>> 16;
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c += h & 0xffff;
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d += h >>> 16;
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b += a >>> 16;
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c += b >>> 16;
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d += c >>> 16;
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hh[3] = ah3 = (c & 0xffff) | (d << 16);
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hl[3] = al3 = (a & 0xffff) | (b << 16);
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h = ah4;
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l = al4;
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a = l & 0xffff;
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b = l >>> 16;
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c = h & 0xffff;
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d = h >>> 16;
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h = hh[4];
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l = hl[4];
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a += l & 0xffff;
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b += l >>> 16;
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c += h & 0xffff;
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d += h >>> 16;
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b += a >>> 16;
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c += b >>> 16;
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d += c >>> 16;
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hh[4] = ah4 = (c & 0xffff) | (d << 16);
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hl[4] = al4 = (a & 0xffff) | (b << 16);
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h = ah5;
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l = al5;
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a = l & 0xffff;
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b = l >>> 16;
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c = h & 0xffff;
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d = h >>> 16;
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h = hh[5];
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l = hl[5];
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a += l & 0xffff;
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b += l >>> 16;
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c += h & 0xffff;
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d += h >>> 16;
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b += a >>> 16;
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c += b >>> 16;
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d += c >>> 16;
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hh[5] = ah5 = (c & 0xffff) | (d << 16);
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hl[5] = al5 = (a & 0xffff) | (b << 16);
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h = ah6;
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l = al6;
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a = l & 0xffff;
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b = l >>> 16;
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c = h & 0xffff;
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d = h >>> 16;
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h = hh[6];
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l = hl[6];
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a += l & 0xffff;
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b += l >>> 16;
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c += h & 0xffff;
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d += h >>> 16;
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b += a >>> 16;
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c += b >>> 16;
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d += c >>> 16;
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hh[6] = ah6 = (c & 0xffff) | (d << 16);
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hl[6] = al6 = (a & 0xffff) | (b << 16);
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h = ah7;
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l = al7;
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a = l & 0xffff;
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b = l >>> 16;
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c = h & 0xffff;
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d = h >>> 16;
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h = hh[7];
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l = hl[7];
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a += l & 0xffff;
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b += l >>> 16;
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c += h & 0xffff;
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d += h >>> 16;
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b += a >>> 16;
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c += b >>> 16;
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d += c >>> 16;
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hh[7] = ah7 = (c & 0xffff) | (d << 16);
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hl[7] = al7 = (a & 0xffff) | (b << 16);
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pos += 128;
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n -= 128;
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}
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return n;
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}
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const sha512internal = function (out, m, n) {
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const hh = new Int32Array(8), hl = new Int32Array(8), x = new Uint8Array(256), b = n;
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let i;
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hh[0] = 0x6a09e667;
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hh[1] = 0xbb67ae85;
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hh[2] = 0x3c6ef372;
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hh[3] = 0xa54ff53a;
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hh[4] = 0x510e527f;
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hh[5] = 0x9b05688c;
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hh[6] = 0x1f83d9ab;
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hh[7] = 0x5be0cd19;
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hl[0] = 0xf3bcc908;
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hl[1] = 0x84caa73b;
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hl[2] = 0xfe94f82b;
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hl[3] = 0x5f1d36f1;
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hl[4] = 0xade682d1;
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hl[5] = 0x2b3e6c1f;
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hl[6] = 0xfb41bd6b;
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hl[7] = 0x137e2179;
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crypto_hashblocks_hl(hh, hl, m, n);
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n %= 128;
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for (i = 0; i < n; i++)
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x[i] = m[b - n + i];
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x[n] = 128;
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n = 256 - 128 * (n < 112 ? 1 : 0);
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x[n - 9] = 0;
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ts64(x, n - 8, (b / 0x20000000) | 0, b << 3);
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crypto_hashblocks_hl(hh, hl, x, n);
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for (i = 0; i < 8; i++)
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ts64(out, 8 * i, hh[i], hl[i]);
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return 0;
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};
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// sha512 is the standard sha512 cryptographic hash function. This is the
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// default choice for Skynet operations, though many of the Sia protocol
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// standards use blake2b instead, so you will see both.
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function sha512(m) {
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const out = new Uint8Array(SHA512_HASH_SIZE);
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sha512internal(out, m, m.length);
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return out;
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}
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export { SHA512_HASH_SIZE, sha512, sha512internal };
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