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By	garethheyes (Root)
Tag Name	skein512
Param1
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Help	skein512 hashing no params required

skein512 = function() { function hex2string(s) { for(var c=[], len=s.length, i=0; i<len; i+=2) c.push(String.fromCharCode(parseInt(s.substring(i, i+2),16))); return c.join(''); } function hex2bytes(s) { for(var c=[], len=s.length, i=0; i<len; i+=2) c.push(parseInt(s.substring(i, i+2),16)); return c; } function string2hex(s) { for(var p=[], len=s.length, i=0; i<len; i++) { p.push((256+s.charCodeAt(i)).toString(16).substring(1)); } return p.join(''); } function string2bytes(s) { for (var b=[], i=0; i < s.length; i++) b[i] = s.charCodeAt(i); return b; } function hash(s) { var msg = hex2bytes(s); // final: 0x80; first: 0x40; conf: 0x4; msg: 0x30; out: 0x3f var tweak = [[0, 32], [(0x80 + 0x40 + 0x4) << 24, 0]], c = []; var buff = string2bytes("SHA3\1\0\0\0\0\2"); block(c, tweak, buff, 0); tweak = [[0, 0], [(0x40 + 0x30) << 24, 0]]; var len = msg.length, pos = 0; for(; len > 64; len -= 64, pos += 64) { tweak[0][1] += 64; block(c, tweak, msg, pos); tweak[1][0] = 0x30 << 24; } tweak[0][1] += len; tweak[1][0] \|= 0x80 << 24; block(c, tweak, msg, pos); tweak[0][1] = 8; tweak[1][0] = (0x80 + 0x40 + 0x3f) << 24; block(c, tweak, [], 0); for (var hash = [], i = 0; i < 64; i++) { var b = shiftRight(c[i >> 3], (i & 7) * 8)[1] & 255; hash.push((256+b).toString(16).substring(1)); } return hash.join(''); } function shiftLeft(x, n) { if (x == null) return [0, 0]; if (n > 32) return [x[1] << (n-32), 0]; if (n == 32) return [x[1], 0]; if (n == 0) return x; return [(x[0] << n) \| (x[1] >>> (32 - n)), x[1] << n]; } function shiftRight(x, n) { if (x == null) return [0, 0]; if (n > 32) return [0, x[0] >>> (n-32)]; if (n == 32) return [0, x[0]]; if (n == 0) return x; return [x[0] >>> n, (x[0] << (32 - n)) \| (x[1] >>> n)]; } function add(x, y) { if (y == null) return x; var lsw = (x[1] & 0xffff) + (y[1] & 0xffff); var msw = (x[1] >>> 16) + (y[1] >>> 16) + (lsw >>> 16); var lowOrder = ((msw & 0xffff) << 16) \| (lsw & 0xffff); lsw = (x[0] & 0xffff) + (y[0] & 0xffff) + (msw >>>16); msw = (x[0] >>> 16)+(y[0] >>> 16) + (lsw >>> 16); var highOrder = ((msw & 0xffff) << 16) \| (lsw & 0xffff); return [highOrder,lowOrder]; } function xor(a, b) { if (b == null) return a; return [a[0] ^ b[0], a[1] ^ b[1]]; } function block(c, tweak, b, off) { var R = [46, 36, 19, 37, 33, 42, 14, 27, 17, 49, 36, 39, 44, 56, 54, 9, 39, 30, 34, 24, 13, 17, 10, 50, 25, 29, 39, 43, 8, 22, 56, 35]; var x = [], t = []; c[8] = [0x55555555, 0x55555555]; for (var i = 0; i < 8; i++) { for (var j = 7, k = off + i * 8 + 7; j >= 0; j--, k--) { t[i] = shiftLeft(t[i], 8); t[i][1] \|= b[k] & 255; } x[i] = add(t[i], c[i]); c[8] = xor(c[8], c[i]); } x[5] = add(x[5], tweak[0]); x[6] = add(x[6], tweak[1]); tweak[2] = xor(tweak[0], tweak[1]); for (var round = 1; round <= 18; round++) { var p = 16 - ((round & 1) << 4); for (var i = 0; i < 16; i++) { // m: 0, 2, 4, 6, 2, 0, 6, 4, 4, 6, 0, 2, 6, 4, 2, 0 var m = 2 * ((i + (1 + i + i) * (i >> 2)) & 3); var n = (1 + i + i) & 7; var r = R[p + i]; x[m] = add(x[m], x[n]); x[n] = xor(shiftLeft(x[n], r), shiftRight(x[n], 64 - r)); x[n] = xor(x[n], x[m]); } for (var i = 0; i < 8; i++) x[i] = add(x[i], c[(round + i) % 9]); x[5] = add(x[5], tweak[round % 3]); x[6] = add(x[6], tweak[(round + 1) % 3]); x[7] = add(x[7], [0, round]); } for (var i = 0; i < 8; i++) c[i] = xor(t[i], x[i]); } return {hash:hash}; }(); code = code.HV('tocharcodes',['',',']).split(','); for(var i=0;i<code.length;i++) { code[i] = parseInt(code[i],10).toString(16); } skein512.hash(code.join(""));

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