@gohelpfund/x11-hash-js
Version:
x11 javascript hashing algorithm in pure javascript
516 lines (487 loc) • 17.4 kB
JavaScript
'use strict';
// Copyright 2015-2016 Chen, Yi-Cyuan
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
var HEX_CHARS = '0123456789abcdef'.split('');
var KECCAK_PADDING = [1, 256, 65536, 16777216];
var SHIFT = [0, 8, 16, 24];
var RC = [1, 0, 32898, 0, 32906, 2147483648, 2147516416, 2147483648, 32907, 0, 2147483649,
0, 2147516545, 2147483648, 32777, 2147483648, 138, 0, 136, 0, 2147516425, 0,
2147483658, 0, 2147516555, 0, 139, 2147483648, 32905, 2147483648, 32771,
2147483648, 32770, 2147483648, 128, 2147483648, 32778, 0, 2147483658, 2147483648,
2147516545, 2147483648, 32896, 2147483648, 2147483649, 0, 2147516424, 2147483648
];
var BITS = [512];
var OUTPUT_TYPES = ['hex', 'buffer', 'array'];
var h = require('./helper');
var createOutputMethod = function(bits, padding, outputType) {
return function(message) {
return new Keccak(bits, padding, bits).update(message)
[outputType]();
};
};
var createShakeOutputMethod = function(bits, padding, outputType) {
return function(message, outputBits) {
return new Keccak(bits, padding, outputBits).update(message)
[outputType]();
};
};
var createMethod = function(bits, padding) {
var method = createOutputMethod(bits, padding, 'array');
method.create = function() {
return new Keccak(bits, padding, bits);
};
method.update = function(message) {
return method.create().update(message);
};
for (var i = 0; i < OUTPUT_TYPES.length; ++i) {
var type = OUTPUT_TYPES[i];
method[type] = createOutputMethod(bits, padding, type);
}
return method;
};
var algorithms = [{
name: 'keccak',
padding: KECCAK_PADDING,
bits: BITS,
createMethod: createMethod
}];
var methods = {};
for (var i = 0; i < algorithms.length; ++i) {
var algorithm = algorithms[i];
var bits = algorithm.bits;
var createMethod = algorithm.createMethod;
for (var j = 0; j < bits.length; ++j) {
var method = algorithm.createMethod(bits[j], algorithm.padding);
methods[algorithm.name + '_' + bits[j]] = method;
}
}
function Keccak(bits, padding, outputBits) {
this.blocks = [];
this.s = [];
this.padding = padding;
this.outputBits = outputBits;
this.reset = true;
this.block = 0;
this.start = 0;
this.blockCount = (1600 - (bits << 1)) >> 5;
this.byteCount = this.blockCount << 2;
this.outputBlocks = outputBits >> 5;
this.extraBytes = (outputBits & 31) >> 3;
for (var i = 0; i < 50; ++i) {
this.s[i] = 0;
}
}
Keccak.prototype.update = function(message) {
var notString = typeof(message) !== 'string';
if (notString && Object.prototype.toString.call(message.constructor) === '[object ArrayBuffer]') {
message = h.string2bytes(message);
}
var length = message.length,
blocks = this.blocks,
byteCount = this.byteCount,
blockCount = this.blockCount,
index = 0,
s = this.s,
i, code;
while (index < length) {
if (this.reset) {
this.reset = false;
blocks[0] = this.block;
for (i = 1; i < blockCount + 1; ++i) {
blocks[i] = 0;
}
}
if (notString) {
for (i = this.start; index < length && i < byteCount; ++index) {
blocks[i >> 2] |= message[index] << SHIFT[i++ & 3];
}
}
else {
for (i = this.start; index < length && i < byteCount; ++index) {
code = message.charCodeAt(index);
if (code < 0x80) {
blocks[i >> 2] |= code << SHIFT[i++ & 3];
}
else if (code < 0x800) {
blocks[i >> 2] |= (0xc0 | (code >> 6)) << SHIFT[i++ & 3];
blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
}
else if (code < 0xd800 || code >= 0xe000) {
blocks[i >> 2] |= (0xe0 | (code >> 12)) << SHIFT[i++ & 3];
blocks[i >> 2] |= (0x80 | ((code >> 6) & 0x3f)) << SHIFT[i++ & 3];
blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
}
else {
code = 0x10000 + (((code & 0x3ff) << 10) | (message.charCodeAt(++index) & 0x3ff));
blocks[i >> 2] |= (0xf0 | (code >> 18)) << SHIFT[i++ & 3];
blocks[i >> 2] |= (0x80 | ((code >> 12) & 0x3f)) << SHIFT[i++ & 3];
blocks[i >> 2] |= (0x80 | ((code >> 6) & 0x3f)) << SHIFT[i++ & 3];
blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
}
}
}
this.lastByteIndex = i;
if (i >= byteCount) {
this.start = i - byteCount;
this.block = blocks[blockCount];
for (i = 0; i < blockCount; ++i) {
s[i] ^= blocks[i];
}
f(s);
this.reset = true;
}
else {
this.start = i;
}
}
return this;
};
Keccak.prototype.finalize = function() {
var blocks = this.blocks,
i = this.lastByteIndex,
blockCount = this.blockCount,
s = this.s;
blocks[i >> 2] |= this.padding[i & 3];
if (this.lastByteIndex == this.byteCount) {
blocks[0] = blocks[blockCount];
for (i = 1; i < blockCount + 1; ++i) {
blocks[i] = 0;
}
}
blocks[blockCount - 1] |= 0x80000000;
for (i = 0; i < blockCount; ++i) {
s[i] ^= blocks[i];
}
f(s);
};
Keccak.prototype.toString = Keccak.prototype.hex = function() {
this.finalize();
var blockCount = this.blockCount,
s = this.s,
outputBlocks = this.outputBlocks,
extraBytes = this.extraBytes,
i = 0,
j = 0;
var hex = '',
block;
while (j < outputBlocks) {
for (i = 0; i < blockCount && j < outputBlocks; ++i, ++j) {
block = s[i];
hex += HEX_CHARS[(block >> 4) & 0x0F] + HEX_CHARS[block & 0x0F] +
HEX_CHARS[(block >> 12) & 0x0F] + HEX_CHARS[(block >> 8) & 0x0F] +
HEX_CHARS[(block >> 20) & 0x0F] + HEX_CHARS[(block >> 16) & 0x0F] +
HEX_CHARS[(block >> 28) & 0x0F] + HEX_CHARS[(block >> 24) & 0x0F];
}
if (j % blockCount == 0) {
f(s);
i = 0;
}
}
if (extraBytes) {
block = s[i];
if (extraBytes > 0) {
hex += HEX_CHARS[(block >> 4) & 0x0F] + HEX_CHARS[block & 0x0F];
}
if (extraBytes > 1) {
hex += HEX_CHARS[(block >> 12) & 0x0F] + HEX_CHARS[(block >> 8) & 0x0F];
}
if (extraBytes > 2) {
hex += HEX_CHARS[(block >> 20) & 0x0F] + HEX_CHARS[(block >> 16) & 0x0F];
}
}
return hex;
};
Keccak.prototype.buffer = function() {
this.finalize();
var blockCount = this.blockCount,
s = this.s,
outputBlocks = this.outputBlocks,
extraBytes = this.extraBytes,
i = 0,
j = 0;
var bytes = this.outputBits >> 3;
var buffer;
if (extraBytes) {
buffer = new ArrayBuffer((outputBlocks + 1) << 2);
}
else {
buffer = new ArrayBuffer(bytes);
}
var array = new Uint32Array(buffer);
while (j < outputBlocks) {
for (i = 0; i < blockCount && j < outputBlocks; ++i, ++j) {
array[j] = s[i];
}
if (j % blockCount == 0) {
f(s);
}
}
if (extraBytes) {
array[i] = s[i];
buffer = buffer.slice(0, bytes);
}
return buffer;
};
Keccak.prototype.digest = Keccak.prototype.array = function() {
this.finalize();
var blockCount = this.blockCount,
s = this.s,
outputBlocks = this.outputBlocks,
extraBytes = this.extraBytes,
i = 0,
j = 0;
var array = [],
offset, block;
while (j < outputBlocks) {
for (i = 0; i < blockCount && j < outputBlocks; ++i, ++j) {
offset = j << 2;
block = s[i];
array[offset] = block & 0xFF;
array[offset + 1] = (block >> 8) & 0xFF;
array[offset + 2] = (block >> 16) & 0xFF;
array[offset + 3] = (block >> 24) & 0xFF;
}
if (j % blockCount == 0) {
f(s);
}
}
if (extraBytes) {
offset = j << 2;
block = s[i];
if (extraBytes > 0) {
array[offset] = block & 0xFF;
}
if (extraBytes > 1) {
array[offset + 1] = (block >> 8) & 0xFF;
}
if (extraBytes > 2) {
array[offset + 2] = (block >> 16) & 0xFF;
}
}
return array;
};
var f = function(s) {
var h, l, n, c0, c1, c2, c3, c4, c5, c6, c7, c8, c9,
b0, b1, b2, b3, b4, b5, b6, b7, b8, b9, b10, b11, b12, b13, b14, b15, b16, b17,
b18, b19, b20, b21, b22, b23, b24, b25, b26, b27, b28, b29, b30, b31, b32, b33,
b34, b35, b36, b37, b38, b39, b40, b41, b42, b43, b44, b45, b46, b47, b48, b49;
for (n = 0; n < 48; n += 2) {
c0 = s[0] ^ s[10] ^ s[20] ^ s[30] ^ s[40];
c1 = s[1] ^ s[11] ^ s[21] ^ s[31] ^ s[41];
c2 = s[2] ^ s[12] ^ s[22] ^ s[32] ^ s[42];
c3 = s[3] ^ s[13] ^ s[23] ^ s[33] ^ s[43];
c4 = s[4] ^ s[14] ^ s[24] ^ s[34] ^ s[44];
c5 = s[5] ^ s[15] ^ s[25] ^ s[35] ^ s[45];
c6 = s[6] ^ s[16] ^ s[26] ^ s[36] ^ s[46];
c7 = s[7] ^ s[17] ^ s[27] ^ s[37] ^ s[47];
c8 = s[8] ^ s[18] ^ s[28] ^ s[38] ^ s[48];
c9 = s[9] ^ s[19] ^ s[29] ^ s[39] ^ s[49];
h = c8 ^ ((c2 << 1) | (c3 >>> 31));
l = c9 ^ ((c3 << 1) | (c2 >>> 31));
s[0] ^= h;
s[1] ^= l;
s[10] ^= h;
s[11] ^= l;
s[20] ^= h;
s[21] ^= l;
s[30] ^= h;
s[31] ^= l;
s[40] ^= h;
s[41] ^= l;
h = c0 ^ ((c4 << 1) | (c5 >>> 31));
l = c1 ^ ((c5 << 1) | (c4 >>> 31));
s[2] ^= h;
s[3] ^= l;
s[12] ^= h;
s[13] ^= l;
s[22] ^= h;
s[23] ^= l;
s[32] ^= h;
s[33] ^= l;
s[42] ^= h;
s[43] ^= l;
h = c2 ^ ((c6 << 1) | (c7 >>> 31));
l = c3 ^ ((c7 << 1) | (c6 >>> 31));
s[4] ^= h;
s[5] ^= l;
s[14] ^= h;
s[15] ^= l;
s[24] ^= h;
s[25] ^= l;
s[34] ^= h;
s[35] ^= l;
s[44] ^= h;
s[45] ^= l;
h = c4 ^ ((c8 << 1) | (c9 >>> 31));
l = c5 ^ ((c9 << 1) | (c8 >>> 31));
s[6] ^= h;
s[7] ^= l;
s[16] ^= h;
s[17] ^= l;
s[26] ^= h;
s[27] ^= l;
s[36] ^= h;
s[37] ^= l;
s[46] ^= h;
s[47] ^= l;
h = c6 ^ ((c0 << 1) | (c1 >>> 31));
l = c7 ^ ((c1 << 1) | (c0 >>> 31));
s[8] ^= h;
s[9] ^= l;
s[18] ^= h;
s[19] ^= l;
s[28] ^= h;
s[29] ^= l;
s[38] ^= h;
s[39] ^= l;
s[48] ^= h;
s[49] ^= l;
b0 = s[0];
b1 = s[1];
b32 = (s[11] << 4) | (s[10] >>> 28);
b33 = (s[10] << 4) | (s[11] >>> 28);
b14 = (s[20] << 3) | (s[21] >>> 29);
b15 = (s[21] << 3) | (s[20] >>> 29);
b46 = (s[31] << 9) | (s[30] >>> 23);
b47 = (s[30] << 9) | (s[31] >>> 23);
b28 = (s[40] << 18) | (s[41] >>> 14);
b29 = (s[41] << 18) | (s[40] >>> 14);
b20 = (s[2] << 1) | (s[3] >>> 31);
b21 = (s[3] << 1) | (s[2] >>> 31);
b2 = (s[13] << 12) | (s[12] >>> 20);
b3 = (s[12] << 12) | (s[13] >>> 20);
b34 = (s[22] << 10) | (s[23] >>> 22);
b35 = (s[23] << 10) | (s[22] >>> 22);
b16 = (s[33] << 13) | (s[32] >>> 19);
b17 = (s[32] << 13) | (s[33] >>> 19);
b48 = (s[42] << 2) | (s[43] >>> 30);
b49 = (s[43] << 2) | (s[42] >>> 30);
b40 = (s[5] << 30) | (s[4] >>> 2);
b41 = (s[4] << 30) | (s[5] >>> 2);
b22 = (s[14] << 6) | (s[15] >>> 26);
b23 = (s[15] << 6) | (s[14] >>> 26);
b4 = (s[25] << 11) | (s[24] >>> 21);
b5 = (s[24] << 11) | (s[25] >>> 21);
b36 = (s[34] << 15) | (s[35] >>> 17);
b37 = (s[35] << 15) | (s[34] >>> 17);
b18 = (s[45] << 29) | (s[44] >>> 3);
b19 = (s[44] << 29) | (s[45] >>> 3);
b10 = (s[6] << 28) | (s[7] >>> 4);
b11 = (s[7] << 28) | (s[6] >>> 4);
b42 = (s[17] << 23) | (s[16] >>> 9);
b43 = (s[16] << 23) | (s[17] >>> 9);
b24 = (s[26] << 25) | (s[27] >>> 7);
b25 = (s[27] << 25) | (s[26] >>> 7);
b6 = (s[36] << 21) | (s[37] >>> 11);
b7 = (s[37] << 21) | (s[36] >>> 11);
b38 = (s[47] << 24) | (s[46] >>> 8);
b39 = (s[46] << 24) | (s[47] >>> 8);
b30 = (s[8] << 27) | (s[9] >>> 5);
b31 = (s[9] << 27) | (s[8] >>> 5);
b12 = (s[18] << 20) | (s[19] >>> 12);
b13 = (s[19] << 20) | (s[18] >>> 12);
b44 = (s[29] << 7) | (s[28] >>> 25);
b45 = (s[28] << 7) | (s[29] >>> 25);
b26 = (s[38] << 8) | (s[39] >>> 24);
b27 = (s[39] << 8) | (s[38] >>> 24);
b8 = (s[48] << 14) | (s[49] >>> 18);
b9 = (s[49] << 14) | (s[48] >>> 18);
s[0] = b0 ^ (~b2 & b4);
s[1] = b1 ^ (~b3 & b5);
s[10] = b10 ^ (~b12 & b14);
s[11] = b11 ^ (~b13 & b15);
s[20] = b20 ^ (~b22 & b24);
s[21] = b21 ^ (~b23 & b25);
s[30] = b30 ^ (~b32 & b34);
s[31] = b31 ^ (~b33 & b35);
s[40] = b40 ^ (~b42 & b44);
s[41] = b41 ^ (~b43 & b45);
s[2] = b2 ^ (~b4 & b6);
s[3] = b3 ^ (~b5 & b7);
s[12] = b12 ^ (~b14 & b16);
s[13] = b13 ^ (~b15 & b17);
s[22] = b22 ^ (~b24 & b26);
s[23] = b23 ^ (~b25 & b27);
s[32] = b32 ^ (~b34 & b36);
s[33] = b33 ^ (~b35 & b37);
s[42] = b42 ^ (~b44 & b46);
s[43] = b43 ^ (~b45 & b47);
s[4] = b4 ^ (~b6 & b8);
s[5] = b5 ^ (~b7 & b9);
s[14] = b14 ^ (~b16 & b18);
s[15] = b15 ^ (~b17 & b19);
s[24] = b24 ^ (~b26 & b28);
s[25] = b25 ^ (~b27 & b29);
s[34] = b34 ^ (~b36 & b38);
s[35] = b35 ^ (~b37 & b39);
s[44] = b44 ^ (~b46 & b48);
s[45] = b45 ^ (~b47 & b49);
s[6] = b6 ^ (~b8 & b0);
s[7] = b7 ^ (~b9 & b1);
s[16] = b16 ^ (~b18 & b10);
s[17] = b17 ^ (~b19 & b11);
s[26] = b26 ^ (~b28 & b20);
s[27] = b27 ^ (~b29 & b21);
s[36] = b36 ^ (~b38 & b30);
s[37] = b37 ^ (~b39 & b31);
s[46] = b46 ^ (~b48 & b40);
s[47] = b47 ^ (~b49 & b41);
s[8] = b8 ^ (~b0 & b2);
s[9] = b9 ^ (~b1 & b3);
s[18] = b18 ^ (~b10 & b12);
s[19] = b19 ^ (~b11 & b13);
s[28] = b28 ^ (~b20 & b22);
s[29] = b29 ^ (~b21 & b23);
s[38] = b38 ^ (~b30 & b32);
s[39] = b39 ^ (~b31 & b33);
s[48] = b48 ^ (~b40 & b42);
s[49] = b49 ^ (~b41 & b43);
s[0] ^= RC[n];
s[1] ^= RC[n + 1];
}
};
module.exports = methods;
// if (!root.JS_SHA3_TEST && NODE_JS) {
// module.exports = methods;
// } else if (root) {
// for (var key in methods) {
// root[key] = methods[key];
// }
// }
// module.exports = function(input, format, output) {
// var msg = input;
// if (format === 1) {
// msg = input;
// }
// else if (format === 2) {
// msg = h.int32Buffer2Bytes(input);
// }
// else {
// msg = h.string2bytes(input);
// }
// var ctx = {};
// if (output === 1) {
// return h.bytes2Int32Buffer(new Keccak().update(msg).array());
// }
// else if (output === 2) {
// return new Keccak().update(msg).array();
// }
// else {
// return new Keccak().update(msg).hex();
// }
// }