UnknownObject/js-sha3
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Added

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- AMD support.
- support for web worker. #13

Changed
- throw error if input type is incorrect when cSHAKE and KMAC.
- freeze hash after finalize.
This commit is contained in:
Yi-Cyuan Chen
2017-12-01 21:04:32 +08:00
parent c43f9d1d18
commit fb7e6403d9
17 changed files with 2296 additions and 292 deletions
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src/sha3.js
+85 -52
View File
@@ -1,7 +1,7 @@
/**
* [js-sha3]{@link https://github.com/emn178/js-sha3}
*
* @version 0.6.1
* @version 0.7.0
* @author Chen, Yi-Cyuan [emn178@gmail.com]
* @copyright Chen, Yi-Cyuan 2015-2017
* @license MIT
@@ -10,12 +10,21 @@
(function () {
'use strict';
var root = typeof window === 'object' ? window : {};
var ERROR = 'input is invalid type';
var WINDOW = typeof window === 'object';
var root = WINDOW ? window : {};
if (root.JS_SHA3_NO_WINDOW) {
WINDOW = false;
}
var WEB_WORKER = !WINDOW && typeof self === 'object';
var NODE_JS = !root.JS_SHA3_NO_NODE_JS && typeof process === 'object' && process.versions && process.versions.node;
if (NODE_JS) {
root = global;
} else if (WEB_WORKER) {
root = self;
}
var COMMON_JS = !root.JS_SHA3_NO_COMMON_JS && typeof module === 'object' && module.exports;
var AMD = typeof define === 'function' && define.amd;
var ARRAY_BUFFER = !root.JS_SHA3_NO_ARRAY_BUFFER && typeof ArrayBuffer !== 'undefined';
var HEX_CHARS = '0123456789abcdef'.split('');
var SHAKE_PADDING = [31, 7936, 2031616, 520093696];
@@ -24,13 +33,13 @@
var PADDING = [6, 1536, 393216, 100663296];
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];
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 = [224, 256, 384, 512];
var SHAKE_BITS = [128, 256];
var OUTPUT_TYPES = ['hex', 'buffer', 'arrayBuffer', 'array'];
var OUTPUT_TYPES = ['hex', 'buffer', 'arrayBuffer', 'array', 'digest'];
var CSHAKE_BYTEPAD = {
'128': 168,
'256': 136
@@ -42,6 +51,12 @@
};
}
if (ARRAY_BUFFER && (root.JS_SHA3_NO_ARRAY_BUFFER_IS_VIEW || !ArrayBuffer.isView)) {
ArrayBuffer.isView = function (obj) {
return typeof obj === 'object' && obj.buffer && obj.buffer.constructor === ArrayBuffer;
};
}
var createOutputMethod = function (bits, padding, outputType) {
return function (message) {
return new Keccak(bits, padding, bits).update(message)[outputType]();
@@ -125,18 +140,18 @@
};
var algorithms = [
{name: 'keccak', padding: KECCAK_PADDING, bits: BITS, createMethod: createMethod},
{name: 'sha3', padding: PADDING, bits: BITS, createMethod: createMethod},
{name: 'shake', padding: SHAKE_PADDING, bits: SHAKE_BITS, createMethod: createShakeMethod},
{name: 'cshake', padding: CSHAKE_PADDING, bits: SHAKE_BITS, createMethod: createCshakeMethod},
{name: 'kmac', padding: CSHAKE_PADDING, bits: SHAKE_BITS, createMethod: createKmacMethod}
{ name: 'keccak', padding: KECCAK_PADDING, bits: BITS, createMethod: createMethod },
{ name: 'sha3', padding: PADDING, bits: BITS, createMethod: createMethod },
{ name: 'shake', padding: SHAKE_PADDING, bits: SHAKE_BITS, createMethod: createShakeMethod },
{ name: 'cshake', padding: CSHAKE_PADDING, bits: SHAKE_BITS, createMethod: createCshakeMethod },
{ name: 'kmac', padding: CSHAKE_PADDING, bits: SHAKE_BITS, createMethod: createKmacMethod }
];
var methods = {}, methodNames = [];
for (var i = 0; i < algorithms.length; ++i) {
var algorithm = algorithms[i];
var bits = algorithm.bits;
var bits = algorithm.bits;
for (var j = 0; j < bits.length; ++j) {
var methodName = algorithm.name + '_' + bits[j];
methodNames.push(methodName);
@@ -155,6 +170,7 @@
this.padding = padding;
this.outputBits = outputBits;
this.reset = true;
this.finalized = false;
this.block = 0;
this.start = 0;
this.blockCount = (1600 - (bits << 1)) >> 5;
@@ -168,19 +184,27 @@
}
Keccak.prototype.update = function (message) {
var notString = typeof message !== 'string';
if (notString && message.constructor === root.ArrayBuffer) {
message = new Uint8Array(message);
if (this.finalized) {
return;
}
var length = message.length;
if (notString) {
if (typeof length !== 'number' ||
!Array.isArray(message) &&
!(ARRAY_BUFFER && ArrayBuffer.isView(message))) {
throw 'input is invalid type';
var notString, type = typeof message;
if (type !== 'string') {
if (type === 'object') {
if (message === null) {
throw ERROR;
} else if (ARRAY_BUFFER && message.constructor === ArrayBuffer) {
message = new Uint8Array(message);
} else if (!Array.isArray(message)) {
if (!ARRAY_BUFFER || !ArrayBuffer.isView(message)) {
throw ERROR;
}
}
} else {
throw ERROR;
}
notString = true;
}
var blocks = this.blocks, byteCount = this.byteCount,
var blocks = this.blocks, byteCount = this.byteCount, length = message.length,
blockCount = this.blockCount, index = 0, s = this.s, i, code;
while (index < length) {
@@ -253,20 +277,24 @@
};
Keccak.prototype.encodeString = function (str) {
str = str || '';
var notString = typeof str !== 'string';
if (notString && str.constructor === root.ArrayBuffer) {
str = new Uint8Array(str);
}
var length = str.length;
if (notString) {
if (typeof length !== 'number' ||
!Array.isArray(str) &&
!(ARRAY_BUFFER && ArrayBuffer.isView(str))) {
throw 'input is invalid type';
var notString, type = typeof str;
if (type !== 'string') {
if (type === 'object') {
if (str === null) {
throw ERROR;
} else if (ARRAY_BUFFER && str.constructor === ArrayBuffer) {
str = new Uint8Array(str);
} else if (!Array.isArray(str)) {
if (!ARRAY_BUFFER || !ArrayBuffer.isView(str)) {
throw ERROR;
}
}
} else {
throw ERROR;
}
notString = true;
}
var bytes = 0;
var bytes = 0, length = str.length;
if (notString) {
bytes = length;
} else {
@@ -291,7 +319,7 @@
Keccak.prototype.bytepad = function (strs, w) {
var bytes = this.encode(w);
for (var i = 0;i < strs.length;++i) {
for (var i = 0; i < strs.length; ++i) {
bytes += this.encodeString(strs[i]);
}
var paddingBytes = w - bytes % w;
@@ -302,6 +330,10 @@
};
Keccak.prototype.finalize = function () {
if (this.finalized) {
return;
}
this.finalized = true;
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) {
@@ -321,15 +353,15 @@
this.finalize();
var blockCount = this.blockCount, s = this.s, outputBlocks = this.outputBlocks,
extraBytes = this.extraBytes, i = 0, j = 0;
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];
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);
@@ -338,9 +370,7 @@
}
if (extraBytes) {
block = s[i];
if (extraBytes > 0) {
hex += HEX_CHARS[(block >> 4) & 0x0F] + HEX_CHARS[block & 0x0F];
}
hex += HEX_CHARS[(block >> 4) & 0x0F] + HEX_CHARS[block & 0x0F];
if (extraBytes > 1) {
hex += HEX_CHARS[(block >> 12) & 0x0F] + HEX_CHARS[(block >> 8) & 0x0F];
}
@@ -355,7 +385,7 @@
this.finalize();
var blockCount = this.blockCount, s = this.s, outputBlocks = this.outputBlocks,
extraBytes = this.extraBytes, i = 0, j = 0;
extraBytes = this.extraBytes, i = 0, j = 0;
var bytes = this.outputBits >> 3;
var buffer;
if (extraBytes) {
@@ -385,7 +415,7 @@
this.finalize();
var blockCount = this.blockCount, s = this.s, outputBlocks = this.outputBlocks,
extraBytes = this.extraBytes, i = 0, j = 0;
extraBytes = this.extraBytes, i = 0, j = 0;
var array = [], offset, block;
while (j < outputBlocks) {
for (i = 0; i < blockCount && j < outputBlocks; ++i, ++j) {
@@ -403,9 +433,7 @@
if (extraBytes) {
offset = j << 2;
block = s[i];
if (extraBytes > 0) {
array[offset] = block & 0xFF;
}
array[offset] = block & 0xFF;
if (extraBytes > 1) {
array[offset + 1] = (block >> 8) & 0xFF;
}
@@ -429,9 +457,9 @@
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;
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];
@@ -615,8 +643,13 @@
if (COMMON_JS) {
module.exports = methods;
} else {
for (var i = 0; i < methodNames.length; ++i) {
for (i = 0; i < methodNames.length; ++i) {
root[methodNames[i]] = methods[methodNames[i]];
}
if (AMD) {
define(function () {
return methods;
});
}
}
})();