Added

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

Changed
- throw error if input type is incorrect when cSHAKE and KMAC.
- freeze hash after finalize.

.covignore

@@ -1,2 +0,0 @@
-/node_modules/
-/tests/

.gitignore

@@ -1,3 +1,3 @@
 /node_modules/
-/covreporter/
+/coverage/
-/my_test/
+/.nyc_output/

.npmignore

@@ -0,0 +1,7 @@
+/node_modules/
+/coverage/
+/.nyc_output/
+/tests/
+.travis.yml
+.npmignore
+bower.json

.travis.yml

@@ -1,12 +1,10 @@
 language: node_js
 node_js:
-  - "0.12.15"
+  - "6.11.4"
-  - "4.5"
+  - "8.6.0"
-  - "6.5.0"
 before_install:
   - npm install coveralls
-  - npm install mocha-lcov-reporter
+after_success: npm run coveralls
-script: npm run-script coveralls
 branches:
   only:
     - master

CHANGELOG.md

@@ -1,5 +1,14 @@
 # Change Log
 
+## v0.7.0 / 2017-12-01
+### Added
+- AMD support.
+- support for web worker. #13
+
+### Changed
+- throw error if input type is incorrect when cSHAKE and KMAC.
+- freeze hash after finalize.
+
 ## v0.6.1 / 2017-07-03
 ### Fixed
 - Typo on variable kmac_256 type definition. #12

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "js-sha3",
-  "version": "0.6.1",
+  "version": "0.7.0",
   "main": ["src/sha3.js"],
   "ignore": [
     "samples",

package.json

@@ -1,21 +1,20 @@
 {
   "name": "js-sha3",
-  "version": "0.6.1",
+  "version": "0.7.0",
   "description": "A simple SHA-3 / Keccak / Shake hash function for JavaScript supports UTF-8 encoding.",
   "main": "src/sha3.js",
-  "typings": "index",
-  "types": "index.d.ts",
   "devDependencies": {
     "expect.js": "~0.3.1",
-    "jscoverage": "~0.5.9",
+    "mocha": "~2.3.4",
-    "mocha": "~2.3.2",
+    "nyc": "^11.3.0",
-    "uglifyjs": "~2.4.10"
+    "uglify-js": "^3.1.9",
+    "webworker-threads": "^0.7.13"
   },
   "scripts": {
-    "test": "mocha tests/node-test.js -r jscoverage",
+    "test": "nyc mocha tests/node-test.js",
-    "report": "mocha tests/node-test.js -r jscoverage --covout=html",
+    "report": "nyc --reporter=html --reporter=text mocha tests/node-test.js",
-    "coveralls": "mocha tests/node-test.js -R mocha-lcov-reporter -r jscoverage | coveralls",
+    "coveralls": "nyc report --reporter=text-lcov | coveralls",
-    "build": "uglifyjs src/sha3.js --compress --mangle --comments --output build/sha3.min.js"
+    "build": "uglifyjs src/sha3.js -c -m --comments --output build/sha3.min.js"
   },
   "repository": {
     "type": "git",
@@ -37,5 +36,10 @@
   "homepage": "https://github.com/emn178/js-sha3",
   "bugs": {
     "url": "https://github.com/emn178/js-sha3/issues"
+  },
+  "nyc": {
+    "exclude": [
+      "tests"
+    ]
   }
 }

src/sha3.js

@@ -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,
+    0, 2147516545, 2147483648, 32777, 2147483648, 138, 0, 136, 0, 2147516425, 0,
-            2147483658, 0, 2147516555, 0, 139, 2147483648, 32905, 2147483648, 32771,
+    2147483658, 0, 2147516555, 0, 139, 2147483648, 32905, 2147483648, 32771,
-            2147483648, 32770, 2147483648, 128, 2147483648, 32778, 0, 2147483658, 2147483648,
+    2147483648, 32770, 2147483648, 128, 2147483648, 32778, 0, 2147483658, 2147483648,
-            2147516545, 2147483648, 32896, 2147483648, 2147483649, 0, 2147516424, 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: 'keccak', padding: KECCAK_PADDING, bits: BITS, createMethod: createMethod },
-    {name: 'sha3', padding: PADDING, bits: BITS, createMethod: createMethod},
+    { name: 'sha3', padding: PADDING, bits: BITS, createMethod: createMethod },
-    {name: 'shake', padding: SHAKE_PADDING, bits: SHAKE_BITS, createMethod: createShakeMethod},
+    { name: 'shake', padding: SHAKE_PADDING, bits: SHAKE_BITS, createMethod: createShakeMethod },
-    {name: 'cshake', padding: CSHAKE_PADDING, bits: SHAKE_BITS, createMethod: createCshakeMethod},
+    { name: 'cshake', padding: CSHAKE_PADDING, bits: SHAKE_BITS, createMethod: createCshakeMethod },
-    {name: 'kmac', padding: CSHAKE_PADDING, bits: SHAKE_BITS, createMethod: createKmacMethod}
+    { 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 (this.finalized) {
-    if (notString && message.constructor === root.ArrayBuffer) {
+      return;
-      message = new Uint8Array(message);
     }
-    var length = message.length;
+    var notString, type = typeof message;
-    if (notString) {
+    if (type !== 'string') {
-      if (typeof length !== 'number' ||
+      if (type === 'object') {
-        !Array.isArray(message) && 
+        if (message === null) {
-        !(ARRAY_BUFFER && ArrayBuffer.isView(message))) {
+          throw ERROR;
-        throw 'input is invalid type';
+        } 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, type = typeof str;
-    var notString = typeof str !== 'string';
+    if (type !== 'string') {
-    if (notString && str.constructor === root.ArrayBuffer) {
+      if (type === 'object') {
-      str = new Uint8Array(str);
+        if (str === null) {
-    }
+          throw ERROR;
-    var length = str.length;
+        } else if (ARRAY_BUFFER && str.constructor === ArrayBuffer) {
-    if (notString) {
+          str = new Uint8Array(str);
-      if (typeof length !== 'number' ||
+        } else if (!Array.isArray(str)) {
-        !Array.isArray(str) && 
+          if (!ARRAY_BUFFER || !ArrayBuffer.isView(str)) {
-        !(ARRAY_BUFFER && ArrayBuffer.isView(str))) {
+            throw ERROR;
-        throw 'input is invalid type';
+          }
+        }
+      } 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 >> 12) & 0x0F] + HEX_CHARS[(block >> 8) & 0x0F] +
-               HEX_CHARS[(block >> 20) & 0x0F] + HEX_CHARS[(block >> 16) & 0x0F] +
+          HEX_CHARS[(block >> 20) & 0x0F] + HEX_CHARS[(block >> 16) & 0x0F] +
-               HEX_CHARS[(block >> 28) & 0x0F] + HEX_CHARS[(block >> 24) & 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,
+      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,
+      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;
+      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;
+      });
+    }
   }
 })();

tests/node-test.js

@@ -1,80 +1,150 @@
 expect = require('expect.js');
+Worker = require('webworker-threads').Worker;
+
+function unset() {
+  delete require.cache[require.resolve('../src/sha3.js')];
+  delete require.cache[require.resolve('./test.js')];
+  sha3_512 = null;
+  sha3_384 = null;
+  sha3_256 = null;
+  sha3_224 = null;
+  keccak512 = null;
+  keccak384 = null;
+  keccak256 = null;
+  keccak224 = null;
+  shake128 = null;
+  shake256 = null;
+  kmac128 = null;
+  kmac256 = null;
+  BUFFER = undefined;
+  JS_SHA3_NO_WINDOW = undefined;
+  JS_SHA3_NO_NODE_JS = undefined;
+  JS_SHA3_NO_COMMON_JS = undefined;
+  JS_SHA3_NO_ARRAY_BUFFER = undefined;
+  JS_SHA3_NO_ARRAY_BUFFER_IS_VIEW = undefined;
+  window = undefined;
+}
+
+function requireToGlobal() {
+  var sha3 = require('../src/sha3.js');
+  keccak512 = sha3.keccak512;
+  keccak384 = sha3.keccak384;
+  keccak256 = sha3.keccak256;
+  keccak224 = sha3.keccak224;
+  sha3_512 = sha3.sha3_512;
+  sha3_384 = sha3.sha3_384;
+  sha3_256 = sha3.sha3_256;
+  sha3_224 = sha3.sha3_224;
+  shake128 = sha3.shake128;
+  shake256 = sha3.shake256;
+  cshake128 = sha3.cshake128;
+  cshake256 = sha3.cshake256;
+  kmac128 = sha3.kmac128;
+  kmac256 = sha3.kmac256;
+}
+
+function runCommonJsTest() {
+  requireToGlobal();
+  require('./test.js');
+  unset();
+}
+
+function runWindowTest(extra) {
+  window = global;
+  require('../src/sha3.js');
+  require('./test.js');
+  if (extra) {
+    require('./test-shake.js');
+    require('./test-cshake.js');
+    require('./test-kmac.js');
+  }
+  unset();
+}
 
 // Node.js env
-var sha3 = require('../src/sha3.js');
+BUFFER = true;
-keccak512 = sha3.keccak512;
+runCommonJsTest();
-keccak384 = sha3.keccak384;
-keccak256 = sha3.keccak256;
-keccak224 = sha3.keccak224;
-sha3_512 = sha3.sha3_512;
-sha3_384 = sha3.sha3_384;
-sha3_256 = sha3.sha3_256;
-sha3_224 = sha3.sha3_224;
-shake128 = sha3.shake128;
-shake256 = sha3.shake256;
-cshake128 = sha3.cshake128;
-cshake256 = sha3.cshake256;
-kmac128 = sha3.kmac128;
-kmac256 = sha3.kmac256;
-require('./test.js');
-require('./test-shake.js');
-require('./test-cshake.js');
-require('./test-kmac.js');
-
-delete require.cache[require.resolve('../src/sha3.js')];
-delete require.cache[require.resolve('./test.js')];
-delete require.cache[require.resolve('./test-shake.js')];
-delete require.cache[require.resolve('./test-cshake.js')];
-delete require.cache[require.resolve('./test-kmac.js')];
 
 // Webpack browser env
 JS_SHA3_NO_NODE_JS = true;
 window = global;
-expect = require('expect.js');
+runCommonJsTest();
-var sha3 = require('../src/sha3.js');
-keccak512 = sha3.keccak512;
-keccak384 = sha3.keccak384;
-keccak256 = sha3.keccak256;
-keccak224 = sha3.keccak224;
-sha3_512 = sha3.sha3_512;
-sha3_384 = sha3.sha3_384;
-sha3_256 = sha3.sha3_256;
-sha3_224 = sha3.sha3_224;
-shake128 = sha3.shake128;
-shake256 = sha3.shake256;
-cshake128 = sha3.cshake128;
-cshake256 = sha3.cshake256;
-kmac128 = sha3.kmac128;
-kmac256 = sha3.kmac256;
-require('./test.js');
-require('./test-shake.js');
-require('./test-cshake.js');
-require('./test-kmac.js');
-
-delete require.cache[require.resolve('../src/sha3.js')];
-delete require.cache[require.resolve('./test.js')];
-delete require.cache[require.resolve('./test-shake.js')];
-delete require.cache[require.resolve('./test-cshake.js')];
-delete require.cache[require.resolve('./test-kmac.js')];
-sha3_512 = null;
-sha3_384 = null;
-sha3_256 = null;
-sha3_224 = null;
-keccak512 = null;
-keccak384 = null;
-keccak256 = null;
-keccak224 = null;
-shake128 = null;
-shake256 = null;
-kmac128 = null;
-kmac256 = null;
 
 // browser env
 JS_SHA3_NO_NODE_JS = true;
 JS_SHA3_NO_COMMON_JS = true;
+runWindowTest(true);
+
+// browser env and no array buffer
+JS_SHA3_NO_NODE_JS = true;
+JS_SHA3_NO_COMMON_JS = true;
+JS_SHA3_NO_ARRAY_BUFFER = true;
+runWindowTest();
+
+// browser env and no isView
+JS_SHA3_NO_NODE_JS = true;
+JS_SHA3_NO_COMMON_JS = true;
+JS_SHA3_NO_ARRAY_BUFFER_IS_VIEW = true;
+runWindowTest();
+
+// browser AMD
+JS_SHA3_NO_NODE_JS = true;
+JS_SHA3_NO_COMMON_JS = true;
+JS_SHA3_NO_ARRAY_BUFFER_IS_VIEW = false;
 window = global;
+define = function (func) {
+  sha3 = func();
+  keccak512 = sha3.keccak512;
+  keccak384 = sha3.keccak384;
+  keccak256 = sha3.keccak256;
+  keccak224 = sha3.keccak224;
+  sha3_512 = sha3.sha3_512;
+  sha3_384 = sha3.sha3_384;
+  sha3_256 = sha3.sha3_256;
+  sha3_224 = sha3.sha3_224;
+  shake128 = sha3.shake128;
+  shake256 = sha3.shake256;
+  cshake128 = sha3.cshake128;
+  cshake256 = sha3.cshake256;
+  kmac128 = sha3.kmac128;
+  kmac256 = sha3.kmac256;
+  require('./test.js');
+};
+define.amd = true;
+
 require('../src/sha3.js');
-require('./test.js');
+unset();
-require('./test-shake.js');
+
-require('./test-cshake.js');
+// webworker
-require('./test-kmac.js');
+WORKER = 'tests/worker.js';
+SOURCE = 'src/sha3.js';
+
+require('./worker-test.js');
+
+delete require.cache[require.resolve('./worker-test.js')];
+
+// cover webworker
+JS_SHA3_NO_WINDOW = true;
+JS_SHA3_NO_NODE_JS = true;
+WORKER = './worker.js';
+SOURCE = '../src/sha3.js';
+window = global;
+self = global;
+
+Worker = function (file) {
+  require(file);
+  currentWorker = this;
+
+  this.postMessage = function (data) {
+    onmessage({data: data});
+  };
+}
+
+postMessage = function (data) {
+  currentWorker.onmessage({data: data});
+}
+
+importScripts = function () {};
+
+requireToGlobal();
+require('./worker-test.js');

tests/test-cshake.js

@@ -64,6 +64,6 @@
           expect(testCase.method(c.input, c.bits, c.n, c.s)).to.be(c.output);
         });
       });
-    });    
+    });
   });
 })(cshake256, cshake128);

tests/test-shake.js

@@ -27,6 +27,7 @@
       it('should be equal', function () {
         expect(shake128('', 16)).to.be('7f9c');
         expect(shake128('', 24)).to.be('7f9c2b');
+        expect(shake128.array('', 8)).to.eql([0x7f]);
         expect(shake128.array('', 16)).to.eql([0x7f, 0x9c]);
         expect(shake128.array('', 24)).to.eql([0x7f, 0x9c, 0x2b]);
       });

tests/test.js

@@ -9,63 +9,6 @@
     return hex;
   };
 
-  function runTestCases(methods, testCases) {
-    methods.forEach(function (method) {
-      describe('#' + method.name, function () {
-        var methodTestCases = testCases[method.name];
-        for (var testCaseName in methodTestCases) {
-          (function (testCaseName) {
-            var testCase = methodTestCases[testCaseName];
-            context('when ' + testCaseName, function () {
-              for (var hash in testCase) {
-                (function (message, hash) {
-                  it('should be equal', function () {
-                    expect(method.call(message)).to.be(hash);
-                  });
-                })(testCase[hash], hash);
-              }
-            });
-          })(testCaseName);
-        }
-      });
-    });
-  }
-
-  var methods = [
-    {
-      name: 'sha3_512',
-      call: sha3_512
-    },
-    {
-      name: 'sha3_384',
-      call: sha3_384
-    },
-    {
-      name: 'sha3_256',
-      call: sha3_256
-    },
-    {
-      name: 'sha3_224',
-      call: sha3_224
-    },
-    {
-      name: 'keccak512',
-      call: keccak512
-    },
-    {
-      name: 'keccak384',
-      call: keccak384
-    },
-    {
-      name: 'keccak256',
-      call: keccak256
-    },
-    {
-      name: 'keccak224',
-      call: keccak224
-    }
-  ];
-
   var testCases = {
     sha3_512: {
       'ascii': {
@@ -92,14 +35,6 @@
       'Array': {
         'a69f73cca23a9ac5c8b567dc185a756e97c982164fe25859e0d1dcc1475c80a615b2123af1f5f94c11e3e9402c3ac558f500199d95b6d3e301758586281dcd26': [],
         '01dedd5de4ef14642445ba5f5b97c15e47b9ad931326e4b0727cd94cefc44fff23f07bf543139939b49128caf436dc1bdee54fcb24023a08d9403f9b4bf0d450': [84, 104, 101, 32, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110, 32, 102, 111, 120, 32, 106, 117, 109, 112, 115, 32, 111, 118, 101, 114, 32, 116, 104, 101, 32, 108, 97, 122, 121, 32, 100, 111, 103]
-      },
-      'Uint8Array': {
-        'a69f73cca23a9ac5c8b567dc185a756e97c982164fe25859e0d1dcc1475c80a615b2123af1f5f94c11e3e9402c3ac558f500199d95b6d3e301758586281dcd26': new Uint8Array([]),
-        '01dedd5de4ef14642445ba5f5b97c15e47b9ad931326e4b0727cd94cefc44fff23f07bf543139939b49128caf436dc1bdee54fcb24023a08d9403f9b4bf0d450': new Uint8Array([84, 104, 101, 32, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110, 32, 102, 111, 120, 32, 106, 117, 109, 112, 115, 32, 111, 118, 101, 114, 32, 116, 104, 101, 32, 108, 97, 122, 121, 32, 100, 111, 103])
-      },
-      'ArrayBuffer': {
-        'a69f73cca23a9ac5c8b567dc185a756e97c982164fe25859e0d1dcc1475c80a615b2123af1f5f94c11e3e9402c3ac558f500199d95b6d3e301758586281dcd26': new ArrayBuffer(0),
-        '01dedd5de4ef14642445ba5f5b97c15e47b9ad931326e4b0727cd94cefc44fff23f07bf543139939b49128caf436dc1bdee54fcb24023a08d9403f9b4bf0d450': new Uint8Array([84, 104, 101, 32, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110, 32, 102, 111, 120, 32, 106, 117, 109, 112, 115, 32, 111, 118, 101, 114, 32, 116, 104, 101, 32, 108, 97, 122, 121, 32, 100, 111, 103]).buffer
       }
     },
     sha3_384: {
@@ -237,104 +172,192 @@
     }
   };
 
-  runTestCases(methods, testCases);
+  if (!(typeof JS_SHA3_NO_ARRAY_BUFFER === 'boolean' && JS_SHA3_NO_ARRAY_BUFFER)) {
+    testCases.sha3_512.Uint8Array = {
+      'a69f73cca23a9ac5c8b567dc185a756e97c982164fe25859e0d1dcc1475c80a615b2123af1f5f94c11e3e9402c3ac558f500199d95b6d3e301758586281dcd26': new Uint8Array([]),
+      '01dedd5de4ef14642445ba5f5b97c15e47b9ad931326e4b0727cd94cefc44fff23f07bf543139939b49128caf436dc1bdee54fcb24023a08d9403f9b4bf0d450': new Uint8Array([84, 104, 101, 32, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110, 32, 102, 111, 120, 32, 106, 117, 109, 112, 115, 32, 111, 118, 101, 114, 32, 116, 104, 101, 32, 108, 97, 122, 121, 32, 100, 111, 103])
+    };
+    testCases.sha3_512.ArrayBuffer = {
+      'a69f73cca23a9ac5c8b567dc185a756e97c982164fe25859e0d1dcc1475c80a615b2123af1f5f94c11e3e9402c3ac558f500199d95b6d3e301758586281dcd26': new ArrayBuffer(0),
+      '01dedd5de4ef14642445ba5f5b97c15e47b9ad931326e4b0727cd94cefc44fff23f07bf543139939b49128caf436dc1bdee54fcb24023a08d9403f9b4bf0d450': new Uint8Array([84, 104, 101, 32, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110, 32, 102, 111, 120, 32, 106, 117, 109, 112, 115, 32, 111, 118, 101, 114, 32, 116, 104, 101, 32, 108, 97, 122, 121, 32, 100, 111, 103]).buffer
+    };
+  }
 
-  describe('sha3_512', function () {
+  if (typeof BUFFER === 'boolean' && BUFFER) {
-    context('#arrayBuffer', function () {
+    testCases.sha3_512.Buffer = {
-      it('should be equal', function () {
+      'a69f73cca23a9ac5c8b567dc185a756e97c982164fe25859e0d1dcc1475c80a615b2123af1f5f94c11e3e9402c3ac558f500199d95b6d3e301758586281dcd26': new Buffer(0),
-        expect(sha3_512.arrayBuffer('').toHexString()).to.be('a69f73cca23a9ac5c8b567dc185a756e97c982164fe25859e0d1dcc1475c80a615b2123af1f5f94c11e3e9402c3ac558f500199d95b6d3e301758586281dcd26');
+      '01dedd5de4ef14642445ba5f5b97c15e47b9ad931326e4b0727cd94cefc44fff23f07bf543139939b49128caf436dc1bdee54fcb24023a08d9403f9b4bf0d450': new Buffer(new Uint8Array([84, 104, 101, 32, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110, 32, 102, 111, 120, 32, 106, 117, 109, 112, 115, 32, 111, 118, 101, 114, 32, 116, 104, 101, 32, 108, 97, 122, 121, 32, 100, 111, 103]))
-        expect(sha3_512.buffer('').toHexString()).to.be('a69f73cca23a9ac5c8b567dc185a756e97c982164fe25859e0d1dcc1475c80a615b2123af1f5f94c11e3e9402c3ac558f500199d95b6d3e301758586281dcd26');
+    };
-      });
+  }
-    });
 
-    context('#hex', function () {
+  var errorTestCases = [null, undefined, { length: 0 }, 0, 1, false, true, NaN, Infinity, function () {}];
-      it('should be equal', function () {
-        expect(sha3_512.hex('')).to.be('a69f73cca23a9ac5c8b567dc185a756e97c982164fe25859e0d1dcc1475c80a615b2123af1f5f94c11e3e9402c3ac558f500199d95b6d3e301758586281dcd26');
-      });
-    });
 
-    context('#update', function () {
+  function runTestCases(name, algorithm) {
-      it('should be equal', function () {
+    var methods = [
-        expect(sha3_512.update('').hex()).to.be('a69f73cca23a9ac5c8b567dc185a756e97c982164fe25859e0d1dcc1475c80a615b2123af1f5f94c11e3e9402c3ac558f500199d95b6d3e301758586281dcd26');
+      {
-        expect(sha3_512.update('The quick brown fox ').update('jumps over the lazy dog').hex()).to.be('01dedd5de4ef14642445ba5f5b97c15e47b9ad931326e4b0727cd94cefc44fff23f07bf543139939b49128caf436dc1bdee54fcb24023a08d9403f9b4bf0d450');
+        name: name,
-      });
+        call: algorithm,
-    });
+      },
-
+      {
-    context('#create', function () {
+        name: name + '.hex',
-      it('should be equal', function () {
+        call: algorithm.hex
-        var bytes = [84, 104, 101, 32, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110, 32, 102, 111, 120, 32, 106, 117, 109, 112, 115, 32, 111, 118, 101, 114, 32, 116, 104, 101, 32, 108, 97, 122, 121, 32, 100, 111, 103];
+      },
-        var hash = sha3_512.create();
+      {
-        for (var i = 0; i < bytes.length; ++i) {
+        name: name + '.array',
-          hash.update([bytes[i]]);
+        call: function (message) {
+          return algorithm.array(message).toHexString();
         }
-        expect(hash.hex()).to.be('01dedd5de4ef14642445ba5f5b97c15e47b9ad931326e4b0727cd94cefc44fff23f07bf543139939b49128caf436dc1bdee54fcb24023a08d9403f9b4bf0d450');
+      },
+      {
+        name: name + '.digest',
+        call: function (message) {
+          return algorithm.digest(message).toHexString();
+        }
+      },
+      {
+        name: name + '.arrayBuffer',
+        call: function (message) {
+          return algorithm.arrayBuffer(message).toHexString();
+        }
+      }
+    ];
+
+    var classMethods = [
+      {
+        name: 'create',
+        call: function (message) {
+          return algorithm.create().update(message).toString();
+        }
+      },
+      {
+        name: 'update',
+        call: function (message) {
+          return algorithm.update(message).toString();
+        }
+      },
+      {
+        name: 'hex',
+        call: function (message) {
+          return algorithm.update(message).hex();
+        }
+      },
+      {
+        name: 'array',
+        call: function (message) {
+          return algorithm.update(message).array().toHexString();
+        }
+      },
+      {
+        name: 'digest',
+        call: function (message) {
+          return algorithm.update(message).digest().toHexString();
+        }
+      },
+      {
+        name: 'arrayBuffer',
+        call: function (message) {
+          return algorithm.update(message).arrayBuffer().toHexString();
+        }
+      },
+      {
+        name: 'finalize',
+        call: function (message) {
+          var hash = algorithm.update(message);
+          hash.hex();
+          hash.update(message);
+          return hash.hex();
+        }
+      }
+    ];
+
+    var subTestCases = testCases[name];
+
+    describe(name, function () {
+      methods.forEach(function (method) {
+        describe('#' + method.name, function () {
+          for (var testCaseName in subTestCases) {
+            (function (testCaseName) {
+              var testCase = subTestCases[testCaseName];
+              context('when ' + testCaseName, function () {
+                for (var hash in testCase) {
+                  (function (message, hash) {
+                    it('should be equal', function () {
+                      expect(method.call(message)).to.be(hash);
+                    });
+                  })(testCase[hash], hash);
+                }
+              });
+            })(testCaseName);
+          }
+        });
+      });
+
+      classMethods.forEach(function (method) {
+        describe('#' + method.name, function () {
+          for (var testCaseName in subTestCases) {
+            (function (testCaseName) {
+              var testCase = subTestCases[testCaseName];
+              context('when ' + testCaseName, function () {
+                for (var hash in testCase) {
+                  (function (message, hash) {
+                    it('should be equal', function () {
+                      expect(method.call(message)).to.be(hash);
+                    });
+                  })(testCase[hash], hash);
+                }
+              });
+            })(testCaseName);
+          }
+        });
+      });
+
+      describe('#' + name, function () {
+        errorTestCases.forEach(function (testCase) {
+          context('when ' + testCase, function () {
+            it('should throw error', function () {
+              expect(function () {
+                algorithm(testCase);
+              }).to.throwError(/input is invalid type/);
+            });
+          });
+        });
       });
     });
-  });
+  }
+
+  runTestCases('sha3_512', sha3_512);
+  runTestCases('sha3_384', sha3_384);
+  runTestCases('sha3_256', sha3_256);
+  runTestCases('sha3_224', sha3_224);
+  runTestCases('keccak512', keccak512);
+  runTestCases('keccak384', keccak384);
+  runTestCases('keccak256', keccak256);
+  runTestCases('keccak224', keccak224);
 
   describe('#keccak512', function () {
-    context('when special length', function () {
-      it('should be equal', function () {
-        expect(keccak512('012345678901234567890123456789012345678901234567890123456789012345678901')).to.be('90b1d032c3bf06dcc78a46fe52054bab1250600224bfc6dfbfb40a7877c55e89bb982799a2edf198568a4166f6736678b45e76b12fac813cfdf0a76714e5eae8');
-        expect(keccak512('01234567890123456789012345678901234567890123456789012345678901234567890')).to.be('3173e7abc754a0b2909410d78986428a9183e996864af02f421d273d9fa1b4e4a5b14e2998b20767712f53a01ff8f6ae2c3e71e51e2c0f24257b03e6da09eb77');
-      });
-    });
-
-    context('when Array', function () {
-      it('should be equal', function () {
-        expect(keccak512([])).to.be('0eab42de4c3ceb9235fc91acffe746b29c29a8c366b7c60e4e67c466f36a4304c00fa9caf9d87976ba469bcbe06713b435f091ef2769fb160cdab33d3670680e');
-        expect(keccak512([84, 104, 101, 32, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110, 32, 102, 111, 120, 32, 106, 117, 109, 112, 115, 32, 111, 118, 101, 114, 32, 116, 104, 101, 32, 108, 97, 122, 121, 32, 100, 111, 103])).to.be('d135bb84d0439dbac432247ee573a23ea7d3c9deb2a968eb31d47c4fb45f1ef4422d6c531b5b9bd6f449ebcc449ea94d0a8f05f62130fda612da53c79659f609');
-      });
-    });
-
-    context('when Uint8Array', function () {
-      it('should be equal', function () {
-        expect(keccak512(new Uint8Array([]))).to.be('0eab42de4c3ceb9235fc91acffe746b29c29a8c366b7c60e4e67c466f36a4304c00fa9caf9d87976ba469bcbe06713b435f091ef2769fb160cdab33d3670680e');
-        expect(keccak512(new Uint8Array([84, 104, 101, 32, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110, 32, 102, 111, 120, 32, 106, 117, 109, 112, 115, 32, 111, 118, 101, 114, 32, 116, 104, 101, 32, 108, 97, 122, 121, 32, 100, 111, 103]))).to.be('d135bb84d0439dbac432247ee573a23ea7d3c9deb2a968eb31d47c4fb45f1ef4422d6c531b5b9bd6f449ebcc449ea94d0a8f05f62130fda612da53c79659f609');
-      });
-    });
-
-    context('when ArrayBuffer', function () {
-      it('should be equal', function () {
-        expect(keccak512(new ArrayBuffer(0))).to.be('0eab42de4c3ceb9235fc91acffe746b29c29a8c366b7c60e4e67c466f36a4304c00fa9caf9d87976ba469bcbe06713b435f091ef2769fb160cdab33d3670680e');
-      });
-    });
-
-    context('when output ArrayBuffer', function () {
-      it('should be equal', function () {
-        expect(keccak512.arrayBuffer('').toHexString()).to.be('0eab42de4c3ceb9235fc91acffe746b29c29a8c366b7c60e4e67c466f36a4304c00fa9caf9d87976ba469bcbe06713b435f091ef2769fb160cdab33d3670680e');
-        expect(keccak512.buffer('').toHexString()).to.be('0eab42de4c3ceb9235fc91acffe746b29c29a8c366b7c60e4e67c466f36a4304c00fa9caf9d87976ba469bcbe06713b435f091ef2769fb160cdab33d3670680e');
-      });
-    });
-
-    context('when output Array', function () {
-      it('should be equal', function () {
-        expect(keccak512.array('').toHexString()).to.be('0eab42de4c3ceb9235fc91acffe746b29c29a8c366b7c60e4e67c466f36a4304c00fa9caf9d87976ba469bcbe06713b435f091ef2769fb160cdab33d3670680e');
-      });
-    });
-
-    context('when incorrect input', function () {
-      it('should throw error', function () {
-        expect(function () {
-          keccak512(1);
-        }).to.throwError();
-      });
-    });
-
     context('#encodeString', function () {
-      context('when incorrect input', function () {
+      errorTestCases.forEach(function (testCase) {
-        it('should throw error', function () {
+        context('when ' + testCase, function () {
-          expect(function () {
+          it('should throw error', function () {
-            keccak512.create().encodeString(1);
+            expect(function () {
-          }).to.throwError();
+              keccak512.create().encodeString(testCase);
+            }).to.throwError(/input is invalid type/);
+          });
         });
       });
 
-      context('when ArrayBuffer', function () {
+      if (!(typeof JS_SHA3_NO_ARRAY_BUFFER === 'boolean' && JS_SHA3_NO_ARRAY_BUFFER)) {
-        it('should throw error', function () {
+        context('when ArrayBuffer', function () {
-          expect(keccak512.create().encodeString(new ArrayBuffer(0))).to.be(2);
+          it('should throw error', function () {
+            expect(keccak512.create().encodeString(new ArrayBuffer(0))).to.be(2);
+          });
         });
-      });
+        context('when Uint8Array', function () {
+          it('should throw error', function () {
+            expect(keccak512.create().encodeString(new Uint8Array(0))).to.be(2);
+          });
+        });
+      }
 
       context('when UTF-8', function () {
         it('should throw error', function () {

tests/worker-test.js

@@ -0,0 +1,21 @@
+(function (Worker, WORKER, SOURCE) {
+  var cases = {
+    'a69f73cca23a9ac5c8b567dc185a756e97c982164fe25859e0d1dcc1475c80a615b2123af1f5f94c11e3e9402c3ac558f500199d95b6d3e301758586281dcd26': '',
+    '01dedd5de4ef14642445ba5f5b97c15e47b9ad931326e4b0727cd94cefc44fff23f07bf543139939b49128caf436dc1bdee54fcb24023a08d9403f9b4bf0d450': 'The quick brown fox jumps over the lazy dog',
+    '18f4f4bd419603f95538837003d9d254c26c23765565162247483f65c50303597bc9ce4d289f21d1c2f1f458828e33dc442100331b35e7eb031b5d38ba6460f8': 'The quick brown fox jumps over the lazy dog.'
+  };
+
+  describe('#sha3_512', function () {
+    Object.keys(cases).forEach(function (hash) {
+      it('should be equal', function (done) {
+        var worker = new Worker(WORKER);
+        worker.onmessage = function(event) {
+          expect(event.data).to.be(hash);
+          done();
+        };
+        worker.postMessage(SOURCE);
+        worker.postMessage(cases[hash]);
+      });
+    });
+  });
+})(Worker, WORKER, SOURCE);

tests/worker.html

@@ -0,0 +1,26 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <title>SHA3</title>
+  <link rel="stylesheet" href="../node_modules/mocha/mocha.css">
+  <script src="../node_modules/mocha/mocha.js"></script>
+  <script src="../node_modules/expect.js/index.js"></script>
+  <script src="../src/sha3.js"></script>
+</head>
+<body>
+  <div id="mocha"></div>
+  <script>
+    WORKER = 'worker.js';
+    SOURCE = '../src/sha3.js';
+    mocha.setup('bdd');
+  </script>
+  <script src="worker-test.js"></script>
+  <script>
+    mocha.checkLeaks();
+    mocha.run();
+  </script>
+  <script>
+  </script>
+</body>
+</html>

tests/worker.js

@@ -0,0 +1,12 @@
+var imported = false;
+onmessage = function(e) {
+  if (imported) {
+    postMessage(sha3_512(e.data));
+    if (typeof exports !== 'undefined') {
+      imported = false;
+    }
+  } else {
+    imported = true;
+    importScripts(e.data);
+  }
+}