1. Added HMAC feature.

2. Changed throw error if input type is incorrect.

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Change Log
 
+## v0.6.0 / 2017-07-11
+### Added
+- HMAC feature.
+
+### Changed
+- throw error if input type is incorrect.
+
 ## v0.5.0 / 2017-01-24
 ### Added
 - Streaming support #6

README.md

@@ -35,6 +35,18 @@ hash.hex();
 var hash2 = sha256.update('Message to hash');
 hash2.update('Message2 to hash');
 hash2.array();
+
+// HMAC
+sha256.hmac('key', 'Message to hash');
+sha224.hmac('key', 'Message to hash');
+
+var hash = sha256.hmac.create('key');
+hash.update('Message to hash');
+hash.hex();
+
+var hash2 = sha256.hmac.update('key', 'Message to hash');
+hash2.update('Message2 to hash');
+hash2.array();
 ```
 If you use node.js, you should require the module first:
 ```JavaScript

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "js-sha256",
-  "version": "0.5.0",
+  "version": "0.6.0",
   "main": ["src/sha256.js"],
   "ignore": [
     "samples",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "js-sha256",
-  "version": "0.5.0",
+  "version": "0.6.0",
   "description": "A simple SHA-256 / SHA-224 hash function for JavaScript supports UTF-8 encoding.",
   "main": "src/sha256.js",
   "devDependencies": {

src/sha256.js

@@ -1,7 +1,7 @@
 /**
  * [js-sha256]{@link https://github.com/emn178/js-sha256}
  *
- * @version 0.5.0
+ * @version 0.6.0
  * @author Chen, Yi-Cyuan [emn178@gmail.com]
  * @copyright Chen, Yi-Cyuan 2014-2017
  * @license MIT
@@ -10,8 +10,9 @@
 (function () {
   'use strict';
 
+  var ERROR = 'input is invalid type';
   var root = typeof window === 'object' ? window : {};
-  var NODE_JS = !root.JS_SHA256_NO_NODE_JS && typeof process == 'object' && process.versions && process.versions.node;
+  var NODE_JS = !root.JS_SHA256_NO_NODE_JS && typeof process === 'object' && process.versions && process.versions.node;
   if (NODE_JS) {
     root = global;
   }
@@ -35,6 +36,12 @@
 
   var blocks = [];
 
+  if (root.JS_SHA256_NO_NODE_JS || !Array.isArray) {
+    Array.isArray = function (obj) {
+      return Object.prototype.toString.call(obj) === '[object Array]';
+    };
+  }
+
   var createOutputMethod = function (outputType, is224) {
     return function (message) {
       return new Sha256(is224, true).update(message)[outputType]();
@@ -66,16 +73,44 @@
     var nodeMethod = function (message) {
       if (typeof message === 'string') {
         return crypto.createHash(algorithm).update(message, 'utf8').digest('hex');
-      } else if (ARRAY_BUFFER && message instanceof ArrayBuffer) {
-        message = new Uint8Array(message);
-      } else if (message.length === undefined) {
+      } else {
+        if (message === null || message === undefined) {
+          throw ERROR;
+        } else if (message.constructor === ArrayBuffer) {
+          message = new Uint8Array(message);
+        }
+      }
+      if (Array.isArray(message) || ArrayBuffer.isView(message) ||
+        message.constructor === Buffer) {
+        return crypto.createHash(algorithm).update(new Buffer(message)).digest('hex');
+      } else {
         return method(message);
       }
-      return crypto.createHash(algorithm).update(new Buffer(message)).digest('hex');
     };
     return nodeMethod;
   };
 
+  var createHmacOutputMethod = function (outputType, is224) {
+    return function (key, message) {
+      return new HmacSha256(key, is224, true).update(message)[outputType]();
+    };
+  };
+
+  var createHmacMethod = function (is224) {
+    var method = createHmacOutputMethod('hex', is224);
+    method.create = function (key) {
+      return new HmacSha256(key, is224);
+    };
+    method.update = function (key, message) {
+      return method.create(key).update(message);
+    };
+    for (var i = 0; i < OUTPUT_TYPES.length; ++i) {
+      var type = OUTPUT_TYPES[i];
+      method[type] = createHmacOutputMethod(type, is224);
+    }
+    return method;
+  };
+
   function Sha256(is224, sharedMemory) {
     if (sharedMemory) {
       blocks[0] = blocks[16] = blocks[1] = blocks[2] = blocks[3] =
@@ -117,11 +152,23 @@
     if (this.finalized) {
       return;
     }
-    var notString = typeof(message) !== 'string';
-    if (notString && ARRAY_BUFFER && message instanceof root.ArrayBuffer) {
-      message = new Uint8Array(message);
+    var notString = typeof message !== 'string';
+    if (notString) {
+      if (message === null || message === undefined) {
+        throw ERROR;
+      } else if (message.constructor === root.ArrayBuffer) {
+        message = new Uint8Array(message);
+      }
+    }
+    var length = message.length;
+    if (notString) {
+      if (typeof length !== 'number' ||
+        !Array.isArray(message) && 
+        !(ARRAY_BUFFER && ArrayBuffer.isView(message))) {
+        throw ERROR;
+      }
     }
-    var code, index = 0, i, length = message.length || 0, blocks = this.blocks;
+    var code, index = 0, i, blocks = this.blocks;
 
     while (index < length) {
       if (this.hashed) {
@@ -133,7 +180,7 @@
         blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
       }
 
-      if(notString) {
+      if (notString) {
         for (i = this.start; index < length && i < 64; ++index) {
           blocks[i >> 2] |= message[index] << SHIFT[i++ & 3];
         }
@@ -360,9 +407,83 @@
     return buffer;
   };
 
+  function HmacSha256(key, is224, sharedMemory) {
+    var notString = typeof key !== 'string';
+    if (notString) {
+      if (key === null || key === undefined) {
+        throw ERROR;
+      } else if (key.constructor === root.ArrayBuffer) {
+        key = new Uint8Array(key);
+      }
+    }
+    var length = key.length;
+    if (notString) {
+      if (typeof length !== 'number' ||
+        !Array.isArray(key) && 
+        !(ARRAY_BUFFER && ArrayBuffer.isView(key))) {
+        throw ERROR;
+      }
+    } else {
+      var bytes = [], length = key.length, index = 0, code;
+      for (var i = 0; i < length; ++i) {
+        code = key.charCodeAt(i);
+        if (code < 0x80) {
+          bytes[index++] = code;
+        } else if (code < 0x800) {
+          bytes[index++] = (0xc0 | (code >> 6));
+          bytes[index++] = (0x80 | (code & 0x3f));
+        } else if (code < 0xd800 || code >= 0xe000) {
+          bytes[index++] = (0xe0 | (code >> 12));
+          bytes[index++] = (0x80 | ((code >> 6) & 0x3f));
+          bytes[index++] = (0x80 | (code & 0x3f));
+        } else {
+          code = 0x10000 + (((code & 0x3ff) << 10) | (key.charCodeAt(++i) & 0x3ff));
+          bytes[index++] = (0xf0 | (code >> 18));
+          bytes[index++] = (0x80 | ((code >> 12) & 0x3f));
+          bytes[index++] = (0x80 | ((code >> 6) & 0x3f));
+          bytes[index++] = (0x80 | (code & 0x3f));
+        }
+      }
+      key = bytes;
+    }
+
+    if (key.length > 64) {
+      key = (new Sha256(is224, true)).update(key).array();
+    }
+
+    var oKeyPad = [], iKeyPad = [];
+    for (var i = 0; i < 64; ++i) {
+      var b = key[i] || 0;
+      oKeyPad[i] = 0x5c ^ b;
+      iKeyPad[i] = 0x36 ^ b;
+    }
+
+    Sha256.call(this, is224, sharedMemory);
+
+    this.update(iKeyPad);
+    this.oKeyPad = oKeyPad;
+    this.inner = true;
+    this.sharedMemory = sharedMemory;
+  }
+  HmacSha256.prototype = new Sha256();
+
+  HmacSha256.prototype.finalize = function () {
+    Sha256.prototype.finalize.call(this);
+    if (this.inner) {
+      this.inner = false;
+      var innerHash = this.array();
+      Sha256.call(this, this.is224, this.sharedMemory);
+      this.update(this.oKeyPad);
+      this.update(innerHash);
+      Sha256.prototype.finalize.call(this);
+    }
+  };
+
   var exports = createMethod();
   exports.sha256 = exports;
   exports.sha224 = createMethod(true);
+  exports.sha256.hmac = createHmacMethod();
+  exports.sha224.hmac = createHmacMethod(true);
 
   if (COMMON_JS) {
     module.exports = exports;

tests/hmac-test.js

@@ -0,0 +1,230 @@
+(function (sha256, sha224) {
+  Array.prototype.toHexString = ArrayBuffer.prototype.toHexString = function () {
+    var array = new Uint8Array(this);
+    var hex = '';
+    for (var i = 0; i < array.length; ++i) {
+      var c = array[i].toString('16');
+      hex += c.length === 1 ? '0' + c : c;
+    }
+    return hex;
+  };
+
+  var testCases = {
+    sha256_hmac: {
+      'Test Vectors': {
+        'b0344c61d8db38535ca8afceaf0bf12b881dc200c9833da726e9376c2e32cff7': [
+          [0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b],
+          'Hi There'
+        ],
+        '5bdcc146bf60754e6a042426089575c75a003f089d2739839dec58b964ec3843': [
+          'Jefe',
+          'what do ya want for nothing?'
+        ],
+        '773ea91e36800e46854db8ebd09181a72959098b3ef8c122d9635514ced565fe': [
+          [0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa],
+          [0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd]
+        ],
+        '82558a389a443c0ea4cc819899f2083a85f0faa3e578f8077a2e3ff46729665b': [
+          [0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19],
+          [0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd]
+        ],
+        '60e431591ee0b67f0d8a26aacbf5b77f8e0bc6213728c5140546040f0ee37f54': [
+          [0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa],
+          'Test Using Larger Than Block-Size Key - Hash Key First'
+        ],
+        '9b09ffa71b942fcb27635fbcd5b0e944bfdc63644f0713938a7f51535c3a35e2': [
+          [0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa],
+          'This is a test using a larger than block-size key and a larger than block-size data. The key needs to be hashed before being used by the HMAC algorithm.'
+        ]
+      },
+      'UTF8': {
+        '865cc329d317f6d9fdbd183a3c5cc5fd4c370d11f98abbbb404bceb1e6392c7e': ['中文', '中文'],
+        'efeef87be5731506b69bb64a9898a456dd12c94834c36a4d8ba99e3db79ad7ed': ['aécio', 'aécio'],
+        '8a6e527049b9cfc7e1c84bcf356a1289c95da68a586c03de3327f3de0d3737fe': ['𠜎', '𠜎']
+      },
+      'ArrayBuffer': {
+        'e48411262715c8370cd5e7bf8e82bef53bd53712d007f3429351843b77c7bb9b': [
+          new ArrayBuffer(0),
+          'Hi There'
+        ]
+      }
+    },
+    sha224_hmac: {
+      'Test Vectors': {
+        '896fb1128abbdf196832107cd49df33f47b4b1169912ba4f53684b22': [
+          [0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b],
+          'Hi There'
+        ],
+        'a30e01098bc6dbbf45690f3a7e9e6d0f8bbea2a39e6148008fd05e44': [
+          'Jefe',
+          'what do ya want for nothing?'
+        ],
+        '7fb3cb3588c6c1f6ffa9694d7d6ad2649365b0c1f65d69d1ec8333ea': [
+          [0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa],
+          [0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd]
+        ],
+        '6c11506874013cac6a2abc1bb382627cec6a90d86efc012de7afec5a': [
+          [0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19],
+          [0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd]
+        ],
+        '95e9a0db962095adaebe9b2d6f0dbce2d499f112f2d2b7273fa6870e': [
+          [0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa],
+          'Test Using Larger Than Block-Size Key - Hash Key First'
+        ],
+        '3a854166ac5d9f023f54d517d0b39dbd946770db9c2b95c9f6f565d1': [
+          [0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa],
+          'This is a test using a larger than block-size key and a larger than block-size data. The key needs to be hashed before being used by the HMAC algorithm.'
+        ]
+      },
+      'UTF8': {
+        'e2280928fe813aeb7fa59aa14dd5e589041bfdf91945d19d25b9f3db': ['中文', '中文'],
+        '86c53dc054b16f6e006a254891bc9ff0da5df8e1a6faee3b0aaa732d': ['aécio', 'aécio'],
+        'e9e5991bfb84506b105f800afac1599ff807bb8e20db8ffda48997b9': ['𠜎', '𠜎']
+      },
+      'ArrayBuffer': {
+        'da8f94de91d62154b55ea4e8d6eb133f6d553bcd1f1ba205b9488945': [
+          new ArrayBuffer(0),
+          'Hi There'
+        ]
+      }
+    }
+  };
+
+  var errorTestCases = [null, undefined, { length: 0 }, 0, 1, false, true, NaN, Infinity, function () {}];
+
+  function runTestCases(name, algorithm) {
+    var methods = [
+      {
+        name: name,
+        call: algorithm,
+      },
+      {
+        name: name + '.hex',
+        call: algorithm.hex
+      },
+      {
+        name: name + '.array',
+        call: function (key, message) {
+          return algorithm.array(key, message).toHexString();
+        }
+      },
+      {
+        name: name + '.digest',
+        call: function (key, message) {
+          return algorithm.digest(key, message).toHexString();
+        }
+      },
+      {
+        name: name + '.arrayBuffer',
+        call: function (key, message) {
+          return algorithm.arrayBuffer(key, message).toHexString();
+        }
+      }
+    ];
+
+    var classMethods = [
+      {
+        name: 'create',
+        call: function (key, message) {
+          return algorithm.create(key).update(message).toString();
+        }
+      },
+      {
+        name: 'update',
+        call: function (key, message) {
+          return algorithm.update(key, message).toString();
+        }
+      },
+      {
+        name: 'hex',
+        call: function (key, message) {
+          return algorithm.update(key, message).hex();
+        }
+      },
+      {
+        name: 'array',
+        call: function (key, message) {
+          return algorithm.update(key, message).array().toHexString();
+        }
+      },
+      {
+        name: 'digest',
+        call: function (key, message) {
+          return algorithm.update(key, message).digest().toHexString();
+        }
+      },
+      {
+        name: 'arrayBuffer',
+        call: function (key, message) {
+          return algorithm.update(key, message).arrayBuffer().toHexString();
+        }
+      },
+      {
+        name: 'finalize',
+        call: function (key, message) {
+          var hash = algorithm.update(key, 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[0], message[1])).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[0], message[1])).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('sha256_hmac', sha256.hmac);
+  runTestCases('sha224_hmac', sha224.hmac);
+})(sha256, sha224);

tests/index.html

@@ -14,6 +14,7 @@
     mocha.setup('bdd');
   </script>
   <script src="test.js"></script>
+  <script src="hmac-test.js"></script>
   <script>
     mocha.checkLeaks();
     mocha.run();

tests/node-test.js

@@ -3,9 +3,11 @@ expect = require('expect.js');
 sha256 = require('../src/sha256.js').sha256;
 sha224 = require('../src/sha256.js').sha224;
 require('./test.js');
+require('./hmac-test.js');
 
 delete require.cache[require.resolve('../src/sha256.js')]
 delete require.cache[require.resolve('./test.js')]
+delete require.cache[require.resolve('./hmac-test.js')]
 sha256 = null;
 sha224 = null;
 
@@ -15,9 +17,11 @@ window = global;
 sha256 = require('../src/sha256.js').sha256;
 sha224 = require('../src/sha256.js').sha224;
 require('./test.js');
+require('./hmac-test.js');
 
 delete require.cache[require.resolve('../src/sha256.js')]
 delete require.cache[require.resolve('./test.js')]
+delete require.cache[require.resolve('./hmac-test.js')]
 sha256 = null;
 sha224 = null;
 
@@ -27,9 +31,11 @@ JS_SHA256_NO_COMMON_JS = true;
 window = global;
 require('../src/sha256.js');
 require('./test.js');
+require('./hmac-test.js');
 
 delete require.cache[require.resolve('../src/sha256.js')]
 delete require.cache[require.resolve('./test.js')]
+delete require.cache[require.resolve('./hmac-test.js')]
 sha256 = null;
 sha224 = null;
 
@@ -41,6 +47,7 @@ define = function (func) {
   sha256 = func();
   sha224 = sha256.sha224;
   require('./test.js');
+  require('./hmac-test.js');
 };
 define.amd = true;
 

tests/test.js

@@ -52,9 +52,6 @@
       'ArrayBuffer': {
         'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855': new ArrayBuffer(0),
         '6e340b9cffb37a989ca544e6bb780a2c78901d3fb33738768511a30617afa01d': new ArrayBuffer(1),
-      },
-      'Object': {
-        'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855': {what: 'ever'}
       }
     },
     sha224: {
@@ -97,13 +94,12 @@
       'ArrayBuffer': {
         'd14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f': new ArrayBuffer(0),
         'fff9292b4201617bdc4d3053fce02734166a683d7d858a7f5f59b073': new ArrayBuffer(1),
-      },
-      'Object': {
-        'd14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f': {what: 'ever'}
       }
     }
   };
 
+  var errorTestCases = [null, undefined, { length: 0 }, 0, 1, false, true, NaN, Infinity, function () {}];
+
   if (typeof process == 'object') {
     testCases.sha256['Buffer'] = {
       'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855': new Buffer(0),
@@ -233,6 +229,18 @@
           }
         });
       });
+
+      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/);
+            });
+          });
+        });
+      });
     });
   }