uncomment test

### Fixed
- Generates incorrect hash in some cases #43 - dependencies and security issues. #41
20 changed files with 3462 additions and 355 deletions
--- a/.covignore
+++ b/.covignore
@ -1,2 +0,0 @@
-/node_modules/
-/tests/
--- a/.gitignore
+++ b/.gitignore
@ -1,2 +1,3 @@
 /node_modules/
-/covreporter/
+/coverage/
+/.nyc_output/
--- a/.npmignore
+++ b/.npmignore
@ -1 +1,8 @@
-covreporter
+/node_modules/
+/coverage/
+/.nyc_output/
+/tests/
+.covignore
+.travis.yml
+.npmignore
+bower.json
--- a/.travis.yml
+++ b/.travis.yml
@ -1,12 +1,10 @@
 language: node_js
 node_js:
-  - "0.12.15"
-  - "4.5"
-  - "6.5.0"
+  - "6.11.4"
+  - "8.6.0"
 before_install:
  - npm install coveralls
-  - npm install mocha-lcov-reporter
-script: npm run-script coveralls
+after_success: npm run coveralls
 branches:
  only:
    - master
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -1,8 +1,65 @@
 # Change Log

+## v0.11.0 / 2024-01-24
+### Fixed
+- Generates incorrect hash in some cases #43
+- dependencies and security issues. #41
+
+## v0.10.1 / 2023-08-31
+### Added
+- Disable webpack polyfill.
+
+## v0.10.0 / 2023-08-30
+### Fixed
+- Chrome bug by workaround. #40
+- deprecated `new Buffer`, replace with `Buffer.from`. #34
+- dependencies and security issues. #32, #36
+
+### Changed
+- TypeScript interface, secretKey can be bytes like message. #23, #25
+- remove `eval` and use `require` directly. #18, #26
+
+## v0.9.0 / 2017-12-18
+### Fixed
+- incorrect result when first bit is 1 of bytes.
+
+### Changed
+- throw error by Error oject. #13
+
+### Added
+- TypeScript interfaces. #12
+
+## v0.8.0 / 2017-11-19
+### Added
+- support for web worker.
+- typescript types. #10
+
+### Changed
+- prevent webpack to require dependencies.
+
+## v0.7.1 / 2017-10-31
+### Improved
+- performance of hBytes increment.
+
+## v0.7.0 / 2017-10-31
+### Fixed
+- incorrect result when file size >= 512M.
+
+## 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
+
 ## v0.4.0 / 2017-01-23
 ### Added
 - AMD support.
+
 ### Fixed
 - ArrayBuffer dosen't work in Webpack.

@ -13,6 +70,7 @@
 ## v0.3.1 / 2016-09-08
 ### Added
 - some files to npm package.
+
 ### Fixed
 - coding style.

@ -31,14 +89,17 @@
 ## v0.2.1 / 2015-02-05
 ### Fixed
 - special length bug.
+
 ### Added
 - test cases.

 ## v0.2.0 / 2015-02-03
 ### Removed
 - ascii parameter.
+
 ### Improved
 - performance.
+
 ### Added
 - test cases.

@ -55,6 +116,7 @@
 - bower package.
 - travis.
 - coveralls.
+
 ### Fixed
 - JSHint warnings.

--- a/LICENSE.txt
+++ b/LICENSE.txt
@ -1,4 +1,4 @@
-Copyright (c) 2014-2017 Chen, Yi-Cyuan
+Copyright (c) 2014-2024 Chen, Yi-Cyuan

 MIT License

--- a/README.md
+++ b/README.md
@ -6,8 +6,10 @@
 A simple SHA-256 / SHA-224 hash function for JavaScript supports UTF-8 encoding.

 ## Demo
-[SHA256 Online](http://emn178.github.io/online-tools/sha256.html)  
-[SHA224 Online](http://emn178.github.io/online-tools/sha224.html)  
+[SHA256 Online](https://emn178.github.io/online-tools/sha256.html)  
+[SHA224 Online](https://emn178.github.io/online-tools/sha224.html)  
+[SHA256 File Online](https://emn178.github.io/online-tools/sha256_checksum.html)  
+[SHA225 File Online](https://emn178.github.io/online-tools/sha224_checksum.html)  

 ## Download
 [Compress](https://raw.github.com/emn178/js-sha256/master/build/sha256.min.js)  
@ -27,62 +29,84 @@ You could use like this:
 ```JavaScript
 sha256('Message to hash');
 sha224('Message to hash');
+
+var hash = sha256.create();
+hash.update('Message to hash');
+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();
 ```
+
+### Node.js
 If you use node.js, you should require the module first:
 ```JavaScript
-sha256 = require('js-sha256');
+var sha256 = require('js-sha256');
 ```
 or
 ```JavaScript
-sha256 = require('js-sha256').sha256;
-sha224 = require('js-sha256').sha224;
+var sha256 = require('js-sha256').sha256;
+var sha224 = require('js-sha256').sha224;
 ```
-
-## Example
-Code
+or
 ```JavaScript
-sha256('');
-sha256('The quick brown fox jumps over the lazy dog');
-sha256('The quick brown fox jumps over the lazy dog.');
-sha224('');
-sha224('The quick brown fox jumps over the lazy dog');
-sha224('The quick brown fox jumps over the lazy dog.');
+const { sha256, sha224 } = require('js-sha256');
 ```
-Output
-
-    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
-    d7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592
-    ef537f25c895bfa782526529a9b63d97aa631564d5d789c2b765448c8635fb6c
-    d14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f
-    730e109bd7a8a32b1cb9d9a09aa2325d2430587ddbc0c38bad911525
-    619cba8e8e05826e9b8c519c0a5c68f4fb653e8a3d8aa04bb2c8cd4c
-
-It also supports UTF-8 encoding:
-
-Code
+### TypeScript
+If you use TypeScript, you can import like this:
+```TypeScript
+import { sha256, sha224 } from 'js-sha256';
+```
+### RequireJS
+It supports AMD:
 ```JavaScript
-sha256('中文');
-sha224('中文');
+require(['your/path/sha256.js'], function(sha256) {
+// ...
+});
 ```
-Output
-
-    72726d8818f693066ceb69afa364218b692e62ea92b385782363780f47529c21
-    dfbab71afdf54388af4d55f8bd3de8c9b15e0eb916bf9125f4a959d4
-
-It also supports byte `Array`, `Uint8Array`, `ArrayBuffer` input:
-
-Code
+## Example
 ```JavaScript
-sha256([]);
-sha256(new Uint8Array([211, 212]));
+sha256(''); // e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
+sha256('The quick brown fox jumps over the lazy dog'); // d7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592
+sha256('The quick brown fox jumps over the lazy dog.'); // ef537f25c895bfa782526529a9b63d97aa631564d5d789c2b765448c8635fb6c
+sha224(''); // d14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f
+sha224('The quick brown fox jumps over the lazy dog'); // 730e109bd7a8a32b1cb9d9a09aa2325d2430587ddbc0c38bad911525
+sha224('The quick brown fox jumps over the lazy dog.'); // 619cba8e8e05826e9b8c519c0a5c68f4fb653e8a3d8aa04bb2c8cd4c
+
+// It also supports UTF-8 encoding
+sha256('中文'); // 72726d8818f693066ceb69afa364218b692e62ea92b385782363780f47529c21
+sha224('中文'); // dfbab71afdf54388af4d55f8bd3de8c9b15e0eb916bf9125f4a959d4
+
+// It also supports byte `Array`, `Uint8Array`, `ArrayBuffer` input
+sha256([]); // e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
+sha256(new Uint8Array([211, 212])); // 182889f925ae4e5cc37118ded6ed87f7bdc7cab5ec5e78faef2e50048999473f
+
+// Different output
+sha256(''); // e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
+sha256.hex(''); // e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
+sha256.array(''); // [227, 176, 196, 66, 152, 252, 28, 20, 154, 251, 244, 200, 153, 111, 185, 36, 39, 174, 65, 228, 100, 155, 147, 76, 164, 149, 153, 27, 120, 82, 184, 85]
+sha256.digest(''); // [227, 176, 196, 66, 152, 252, 28, 20, 154, 251, 244, 200, 153, 111, 185, 36, 39, 174, 65, 228, 100, 155, 147, 76, 164, 149, 153, 27, 120, 82, 184, 85]
+sha256.arrayBuffer(''); // ArrayBuffer
 ```
-Output

-    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
-    182889f925ae4e5cc37118ded6ed87f7bdc7cab5ec5e78faef2e50048999473f
+## Benchmark
+[jsPerf Benchmark](https://jsperf.app/cidole/2)

 ## License
-The project is released under the [MIT license](http://www.opensource.org/licenses/MIT).
+The project is released under the [MIT license](https://opensource.org/license/mit/).

 ## Contact
 The project's website is located at https://github.com/emn178/js-sha256  
--- a/bower.json
+++ b/bower.json
@ -1,6 +1,6 @@
 {
  "name": "js-sha256",
-  "version": "0.4.0",
+  "version": "0.11.0",
  "main": ["src/sha256.js"],
  "ignore": [
    "samples",
--- a/build/sha256.min.js
+++ b/build/sha256.min.js
--- a/index.d.ts
+++ b/index.d.ts
@ -0,0 +1,149 @@
+type Message = string | number[] | ArrayBuffer | Uint8Array;
+
+interface Hasher {
+  /**
+   * Update hash
+   *
+   * @param message The message you want to hash.
+   */
+  update(message: Message): Hasher;
+
+  /**
+   * Return hash in hex string.
+   */
+  hex(): string;
+
+  /**
+   * Return hash in hex string.
+   */
+  toString(): string;
+
+  /**
+   * Return hash in ArrayBuffer.
+   */
+  arrayBuffer(): ArrayBuffer;
+
+  /**
+   * Return hash in integer array.
+   */
+  digest(): number[];
+
+  /**
+   * Return hash in integer array.
+   */
+  array(): number[];
+}
+
+interface Hmac {
+  /**
+   * Computes a Hash-based message authentication code (HMAC) using a secret key
+   *
+   * @param secretKey The Secret Key
+   * @param message The message you want to hash.
+   */
+  (secretKey: Message, message: Message): string;
+
+  /**
+   * Create a hash object using a secret key.
+   *
+   * @param secretKey The Secret Key
+   */
+  create(secretKey: Message): Hasher;
+
+  /**
+   * Create a hash object and hash message using a secret key
+   *
+   * @param secretKey The Secret Key
+   * @param message The message you want to hash.
+   */
+  update(secretKey: Message, message: Message): Hasher;
+
+  /**
+   * Return hash in hex string.
+   *
+   * @param secretKey The Secret Key
+   * @param message The message you want to hash.
+   */
+  hex(secretKey: Message, message: Message): string;
+
+  /**
+   * Return hash in ArrayBuffer.
+   *
+   * @param secretKey The Secret Key
+   * @param message The message you want to hash.
+   */
+  arrayBuffer(secretKey: Message, message: Message): ArrayBuffer;
+
+  /**
+   * Return hash in integer array.
+   *
+   * @param secretKey The Secret Key
+   * @param message The message you want to hash.
+   */
+  digest(secretKey: Message, message: Message): number[];
+
+  /**
+   * Return hash in integer array.
+   *
+   * @param secretKey The Secret Key
+   * @param message The message you want to hash.
+   */
+  array(secretKey: Message, message: Message): number[];
+}
+
+interface Hash {
+  /**
+   * Hash and return hex string.
+   *
+   * @param message The message you want to hash.
+   */
+  (message: Message): string;
+
+  /**
+   * Create a hash object.
+   */
+  create(): Hasher;
+
+  /**
+   * Create a hash object and hash message.
+   *
+   * @param message The message you want to hash.
+   */
+  update(message: Message): Hasher;
+
+  /**
+   * Return hash in hex string.
+   *
+   * @param message The message you want to hash.
+   */
+  hex(message: Message): string;
+
+  /**
+   * Return hash in ArrayBuffer.
+   *
+   * @param message The message you want to hash.
+   */
+  arrayBuffer(message: Message): ArrayBuffer;
+
+  /**
+   * Return hash in integer array.
+   *
+   * @param message The message you want to hash.
+   */
+  digest(message: Message): number[];
+
+  /**
+   * Return hash in integer array.
+   *
+   * @param message The message you want to hash.
+   */
+  array(message: Message): number[];
+
+  /**
+   * HMAC interface
+   */
+  hmac: Hmac;
+}
+
+export var sha256: Hash;
+export var sha224: Hash;
--- a/package-lock.json
+++ b/package-lock.json
--- a/package.json
+++ b/package.json
@ -1,19 +1,20 @@
 {
  "name": "js-sha256",
-  "version": "0.4.0",
+  "version": "0.11.0",
  "description": "A simple SHA-256 / SHA-224 hash function for JavaScript supports UTF-8 encoding.",
  "main": "src/sha256.js",
  "devDependencies": {
    "expect.js": "~0.3.1",
-    "jscoverage": "~0.5.9",
-    "mocha": "~2.3.4",
-    "uglifyjs": "~2.4.10"
+    "mocha": "~10.2.0",
+    "nyc": "^15.1.0",
+    "tiny-worker": "^2.3.0",
+    "uglify-js": "^3.1.9"
  },
  "scripts": {
-    "test": "mocha tests/node-test.js -r jscoverage",
-    "report": "mocha tests/node-test.js -r jscoverage --covout=html",
-    "coveralls": "mocha tests/node-test.js -R mocha-lcov-reporter -r jscoverage | coveralls",
-    "build": "uglifyjs src/sha256.js --compress --mangle --comments --output build/sha256.min.js"
+    "test": "nyc mocha tests/node-test.js",
+    "report": "nyc --reporter=html --reporter=text mocha tests/node-test.js",
+    "coveralls": "nyc report --reporter=text-lcov | coveralls",
+    "build": "uglifyjs src/sha256.js -c -m eval --comments -o build/sha256.min.js"
  },
  "repository": {
    "type": "git",
@ -34,5 +35,14 @@
  "homepage": "https://github.com/emn178/js-sha256",
  "bugs": {
    "url": "https://github.com/emn178/js-sha256/issues"
+  },
+  "nyc": {
+    "exclude": [
+      "tests"
+    ]
+  },
+  "browser": {
+    "crypto": false,
+    "buffer": false
  }
 }
--- a/src/sha256.js
+++ b/src/sha256.js
@ -1,114 +1,278 @@
 /**
 * [js-sha256]{@link https://github.com/emn178/js-sha256}
 *
- * @version 0.4.0
+ * @version 0.11.0
 * @author Chen, Yi-Cyuan [emn178@gmail.com]
- * @copyright Chen, Yi-Cyuan 2014-2017
+ * @copyright Chen, Yi-Cyuan 2014-2024
 * @license MIT
 */
 /*jslint bitwise: true */
 (function () {
  'use strict';

-  var root = typeof window === 'object' ? window : {};
-  var NODE_JS = !root.JS_SHA256_NO_NODE_JS && typeof process == 'object' && process.versions && process.versions.node;
+  var ERROR = 'input is invalid type';
+  var WINDOW = typeof window === 'object';
+  var root = WINDOW ? window : {};
+  if (root.JS_SHA256_NO_WINDOW) {
+    WINDOW = false;
+  }
+  var WEB_WORKER = !WINDOW && typeof self === 'object';
+  var NODE_JS = !root.JS_SHA256_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_SHA256_NO_COMMON_JS && typeof module === 'object' && module.exports;
  var AMD = typeof define === 'function' && define.amd;
+  var ARRAY_BUFFER = !root.JS_SHA256_NO_ARRAY_BUFFER && typeof ArrayBuffer !== 'undefined';
  var HEX_CHARS = '0123456789abcdef'.split('');
  var EXTRA = [-2147483648, 8388608, 32768, 128];
  var SHIFT = [24, 16, 8, 0];
-  var K =[0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
+  var K = [
+    0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
    0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
    0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
    0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
    0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
    0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
    0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
-          0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2];
+    0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
+  ];
+  var OUTPUT_TYPES = ['hex', 'array', 'digest', 'arrayBuffer'];

  var blocks = [];

-  var sha224 = function (message) {
-    return sha256(message, true);
+  if (root.JS_SHA256_NO_NODE_JS || !Array.isArray) {
+    Array.isArray = function (obj) {
+      return Object.prototype.toString.call(obj) === '[object Array]';
+    };
+  }
+
+  if (ARRAY_BUFFER && (root.JS_SHA256_NO_ARRAY_BUFFER_IS_VIEW || !ArrayBuffer.isView)) {
+    ArrayBuffer.isView = function (obj) {
+      return typeof obj === 'object' && obj.buffer && obj.buffer.constructor === ArrayBuffer;
+    };
+  }
+
+  var createOutputMethod = function (outputType, is224) {
+    return function (message) {
+      return new Sha256(is224, true).update(message)[outputType]();
+    };
+  };
+
+  var createMethod = function (is224) {
+    var method = createOutputMethod('hex', is224);
+    if (NODE_JS) {
+      method = nodeWrap(method, is224);
+    }
+    method.create = function () {
+      return new Sha256(is224);
+    };
+    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(type, is224);
+    }
+    return method;
  };

-  var sha256 = function (message, is224) {
-    var notString = typeof message != 'string';
-    if (notString && message.constructor == root.ArrayBuffer) {
+  var nodeWrap = function (method, is224) {
+    var crypto = require('crypto')
+    var Buffer = require('buffer').Buffer;
+    var algorithm = is224 ? 'sha224' : 'sha256';
+    var bufferFrom;
+    if (Buffer.from && !root.JS_SHA256_NO_BUFFER_FROM) {
+      bufferFrom = Buffer.from;
+    } else {
+      bufferFrom = function (message) {
+        return new Buffer(message);
+      };
+    }
+    var nodeMethod = function (message) {
+      if (typeof message === 'string') {
+        return crypto.createHash(algorithm).update(message, 'utf8').digest('hex');
+      } else {
+        if (message === null || message === undefined) {
+          throw new Error(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(bufferFrom(message)).digest('hex');
+      } else {
+        return method(message);
+      }
+    };
+    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;
+  };

-    var h0, h1, h2, h3, h4, h5, h6, h7, block, code, first = true, end = false,
-        i, j, index = 0, start = 0, bytes = 0, length = message.length,
-        s0, s1, maj, t1, t2, ch, ab, da, cd, bc;
+  function Sha256(is224, sharedMemory) {
+    if (sharedMemory) {
+      blocks[0] = blocks[16] = blocks[1] = blocks[2] = blocks[3] =
+        blocks[4] = blocks[5] = blocks[6] = blocks[7] =
+        blocks[8] = blocks[9] = blocks[10] = blocks[11] =
+        blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
+      this.blocks = blocks;
+    } else {
+      this.blocks = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
+    }

    if (is224) {
-      h0 = 0xc1059ed8;
-      h1 = 0x367cd507;
-      h2 = 0x3070dd17;
-      h3 = 0xf70e5939;
-      h4 = 0xffc00b31;
-      h5 = 0x68581511;
-      h6 = 0x64f98fa7;
-      h7 = 0xbefa4fa4;
+      this.h0 = 0xc1059ed8;
+      this.h1 = 0x367cd507;
+      this.h2 = 0x3070dd17;
+      this.h3 = 0xf70e5939;
+      this.h4 = 0xffc00b31;
+      this.h5 = 0x68581511;
+      this.h6 = 0x64f98fa7;
+      this.h7 = 0xbefa4fa4;
    } else { // 256
-      h0 = 0x6a09e667;
-      h1 = 0xbb67ae85;
-      h2 = 0x3c6ef372;
-      h3 = 0xa54ff53a;
-      h4 = 0x510e527f;
-      h5 = 0x9b05688c;
-      h6 = 0x1f83d9ab;
-      h7 = 0x5be0cd19;
-    }
-    block = 0;
-    do {
-      blocks[0] = block;
-      blocks[16] = blocks[1] = blocks[2] = blocks[3] =
+      this.h0 = 0x6a09e667;
+      this.h1 = 0xbb67ae85;
+      this.h2 = 0x3c6ef372;
+      this.h3 = 0xa54ff53a;
+      this.h4 = 0x510e527f;
+      this.h5 = 0x9b05688c;
+      this.h6 = 0x1f83d9ab;
+      this.h7 = 0x5be0cd19;
+    }
+
+    this.block = this.start = this.bytes = this.hBytes = 0;
+    this.finalized = this.hashed = false;
+    this.first = true;
+    this.is224 = is224;
+  }
+
+  Sha256.prototype.update = function (message) {
+    if (this.finalized) {
+      return;
+    }
+    var notString, type = typeof message;
+    if (type !== 'string') {
+      if (type === 'object') {
+        if (message === null) {
+          throw new Error(ERROR);
+        } else if (ARRAY_BUFFER && message.constructor === ArrayBuffer) {
+          message = new Uint8Array(message);
+        } else if (!Array.isArray(message)) {
+          if (!ARRAY_BUFFER || !ArrayBuffer.isView(message)) {
+            throw new Error(ERROR);
+          }
+        }
+      } else {
+        throw new Error(ERROR);
+      }
+      notString = true;
+    }
+    var code, index = 0, i, length = message.length, blocks = this.blocks;
+    while (index < length) {
+      if (this.hashed) {
+        this.hashed = false;
+        blocks[0] = this.block;
+        this.block = blocks[16] = blocks[1] = blocks[2] = blocks[3] =
          blocks[4] = blocks[5] = blocks[6] = blocks[7] =
          blocks[8] = blocks[9] = blocks[10] = blocks[11] =
          blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
+      }
+
      if (notString) {
-        for (i = start; index < length && i < 64; ++index) {
-          blocks[i >> 2] |= message[index] << SHIFT[i++ & 3];
+        for (i = this.start; index < length && i < 64; ++index) {
+          blocks[i >>> 2] |= message[index] << SHIFT[i++ & 3];
        }
      } else {
-        for (i = start; index < length && i < 64; ++index) {
+        for (i = this.start; index < length && i < 64; ++index) {
          code = message.charCodeAt(index);
          if (code < 0x80) {
-            blocks[i >> 2] |= code << SHIFT[i++ & 3];
+            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];
+            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];
+            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];
+            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;
+      this.bytes += i - this.start;
+      if (i >= 64) {
+        this.block = blocks[16];
+        this.start = i - 64;
+        this.hash();
+        this.hashed = true;
+      } else {
+        this.start = i;
      }
-      bytes += i - start;
-      start = i - 64;
-      if (index == length) {
-        blocks[i >> 2] |= EXTRA[i & 3];
-        ++index;
    }
-      block = blocks[16];
-      if (index > length && i < 56) {
-        blocks[15] = bytes << 3;
-        end = true;
+    if (this.bytes > 4294967295) {
+      this.hBytes += this.bytes / 4294967296 << 0;
+      this.bytes = this.bytes % 4294967296;
    }
+    return this;
+  };
+
+  Sha256.prototype.finalize = function () {
+    if (this.finalized) {
+      return;
+    }
+    this.finalized = true;
+    var blocks = this.blocks, i = this.lastByteIndex;
+    blocks[16] = this.block;
+    blocks[i >>> 2] |= EXTRA[i & 3];
+    this.block = blocks[16];
+    if (i >= 56) {
+      if (!this.hashed) {
+        this.hash();
+      }
+      blocks[0] = this.block;
+      blocks[16] = blocks[1] = blocks[2] = blocks[3] =
+        blocks[4] = blocks[5] = blocks[6] = blocks[7] =
+        blocks[8] = blocks[9] = blocks[10] = blocks[11] =
+        blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
+    }
+    blocks[14] = this.hBytes << 3 | this.bytes >>> 29;
+    blocks[15] = this.bytes << 3;
+    this.hash();
+  };
+
+  Sha256.prototype.hash = function () {
+    var a = this.h0, b = this.h1, c = this.h2, d = this.h3, e = this.h4, f = this.h5, g = this.h6,
+      h = this.h7, blocks = this.blocks, j, s0, s1, maj, t1, t2, ch, ab, da, cd, bc;

-      var a = h0, b = h1, c = h2, d = h3, e = h4, f = h5, g = h6, h = h7;
    for (j = 16; j < 64; ++j) {
      // rightrotate
      t1 = blocks[j - 15];
@ -120,8 +284,8 @@

    bc = b & c;
    for (j = 0; j < 64; j += 4) {
-        if (first) {
-          if (is224) {
+      if (this.first) {
+        if (this.is224) {
          ab = 300032;
          t1 = blocks[0] - 1413257819;
          h = t1 - 150054599 << 0;
@ -132,7 +296,7 @@
          h = t1 - 1521486534 << 0;
          d = t1 + 143694565 << 0;
        }
-          first = false;
+        this.first = false;
      } else {
        s0 = ((a >>> 2) | (a << 30)) ^ ((a >>> 13) | (a << 19)) ^ ((a >>> 22) | (a << 10));
        s1 = ((e >>> 6) | (e << 26)) ^ ((e >>> 11) | (e << 21)) ^ ((e >>> 25) | (e << 7));
@ -171,64 +335,188 @@
      t2 = s0 + maj;
      e = a + t1 << 0;
      a = t1 + t2 << 0;
+      this.chromeBugWorkAround = true;
    }

-      h0 = h0 + a << 0;
-      h1 = h1 + b << 0;
-      h2 = h2 + c << 0;
-      h3 = h3 + d << 0;
-      h4 = h4 + e << 0;
-      h5 = h5 + f << 0;
-      h6 = h6 + g << 0;
-      h7 = h7 + h << 0;
-    } while (!end);
-
-    var hex = HEX_CHARS[(h0 >> 28) & 0x0F] + HEX_CHARS[(h0 >> 24) & 0x0F] +
-              HEX_CHARS[(h0 >> 20) & 0x0F] + HEX_CHARS[(h0 >> 16) & 0x0F] +
-              HEX_CHARS[(h0 >> 12) & 0x0F] + HEX_CHARS[(h0 >> 8) & 0x0F] +
-              HEX_CHARS[(h0 >> 4) & 0x0F] + HEX_CHARS[h0 & 0x0F] +
-              HEX_CHARS[(h1 >> 28) & 0x0F] + HEX_CHARS[(h1 >> 24) & 0x0F] +
-              HEX_CHARS[(h1 >> 20) & 0x0F] + HEX_CHARS[(h1 >> 16) & 0x0F] +
-              HEX_CHARS[(h1 >> 12) & 0x0F] + HEX_CHARS[(h1 >> 8) & 0x0F] +
-              HEX_CHARS[(h1 >> 4) & 0x0F] + HEX_CHARS[h1 & 0x0F] +
-              HEX_CHARS[(h2 >> 28) & 0x0F] + HEX_CHARS[(h2 >> 24) & 0x0F] +
-              HEX_CHARS[(h2 >> 20) & 0x0F] + HEX_CHARS[(h2 >> 16) & 0x0F] +
-              HEX_CHARS[(h2 >> 12) & 0x0F] + HEX_CHARS[(h2 >> 8) & 0x0F] +
-              HEX_CHARS[(h2 >> 4) & 0x0F] + HEX_CHARS[h2 & 0x0F] +
-              HEX_CHARS[(h3 >> 28) & 0x0F] + HEX_CHARS[(h3 >> 24) & 0x0F] +
-              HEX_CHARS[(h3 >> 20) & 0x0F] + HEX_CHARS[(h3 >> 16) & 0x0F] +
-              HEX_CHARS[(h3 >> 12) & 0x0F] + HEX_CHARS[(h3 >> 8) & 0x0F] +
-              HEX_CHARS[(h3 >> 4) & 0x0F] + HEX_CHARS[h3 & 0x0F] +
-              HEX_CHARS[(h4 >> 28) & 0x0F] + HEX_CHARS[(h4 >> 24) & 0x0F] +
-              HEX_CHARS[(h4 >> 20) & 0x0F] + HEX_CHARS[(h4 >> 16) & 0x0F] +
-              HEX_CHARS[(h4 >> 12) & 0x0F] + HEX_CHARS[(h4 >> 8) & 0x0F] +
-              HEX_CHARS[(h4 >> 4) & 0x0F] + HEX_CHARS[h4 & 0x0F] +
-              HEX_CHARS[(h5 >> 28) & 0x0F] + HEX_CHARS[(h5 >> 24) & 0x0F] +
-              HEX_CHARS[(h5 >> 20) & 0x0F] + HEX_CHARS[(h5 >> 16) & 0x0F] +
-              HEX_CHARS[(h5 >> 12) & 0x0F] + HEX_CHARS[(h5 >> 8) & 0x0F] +
-              HEX_CHARS[(h5 >> 4) & 0x0F] + HEX_CHARS[h5 & 0x0F] +
-              HEX_CHARS[(h6 >> 28) & 0x0F] + HEX_CHARS[(h6 >> 24) & 0x0F] +
-              HEX_CHARS[(h6 >> 20) & 0x0F] + HEX_CHARS[(h6 >> 16) & 0x0F] +
-              HEX_CHARS[(h6 >> 12) & 0x0F] + HEX_CHARS[(h6 >> 8) & 0x0F] +
-              HEX_CHARS[(h6 >> 4) & 0x0F] + HEX_CHARS[h6 & 0x0F];
-    if (!is224) {
-      hex += HEX_CHARS[(h7 >> 28) & 0x0F] + HEX_CHARS[(h7 >> 24) & 0x0F] +
-             HEX_CHARS[(h7 >> 20) & 0x0F] + HEX_CHARS[(h7 >> 16) & 0x0F] +
-             HEX_CHARS[(h7 >> 12) & 0x0F] + HEX_CHARS[(h7 >> 8) & 0x0F] +
-             HEX_CHARS[(h7 >> 4) & 0x0F] + HEX_CHARS[h7 & 0x0F];
+    this.h0 = this.h0 + a << 0;
+    this.h1 = this.h1 + b << 0;
+    this.h2 = this.h2 + c << 0;
+    this.h3 = this.h3 + d << 0;
+    this.h4 = this.h4 + e << 0;
+    this.h5 = this.h5 + f << 0;
+    this.h6 = this.h6 + g << 0;
+    this.h7 = this.h7 + h << 0;
+  };
+
+  Sha256.prototype.hex = function () {
+    this.finalize();
+
+    var h0 = this.h0, h1 = this.h1, h2 = this.h2, h3 = this.h3, h4 = this.h4, h5 = this.h5,
+      h6 = this.h6, h7 = this.h7;
+
+    var hex = HEX_CHARS[(h0 >>> 28) & 0x0F] + HEX_CHARS[(h0 >>> 24) & 0x0F] +
+      HEX_CHARS[(h0 >>> 20) & 0x0F] + HEX_CHARS[(h0 >>> 16) & 0x0F] +
+      HEX_CHARS[(h0 >>> 12) & 0x0F] + HEX_CHARS[(h0 >>> 8) & 0x0F] +
+      HEX_CHARS[(h0 >>> 4) & 0x0F] + HEX_CHARS[h0 & 0x0F] +
+      HEX_CHARS[(h1 >>> 28) & 0x0F] + HEX_CHARS[(h1 >>> 24) & 0x0F] +
+      HEX_CHARS[(h1 >>> 20) & 0x0F] + HEX_CHARS[(h1 >>> 16) & 0x0F] +
+      HEX_CHARS[(h1 >>> 12) & 0x0F] + HEX_CHARS[(h1 >>> 8) & 0x0F] +
+      HEX_CHARS[(h1 >>> 4) & 0x0F] + HEX_CHARS[h1 & 0x0F] +
+      HEX_CHARS[(h2 >>> 28) & 0x0F] + HEX_CHARS[(h2 >>> 24) & 0x0F] +
+      HEX_CHARS[(h2 >>> 20) & 0x0F] + HEX_CHARS[(h2 >>> 16) & 0x0F] +
+      HEX_CHARS[(h2 >>> 12) & 0x0F] + HEX_CHARS[(h2 >>> 8) & 0x0F] +
+      HEX_CHARS[(h2 >>> 4) & 0x0F] + HEX_CHARS[h2 & 0x0F] +
+      HEX_CHARS[(h3 >>> 28) & 0x0F] + HEX_CHARS[(h3 >>> 24) & 0x0F] +
+      HEX_CHARS[(h3 >>> 20) & 0x0F] + HEX_CHARS[(h3 >>> 16) & 0x0F] +
+      HEX_CHARS[(h3 >>> 12) & 0x0F] + HEX_CHARS[(h3 >>> 8) & 0x0F] +
+      HEX_CHARS[(h3 >>> 4) & 0x0F] + HEX_CHARS[h3 & 0x0F] +
+      HEX_CHARS[(h4 >>> 28) & 0x0F] + HEX_CHARS[(h4 >>> 24) & 0x0F] +
+      HEX_CHARS[(h4 >>> 20) & 0x0F] + HEX_CHARS[(h4 >>> 16) & 0x0F] +
+      HEX_CHARS[(h4 >>> 12) & 0x0F] + HEX_CHARS[(h4 >>> 8) & 0x0F] +
+      HEX_CHARS[(h4 >>> 4) & 0x0F] + HEX_CHARS[h4 & 0x0F] +
+      HEX_CHARS[(h5 >>> 28) & 0x0F] + HEX_CHARS[(h5 >>> 24) & 0x0F] +
+      HEX_CHARS[(h5 >>> 20) & 0x0F] + HEX_CHARS[(h5 >>> 16) & 0x0F] +
+      HEX_CHARS[(h5 >>> 12) & 0x0F] + HEX_CHARS[(h5 >>> 8) & 0x0F] +
+      HEX_CHARS[(h5 >>> 4) & 0x0F] + HEX_CHARS[h5 & 0x0F] +
+      HEX_CHARS[(h6 >>> 28) & 0x0F] + HEX_CHARS[(h6 >>> 24) & 0x0F] +
+      HEX_CHARS[(h6 >>> 20) & 0x0F] + HEX_CHARS[(h6 >>> 16) & 0x0F] +
+      HEX_CHARS[(h6 >>> 12) & 0x0F] + HEX_CHARS[(h6 >>> 8) & 0x0F] +
+      HEX_CHARS[(h6 >>> 4) & 0x0F] + HEX_CHARS[h6 & 0x0F];
+    if (!this.is224) {
+      hex += HEX_CHARS[(h7 >>> 28) & 0x0F] + HEX_CHARS[(h7 >>> 24) & 0x0F] +
+        HEX_CHARS[(h7 >>> 20) & 0x0F] + HEX_CHARS[(h7 >>> 16) & 0x0F] +
+        HEX_CHARS[(h7 >>> 12) & 0x0F] + HEX_CHARS[(h7 >>> 8) & 0x0F] +
+        HEX_CHARS[(h7 >>> 4) & 0x0F] + HEX_CHARS[h7 & 0x0F];
    }
    return hex;
  };

-  var exports = sha256;
-  exports.sha256 = sha256;
-  exports.sha224 = sha224;
+  Sha256.prototype.toString = Sha256.prototype.hex;
+
+  Sha256.prototype.digest = function () {
+    this.finalize();
+
+    var h0 = this.h0, h1 = this.h1, h2 = this.h2, h3 = this.h3, h4 = this.h4, h5 = this.h5,
+      h6 = this.h6, h7 = this.h7;
+
+    var arr = [
+      (h0 >>> 24) & 0xFF, (h0 >>> 16) & 0xFF, (h0 >>> 8) & 0xFF, h0 & 0xFF,
+      (h1 >>> 24) & 0xFF, (h1 >>> 16) & 0xFF, (h1 >>> 8) & 0xFF, h1 & 0xFF,
+      (h2 >>> 24) & 0xFF, (h2 >>> 16) & 0xFF, (h2 >>> 8) & 0xFF, h2 & 0xFF,
+      (h3 >>> 24) & 0xFF, (h3 >>> 16) & 0xFF, (h3 >>> 8) & 0xFF, h3 & 0xFF,
+      (h4 >>> 24) & 0xFF, (h4 >>> 16) & 0xFF, (h4 >>> 8) & 0xFF, h4 & 0xFF,
+      (h5 >>> 24) & 0xFF, (h5 >>> 16) & 0xFF, (h5 >>> 8) & 0xFF, h5 & 0xFF,
+      (h6 >>> 24) & 0xFF, (h6 >>> 16) & 0xFF, (h6 >>> 8) & 0xFF, h6 & 0xFF
+    ];
+    if (!this.is224) {
+      arr.push((h7 >>> 24) & 0xFF, (h7 >>> 16) & 0xFF, (h7 >>> 8) & 0xFF, h7 & 0xFF);
+    }
+    return arr;
+  };
+
+  Sha256.prototype.array = Sha256.prototype.digest;
+
+  Sha256.prototype.arrayBuffer = function () {
+    this.finalize();
+
+    var buffer = new ArrayBuffer(this.is224 ? 28 : 32);
+    var dataView = new DataView(buffer);
+    dataView.setUint32(0, this.h0);
+    dataView.setUint32(4, this.h1);
+    dataView.setUint32(8, this.h2);
+    dataView.setUint32(12, this.h3);
+    dataView.setUint32(16, this.h4);
+    dataView.setUint32(20, this.h5);
+    dataView.setUint32(24, this.h6);
+    if (!this.is224) {
+      dataView.setUint32(28, this.h7);
+    }
+    return buffer;
+  };
+
+  function HmacSha256(key, is224, sharedMemory) {
+    var i, type = typeof key;
+    if (type === 'string') {
+      var bytes = [], length = key.length, index = 0, code;
+      for (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;
+    } else {
+      if (type === 'object') {
+        if (key === null) {
+          throw new Error(ERROR);
+        } else if (ARRAY_BUFFER && key.constructor === ArrayBuffer) {
+          key = new Uint8Array(key);
+        } else if (!Array.isArray(key)) {
+          if (!ARRAY_BUFFER || !ArrayBuffer.isView(key)) {
+            throw new Error(ERROR);
+          }
+        }
+      } else {
+        throw new Error(ERROR);
+      }
+    }
+
+    if (key.length > 64) {
+      key = (new Sha256(is224, true)).update(key).array();
+    }
+
+    var oKeyPad = [], iKeyPad = [];
+    for (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;
  } else {
-    root.sha256 = sha256;
-    root.sha224 = sha224;
+    root.sha256 = exports.sha256;
+    root.sha224 = exports.sha224;
    if (AMD) {
      define(function () {
        return exports;
--- a/tests/hmac-test.js
+++ b/tests/hmac-test.js
@ -0,0 +1,245 @@
+(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']
+      }
+    },
+    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']
+      }
+    }
+  };
+
+  if (!(typeof JS_SHA256_NO_ARRAY_BUFFER === 'boolean' && JS_SHA256_NO_ARRAY_BUFFER)) {
+    testCases.sha256_hmac.Uint8Array = {
+      'e48411262715c8370cd5e7bf8e82bef53bd53712d007f3429351843b77c7bb9b': [
+        new Uint8Array(0),
+        'Hi There'
+      ]
+    };
+    testCases.sha256_hmac.ArrayBuffer = {
+      'e48411262715c8370cd5e7bf8e82bef53bd53712d007f3429351843b77c7bb9b': [
+        new ArrayBuffer(0),
+        'Hi There'
+      ]
+    };
+    testCases.sha224_hmac.Uint8Array = {
+      'da8f94de91d62154b55ea4e8d6eb133f6d553bcd1f1ba205b9488945': [
+        new ArrayBuffer(0),
+        'Hi There'
+      ]
+    };
+    testCases.sha224_hmac.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);
--- a/tests/index.html
+++ b/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();
--- a/tests/node-test.js
+++ b/tests/node-test.js
@ -1,47 +1,117 @@
-// Node.js env
 expect = require('expect.js');
-sha256 = require('../src/sha256.js').sha256;
-sha224 = require('../src/sha256.js').sha224;
-require('./test.js');
+Worker = require("tiny-worker");

-delete require.cache[require.resolve('../src/sha256.js')]
-delete require.cache[require.resolve('./test.js')]
+function unset() {
+  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;
+  BUFFER = undefined;
+  JS_SHA256_NO_WINDOW = undefined;
+  JS_SHA256_NO_NODE_JS = undefined;
+  JS_SHA256_NO_COMMON_JS = undefined;
+  JS_SHA256_NO_ARRAY_BUFFER = undefined;
+  JS_SHA256_NO_ARRAY_BUFFER_IS_VIEW = undefined;
+  window = undefined;
+}

-// Webpack browser env
-JS_SHA256_NO_NODE_JS = true;
-window = global;
+function requireToGlobal() {
  sha256 = require('../src/sha256.js').sha256;
  sha224 = require('../src/sha256.js').sha224;
+}
+
+function runCommonJsTest() {
+  requireToGlobal();
  require('./test.js');
+  require('./hmac-test.js');
+  unset();
+}

-delete require.cache[require.resolve('../src/sha256.js')]
-delete require.cache[require.resolve('./test.js')]
-sha256 = null;
-sha224 = null;
+function runWindowTest() {
+  window = global;
+  require('../src/sha256.js');
+  require('./test.js');
+  require('./hmac-test.js');
+  unset();
+}
+
+// Node.js env
+BUFFER = true;
+runCommonJsTest();
+
+// Node.js env, no Buffer.from
+JS_SHA256_NO_BUFFER_FROM = true
+runCommonJsTest();
+
+// Webpack browser env
+JS_SHA256_NO_NODE_JS = true;
+window = global;
+runCommonJsTest();

 // browser env
 JS_SHA256_NO_NODE_JS = true;
 JS_SHA256_NO_COMMON_JS = true;
-window = global;
-require('../src/sha256.js');
-require('./test.js');
+runWindowTest();

-delete require.cache[require.resolve('../src/sha256.js')]
-delete require.cache[require.resolve('./test.js')]
-sha256 = null;
-sha224 = null;
+// browser env and no array buffer
+JS_SHA256_NO_NODE_JS = true;
+JS_SHA256_NO_COMMON_JS = true;
+JS_SHA256_NO_ARRAY_BUFFER = true;
+runWindowTest();
+
+// browser env and no isView
+JS_SHA256_NO_NODE_JS = true;
+JS_SHA256_NO_COMMON_JS = true;
+JS_SHA256_NO_ARRAY_BUFFER_IS_VIEW = true;
+runWindowTest();

 // browser AMD
 JS_SHA256_NO_NODE_JS = true;
 JS_SHA256_NO_COMMON_JS = true;
+JS_SHA256_NO_ARRAY_BUFFER_IS_VIEW = false;
 window = global;
 define = function (func) {
  sha256 = func();
  sha224 = sha256.sha224;
  require('./test.js');
+  require('./hmac-test.js');
 };
 define.amd = true;

 require('../src/sha256.js');
+unset();
+
+// webworker
+WORKER = 'tests/worker.js';
+SOURCE = 'src/sha256.js';
+
+require('./worker-test.js');
+
+delete require.cache[require.resolve('./worker-test.js')];
+
+// cover webworker
+JS_SHA256_NO_WINDOW = true;
+JS_SHA256_NO_NODE_JS = true;
+WORKER = './worker.js';
+SOURCE = '../src/sha256.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');
--- a/tests/test.js
+++ b/tests/test.js
@ -1,113 +1,260 @@
 (function (sha256, sha224) {
-  describe('sha256', function () {
-    context('when ascii', function () {
-      context('and less than 64 bytes', function () {
-        it('should be equal', function () {
-          expect(sha256('')).to.be('e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855');
-          expect(sha256('The quick brown fox jumps over the lazy dog')).to.be('d7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592');
-          expect(sha256('The quick brown fox jumps over the lazy dog.')).to.be('ef537f25c895bfa782526529a9b63d97aa631564d5d789c2b765448c8635fb6c');
-        });
-      });
+  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;
+  };

-      context('and more than 64 bytes', function () {
-        it('should be equal', function () {
-          expect(sha256('The MD5 message-digest algorithm is a widely used cryptographic hash function producing a 128-bit (16-byte) hash value, typically expressed in text format as a 32 digit hexadecimal number. MD5 has been utilized in a wide variety of cryptographic applications, and is also commonly used to verify data integrity.')).to.be('54e73d89e1924fdcd056390266a983924b6d6d461e9470b6cd50bbaf69b5c54c');
-        });
-      });
-    });
+  var testCases = {
+    sha256: {
+      'ascii': {
+        'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855': '',
+        'd7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592': 'The quick brown fox jumps over the lazy dog',
+        'ef537f25c895bfa782526529a9b63d97aa631564d5d789c2b765448c8635fb6c': 'The quick brown fox jumps over the lazy dog.'
+      },
+      'ascii more than 64 bytes': {
+        '54e73d89e1924fdcd056390266a983924b6d6d461e9470b6cd50bbaf69b5c54c': 'The MD5 message-digest algorithm is a widely used cryptographic hash function producing a 128-bit (16-byte) hash value, typically expressed in text format as a 32 digit hexadecimal number. MD5 has been utilized in a wide variety of cryptographic applications, and is also commonly used to verify data integrity.'
+      },
+      'UTF8': {
+        '72726d8818f693066ceb69afa364218b692e62ea92b385782363780f47529c21': '中文',
+        '53196d1acfce0c4b264e01e8018c989d571351f59e33f055f76ff15b4f0516c6': 'aécio',
+        '8d10a48685dbc34484696de7ea7434d80a54c1d60100530faccf697463ef19c9': '𠜎',
+        '2c731ad02e3d0e3c863bdbce4cce221e0be1d31efffdd8e1455a835e8287dc33': 'Tehtäväsi on muotoilla teksti, jossa käyttäjälle suositellaan hänen henkilökohtaisiin tietoihinsa perustuen avioehdon tekemistä. Suosittelemme nimenomaan tätä tuotetta käyttäjän henkilökohtaisista tiedoista johtuen. Tuottamasi tekstin tulee olla lyhyt, persoonallinen, ymmärrettävä ja todenmukainen. Suositus perustuu seuraaviin seikkoihin:\n\nSeikka 0: Avioehdon tekeminen on verohyötyjen vuoksi suositeltavaa, koska olet ilmaissut että haluat kuoleman tapauksessa turvata ensisijaisesti aviopuolisosi asemaa (ennemmin kuin lasten asemaa). Avioehdolla voit määrätä, että puolet kuolleen puolison omaisuudesta siirtyy verovapaasti leskelle.\n\nVoit halutessasi hyödyntää seuraavia tietoja tekstin muotoilussa persoonallisemmaksi: Käyttäjällä on kumppani nimeltä PARTNER_NAME. Käyttäjällä on suurperhe. Käyttäjällä on lapsiperhe.\n\nPuhuttele käyttäjää siihen sävyyn että tiedät jo mitä käyttäjä haluaa, koska hän on kertonut toiveistaan, ja niiden perusteella tehty suositus on ilmiselvä. Joten älä käytä epävarmoja ilmaisuja kuten "halutessasi", vaan kirjoita itsevarmoilla ilmaisuilla kuten "koska haluat". Älä tee oletuksia käyttäjän sukupuolesta, emme tiedä onko hän mies vai nainen. Älä käytä sanaa jälkikasvu, puhu ennemmin lapsesta tai lapsista riippuen onko lapsia yksi vai useampia. Älä puhuttele käyttäjää ensimmäisessä persoonassa, käytä ennemmin passiivimuotoa. Tekstin sävyn tulisi olla neutraalin asiallinen, ei melodramaattinen eikä leikkisä. Pysy totuudessa, älä keksi uusia seikkoja yllä listattujen lisäksi. Viittaa ihmisiin nimillä silloin kun se on mahdollista. Tekstin tulisi olla vain muutaman lauseen mittainen. Älä siis kirjoita pitkiä selityksiä äläkä kirjoita listoja. Tiivistä oleellinen tieto lyhyeksi ja persoonalliseksi tekstiksi.'
+      },
+      'UTF8 more than 64 bytes': {
+        'd691014feebf35b3500ef6f6738d0094cac63628a7a018a980a40292a77703d1': '訊息摘要演算法第五版（英語：Message-Digest Algorithm 5，縮寫為MD5），是當前電腦領域用於確保資訊傳輸完整一致而廣泛使用的雜湊演算法之一',
+        '81a1472ebdeb09406a783d607ff49ee2fde3e9f44ac1cd158ad8d6ad3c4e69fa': '訊息摘要演算法第五版（英語：Message-Digest Algorithm 5，縮寫為MD5），是當前電腦領域用於確保資訊傳輸完整一致而廣泛使用的雜湊演算法之一（又譯雜湊演算法、摘要演算法等），主流程式語言普遍已有MD5的實作。'
+      },
+      'special length': {
+        '5e6b963e2b6444dab8544beab8532850cef2a9d143872a6a5384abe37e61b3db': '0123456780123456780123456780123456780123456780123456780',
+        '85d240a4a03a0710423fc4f701da51e8785c9eaa96d718ab1c7991d6afd60d62': '01234567801234567801234567801234567801234567801234567801',
+        'c3ee464d5620eb2dde3dfda4c7955dbd9e9e2e9b113c13983fc67b0dfd892a53': '0123456780123456780123456780123456780123456780123456780123456780',
+        '74b51c6911f9a8b5e7c499effe7604e43b672166818873c27752c248de434841': '01234567801234567801234567801234567801234567801234567801234567801234567',
+        '6fba9e623ae6abf028a1b195748814aa95eebfb22e3ec5e15d2444cd6c48186a': '012345678012345678012345678012345678012345678012345678012345678012345678'
+      },
+      'Array': {
+        'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855': [],
+        '182889f925ae4e5cc37118ded6ed87f7bdc7cab5ec5e78faef2e50048999473f': [211, 212],
+        'd7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592': [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],
+        '74b51c6911f9a8b5e7c499effe7604e43b672166818873c27752c248de434841': [48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55]
+      }
+    },
+    sha224: {
+      'ascii': {
+        'd14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f': '',
+        '730e109bd7a8a32b1cb9d9a09aa2325d2430587ddbc0c38bad911525': 'The quick brown fox jumps over the lazy dog',
+        '619cba8e8e05826e9b8c519c0a5c68f4fb653e8a3d8aa04bb2c8cd4c': 'The quick brown fox jumps over the lazy dog.'
+      },
+      'ascii more than 64 bytes': {
+        '4d97e15967391d2e846ea7d21bb480efadbae5868b731e7cc6267006': 'The MD5 message-digest algorithm is a widely used cryptographic hash function producing a 128-bit (16-byte) hash value, typically expressed in text format as a 32 digit hexadecimal number. MD5 has been utilized in a wide variety of cryptographic applications, and is also commonly used to verify data integrity.'
+      },
+      'UTF8': {
+        'dfbab71afdf54388af4d55f8bd3de8c9b15e0eb916bf9125f4a959d4': '中文',
+        'd12841cafd89c534924a839e62bf35a2b5f3717b7802eb19bd8d8e15': 'aécio',
+        'eaa0129b5509f5701db218fb7076b282e4409da52d06363aa3bdd63d': '𠜎',
+        'b19e948e39752eb064452abbaecac72e17ce2a028d640a8864e92c36': 'Tehtäväsi on muotoilla teksti, jossa käyttäjälle suositellaan hänen henkilökohtaisiin tietoihinsa perustuen avioehdon tekemistä. Suosittelemme nimenomaan tätä tuotetta käyttäjän henkilökohtaisista tiedoista johtuen. Tuottamasi tekstin tulee olla lyhyt, persoonallinen, ymmärrettävä ja todenmukainen. Suositus perustuu seuraaviin seikkoihin:\n\nSeikka 0: Avioehdon tekeminen on verohyötyjen vuoksi suositeltavaa, koska olet ilmaissut että haluat kuoleman tapauksessa turvata ensisijaisesti aviopuolisosi asemaa (ennemmin kuin lasten asemaa). Avioehdolla voit määrätä, että puolet kuolleen puolison omaisuudesta siirtyy verovapaasti leskelle.\n\nVoit halutessasi hyödyntää seuraavia tietoja tekstin muotoilussa persoonallisemmaksi: Käyttäjällä on kumppani nimeltä PARTNER_NAME. Käyttäjällä on suurperhe. Käyttäjällä on lapsiperhe.\n\nPuhuttele käyttäjää siihen sävyyn että tiedät jo mitä käyttäjä haluaa, koska hän on kertonut toiveistaan, ja niiden perusteella tehty suositus on ilmiselvä. Joten älä käytä epävarmoja ilmaisuja kuten "halutessasi", vaan kirjoita itsevarmoilla ilmaisuilla kuten "koska haluat". Älä tee oletuksia käyttäjän sukupuolesta, emme tiedä onko hän mies vai nainen. Älä käytä sanaa jälkikasvu, puhu ennemmin lapsesta tai lapsista riippuen onko lapsia yksi vai useampia. Älä puhuttele käyttäjää ensimmäisessä persoonassa, käytä ennemmin passiivimuotoa. Tekstin sävyn tulisi olla neutraalin asiallinen, ei melodramaattinen eikä leikkisä. Pysy totuudessa, älä keksi uusia seikkoja yllä listattujen lisäksi. Viittaa ihmisiin nimillä silloin kun se on mahdollista. Tekstin tulisi olla vain muutaman lauseen mittainen. Älä siis kirjoita pitkiä selityksiä äläkä kirjoita listoja. Tiivistä oleellinen tieto lyhyeksi ja persoonalliseksi tekstiksi.'
+      },
+      'UTF8 more than 64 bytes': {
+        '0dda421f3f81272418e1313673e9d74b7f2d04efc9c52c69458e12c3': '訊息摘要演算法第五版（英語：Message-Digest Algorithm 5，縮寫為MD5），是當前電腦領域用於確保資訊傳輸完整一致而廣泛使用的雜湊演算法之一',
+        'a8cb74a54e6dc6ab6110db3915ba08ffe5e1abafaea78538fa12a626': '訊息摘要演算法第五版（英語：Message-Digest Algorithm 5，縮寫為MD5），是當前電腦領域用於確保資訊傳輸完整一致而廣泛使用的雜湊演算法之一（又譯雜湊演算法、摘要演算法等），主流程式語言普遍已有MD5的實作。'
+      },
+      'special length': {
+        'bc4a354d66f3cff4bc6dd6a88fbb0435cede7fd5fe94da0760cb1924': '0123456780123456780123456780123456780123456780123456780',
+        '2f148f757d1295784a7c69bf328b8bf827a536669e132234cd6f50e7': '01234567801234567801234567801234567801234567801234567801',
+        '496275a96bf41aa27ce89c3ae0fc63c3a3eab063887a8ea075bd091b': '0123456780123456780123456780123456780123456780123456780123456780',
+        '16ee1b101fe0e0d8dd156d598931ec19d75b0f8dc0a0455733c168c8': '01234567801234567801234567801234567801234567801234567801234567801234567',
+        '04c7a30079c640e440d884cdf0d7ab04fd05501d4498cb21be29ca1f': '012345678012345678012345678012345678012345678012345678012345678012345678'
+      },
+      'Array': {
+        'd14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f': [],
+        '730e109bd7a8a32b1cb9d9a09aa2325d2430587ddbc0c38bad911525': [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],
+        '16ee1b101fe0e0d8dd156d598931ec19d75b0f8dc0a0455733c168c8': [48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55]
+      }
+    }
+  };

-    context('when UTF8', function () {
-      context('and less than 64 bytes', function () {
-        it('should be equal', function () {
-          expect(sha256('中文')).to.be('72726d8818f693066ceb69afa364218b692e62ea92b385782363780f47529c21');
-          expect(sha256('aécio')).to.be('53196d1acfce0c4b264e01e8018c989d571351f59e33f055f76ff15b4f0516c6');
-          expect(sha256('𠜎')).to.be('8d10a48685dbc34484696de7ea7434d80a54c1d60100530faccf697463ef19c9');
-        });
-      });
+  if (!(typeof JS_SHA256_NO_ARRAY_BUFFER === 'boolean' && JS_SHA256_NO_ARRAY_BUFFER)) {
+    testCases.sha256.Uint8Array = {
+      '182889f925ae4e5cc37118ded6ed87f7bdc7cab5ec5e78faef2e50048999473f': new Uint8Array([211, 212]),
+      'd7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592': 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.sha256.Int8Array = {
+      'd7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592': new Int8Array([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.sha256.ArrayBuffer = {
+      'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855': new ArrayBuffer(0),
+      '6e340b9cffb37a989ca544e6bb780a2c78901d3fb33738768511a30617afa01d': new ArrayBuffer(1)
+    };
+    testCases.sha224.Uint8Array = {
+      'e17541396a3ecd1cd5a2b968b84e597e8eae3b0ea3127963bf48dd3b': new Uint8Array([211, 212]),
+      '730e109bd7a8a32b1cb9d9a09aa2325d2430587ddbc0c38bad911525': 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.sha224.Int8Array = {
+      '730e109bd7a8a32b1cb9d9a09aa2325d2430587ddbc0c38bad911525': new Int8Array([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.sha224.ArrayBuffer = {
+      'd14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f': new ArrayBuffer(0),
+      'fff9292b4201617bdc4d3053fce02734166a683d7d858a7f5f59b073': new ArrayBuffer(1),
+    };
+  }

-      context('and more than 64 bytes', function () {
-        it('should be equal', function () {
-          expect(sha256('訊息摘要演算法第五版（英語：Message-Digest Algorithm 5，縮寫為MD5），是當前電腦領域用於確保資訊傳輸完整一致而廣泛使用的雜湊演算法之一')).to.be('d691014feebf35b3500ef6f6738d0094cac63628a7a018a980a40292a77703d1');
-          expect(sha256('訊息摘要演算法第五版（英語：Message-Digest Algorithm 5，縮寫為MD5），是當前電腦領域用於確保資訊傳輸完整一致而廣泛使用的雜湊演算法之一（又譯雜湊演算法、摘要演算法等），主流程式語言普遍已有MD5的實作。')).to.be('81a1472ebdeb09406a783d607ff49ee2fde3e9f44ac1cd158ad8d6ad3c4e69fa');
-        });
-      });
-    });
+  if (typeof BUFFER === 'boolean' && BUFFER) {
+    testCases.sha256.Buffer = {
+      'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855': Buffer.from([]),
+      'd7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592': Buffer.from(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.sha224.Buffer = {
+      'd14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f': Buffer.from([]),
+      '730e109bd7a8a32b1cb9d9a09aa2325d2430587ddbc0c38bad911525': Buffer.from(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]))
+    };
+  }

-    context('when special length', function () {
-      it('should be equal', function () {
-        expect(sha256('0123456780123456780123456780123456780123456780123456780')).to.be('5e6b963e2b6444dab8544beab8532850cef2a9d143872a6a5384abe37e61b3db');
-        expect(sha256('01234567801234567801234567801234567801234567801234567801')).to.be('85d240a4a03a0710423fc4f701da51e8785c9eaa96d718ab1c7991d6afd60d62');
-        expect(sha256('0123456780123456780123456780123456780123456780123456780123456780')).to.be('c3ee464d5620eb2dde3dfda4c7955dbd9e9e2e9b113c13983fc67b0dfd892a53');
-        expect(sha256('01234567801234567801234567801234567801234567801234567801234567801234567')).to.be('74b51c6911f9a8b5e7c499effe7604e43b672166818873c27752c248de434841');
-        expect(sha256('012345678012345678012345678012345678012345678012345678012345678012345678')).to.be('6fba9e623ae6abf028a1b195748814aa95eebfb22e3ec5e15d2444cd6c48186a');
-      });
-    });
+  var errorTestCases = [null, undefined, { length: 0 }, 0, 1, false, true, NaN, Infinity, function () {}];

-    context('when Array', function () {
-      it('should be equal', function () {
-        expect(sha256([])).to.be('e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855');
-        expect(sha256([211, 212])).to.be('182889f925ae4e5cc37118ded6ed87f7bdc7cab5ec5e78faef2e50048999473f');
-        expect(sha256([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('d7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592');
-        expect(sha256([48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55, 56, 48, 49, 50, 51, 52, 53, 54, 55])).to.be('74b51c6911f9a8b5e7c499effe7604e43b672166818873c27752c248de434841');
-      });
-    });
+  function runTestCases(name, algorithm) {
+    var methods = [
+      {
+        name: name,
+        call: algorithm,
+      },
+      {
+        name: name + '.hex',
+        call: algorithm.hex
+      },
+      {
+        name: name + '.array',
+        call: function (message) {
+          return algorithm.array(message).toHexString();
+        }
+      },
+      {
+        name: name + '.digest',
+        call: function (message) {
+          return algorithm.digest(message).toHexString();
+        }
+      },
+      {
+        name: name + '.arrayBuffer',
+        call: function (message) {
+          return algorithm.arrayBuffer(message).toHexString();
+        }
+      }
+    ];

-    context('when Uint8Array', function () {
-      it('should be equal', function () {
-        expect(sha256(new Uint8Array([]))).to.be('e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855');
-        expect(sha256(new Uint8Array([211, 212]))).to.be('182889f925ae4e5cc37118ded6ed87f7bdc7cab5ec5e78faef2e50048999473f');
-      });
-    });
+    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();
+        }
+      }
+    ];

-    context('when ArrayBuffer', function () {
+    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(sha256(new ArrayBuffer(0))).to.be('e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855');
-      });
+                      expect(method.call(message)).to.be(hash);
                    });
+                  })(testCase[hash], hash);
+                }
              });
-
-  describe('sha224', function () {
-    context('when ascii', function () {
-      context('and less than 64 bytes', function () {
-        it('should be equal', function () {
-          expect(sha224('')).to.be('d14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f');
-          expect(sha224('The quick brown fox jumps over the lazy dog')).to.be('730e109bd7a8a32b1cb9d9a09aa2325d2430587ddbc0c38bad911525');
-          expect(sha224('The quick brown fox jumps over the lazy dog.')).to.be('619cba8e8e05826e9b8c519c0a5c68f4fb653e8a3d8aa04bb2c8cd4c');
+            })(testCaseName);
+          }
        });
      });

-      context('and more than 64 bytes', function () {
+      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(sha224('The MD5 message-digest algorithm is a widely used cryptographic hash function producing a 128-bit (16-byte) hash value, typically expressed in text format as a 32 digit hexadecimal number. MD5 has been utilized in a wide variety of cryptographic applications, and is also commonly used to verify data integrity.')).to.be('4d97e15967391d2e846ea7d21bb480efadbae5868b731e7cc6267006');
+                      expect(method.call(message)).to.be(hash);
                    });
+                  })(testCase[hash], hash);
+                }
              });
-    });
-
-    context('when UTF8', function () {
-      context('and less than 64 bytes', function () {
-        it('should be equal', function () {
-          expect(sha224('中文')).to.be('dfbab71afdf54388af4d55f8bd3de8c9b15e0eb916bf9125f4a959d4');
-          expect(sha224('aécio')).to.be('d12841cafd89c534924a839e62bf35a2b5f3717b7802eb19bd8d8e15');
-          expect(sha224('𠜎')).to.be('eaa0129b5509f5701db218fb7076b282e4409da52d06363aa3bdd63d');
+            })(testCaseName);
+          }
        });
      });

-      context('and more than 64 bytes', function () {
-        it('should be equal', function () {
-          expect(sha224('訊息摘要演算法第五版（英語：Message-Digest Algorithm 5，縮寫為MD5），是當前電腦領域用於確保資訊傳輸完整一致而廣泛使用的雜湊演算法之一')).to.be('0dda421f3f81272418e1313673e9d74b7f2d04efc9c52c69458e12c3');
-          expect(sha224('訊息摘要演算法第五版（英語：Message-Digest Algorithm 5，縮寫為MD5），是當前電腦領域用於確保資訊傳輸完整一致而廣泛使用的雜湊演算法之一（又譯雜湊演算法、摘要演算法等），主流程式語言普遍已有MD5的實作。')).to.be('a8cb74a54e6dc6ab6110db3915ba08ffe5e1abafaea78538fa12a626');
+      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/);
            });
          });
        });

-    context('when special length', function () {
-      it('should be equal', function () {
-        expect(sha224('0123456780123456780123456780123456780123456780123456780')).to.be('bc4a354d66f3cff4bc6dd6a88fbb0435cede7fd5fe94da0760cb1924');
-        expect(sha224('01234567801234567801234567801234567801234567801234567801')).to.be('2f148f757d1295784a7c69bf328b8bf827a536669e132234cd6f50e7');
-        expect(sha224('0123456780123456780123456780123456780123456780123456780123456780')).to.be('496275a96bf41aa27ce89c3ae0fc63c3a3eab063887a8ea075bd091b');
-        expect(sha224('01234567801234567801234567801234567801234567801234567801234567801234567')).to.be('16ee1b101fe0e0d8dd156d598931ec19d75b0f8dc0a0455733c168c8');
-        expect(sha224('012345678012345678012345678012345678012345678012345678012345678012345678')).to.be('04c7a30079c640e440d884cdf0d7ab04fd05501d4498cb21be29ca1f');
+        context('when large size', function () {
+          var hash = algorithm.create();
+          hash.bytes = 4294967295;
+          hash.update('any');
+          expect(hash.hBytes).to.be(1);
        });
      });
    });
+  }
+
+  runTestCases('sha256', sha256);
+  runTestCases('sha224', sha224);
 })(sha256, sha224);
--- a/tests/worker-test.js
+++ b/tests/worker-test.js
@ -0,0 +1,24 @@
+(function (Worker, WORKER, SOURCE) {
+  var cases = {
+    'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855': '',
+    'd7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592': 'The quick brown fox jumps over the lazy dog',
+    'ef537f25c895bfa782526529a9b63d97aa631564d5d789c2b765448c8635fb6c': 'The quick brown fox jumps over the lazy dog.'
+  };
+
+  describe('#sha256', 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);
+          if (worker.terminate) {
+            worker.terminate();
+          }
+          done();
+        };
+        worker.postMessage(SOURCE);
+        worker.postMessage(cases[hash]);
+      });
+    });
+  });
+})(Worker, WORKER, SOURCE);
--- a/tests/worker.html
+++ b/tests/worker.html
@ -0,0 +1,26 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <title>SHA256</title>
+  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/mocha/2.1.0/mocha.min.css">
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/mocha/2.1.0/mocha.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/expect.js/0.2.0/expect.min.js"></script>
+  <script src="../src/sha256.js"></script>
+</head>
+<body>
+  <div id="mocha"></div>
+  <script>
+    WORKER = 'worker.js';
+    SOURCE = '../src/sha256.js';
+    mocha.setup('bdd');
+  </script>
+  <script src="worker-test.js"></script>
+  <script>
+    mocha.checkLeaks();
+    mocha.run();
+  </script>
+  <script>
+  </script>
+</body>
+</html>
--- a/tests/worker.js
+++ b/tests/worker.js
@ -0,0 +1,12 @@
+var imported = false;
+onmessage = function(e) {
+  if (imported) {
+    postMessage(sha256(e.data));
+    if (typeof exports !== 'undefined') {
+      imported = false;
+    }
+  } else {
+    imported = true;
+    importScripts(e.data);
+  }
+}
Author	SHA1	Message	Date
Yi-Cyuan Chen	138e2e169b	uncomment test	2 years ago
Yi-Cyuan Chen	dbb7a10027	### Fixed - Generates incorrect hash in some cases #43 - dependencies and security issues. #41	2 years ago
dependabot[bot]	250566e984	Bump @babel/traverse from 7.21.2 to 7.23.2 (#41 ) Bumps [@babel/traverse](https://github.com/babel/babel/tree/HEAD/packages/babel-traverse) from 7.21.2 to 7.23.2. - [Release notes](https://github.com/babel/babel/releases) - [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md) - [Commits](https://github.com/babel/babel/commits/v7.23.2/packages/babel-traverse) --- updated-dependencies: - dependency-name: "@babel/traverse" dependency-type: indirect ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2 years ago
Yi-Cyuan Chen	dc41862e53	add benchmark	2 years ago
Yi-Cyuan Chen	c31830ad54	## v0.10.1 / 2023-08-31 ### Added - Disable webpack polyfill.	2 years ago
Yi-Cyuan Chen	f490ee426a	bump bower version	2 years ago
Yi-Cyuan Chen	bb8ae3a623	## v0.10.0 / 2023-08-30 ### Fixed - Chrome bug by workaround. #40 - deprecated `new Buffer`, replace with `Buffer.from`. #34 - dependencies and security issues. #32, #36 ### Changed - TypeScript interface, secretKey can be bytes like message. #23, #25 - remove `eval` and use `require` directly. #18, #26	2 years ago
dependabot[bot]	16b101f040	Bump minimist, mocha and nyc (#36 ) Removes [minimist](https://github.com/minimistjs/minimist). It's no longer used after updating ancestor dependencies [minimist](https://github.com/minimistjs/minimist), [mocha](https://github.com/mochajs/mocha) and [nyc](https://github.com/istanbuljs/nyc). These dependencies need to be updated together. Removes `minimist` Updates `mocha` from 2.3.4 to 10.2.0 - [Release notes](https://github.com/mochajs/mocha/releases) - [Changelog](https://github.com/mochajs/mocha/blob/master/CHANGELOG.md) - [Commits](https://github.com/mochajs/mocha/compare/2.3.4...v10.2.0) Updates `nyc` from 11.3.0 to 15.1.0 - [Release notes](https://github.com/istanbuljs/nyc/releases) - [Changelog](https://github.com/istanbuljs/nyc/blob/master/CHANGELOG.md) - [Commits](https://github.com/istanbuljs/nyc/compare/v11.3.0...v15.1.0) --- updated-dependencies: - dependency-name: minimist dependency-type: indirect - dependency-name: mocha dependency-type: direct:development - dependency-name: nyc dependency-type: direct:development ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2 years ago
Yi-Cyuan Chen	189bb9b037	Fixed - incorrect result when first bit is 1 of bytes. Changed - throw error by Error oject. #13 Added - TypeScript interfaces. #12	8 years ago
Oleg	e35c679c2b	Throw Errors to improve error reporting (#13 )	8 years ago
shiyuesong	bf155ab82f	Added "hmac" to interface Hash. (#12 )	8 years ago
Yi-Cyuan Chen	68ffecdc6e	update README and travis config	8 years ago
Yi-Cyuan Chen	3204c3743e	update coverage library	8 years ago
Yi-Cyuan Chen	4e5354859f	Added - support for web worker. - typescript types. #10 Changed - prevent webpack to require dependencies.	8 years ago
Yi-Cyuan Chen	cf975dfa0c	Improved performance of hBytes increment.	8 years ago
Yi-Cyuan Chen	77efe9529c	Fixed incorrect result when file size >= 512M.	8 years ago
Chen, Yi-Cyuan	ee3b3869bc	1. Added HMAC feature. 2. Changed throw error if input type is incorrect.	8 years ago
Chen, Yi-Cyuan	b3e7b83e39	update CHANGELOG	9 years ago
Chen, Yi-Cyuan	bae387d0b2	Added streaming support #6	9 years ago