1. Added AMD support.

2. Fixed ArrayBuffer dosen't work in Webpack.

.covignore

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

.gitignore

@@ -1,2 +1,2 @@
-node_modules/
+/node_modules/
-covreporter
+/covreporter/

.npmignore

@@ -0,0 +1 @@
+covreporter

.travis.yml

@@ -1,15 +1,12 @@
 language: node_js
 node_js:
-  - "0.11"
+  - "0.12.15"
-  - "0.10"
+  - "4.5"
-  - "0.8"
+  - "6.5.0"
-install:
+before_install:
-  - npm install mocha -g
+  - npm install coveralls
-  - npm install coveralls -g
+  - npm install mocha-lcov-reporter
-  - npm install mocha-lcov-reporter -g
+script: npm run-script coveralls
-  - npm install
-script:
-  - npm run-script coveralls
 branches:
   only:
     - master

CHANGELOG.md

@@ -1,22 +1,67 @@
-# v0.1.4 / 2015-01-24
+# Change Log
 
-* Improve performance.
+## v0.4.0 / 2017-01-23
+### Added
+- AMD support.
+### Fixed
+- ArrayBuffer dosen't work in Webpack.
 
-# v0.1.3 / 2015-01-09
+## v0.3.2 / 2016-09-12
+### Added
+- CommonJS detection.
 
-* Improve performance.
+## v0.3.1 / 2016-09-08
+### Added
+- some files to npm package.
+### Fixed
+- coding style.
 
-# v0.1.2 / 2015-01-06
+## v0.3.0 / 2015-05-23
+### Added
+- support for ArrayBuffer input.
 
-* Add bower package.
+## v0.2.3 / 2015-02-11
-* Fixed JSHint warnings.
+### Added
-* Add travis.
+- support for byte array input.
-* Add coveralls.
 
-# v0.1.1 / 2014-07-27
+## v0.2.2 / 2015-02-10
+### Improved
+- performance.
 
-* Fixed accents bug
+## v0.2.1 / 2015-02-05
+### Fixed
+- special length bug.
+### Added
+- test cases.
 
-# v0.1.0 / 2014-01-05
+## v0.2.0 / 2015-02-03
+### Removed
+- ascii parameter.
+### Improved
+- performance.
+### Added
+- test cases.
 
-* Initial release
+## v0.1.4 / 2015-01-24
+### Improved
+- performance.
+
+## v0.1.3 / 2015-01-09
+### Improved
+- performance.
+
+## v0.1.2 / 2015-01-06
+### Added
+- bower package.
+- travis.
+- coveralls.
+### Fixed
+- JSHint warnings.
+
+## v0.1.1 / 2014-07-27
+### Fixed
+- accents bug.
+
+## v0.1.0 / 2014-01-05
+### Added
+- initial release.

LICENSE.txt

@@ -1,4 +1,6 @@
-Copyright 2014-2015 emn178@gmail.com
+Copyright (c) 2014-2017 Chen, Yi-Cyuan
+
+MIT License
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the

README.md

@@ -1,6 +1,7 @@
 # js-sha256
-[![Build Status](https://api.travis-ci.org/emn178/js-sha256.png?branch=master)](https://travis-ci.org/emn178/js-sha256?branch=master)
+[![Build Status](https://travis-ci.org/emn178/js-sha256.svg?branch=master)](https://travis-ci.org/emn178/js-sha256)
-[![Build Status](https://coveralls.io/repos/emn178/js-sha256/badge.png?branch=master)](https://coveralls.io/r/emn178/js-sha256?branch=master)  
+[![Coverage Status](https://coveralls.io/repos/emn178/js-sha256/badge.svg?branch=master)](https://coveralls.io/r/emn178/js-sha256?branch=master)
+[![CDNJS](https://img.shields.io/cdnjs/v/js-sha256.svg)](https://cdnjs.com/libraries/js-sha256/)  
 [![NPM](https://nodei.co/npm/js-sha256.png?stars&downloads)](https://nodei.co/npm/js-sha256/)  
 A simple SHA-256 / SHA-224 hash function for JavaScript supports UTF-8 encoding.
 
@@ -37,41 +38,15 @@ sha256 = require('js-sha256').sha256;
 sha224 = require('js-sha256').sha224;
 ```
 
-### Methods
-
-#### sha256(str, asciiOnly)
-
-Hash string to sha256, set asciiOnly to true for better performace if you ensure input is ascii.
-
-##### *str: `String`*
-
-String to hash.
-
-##### *asciiOnly: `Boolean` (default: `false`)*
-
-Specify the string encoding is ASCII.
-
-#### sha224(str, asciiOnly)
-
-Hash string to sha224, set asciiOnly to true for better performace if you ensure input is ascii.
-
-##### *str: `String`*
-
-String to hash.
-
-##### *asciiOnly: `Boolean` (default: `false`)*
-
-Specify the string encoding is ASCII.
-
 ## Example
 Code
 ```JavaScript
 sha256('');
-sha256('The quick brown fox jumps over the lazy dog', true);
+sha256('The quick brown fox jumps over the lazy dog');
-sha256('The quick brown fox jumps over the lazy dog.', true);
+sha256('The quick brown fox jumps over the lazy dog.');
 sha224('');
-sha224('The quick brown fox jumps over the lazy dog', true);
+sha224('The quick brown fox jumps over the lazy dog');
-sha224('The quick brown fox jumps over the lazy dog.', true);
+sha224('The quick brown fox jumps over the lazy dog.');
 ```
 Output
 
@@ -94,44 +69,21 @@ Output
     72726d8818f693066ceb69afa364218b692e62ea92b385782363780f47529c21
     dfbab71afdf54388af4d55f8bd3de8c9b15e0eb916bf9125f4a959d4
 
-## Benchmark
+It also supports byte `Array`, `Uint8Array`, `ArrayBuffer` input:
-[UTF8](http://jsperf.com/sha256/64)  
-[ASCII](http://jsperf.com/sha256-ascii/)
-
-## Extensions
-### jQuery
-If you prefer jQuery style, you can add following code to add a jQuery extension.
 
 Code
 ```JavaScript
-jQuery.sha256 = sha256
+sha256([]);
-jQuery.sha224 = sha224
+sha256(new Uint8Array([211, 212]));
 ```
-And then you could use like this:
+Output
-```JavaScript
+
-$.sha256('message');
+    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
-$.sha224('message');
+    182889f925ae4e5cc37118ded6ed87f7bdc7cab5ec5e78faef2e50048999473f
-```
-### Prototype
-If you prefer prototype style, you can add following code to add a prototype extension.
 
-Code
-```JavaScript
-String.prototype.sha256 = function() {
-  return sha256(this);
-};
-String.prototype.sha224 = function() {
-  return sha224(this);
-};
-```
-And then you could use like this:
-```JavaScript
-'message'.sha256();
-'message'.sha224();
-```
 ## License
 The project is released under the [MIT license](http://www.opensource.org/licenses/MIT).
 
 ## Contact
 The project's website is located at https://github.com/emn178/js-sha256  
-Author: emn178@gmail.com
+Author: Chen, Yi-Cyuan (emn178@gmail.com)

bower.json

@@ -1,7 +1,7 @@
 {
   "name": "js-sha256",
-  "version": "0.1.4",
+  "version": "0.4.0",
-  "main": ["build/sha256.min.js"],
+  "main": ["src/sha256.js"],
   "ignore": [
     "samples",
     "tests"

build/sha256.min.js

@@ -1,7 +1,9 @@
-(function(E,J){var G="0123456789abcdef".split(""),F=[1116352408,1899447441,3049323471,3921009573,961987163,1508970993,2453635748,2870763221,3624381080,310598401,607225278,1426881987,1925078388,2162078206,2614888103,3248222580,3835390401,4022224774,264347078,604807628,770255983,1249150122,1555081692,1996064986,2554220882,2821834349,2952996808,3210313671,3336571891,3584528711,113926993,338241895,666307205,773529912,1294757372,1396182291,1695183700,1986661051,2177026350,2456956037,2730485921,2820302411,
+/**
-3259730800,3345764771,3516065817,3600352804,4094571909,275423344,430227734,506948616,659060556,883997877,958139571,1322822218,1537002063,1747873779,1955562222,2024104815,2227730452,2361852424,2428436474,2756734187,3204031479,3329325298],z=function(e,x){return H(e,!0,x)},I=function(e,x){return H(e,!1,x)},H=function(e,x,f){x===J&&(x=!0);var k,g,l,a,B,C,D;if(!f&&/[^\x00-\x7F]/.test(e)){g=[];for(l=f=0;l<e.length;l++)a=e.charCodeAt(l),128>a?g[f++]=a:(2048>a?g[f++]=192|a>>6:(55296>a||57344<=a?g[f++]=224|
+ * [js-sha256]{@link https://github.com/emn178/js-sha256}
-a>>12:(a=65536+((a&1023)<<10|e.charCodeAt(++l)&1023),g[f++]=240|a>>18,g[f++]=128|a>>12&63),g[f++]=128|a>>6&63),g[f++]=128|a&63);e=g.length;f=(e+8>>6)+1;l=[];for(a=0;a<f;++a)l[a]=k=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0];for(a=0;a<e;++a)k=l[a>>6],k[(a&63)>>2]|=g[a]<<(3-(a&3)<<3);k[(a&63)>>2]|=128<<(3-(a&3)<<3);k[15]=e<<3}else{k=e.length;f=(k+8>>6)+1;l=[];for(a=0;a<f;++a)l[a]=g=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0];for(a=0;a<k;++a)g=l[a>>6],g[(a&63)>>2]|=e.charCodeAt(a)<<(3-(a&3)<<3);g[(a&63)>>2]|=128<<(3-(a&
+ *
-3)<<3);g[15]=k<<3}k=l;x?(g=1779033703,f=3144134277,l=1013904242,a=2773480762,B=1359893119,C=2600822924,D=528734635,e=1541459225):(g=3238371032,f=914150663,l=812702999,a=4144912697,B=4290775857,C=1750603025,D=1694076839,e=3204075428);for(var z=0,E=k.length;z<E;++z){var y=k[z],m,b,h,c,d,n=g,p=f,q=l,r=a,t=B,u=C,v=D,w=e;for(h=16;64>h;++h)c=b=y[h-15],c=c>>>7|c<<25,b=b>>>18|b<<14,m=c^b^y[h-15]>>>3,c=b=y[h-2],c=c>>>17|c<<15,b=b>>>19|b<<13,b=c^b^y[h-2]>>>10,y[h]=y[h-16]+m+y[h-7]+b<<0;for(h=0;64>h;h+=4)c=
+ * @version 0.4.0
-n>>>2|n<<30,b=n>>>13|n<<19,d=n>>>22|n<<10,m=c^b^d,c=t>>>6|t<<26,b=t>>>11|t<<21,d=t>>>25|t<<7,b=c^b^d,c=n&p^n&q^p&q,d=t&u^~t&v,b=w+b+d+F[h+0]+y[h+0]<<0,m=m+c<<0,w=r+b<<0,r=b+m<<0,c=r>>>2|r<<30,b=r>>>13|r<<19,d=r>>>22|r<<10,m=c^b^d,c=w>>>6|w<<26,b=w>>>11|w<<21,d=w>>>25|w<<7,b=c^b^d,c=r&n^r&p^n&p,d=w&t^~w&u,b=v+b+d+F[h+1]+y[h+1]<<0,m=m+c<<0,v=q+b<<0,q=b+m<<0,c=q>>>2|q<<30,b=q>>>13|q<<19,d=q>>>22|q<<10,m=c^b^d,c=v>>>6|v<<26,b=v>>>11|v<<21,d=v>>>25|v<<7,b=c^b^d,c=q&r^q&n^r&n,d=v&w^~v&t,b=u+b+d+F[h+2]+
+ * @author Chen, Yi-Cyuan [emn178@gmail.com]
-y[h+2]<<0,m=m+c<<0,u=p+b<<0,p=b+m<<0,c=p>>>2|p<<30,b=p>>>13|p<<19,d=p>>>22|p<<10,m=c^b^d,c=u>>>6|u<<26,b=u>>>11|u<<21,d=u>>>25|u<<7,b=c^b^d,c=p&q^p&r^q&r,d=u&v^~u&w,b=t+b+d+F[h+3]+y[h+3]<<0,m=m+c<<0,t=n+b<<0,n=b+m<<0;g=g+n<<0;f=f+p<<0;l=l+q<<0;a=a+r<<0;B=B+t<<0;C=C+u<<0;D=D+v<<0;e=e+w<<0}k=A(g)+A(f)+A(l)+A(a)+A(B)+A(C)+A(D);x&&(k+=A(e));return k},A=function(e){for(var x="",f=0;4>f;f++)var k=3-f<<3,x=x+(G[e>>k+4&15]+G[e>>k&15]);return x};"undefined"!=typeof module?(z.sha256=z,z.sha224=I,module.exports=
+ * @copyright Chen, Yi-Cyuan 2014-2017
-z):E&&(E.sha256=z,E.sha224=I)})(this);
+ * @license MIT
+ */
+!function(){"use strict";var e="object"==typeof window?window:{},o=!e.JS_SHA256_NO_NODE_JS&&"object"==typeof process&&process.versions&&process.versions.node;o&&(e=global);var r=!e.JS_SHA256_NO_COMMON_JS&&"object"==typeof module&&module.exports,t="function"==typeof define&&define.amd,n="0123456789abcdef".split(""),s=[-2147483648,8388608,32768,128],f=[24,16,8,0],i=[1116352408,1899447441,3049323471,3921009573,961987163,1508970993,2453635748,2870763221,3624381080,310598401,607225278,1426881987,1925078388,2162078206,2614888103,3248222580,3835390401,4022224774,264347078,604807628,770255983,1249150122,1555081692,1996064986,2554220882,2821834349,2952996808,3210313671,3336571891,3584528711,113926993,338241895,666307205,773529912,1294757372,1396182291,1695183700,1986661051,2177026350,2456956037,2730485921,2820302411,3259730800,3345764771,3516065817,3600352804,4094571909,275423344,430227734,506948616,659060556,883997877,958139571,1322822218,1537002063,1747873779,1955562222,2024104815,2227730452,2361852424,2428436474,2756734187,3204031479,3329325298],a=[],c=function(e){return d(e,!0)},d=function(o,r){var t="string"!=typeof o;t&&o.constructor==e.ArrayBuffer&&(o=new Uint8Array(o));var c,d,u,p,l,h,v,_,y,w,A,S,b,O,m,J,N,g,j,C,x,H,M=!0,B=!1,D=0,E=0,U=0,k=o.length;r?(c=3238371032,d=914150663,u=812702999,p=4144912697,l=4290775857,h=1750603025,v=1694076839,_=3204075428):(c=1779033703,d=3144134277,u=1013904242,p=2773480762,l=1359893119,h=2600822924,v=528734635,_=1541459225),y=0;do{if(a[0]=y,a[16]=a[1]=a[2]=a[3]=a[4]=a[5]=a[6]=a[7]=a[8]=a[9]=a[10]=a[11]=a[12]=a[13]=a[14]=a[15]=0,t)for(A=E;k>D&&64>A;++D)a[A>>2]|=o[D]<<f[3&A++];else for(A=E;k>D&&64>A;++D)w=o.charCodeAt(D),128>w?a[A>>2]|=w<<f[3&A++]:2048>w?(a[A>>2]|=(192|w>>6)<<f[3&A++],a[A>>2]|=(128|63&w)<<f[3&A++]):55296>w||w>=57344?(a[A>>2]|=(224|w>>12)<<f[3&A++],a[A>>2]|=(128|w>>6&63)<<f[3&A++],a[A>>2]|=(128|63&w)<<f[3&A++]):(w=65536+((1023&w)<<10|1023&o.charCodeAt(++D)),a[A>>2]|=(240|w>>18)<<f[3&A++],a[A>>2]|=(128|w>>12&63)<<f[3&A++],a[A>>2]|=(128|w>>6&63)<<f[3&A++],a[A>>2]|=(128|63&w)<<f[3&A++]);U+=A-E,E=A-64,D==k&&(a[A>>2]|=s[3&A],++D),y=a[16],D>k&&56>A&&(a[15]=U<<3,B=!0);var q=c,z=d,F=u,G=p,I=l,K=h,L=v,P=_;for(S=16;64>S;++S)J=a[S-15],b=(J>>>7|J<<25)^(J>>>18|J<<14)^J>>>3,J=a[S-2],O=(J>>>17|J<<15)^(J>>>19|J<<13)^J>>>10,a[S]=a[S-16]+b+a[S-7]+O<<0;for(H=z&F,S=0;64>S;S+=4)M?(r?(j=300032,J=a[0]-1413257819,P=J-150054599<<0,G=J+24177077<<0):(j=704751109,J=a[0]-210244248,P=J-1521486534<<0,G=J+143694565<<0),M=!1):(b=(q>>>2|q<<30)^(q>>>13|q<<19)^(q>>>22|q<<10),O=(I>>>6|I<<26)^(I>>>11|I<<21)^(I>>>25|I<<7),j=q&z,m=j^q&F^H,g=I&K^~I&L,J=P+O+g+i[S]+a[S],N=b+m,P=G+J<<0,G=J+N<<0),b=(G>>>2|G<<30)^(G>>>13|G<<19)^(G>>>22|G<<10),O=(P>>>6|P<<26)^(P>>>11|P<<21)^(P>>>25|P<<7),C=G&q,m=C^G&z^j,g=P&I^~P&K,J=L+O+g+i[S+1]+a[S+1],N=b+m,L=F+J<<0,F=J+N<<0,b=(F>>>2|F<<30)^(F>>>13|F<<19)^(F>>>22|F<<10),O=(L>>>6|L<<26)^(L>>>11|L<<21)^(L>>>25|L<<7),x=F&G,m=x^F&q^C,g=L&P^~L&I,J=K+O+g+i[S+2]+a[S+2],N=b+m,K=z+J<<0,z=J+N<<0,b=(z>>>2|z<<30)^(z>>>13|z<<19)^(z>>>22|z<<10),O=(K>>>6|K<<26)^(K>>>11|K<<21)^(K>>>25|K<<7),H=z&F,m=H^z&G^x,g=K&L^~K&P,J=I+O+g+i[S+3]+a[S+3],N=b+m,I=q+J<<0,q=J+N<<0;c=c+q<<0,d=d+z<<0,u=u+F<<0,p=p+G<<0,l=l+I<<0,h=h+K<<0,v=v+L<<0,_=_+P<<0}while(!B);var Q=n[c>>28&15]+n[c>>24&15]+n[c>>20&15]+n[c>>16&15]+n[c>>12&15]+n[c>>8&15]+n[c>>4&15]+n[15&c]+n[d>>28&15]+n[d>>24&15]+n[d>>20&15]+n[d>>16&15]+n[d>>12&15]+n[d>>8&15]+n[d>>4&15]+n[15&d]+n[u>>28&15]+n[u>>24&15]+n[u>>20&15]+n[u>>16&15]+n[u>>12&15]+n[u>>8&15]+n[u>>4&15]+n[15&u]+n[p>>28&15]+n[p>>24&15]+n[p>>20&15]+n[p>>16&15]+n[p>>12&15]+n[p>>8&15]+n[p>>4&15]+n[15&p]+n[l>>28&15]+n[l>>24&15]+n[l>>20&15]+n[l>>16&15]+n[l>>12&15]+n[l>>8&15]+n[l>>4&15]+n[15&l]+n[h>>28&15]+n[h>>24&15]+n[h>>20&15]+n[h>>16&15]+n[h>>12&15]+n[h>>8&15]+n[h>>4&15]+n[15&h]+n[v>>28&15]+n[v>>24&15]+n[v>>20&15]+n[v>>16&15]+n[v>>12&15]+n[v>>8&15]+n[v>>4&15]+n[15&v];return r||(Q+=n[_>>28&15]+n[_>>24&15]+n[_>>20&15]+n[_>>16&15]+n[_>>12&15]+n[_>>8&15]+n[_>>4&15]+n[15&_]),Q},u=d;u.sha256=d,u.sha224=c,r?module.exports=u:(e.sha256=d,e.sha224=c,t&&define(function(){return u}))}();

package.json

@@ -1,15 +1,19 @@
 {
   "name": "js-sha256",
-  "version": "0.1.4",
+  "version": "0.4.0",
   "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"
+    "jscoverage": "~0.5.9",
+    "mocha": "~2.3.4",
+    "uglifyjs": "~2.4.10"
   },
   "scripts": {
     "test": "mocha tests/node-test.js -r jscoverage",
-    "coveralls": "mocha tests/node-test.js -R mocha-lcov-reporter -r jscoverage | coveralls"
+    "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"
   },
   "repository": {
     "type": "git",
@@ -26,7 +30,7 @@
     "HMAC"
   ],
   "license": "MIT",
-  "author": "emn178 <emn178@gmail.com>",
+  "author": "Chen, Yi-Cyuan <emn178@gmail.com>",
   "homepage": "https://github.com/emn178/js-sha256",
   "bugs": {
     "url": "https://github.com/emn178/js-sha256/issues"

src/sha256.js

@@ -1,26 +1,25 @@
-/*
+/**
- * js-sha256 v0.1.4
+ * [js-sha256]{@link https://github.com/emn178/js-sha256}
- * https://github.com/emn178/js-sha256
  *
- * Copyright 2014-2015, emn178@gmail.com
+ * @version 0.4.0
- *
+ * @author Chen, Yi-Cyuan [emn178@gmail.com]
- * Licensed under the MIT license:
+ * @copyright Chen, Yi-Cyuan 2014-2017
- * http://www.opensource.org/licenses/MIT
+ * @license MIT
  */
-;(function(root, undefined) {
+/*jslint bitwise: true */
+(function () {
   'use strict';
 
-  var NODE_JS = typeof(module) != 'undefined';
+  var root = typeof window === 'object' ? window : {};
-  if(NODE_JS) {
+  var NODE_JS = !root.JS_SHA256_NO_NODE_JS && typeof process == 'object' && process.versions && process.versions.node;
+  if (NODE_JS) {
     root = global;
-    if(root.JS_SHA256_TEST) {
-      root.navigator = { userAgent: 'Firefox'};
-    }
   }
-  var FIREFOX = (root.JS_SHA256_TEST || !NODE_JS) && navigator.userAgent.indexOf('Firefox') != -1;
+  var COMMON_JS = !root.JS_SHA256_NO_COMMON_JS && typeof module === 'object' && module.exports;
+  var AMD = typeof define === 'function' && define.amd;
   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,
           0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
           0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
@@ -30,31 +29,23 @@
           0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
           0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2];
 
-  var sha256 = function(message, asciiOnly) {
+  var blocks = [];
-    return sha2(message, true, asciiOnly);
+
+  var sha224 = function (message) {
+    return sha256(message, true);
   };
 
-  var sha224 = function(message, asciiOnly) {
+  var sha256 = function (message, is224) {
-    return sha2(message, false, asciiOnly);
+    var notString = typeof message != 'string';
-  };
+    if (notString && message.constructor == root.ArrayBuffer) {
-
+      message = new Uint8Array(message);
-  var sha2 = function(message, is256, asciiOnly) {
-    var chunks, h0, h1, h2, h3, h4, h5, h6, h7;
-    if(!asciiOnly && /[^\x00-\x7F]/.test(message)) {
-      chunks = getChunksFromUtf8(message);
-    } else {
-      chunks = getChunksFromAscii(message);
     }
-    if(is256) {
+
-      h0 = 0x6a09e667;
+    var h0, h1, h2, h3, h4, h5, h6, h7, block, code, first = true, end = false,
-      h1 = 0xbb67ae85;
+        i, j, index = 0, start = 0, bytes = 0, length = message.length,
-      h2 = 0x3c6ef372;
+        s0, s1, maj, t1, t2, ch, ab, da, cd, bc;
-      h3 = 0xa54ff53a;
+
-      h4 = 0x510e527f;
+    if (is224) {
-      h5 = 0x9b05688c;
-      h6 = 0x1f83d9ab;
-      h7 = 0x5be0cd19;
-    } else { // 224
       h0 = 0xc1059ed8;
       h1 = 0x367cd507;
       h2 = 0x3070dd17;
@@ -63,85 +54,121 @@
       h5 = 0x68581511;
       h6 = 0x64f98fa7;
       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] =
+      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];
+        }
+      } else {
+        for (i = start; index < length && i < 64; ++index) {
+          code = message.charCodeAt(index);
+          if (code < 0x80) {
+            blocks[i >> 2] |= code << SHIFT[i++ & 3];
+          } else if (code < 0x800) {
+            blocks[i >> 2] |= (0xc0 | (code >> 6)) << SHIFT[i++ & 3];
+            blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
+          } else if (code < 0xd800 || code >= 0xe000) {
+            blocks[i >> 2] |= (0xe0 | (code >> 12)) << SHIFT[i++ & 3];
+            blocks[i >> 2] |= (0x80 | ((code >> 6) & 0x3f)) << SHIFT[i++ & 3];
+            blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
+          } else {
+            code = 0x10000 + (((code & 0x3ff) << 10) | (message.charCodeAt(++index) & 0x3ff));
+            blocks[i >> 2] |= (0xf0 | (code >> 18)) << SHIFT[i++ & 3];
+            blocks[i >> 2] |= (0x80 | ((code >> 12) & 0x3f)) << SHIFT[i++ & 3];
+            blocks[i >> 2] |= (0x80 | ((code >> 6) & 0x3f)) << SHIFT[i++ & 3];
+            blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
+          }
+        }
+      }
+      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;
+      }
 
-    for(var i = 0, length = chunks.length;i < length;++i) {
+      var a = h0, b = h1, c = h2, d = h3, e = h4, f = h5, g = h6, h = h7;
-      var w = chunks[i], s0, s1, j, tmp1, tmp2, tmp3, maj, t1, t2, ch, ab, da, cd, bc,
+      for (j = 16; j < 64; ++j) {
-          a = h0, b = h1, c = h2, d = h3, e = h4, f = h5, g = h6, h = h7;
-
-      for(j = 16;j < 64;++j) {
         // rightrotate
-        tmp1 = tmp2 = w[j - 15];
+        t1 = blocks[j - 15];
-        tmp1 = (tmp1 >>> 7) | (tmp1 << 25);
+        s0 = ((t1 >>> 7) | (t1 << 25)) ^ ((t1 >>> 18) | (t1 << 14)) ^ (t1 >>> 3);
-        tmp2 = (tmp2 >>> 18) | (tmp2 << 14);
+        t1 = blocks[j - 2];
-        s0 = tmp1 ^ tmp2 ^ (w[j - 15] >>> 3);
+        s1 = ((t1 >>> 17) | (t1 << 15)) ^ ((t1 >>> 19) | (t1 << 13)) ^ (t1 >>> 10);
-        tmp1 = tmp2 = w[j - 2];
+        blocks[j] = blocks[j - 16] + s0 + blocks[j - 7] + s1 << 0;
-        tmp1 = (tmp1 >>> 17) | (tmp1 << 15);
-        tmp2 = (tmp2 >>> 19) | (tmp2 << 13);
-        s1 = tmp1 ^ tmp2 ^ (w[j - 2] >>> 10);
-        w[j] = w[j - 16] + s0 + w[j - 7] + s1 << 0;
       }
 
       bc = b & c;
-      for(j = 0;j < 64;j += 4) {
+      for (j = 0; j < 64; j += 4) {
-        tmp1 = (a >>> 2) | (a << 30);
+        if (first) {
-        tmp2 = (a >>> 13) | (a << 19);
+          if (is224) {
-        tmp3 = (a >>> 22) | (a << 10);
+            ab = 300032;
-        s0 = tmp1 ^ tmp2 ^ tmp3;
+            t1 = blocks[0] - 1413257819;
-        tmp1 = (e >>> 6) | (e << 26);
+            h = t1 - 150054599 << 0;
-        tmp2 = (e >>> 11) | (e << 21);
+            d = t1 + 24177077 << 0;
-        tmp3 = (e >>> 25) | (e << 7);
+          } else {
-        s1 = tmp1 ^ tmp2 ^ tmp3;
+            ab = 704751109;
-        ab = a & b;
+            t1 = blocks[0] - 210244248;
-        maj = ab ^ (a & c) ^ bc;
+            h = t1 - 1521486534 << 0;
-        ch = (e & f) ^ (~e & g);
+            d = t1 + 143694565 << 0;
-        t1 = h + s1 + ch + K[j] + w[j] << 0;
+          }
-        t2 = s0 + maj << 0;
+          first = false;
-        h = d + t1 << 0;
+        } else {
-        d = t1 + t2 << 0;
+          s0 = ((a >>> 2) | (a << 30)) ^ ((a >>> 13) | (a << 19)) ^ ((a >>> 22) | (a << 10));
-        tmp1 = (d >>> 2) | (d << 30);
+          s1 = ((e >>> 6) | (e << 26)) ^ ((e >>> 11) | (e << 21)) ^ ((e >>> 25) | (e << 7));
-        tmp2 = (d >>> 13) | (d << 19);
+          ab = a & b;
-        tmp3 = (d >>> 22) | (d << 10);
+          maj = ab ^ (a & c) ^ bc;
-        s0 = tmp1 ^ tmp2 ^ tmp3;
+          ch = (e & f) ^ (~e & g);
-        tmp1 = (h >>> 6) | (h << 26);
+          t1 = h + s1 + ch + K[j] + blocks[j];
-        tmp2 = (h >>> 11) | (h << 21);
+          t2 = s0 + maj;
-        tmp3 = (h >>> 25) | (h << 7);
+          h = d + t1 << 0;
-        s1 = tmp1 ^ tmp2 ^ tmp3;
+          d = t1 + t2 << 0;
+        }
+        s0 = ((d >>> 2) | (d << 30)) ^ ((d >>> 13) | (d << 19)) ^ ((d >>> 22) | (d << 10));
+        s1 = ((h >>> 6) | (h << 26)) ^ ((h >>> 11) | (h << 21)) ^ ((h >>> 25) | (h << 7));
         da = d & a;
         maj = da ^ (d & b) ^ ab;
         ch = (h & e) ^ (~h & f);
-        t1 = g + s1 + ch + K[j + 1] + w[j + 1] << 0;
+        t1 = g + s1 + ch + K[j + 1] + blocks[j + 1];
-        t2 = s0 + maj << 0;
+        t2 = s0 + maj;
         g = c + t1 << 0;
         c = t1 + t2 << 0;
-        tmp1 = (c >>> 2) | (c << 30);
+        s0 = ((c >>> 2) | (c << 30)) ^ ((c >>> 13) | (c << 19)) ^ ((c >>> 22) | (c << 10));
-        tmp2 = (c >>> 13) | (c << 19);
+        s1 = ((g >>> 6) | (g << 26)) ^ ((g >>> 11) | (g << 21)) ^ ((g >>> 25) | (g << 7));
-        tmp3 = (c >>> 22) | (c << 10);
-        s0 = tmp1 ^ tmp2 ^ tmp3;
-        tmp1 = (g >>> 6) | (g << 26);
-        tmp2 = (g >>> 11) | (g << 21);
-        tmp3 = (g >>> 25) | (g << 7);
-        s1 = tmp1 ^ tmp2 ^ tmp3;
         cd = c & d;
         maj = cd ^ (c & a) ^ da;
         ch = (g & h) ^ (~g & e);
-        t1 = f + s1 + ch + K[j + 2] + w[j + 2] << 0;
+        t1 = f + s1 + ch + K[j + 2] + blocks[j + 2];
-        t2 = s0 + maj << 0;
+        t2 = s0 + maj;
         f = b + t1 << 0;
         b = t1 + t2 << 0;
-        tmp1 = (b >>> 2) | (b << 30);
+        s0 = ((b >>> 2) | (b << 30)) ^ ((b >>> 13) | (b << 19)) ^ ((b >>> 22) | (b << 10));
-        tmp2 = (b >>> 13) | (b << 19);
+        s1 = ((f >>> 6) | (f << 26)) ^ ((f >>> 11) | (f << 21)) ^ ((f >>> 25) | (f << 7));
-        tmp3 = (b >>> 22) | (b << 10);
-        s0 = tmp1 ^ tmp2 ^ tmp3;
-        tmp1 = (f >>> 6) | (f << 26);
-        tmp2 = (f >>> 11) | (f << 21);
-        tmp3 = (f >>> 25) | (f << 7);
-        s1 = tmp1 ^ tmp2 ^ tmp3;
         bc = b & c;
         maj = bc ^ (b & d) ^ cd;
         ch = (f & g) ^ (~f & h);
-        t1 = e + s1 + ch + K[j + 3] + w[j + 3] << 0;
+        t1 = e + s1 + ch + K[j + 3] + blocks[j + 3];
-        t2 = s0 + maj << 0;
+        t2 = s0 + maj;
         e = a + t1 << 0;
         a = t1 + t2 << 0;
       }
@@ -154,7 +181,7 @@
       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] +
@@ -184,7 +211,7 @@
               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(is256) {
+    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] +
@@ -192,72 +219,20 @@
     }
     return hex;
   };
-  
-  var getBytesFromUtf8 = function(str) {
-    var bytes = [], index = 0;
-    for (var i = 0;i < str.length; i++) {
-      var c = str.charCodeAt(i);
-      if (c < 0x80) {
-        bytes[index++] = c;
-      } else if (c < 0x800) {
-        bytes[index++] = 0xc0 | (c >> 6);
-        bytes[index++] = 0x80 | (c & 0x3f);
-      } else if (c < 0xd800 || c >= 0xe000) {
-        bytes[index++] = 0xe0 | (c >> 12);
-        bytes[index++] = 0x80 | ((c >> 6) & 0x3f);
-        bytes[index++] = 0x80 | (c & 0x3f);
-      } else {
-        c = 0x10000 + (((c & 0x3ff) << 10) | (str.charCodeAt(++i) & 0x3ff));
-        bytes[index++] = 0xf0 | (c >> 18);
-        bytes[index++] = 0x80 | ((c >> 12) & 0x3f);
-        bytes[index++] = 0x80 | ((c >> 6) & 0x3f);
-        bytes[index++] = 0x80 | (c & 0x3f);
-      }
-    }
-    return bytes;
-  };
 
-  var getChunksFromAscii = function(message) {
+  var exports = sha256;
-    // a block is 32 bits(4 bytes), a chunk is 512 bits(64 bytes)
+  exports.sha256 = sha256;
-    var length = message.length;
+  exports.sha224 = sha224;
-    var chunkCount = ((length + 8) >> 6) + 1;
-    var chunks = [], blocks, i;
-    for(i = 0;i < chunkCount;++i) {
-      chunks[i] = blocks = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
-    }
-    for(i = 0;i < length;++i) {
-      blocks = chunks[i >> 6];
-      blocks[(i & 63) >> 2] |= message.charCodeAt(i) << SHIFT[i & 3];
-    }
-    blocks[(i & 63) >> 2] |= 0x80 << SHIFT[i & 3];
-    blocks[15] = length << 3; // length * 8
-    return chunks;
-  };
 
-  var getChunksFromUtf8 = function(message) {
+  if (COMMON_JS) {
-    // a block is 32 bits(4 bytes), a chunk is 512 bits(64 bytes)
+    module.exports = exports;
-    var bytes = getBytesFromUtf8(message);
+  } else {
-    var length = bytes.length;
-    var chunkCount = ((length + 8) >> 6) + 1;
-    var chunks = [], blocks, i;
-    for(i = 0;i < chunkCount;++i) {
-      chunks[i] = blocks = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
-    }
-    for(i = 0;i < length;++i) {
-      blocks = chunks[i >> 6];
-      blocks[(i & 63) >> 2] |= bytes[i] << SHIFT[i & 3];
-    }
-    blocks[(i & 63) >> 2] |= 0x80 << SHIFT[i & 3];
-    blocks[15] = length << 3; // length * 8
-    return chunks;
-  };
-
-  if(!root.JS_SHA256_TEST && NODE_JS) {
-    sha256.sha256 = sha256;
-    sha256.sha224 = sha224;
-    module.exports = sha256;
-  } else if(root) {
     root.sha256 = sha256;
     root.sha224 = sha224;
+    if (AMD) {
+      define(function () {
+        return exports;
+      });
+    }
   }
-}(this));
+})();

tests/node-test.js

@@ -1,6 +1,7 @@
+// Node.js env
+expect = require('expect.js');
 sha256 = require('../src/sha256.js').sha256;
 sha224 = require('../src/sha256.js').sha224;
-expect = require('expect.js');
 require('./test.js');
 
 delete require.cache[require.resolve('../src/sha256.js')]
@@ -8,7 +9,39 @@ delete require.cache[require.resolve('./test.js')]
 sha256 = null;
 sha224 = null;
 
-JS_SHA256_TEST = true;
+// Webpack browser env
-testName = 'without ArrayBuffer';
+JS_SHA256_NO_NODE_JS = true;
+window = global;
+sha256 = require('../src/sha256.js').sha256;
+sha224 = require('../src/sha256.js').sha224;
+require('./test.js');
+
+delete require.cache[require.resolve('../src/sha256.js')]
+delete require.cache[require.resolve('./test.js')]
+sha256 = null;
+sha224 = null;
+
+// browser env
+JS_SHA256_NO_NODE_JS = true;
+JS_SHA256_NO_COMMON_JS = true;
+window = global;
 require('../src/sha256.js');
 require('./test.js');
+
+delete require.cache[require.resolve('../src/sha256.js')]
+delete require.cache[require.resolve('./test.js')]
+sha256 = null;
+sha224 = null;
+
+// browser AMD
+JS_SHA256_NO_NODE_JS = true;
+JS_SHA256_NO_COMMON_JS = true;
+window = global;
+define = function (func) {
+  sha256 = func();
+  sha224 = sha256.sha224;
+  require('./test.js');
+};
+define.amd = true;
+
+require('../src/sha256.js');

tests/test.js

@@ -1,67 +1,113 @@
-describe('sha256', function() {
+(function (sha256, sha224) {
-  describe('ascii', function() {
+  describe('sha256', function () {
-    describe('less than 64 bytes', function() {
+    context('when ascii', function () {
-      it('should be successful', function() {
+      context('and less than 64 bytes', function () {
-        expect(sha256('')).to.be('e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855');
+        it('should be equal', function () {
-        expect(sha256('The quick brown fox jumps over the lazy dog')).to.be('d7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592');
+          expect(sha256('')).to.be('e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855');
-        expect(sha256('The quick brown fox jumps over the lazy dog.')).to.be('ef537f25c895bfa782526529a9b63d97aa631564d5d789c2b765448c8635fb6c');
+          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');
+        });
+      });
+
+      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');
+        });
       });
     });
 
-    describe('more than 64 bytes', function() {
+    context('when UTF8', function () {
-      it('should be successful', function() {
+      context('and less than 64 bytes', 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');
+        it('should be equal', function () {
+          expect(sha256('中文')).to.be('72726d8818f693066ceb69afa364218b692e62ea92b385782363780f47529c21');
+          expect(sha256('aécio')).to.be('53196d1acfce0c4b264e01e8018c989d571351f59e33f055f76ff15b4f0516c6');
+          expect(sha256('𠜎')).to.be('8d10a48685dbc34484696de7ea7434d80a54c1d60100530faccf697463ef19c9');
+        });
+      });
+
+      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');
+        });
+      });
+    });
+    
+    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');
+      });
+    });
+
+    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');
+      });
+    });
+
+    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');
+      });
+    });
+
+    context('when ArrayBuffer', function () {
+      it('should be equal', function () {
+        expect(sha256(new ArrayBuffer(0))).to.be('e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855');
       });
     });
   });
 
-  describe('UTF8', function() {
+  describe('sha224', function () {
-    describe('less than 64 bytes', function() {
+    context('when ascii', function () {
-      it('should be successful', function() {
+      context('and less than 64 bytes', function () {
-        expect(sha256('中文')).to.be('72726d8818f693066ceb69afa364218b692e62ea92b385782363780f47529c21');
+        it('should be equal', function () {
-        expect(sha256('aécio')).to.be('53196d1acfce0c4b264e01e8018c989d571351f59e33f055f76ff15b4f0516c6');
+          expect(sha224('')).to.be('d14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f');
-        expect(sha256('𠜎')).to.be('8d10a48685dbc34484696de7ea7434d80a54c1d60100530faccf697463ef19c9');
+          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');
+        });
+      });
+
+      context('and more than 64 bytes', function () {
+        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');
+        });
       });
     });
 
-    describe('more than 64 bytes', function() {
+    context('when UTF8', function () {
-      it('should be successful', function() {
+      context('and less than 64 bytes', 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（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');
+        it('should be equal', function () {
+          expect(sha224('中文')).to.be('dfbab71afdf54388af4d55f8bd3de8c9b15e0eb916bf9125f4a959d4');
+          expect(sha224('aécio')).to.be('d12841cafd89c534924a839e62bf35a2b5f3717b7802eb19bd8d8e15');
+          expect(sha224('𠜎')).to.be('eaa0129b5509f5701db218fb7076b282e4409da52d06363aa3bdd63d');
+        });
+      });
+
+      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');
+        });
+      });
+    });
+    
+    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');
       });
     });
   });
-});
+})(sha256, sha224);
-
-describe('sha224', function() {
-  describe('ascii', function() {
-    describe('less than 64 bytes', function() {
-      it('should be successful', 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');
-      });
-    });
-
-    describe('more than 64 bytes', function() {
-      it('should be successful', 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');
-      });
-    });
-  });
-
-  describe('UTF8', function() {
-    describe('less than 64 bytes', function() {
-      it('should be successful', function() {
-        expect(sha224('中文')).to.be('dfbab71afdf54388af4d55f8bd3de8c9b15e0eb916bf9125f4a959d4');
-        expect(sha224('aécio')).to.be('d12841cafd89c534924a839e62bf35a2b5f3717b7802eb19bd8d8e15');
-        expect(sha224('𠜎')).to.be('eaa0129b5509f5701db218fb7076b282e4409da52d06363aa3bdd63d');
-      });
-    });
-
-    describe('more than 64 bytes', function() {
-      it('should be successful', 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（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');
-      });
-    });
-  });
-});