mirror of https://github.com/emn178/js-md2.git
create project
Chen Yi-Cyuan
12 years ago
commit
29f0933cb2
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# v0.1.0 / 2014-01-05
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Initial release
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Copyright 2014 emn178@gmail.com
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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# js-md2
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This is a simple MD2 hash function for JavaScript supports UTF-8 encoding.
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## Install
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For node.js, you can use this command to install:
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npm install js-md2
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## Usage
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If you use node.js, you should require the module first:
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```JavaScript
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md2 = require('js-md2');
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```
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And you could use like this:
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```JavaScript
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md2('Message to hash');
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```
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## Example
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Code
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```JavaScript
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md2('');
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md2('The quick brown fox jumps over the lazy dog');
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md2('The quick brown fox jumps over the lazy dog.');
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```
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Output
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8350e5a3e24c153df2275c9f80692773
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03d85a0d629d2c442e987525319fc471
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71eaa7e440b611e41a6f0d97384b342a
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It also supports UTF-8 encoding:
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Code
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```JavaScript
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md2('中文');
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```
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Output
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7af93c270b0ec392ca2f0d90a927cf8a
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## Tests
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You can open `tests/index.html` in browser or use node.js to run test
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node tests/node-test.js
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or
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npm test
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## Extensions
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### jQuery
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If you prefer jQuery style, you can add following code to add a jQuery extension.
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Code
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```JavaScript
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jQuery.md2 = md2
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```
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And then you could use like this:
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```JavaScript
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$.md2('message');
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```
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### Prototype
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If you prefer prototype style, you can add following code to add a prototype extension.
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Code
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```JavaScript
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String.prototype.md2 = function() {
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return md2(this);
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};
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```
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And then you could use like this:
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```JavaScript
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'message'.md2();
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```
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## License
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The project is released under the [MIT license](http://www.opensource.org/licenses/MIT).
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## Contact
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The project's website is located at https://github.com/emn178/js-md2
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Author: emn178@gmail.com
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(function(h,n){var k={0:0,1:1,2:2,3:3,4:4,5:5,6:6,7:7,8:8,9:9,a:10,b:11,c:12,d:13,e:14,f:15,A:10,B:11,C:12,D:13,E:14,F:15},l=[41,46,67,201,162,216,124,1,61,54,84,161,236,240,6,19,98,167,5,243,192,199,115,140,152,147,43,217,188,76,130,202,30,155,87,60,253,212,224,22,103,66,111,24,138,23,229,18,190,78,196,214,218,158,222,73,160,251,245,142,187,47,238,122,169,104,121,145,21,178,7,63,148,194,16,137,11,34,95,33,128,127,93,154,90,144,50,39,53,62,204,231,191,247,151,3,255,25,48,179,72,165,181,209,215,94,
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146,42,172,86,170,198,79,184,56,210,150,164,125,182,118,252,107,226,156,116,4,241,69,157,112,89,100,113,135,32,134,91,207,101,230,45,168,2,27,96,37,173,174,176,185,246,28,70,97,105,52,64,126,15,85,71,163,35,221,81,175,58,195,92,249,206,186,197,234,38,44,83,13,110,133,40,132,9,211,223,205,244,65,129,77,82,106,220,55,200,108,193,171,250,36,225,123,8,12,189,177,74,120,136,149,139,227,99,232,109,233,203,213,254,59,0,29,57,242,239,183,14,102,88,208,228,166,119,114,248,235,117,75,10,49,68,80,180,143,237,
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31,26,219,153,141,51,159,17,131,20],m=function(d){var a;a:{for(a=d.length;a--;)if(255<d.charCodeAt(a)){a=!0;break a}a=!1}if(a){var e=encodeURIComponent(d);d=[];for(var c=a=0,b=e.length;a<b;++a){var f=e.charCodeAt(a);d[c]=37==f?k[e.charAt(++a)]<<4|k[e.charAt(++a)]:f;++c}e=(c>>4)+1<<4;b=16-(c&15);for(a=c;a<e;++a)d[a]=b}else{b=d.length;a=(b>>4)+1<<4;c=[];for(e=0;e<b;++e)c[e]=d.charCodeAt(e);for(d=16-(b&15);e<a;++e)c[e]=d;d=c}a=[];c=0;e=d.length>>4;for(b=0;b<e;++b)for(f=0;16>f;++f)a[f]^=l[d[(b<<4)+f]^
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c],c=a[f];e=d.length;for(b=0;16>b;++b)d[e+b]=a[b];a=[];for(c=0;48>c;++c)a[c]=0;e=d.length>>4;for(c=0;c<e;++c){for(b=0;16>b;++b)a[16+b]=d[(c<<4)+b],a[32+b]=a[16+b]^a[b];for(b=f=0;18>b;++b){for(var g=0;48>g;++g)a[g]=f=a[g]^l[f];f=f+b&255}}d="";for(c=0;16>c;++c)d+="0123456789abcdef".charAt(a[c]>>4&15)+"0123456789abcdef".charAt(a[c]&15);return d};"undefined"!=typeof module?module.exports=m:h&&(h.md2=m)})(this);
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{
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"name": "js-md2",
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"version": "0.1.0",
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"description": "A simple MD2 hash function for JavaScript supports UTF-8 encoding.",
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"main": "src/md2.js",
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"scripts": {
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"test": "node tests/node-test.js"
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},
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"repository": {
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"type": "git",
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"url": "https://github.com/emn178/js-md2.git"
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},
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"keywords": [
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"md2",
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"hash",
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"encryption",
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"cryptography",
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"HMAC"
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],
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"license": "MIT",
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"author": "emn178 <emn178@gmail.com>",
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"homepage": "https://github.com/emn178/js-md2",
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"bugs": {
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"url": "https://github.com/emn178/js-md2/issues"
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}
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}
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/*
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* js-md5 v0.1.0
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* https://github.com/emn178/js-md2
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*
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* Copyright 2014, emn178@gmail.com
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*
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* Licensed under the MIT license:
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* http://www.opensource.org/licenses/MIT
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*/
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;(function(root, undefined){
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'use strict';
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var HEX_CHARS = "0123456789abcdef";
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var HEX_TABLE = {
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'0': 0, '1': 1, '2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8, '9': 9,
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'a': 10, 'b': 11, 'c': 12, 'd': 13, 'e': 14, 'f': 15,
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'A': 10, 'B': 11, 'C': 12, 'D': 13, 'E': 14, 'F': 15
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};
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var S = [ 0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01, 0x3D, 0x36, 0x54, 0xA1, 0xEC, 0xF0, 0x06, 0x13,
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0x62, 0xA7, 0x05, 0xF3, 0xC0, 0xC7, 0x73, 0x8C, 0x98, 0x93, 0x2B, 0xD9, 0xBC, 0x4C, 0x82, 0xCA,
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0x1E, 0x9B, 0x57, 0x3C, 0xFD, 0xD4, 0xE0, 0x16, 0x67, 0x42, 0x6F, 0x18, 0x8A, 0x17, 0xE5, 0x12,
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0xBE, 0x4E, 0xC4, 0xD6, 0xDA, 0x9E, 0xDE, 0x49, 0xA0, 0xFB, 0xF5, 0x8E, 0xBB, 0x2F, 0xEE, 0x7A,
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0xA9, 0x68, 0x79, 0x91, 0x15, 0xB2, 0x07, 0x3F, 0x94, 0xC2, 0x10, 0x89, 0x0B, 0x22, 0x5F, 0x21,
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0x80, 0x7F, 0x5D, 0x9A, 0x5A, 0x90, 0x32, 0x27, 0x35, 0x3E, 0xCC, 0xE7, 0xBF, 0xF7, 0x97, 0x03,
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0xFF, 0x19, 0x30, 0xB3, 0x48, 0xA5, 0xB5, 0xD1, 0xD7, 0x5E, 0x92, 0x2A, 0xAC, 0x56, 0xAA, 0xC6,
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0x4F, 0xB8, 0x38, 0xD2, 0x96, 0xA4, 0x7D, 0xB6, 0x76, 0xFC, 0x6B, 0xE2, 0x9C, 0x74, 0x04, 0xF1,
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0x45, 0x9D, 0x70, 0x59, 0x64, 0x71, 0x87, 0x20, 0x86, 0x5B, 0xCF, 0x65, 0xE6, 0x2D, 0xA8, 0x02,
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0x1B, 0x60, 0x25, 0xAD, 0xAE, 0xB0, 0xB9, 0xF6, 0x1C, 0x46, 0x61, 0x69, 0x34, 0x40, 0x7E, 0x0F,
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0x55, 0x47, 0xA3, 0x23, 0xDD, 0x51, 0xAF, 0x3A, 0xC3, 0x5C, 0xF9, 0xCE, 0xBA, 0xC5, 0xEA, 0x26,
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0x2C, 0x53, 0x0D, 0x6E, 0x85, 0x28, 0x84, 0x09, 0xD3, 0xDF, 0xCD, 0xF4, 0x41, 0x81, 0x4D, 0x52,
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0x6A, 0xDC, 0x37, 0xC8, 0x6C, 0xC1, 0xAB, 0xFA, 0x24, 0xE1, 0x7B, 0x08, 0x0C, 0xBD, 0xB1, 0x4A,
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0x78, 0x88, 0x95, 0x8B, 0xE3, 0x63, 0xE8, 0x6D, 0xE9, 0xCB, 0xD5, 0xFE, 0x3B, 0x00, 0x1D, 0x39,
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0xF2, 0xEF, 0xB7, 0x0E, 0x66, 0x58, 0xD0, 0xE4, 0xA6, 0x77, 0x72, 0xF8, 0xEB, 0x75, 0x4B, 0x0A,
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0x31, 0x44, 0x50, 0xB4, 0x8F, 0xED, 0x1F, 0x1A, 0xDB, 0x99, 0x8D, 0x33, 0x9F, 0x11, 0x83, 0x14];
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var md2 = function(message) {
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var M = hasUTF8(message) ? UTF8toBlocks(message) : ASCIItoBlocks(message);
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appendChecksum(M);
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var X = [];
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for(var i = 0;i < 48;++i)
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X[i] = 0;
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var length = M.length >> 4;
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for(var i = 0;i < length;++i)
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{
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for(var j = 0;j < 16;++j)
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{
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X[16 + j] = M[(i << 4) + j];
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X[32 + j] = X[16 + j] ^ X[j];
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}
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var t = 0;
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for(var j = 0;j < 18;++j)
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{
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for(var k = 0;k < 48;++k)
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X[k] = t = X[k] ^ S[t];
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t = (t + j) & 0xFF;
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}
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}
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var hex = '';
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for(var i = 0;i < 16;++i)
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hex += HEX_CHARS.charAt((X[i] >> 4) & 0x0F) + HEX_CHARS.charAt(X[i] & 0x0F);
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return hex;
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};
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var hasUTF8 = function(message) {
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for(var i = message.length;i--;)
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if(message.charCodeAt(i) > 255)
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return true;
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return false;
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};
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var ASCIItoBlocks = function(message) {
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// a block is 8 bits(1 bytes), a chunk is 128 bits(16 bytes)
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var length = message.length;
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var chunkCount = (length >> 4) + 1;
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var blockCount = chunkCount << 4; // chunkCount * 16
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var blocks = [];
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var i;
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for(i = 0;i < length;++i)
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blocks[i] = message.charCodeAt(i);
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var ibit = 16 - (length & 15);
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for(;i < blockCount;++i)
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blocks[i] = ibit;
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return blocks;
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};
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var UTF8toBlocks = function(message) {
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var uri = encodeURIComponent(message);
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var blocks = [];
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for(var i = 0, bytes = 0, length = uri.length;i < length;++i)
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{
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var c = uri.charCodeAt(i);
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if(c == 37) // %
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blocks[bytes] = (HEX_TABLE[uri.charAt(++i)] << 4) | HEX_TABLE[uri.charAt(++i)];
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else
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blocks[bytes] = c;
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++bytes;
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}
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var chunkCount = (bytes >> 4) + 1;
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var blockCount = chunkCount << 4; // chunkCount * 4
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var ibit = 16 - (bytes & 15);
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for(var i = bytes;i < blockCount;++i)
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blocks[i] = ibit;
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return blocks;
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};
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var appendChecksum = function(M) {
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var checksum = [];
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var L = 0;
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var length = M.length >> 4;
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for(var i = 0;i < length;++i)
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{
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for(var j = 0;j < 16;++j)
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{
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var c = M[(i << 4) + j];
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checksum[j] ^= S[c ^ L];
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L = checksum[j];
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}
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}
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length = M.length;
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for(var i = 0;i < 16;++i)
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M[length + i] = checksum[i];
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};
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if(typeof(module) != 'undefined')
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module.exports = md2;
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else if(root)
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root.md2 = md2;
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}(this));
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(function(root) {
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var assert = function (title, expect, actual) {
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if(expect == actual)
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console.log(title + ': true');
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else
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console.log(title + ': false', 'Except:' + expect, 'Actual: ' + actual);
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};
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if(typeof(module) != 'undefined')
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global.assert = assert;
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else if(root)
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root.assert = assert;
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})(this);
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<!doctype html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>MD2</title>
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<script src="../src/md2.js"></script>
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<script src="debug.js"></script>
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<script src="test.js"></script>
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</head>
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<body>
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</body>
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</html>
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md2 = require('../src/md2.js');
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require('./debug.js');
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require('./test.js');
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assert('md2 1', '8350e5a3e24c153df2275c9f80692773', md2(''));
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assert('md2 2', '03d85a0d629d2c442e987525319fc471', md2('The quick brown fox jumps over the lazy dog'));
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assert('md2 3', '71eaa7e440b611e41a6f0d97384b342a', md2('The quick brown fox jumps over the lazy dog.'));
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assert('md2 4', '7af93c270b0ec392ca2f0d90a927cf8a', md2('中文'));
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Loading…
Reference in New Issue