微信小程序 MD5的方法详解及实例代码


Posted in Javascript onMarch 10, 2017

微信小程序 MD5的方法详解

生成的文件可以放在  utils文件中哦!!!

/* 
 * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message 
 * Digest Algorithm, as defined in RFC 1321. 
 * Version 1.1 Copyright (C) Paul Johnston 1999 - 2002. 
 * Code also contributed by Greg Holt 
 * See http://pajhome.org.uk/site/legal.html for details. 
 */  
  
/* 
 * Add integers, wrapping at 2^32. This uses 16-bit operations internally 
 * to work around bugs in some JS interpreters. 
 */  
function safe_add(x, y)  
{  
 var lsw = (x & 0xFFFF) + (y & 0xFFFF)  
 var msw = (x >> 16) + (y >> 16) + (lsw >> 16)  
 return (msw << 16) | (lsw & 0xFFFF)  
}  
  
/* 
 * Bitwise rotate a 32-bit number to the left. 
 */  
function rol(num, cnt)  
{  
 return (num << cnt) | (num >>> (32 - cnt))  
}  
  
/* 
 * These functions implement the four basic operations the algorithm uses. 
 */  
function cmn(q, a, b, x, s, t)  
{  
 return safe_add(rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b)  
}  
function ff(a, b, c, d, x, s, t)  
{  
 return cmn((b & c) | ((~b) & d), a, b, x, s, t)  
}  
function gg(a, b, c, d, x, s, t)  
{  
 return cmn((b & d) | (c & (~d)), a, b, x, s, t)  
}  
function hh(a, b, c, d, x, s, t)  
{  
 return cmn(b ^ c ^ d, a, b, x, s, t)  
}  
function ii(a, b, c, d, x, s, t)  
{  
 return cmn(c ^ (b | (~d)), a, b, x, s, t)  
}  
  
/* 
 * Calculate the MD5 of an array of little-endian words, producing an array 
 * of little-endian words. 
 */  
function coreMD5(x)  
{  
 var a = 1732584193  
 var b = -271733879  
 var c = -1732584194  
 var d = 271733878  
  
 for(var i = 0; i < x.length; i += 16)  
 {  
  var olda = a  
  var oldb = b  
  var oldc = c  
  var oldd = d  
  
  a = ff(a, b, c, d, x[i+ 0], 7 , -680876936)  
  d = ff(d, a, b, c, x[i+ 1], 12, -389564586)  
  c = ff(c, d, a, b, x[i+ 2], 17, 606105819)  
  b = ff(b, c, d, a, x[i+ 3], 22, -1044525330)  
  a = ff(a, b, c, d, x[i+ 4], 7 , -176418897)  
  d = ff(d, a, b, c, x[i+ 5], 12, 1200080426)  
  c = ff(c, d, a, b, x[i+ 6], 17, -1473231341)  
  b = ff(b, c, d, a, x[i+ 7], 22, -45705983)  
  a = ff(a, b, c, d, x[i+ 8], 7 , 1770035416)  
  d = ff(d, a, b, c, x[i+ 9], 12, -1958414417)  
  c = ff(c, d, a, b, x[i+10], 17, -42063)  
  b = ff(b, c, d, a, x[i+11], 22, -1990404162)  
  a = ff(a, b, c, d, x[i+12], 7 , 1804603682)  
  d = ff(d, a, b, c, x[i+13], 12, -40341101)  
  c = ff(c, d, a, b, x[i+14], 17, -1502002290)  
  b = ff(b, c, d, a, x[i+15], 22, 1236535329)  
  
  a = gg(a, b, c, d, x[i+ 1], 5 , -165796510)  
  d = gg(d, a, b, c, x[i+ 6], 9 , -1069501632)  
  c = gg(c, d, a, b, x[i+11], 14, 643717713)  
  b = gg(b, c, d, a, x[i+ 0], 20, -373897302)  
  a = gg(a, b, c, d, x[i+ 5], 5 , -701558691)  
  d = gg(d, a, b, c, x[i+10], 9 , 38016083)  
  c = gg(c, d, a, b, x[i+15], 14, -660478335)  
  b = gg(b, c, d, a, x[i+ 4], 20, -405537848)  
  a = gg(a, b, c, d, x[i+ 9], 5 , 568446438)  
  d = gg(d, a, b, c, x[i+14], 9 , -1019803690)  
  c = gg(c, d, a, b, x[i+ 3], 14, -187363961)  
  b = gg(b, c, d, a, x[i+ 8], 20, 1163531501)  
  a = gg(a, b, c, d, x[i+13], 5 , -1444681467)  
  d = gg(d, a, b, c, x[i+ 2], 9 , -51403784)  
  c = gg(c, d, a, b, x[i+ 7], 14, 1735328473)  
  b = gg(b, c, d, a, x[i+12], 20, -1926607734)  
  
  a = hh(a, b, c, d, x[i+ 5], 4 , -378558)  
  d = hh(d, a, b, c, x[i+ 8], 11, -2022574463)  
  c = hh(c, d, a, b, x[i+11], 16, 1839030562)  
  b = hh(b, c, d, a, x[i+14], 23, -35309556)  
  a = hh(a, b, c, d, x[i+ 1], 4 , -1530992060)  
  d = hh(d, a, b, c, x[i+ 4], 11, 1272893353)  
  c = hh(c, d, a, b, x[i+ 7], 16, -155497632)  
  b = hh(b, c, d, a, x[i+10], 23, -1094730640)  
  a = hh(a, b, c, d, x[i+13], 4 , 681279174)  
  d = hh(d, a, b, c, x[i+ 0], 11, -358537222)  
  c = hh(c, d, a, b, x[i+ 3], 16, -722521979)  
  b = hh(b, c, d, a, x[i+ 6], 23, 76029189)  
  a = hh(a, b, c, d, x[i+ 9], 4 , -640364487)  
  d = hh(d, a, b, c, x[i+12], 11, -421815835)  
  c = hh(c, d, a, b, x[i+15], 16, 530742520)  
  b = hh(b, c, d, a, x[i+ 2], 23, -995338651)  
  
  a = ii(a, b, c, d, x[i+ 0], 6 , -198630844)  
  d = ii(d, a, b, c, x[i+ 7], 10, 1126891415)  
  c = ii(c, d, a, b, x[i+14], 15, -1416354905)  
  b = ii(b, c, d, a, x[i+ 5], 21, -57434055)  
  a = ii(a, b, c, d, x[i+12], 6 , 1700485571)  
  d = ii(d, a, b, c, x[i+ 3], 10, -1894986606)  
  c = ii(c, d, a, b, x[i+10], 15, -1051523)  
  b = ii(b, c, d, a, x[i+ 1], 21, -2054922799)  
  a = ii(a, b, c, d, x[i+ 8], 6 , 1873313359)  
  d = ii(d, a, b, c, x[i+15], 10, -30611744)  
  c = ii(c, d, a, b, x[i+ 6], 15, -1560198380)  
  b = ii(b, c, d, a, x[i+13], 21, 1309151649)  
  a = ii(a, b, c, d, x[i+ 4], 6 , -145523070)  
  d = ii(d, a, b, c, x[i+11], 10, -1120210379)  
  c = ii(c, d, a, b, x[i+ 2], 15, 718787259)  
  b = ii(b, c, d, a, x[i+ 9], 21, -343485551)  
  
  a = safe_add(a, olda)  
  b = safe_add(b, oldb)  
  c = safe_add(c, oldc)  
  d = safe_add(d, oldd)  
 }  
 return [a, b, c, d]  
}  
  
/* 
 * Convert an array of little-endian words to a hex string. 
 */  
function binl2hex(binarray)  
{  
 var hex_tab = "0123456789abcdef"  
 var str = ""  
 for(var i = 0; i < binarray.length * 4; i++)  
 {  
  str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) +  
      hex_tab.charAt((binarray[i>>2] >> ((i%4)*8)) & 0xF)  
 }  
 return str  
}  
  
/* 
 * Convert an array of little-endian words to a base64 encoded string. 
 */  
function binl2b64(binarray)  
{  
 var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"  
 var str = ""  
 for(var i = 0; i < binarray.length * 32; i += 6)  
 {  
  str += tab.charAt(((binarray[i>>5] << (i%32)) & 0x3F) |  
           ((binarray[i>>5+1] >> (32-i%32)) & 0x3F))  
 }  
 return str  
}  
  
/* 
 * Convert an 8-bit character string to a sequence of 16-word blocks, stored 
 * as an array, and append appropriate padding for MD4/5 calculation. 
 * If any of the characters are >255, the high byte is silently ignored. 
 */  
function str2binl(str)  
{  
 var nblk = ((str.length + 8) >> 6) + 1 // number of 16-word blocks  
 var blks = new Array(nblk * 16)  
 for(var i = 0; i < nblk * 16; i++) blks[i] = 0  
 for(var i = 0; i < str.length; i++)  
  blks[i>>2] |= (str.charCodeAt(i) & 0xFF) << ((i%4) * 8)  
 blks[i>>2] |= 0x80 << ((i%4) * 8)  
 blks[nblk*16-2] = str.length * 8  
 return blks  
}  
  
/* 
 * Convert a wide-character string to a sequence of 16-word blocks, stored as 
 * an array, and append appropriate padding for MD4/5 calculation. 
 */  
function strw2binl(str)  
{  
 var nblk = ((str.length + 4) >> 5) + 1 // number of 16-word blocks  
 var blks = new Array(nblk * 16)  
 for(var i = 0; i < nblk * 16; i++) blks[i] = 0  
 for(var i = 0; i < str.length; i++)  
  blks[i>>1] |= str.charCodeAt(i) << ((i%2) * 16)  
 blks[i>>1] |= 0x80 << ((i%2) * 16)  
 blks[nblk*16-2] = str.length * 16  
 return blks  
}  
  
/* 
 * External interface 
 */  
function hexMD5 (str) { return binl2hex(coreMD5( str2binl(str))) }  
function hexMD5w(str) { return binl2hex(coreMD5(strw2binl(str))) }  
function b64MD5 (str) { return binl2b64(coreMD5( str2binl(str))) }  
function b64MD5w(str) { return binl2b64(coreMD5(strw2binl(str))) }  
/* Backward compatibility */  
function calcMD5(str) { return binl2hex(coreMD5( str2binl(str))) }  
module.exports = {  
 hexMD5: hexMD5  
}

使用方式 :

var utilMd5 = require('../../utils/md5.js');  
var password = utilMd5.hexMD5(password);

感谢阅读,希望能帮助到大家,谢谢大家对本站的支持!

Javascript 相关文章推荐
Javascript load Page,load css,load js实现代码
Mar 31 Javascript
js substr、substring和slice使用说明小记
Sep 15 Javascript
jquery获取checkbox的值并post提交
Jan 14 Javascript
jQuery操作表单常用控件方法小结
Mar 23 Javascript
jQuery实现获取table表格第一列值的方法
Mar 01 Javascript
JavaScript进阶练习及简单实例分析
Jun 03 Javascript
浅谈ElementUI中switch回调函数change的参数问题
Aug 24 Javascript
vue 巧用过渡效果(小结)
Sep 22 Javascript
iView-admin 动态路由问题的解决方法
Oct 03 Javascript
Vue Echarts实现可视化世界地图代码实例
May 07 Javascript
Vue中qs插件的使用详解
Feb 07 Javascript
vue-video-player 解决微信自动全屏播放问题(横竖屏导致样式错乱问题)
Feb 25 Javascript
jQuery实现扑克正反面翻牌效果
Mar 10 #Javascript
AngularJS之页面跳转Route实例代码
Mar 10 #Javascript
Angular多选、全选、批量选择操作实例代码
Mar 10 #Javascript
jQuery插件HighCharts绘制2D带有Legend的饼图效果示例【附demo源码下载】
Mar 10 #Javascript
Vue.js之slot深度复制详解
Mar 10 #Javascript
JS实现的自动打字效果示例
Mar 10 #Javascript
jquery实现的table排序功能示例
Mar 10 #Javascript
You might like
php5.2以下版本无json_decode函数的解决方法
2014/05/25 PHP
PHP内置的Math函数效率测试
2014/12/01 PHP
PHP通过串口实现发送短信
2015/07/08 PHP
Laravel学习教程之本地化模块
2017/08/18 PHP
PHP文件上传小程序 适合初学者学习!
2019/05/23 PHP
PHP使用CURL实现下载文件功能示例
2019/06/03 PHP
PHP连接SQL server数据库测试脚本运行实例
2020/08/24 PHP
来自chinaz的ajax获取评论代码
2008/05/03 Javascript
js 页面传参数时 参数值含特殊字符的问题
2009/12/13 Javascript
javascript 的Document属性和方法集合
2010/01/25 Javascript
javascript倒计时功能实现代码
2012/06/07 Javascript
Js-$.extend扩展方法使方法参数更灵活
2013/01/15 Javascript
js导航菜单(自写)简单大方
2013/03/28 Javascript
利用webqq协议使用python登录qq发消息源码参考
2013/04/08 Javascript
jQuery toggleClass应用实例(附效果图)
2014/04/06 Javascript
常见浏览器多长时间会提示“脚本运行时间过长”总结
2014/04/29 Javascript
js实现网页标题栏闪烁提示效果实例分析
2014/11/20 Javascript
AngularJS辅助库browserTrigger用法示例
2016/11/03 Javascript
基于jquery实现的银行卡号每隔4位自动插入空格的实现代码
2016/11/22 Javascript
AngularJS的ng-click传参的方法
2017/06/19 Javascript
对vue v-if v-else-if v-else 的简单使用详解
2018/09/29 Javascript
适合前端Vue开发童鞋的跨平台Weex的使用详解
2019/10/16 Javascript
使用preload预加载页面资源时注意事项
2020/02/03 Javascript
[04:03][TI9趣味短片] 小鸽子茶话会
2019/08/20 DOTA
[49:15]DOTA2-DPC中国联赛 正赛 CDEC vs XG BO3 第二场 1月19日
2021/03/11 DOTA
python通过ftplib登录到ftp服务器的方法
2015/05/08 Python
python opencv实现任意角度的透视变换实例代码
2018/01/12 Python
python卸载后再次安装遇到的问题解决
2019/07/10 Python
在Django下测试与调试REST API的方法详解
2019/08/29 Python
Alexandre Birman美国官网:亚历山大·伯曼
2019/10/30 全球购物
丑小鸭教学反思
2014/02/03 职场文书
文明餐桌活动方案
2014/02/11 职场文书
公司活动总结范文
2014/07/01 职场文书
建设幸福中国演讲稿
2014/09/11 职场文书
教师聘用意向书
2015/05/11 职场文书
MySql新手入门的基本操作汇总
2021/05/13 MySQL