微信小程序登录密码MD5加密
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在小程序中,页面的脚本逻辑是在JsCore中运行,JsCore是一个没有窗口对象的环境,所以不能在脚本中使用window,也无法在脚本中操作组件。zepto/jQuery 也无法使用,因为zepto/jquery 会使用到window对象和document对象。所以在微信小程序中不能使用jquery.md5.js对密码进行加密。下面我提供一种MD5.js加密实例,本实例先静态演示,后面再到小程序中演示。
md5.js程序如下:
- /*
- * 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(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))) }
md5.html页面程序如下:
- <html>
- <head>
- <script language='javascript' src='md5.js'></script><!--引入MD5加密-->
- <script language="javascript">
- <!--
- function my_do()
- //通过js对数据进行加密
- {
- //var URL="http://127.0.0.1/index.jsp?";
- //var dqz_out="";
- var dqz_in=document.my_form1.my_in_1.value;
- document.my_form1.my_out_1.value=hexMD5(dqz_in);
- document.my_form1.my_out_2.value=hexMD5w(dqz_in);
- document.my_form1.my_out_3.value=b64MD5(dqz_in);
- document.my_form1.my_out_4.value=b64MD5w(dqz_in);
- //URL=URL+"in="+dqz_in+"&out="+dqz_out;
- //my_form1.action = URL;
- //window.open(URL,'','');
- //my_form1.submit();
- }
- //-->
- </script>
- </head>
- <body>
- <form name="my_form1" method="get" action="">
- <p>计算MD5加密结果的例子<br>
- 请输入加密内容:
- <textarea name="my_in_1" cols="70" rows="10">1234567890</textarea>
- <br>
- 点击右边的文本框显示结果:<br><!--mouseup某个鼠标按键被松开,mouseout鼠标从某个元素移开-->
- hexMD5()= <input name="my_out_1" type="text" onChange="my_do()" onMouseUp="my_do()" onMouseOut="my_do()" size="50" maxlength="50"><br>
- hexMD5w()=<input name="my_out_2" type="text" onChange="my_do()" onMouseUp="my_do()" onMouseOut="my_do()" size="50" maxlength="50"><br>
- b64MD5()= <input name="my_out_3" type="text" onChange="my_do()" onMouseUp="my_do()" onMouseOut="my_do()" size="50" maxlength="50"><br>
- b64MD5w()=<input name="my_out_4" type="text" onChange="my_do()" onMouseUp="my_do()" onMouseOut="my_do()" size="50" maxlength="50"><br>
- <br>
- </p>
- </form>
- </body>
- </html>
下面介绍微信小程序如何加密——模块化
我们可以将一些公共的代码抽离成为一个单独的 js 文件,作为一个模块。模块只有通过 module.exports 或者 exports 才能对外暴露接口。需要注意的是:
(1)、 exports 是 module.exports 的一个引用,因此在模块里边随意更改 exports 的指向会造成未知的错误。所以我们更推荐开发者采用 module.exports 来暴露模块接口,除非你已经清晰知道这两者的关系。
(2)、小程序目前不支持直接引入 node_modules , 开发者需要使用到 node_modules 时候建议拷贝出相关的代码到小程序的目录中。
- // common.js
- function sayHello(name) {
- console.log(`Hello ${name} !`)
- }
- function sayGoodbye(name) {
- console.log(`Goodbye ${name} !`)
- }
- module.exports.sayHello = sayHello
- exports.sayGoodbye = sayGoodbye
- var common = require('common.js')
- Page({
- helloMINA: function() {
- common.sayHello('MINA')
- },
- goodbyeMINA: function() {
- common.sayGoodbye('MINA')
- }
- })
md5.js程序如下:
- /*
- * 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
- }
使用程序如下:
- //index.js
- var util = require('../../utils/md5.js')
- //获取应用实例
- var app = getApp()
- Page({
- data: {
- page:'1',
- },
- var password=value.password;
- if(password===""||password===null){
- wx.showModal({
- title:'提示',
- content: '密码不能为空',
- confirmColor:'#118EDE',
- showCancel: false,
- success: function (res) {
- if (res.confirm) {
- //console.log('用户点击确定')
- }
- }
- });
- return false;
- }else{
- password=util.hexMD5(password);
- }
- })
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