微信小程序 MD5 方法js

来源：互联网发布：信托公司硕士待遇知乎编辑：程序博客网时间：2024/06/03 13:04

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);

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