这篇文章主要介绍了微信小程序 md5的方法详解及实例代码的相关资料,需要的朋友可以参考下
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( #39;../../utils/md5.js #39;); var password = utilMd5.hexMD5(password);
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