不多说,直接上代码

//crypto是node.js内置的库var crypto = require("crypto");//可加密,可解密的aes192module.exports.aes192_encode = function(text, key) {    var cipher = crypto.createCipher('aes192', key);    var crypted = cipher.update(text+"", 'utf8', 'hex');    crypted += cipher.final('hex');    return crypted;};module.exports.aes192_decode = function(message, key) {    var decipher = crypto.createDecipher('aes192', key);    var dec = decipher.update(message, 'hex', 'utf8');    dec += decipher.final('utf8'); //解密之后的值    return dec;};//不可逆加密md5module.exports.md5 = function(data) {  var buf = new Buffer(data+"");  var str = buf.toString("binary");  return crypto.createHash("md5").update(str).digest("hex");};//需要密钥的不可逆加密hamcmodule.exports.hamc = function(data,key){  var buf = new Buffer(data);  var str = buf.toString("binary");  return crypto.createHmac('sha1', key).update(str).digest("hex");};