crypto加密

/* hash.js */
    var crypto = require('crypto');
module.exports = function(){
     this.encode = function(){
          var algorithm  = arguments[0] ? arguments[0] : ''
        , enstring   = arguments[1] ? arguments[1] : ''
        , returnType = arguments[2] ? arguments[2] : '';
      if( algorithm ){
           var hash = crypto.createHash(algorithm);
           hash.update(enstring);
           return hash.digest(returnType);
      }
      console.log('Please input encryption param');
 }
}
 
/* target.js */
module.exports = function(){
        this.encode = function(){}
        this.decode = function(){}
}
 
/* adapter.js */
 
var util = require('util'),
    Target = require('./target');
 
function Adapter(){
        Target.call(this);
        this.encode = function(){
                var encodeModule = arguments[0] ? arguments[0] : null
                  , algorithm    = arguments[1] ? arguments[1] : ''  
                  , enstring     = arguments[2] ? arguments[2] : ''
                  , returnType   = arguments[3] ? arguments[3] : ''
                  ,AdapteeClass = require("./" + encodeModule)
                  ,adapteeObj = new AdapteeClass();
                  return adapteeObj.encode(algorithm, enstring, returnType, encodeKey, encodeType);
        }
}
 
util.inherits(Adapter,Target);
module.exports = Adapter;
 
/* test.js */
var AdapterClass = require('./adapter');
var Adapter = new AdapterClass();
var hashEncodeStr = Adapter.encode('hash', 'md5', 'yuejide', 'hex');
console.log(hashEncodeStr);
 
var http = require('http');
var crypto = require('crypto')
http.createServer(function(req,res){
 res.writeHead(200, {'Content-Type' : 'text/html'});
 var md5 = crypto.createHash('md5');
 var passwd = md5.update('admin').digest('hex');
 res.end(passwd);
}).listen(8888);