Node.js DES加密的简单实现

/***
 * @author chenjianxiang
 * @date 2016-07-07
 */

var crypto = require('crypto');
var key = '12345670';
exports.des = {

  algorithm:{ ecb:'des-ecb',cbc:'des-cbc' },
  encrypt:function(plaintext,iv){
    var key = new Buffer(key);
    var iv = new Buffer(iv ? iv : 0);
    var cipher = crypto.createCipheriv(this.algorithm.ecb, key, iv);
    cipher.setAutoPadding(true) //default true
    var ciph = cipher.update(plaintext, 'utf8', 'base64');
    ciph += cipher.final('base64');
    return ciph;
  },
  decrypt:function(encrypt_text,iv){
    var key = new Buffer(key);
    var iv = new Buffer(iv ? iv : 0);
    var decipher = crypto.createDecipheriv(this.algorithm.ecb, key, iv);
    decipher.setAutoPadding(true);
    var txt = decipher.update(encrypt_text, 'base64', 'utf8');
    txt += decipher.final('utf8');
    return txt;
  }

};

//加密
var cryptUtil = require("./utils/crypt");
var str = "/upload/image/201602120012.jpg";
var encrypt_text = cryptUtil.des.encrypt(str,0);
var decrypt_text = cryptUtil.des.decrypt(encrypt_text,0);
console.log(encrypt_text);
console.log(decrypt_text);