MD5加密與DZ加密

1.MD5加密：

public static String md64Encode(String Password){
       String newPassword = null;
       try {
            MessageDigest md5 = MessageDigest.getInstance("MD5");
            BASE64Encoder base64en  = new BASE64Encoder();
            newPassword = base64en.encode(md5.digest(Password.getBytes()));
            System.out.println("加密後爲："+newPassword);
       } catch (NoSuchAlgorithmException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
       }
       return newPassword;
}

 2.DZ加密方式

     方法：DZ加密就是 MD5(MD5(password)+時間戳);

public static String DZEncryption(String Password){
     String newPassword = null;
     try {
          MessageDigest md5 = MessageDigest.getInstance("MD5");
          BASE64Encoder base64en  = new BASE64Encoder();
          newPassword = base64en.encode(md5.digest(Password.getBytes()));
          newPassword = newPassword+System.currentTimeMillis();
          newPassword = base64en.encode(md5.digest(newPassword.getBytes()));
     } catch (NoSuchAlgorithmException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
     }
return newPassword;
}

  或者 調用MD5方法

MD5Util.md64Encode(MD5Util.md64Encode("666666")+System.currentTimeMillis())

 3.JAVA中的時間戳

    System.currentTimeMillis();