how to encrypt/encode url parameters in jsp

Question

I want to encrypt a URL variable so that the user can't see or modify the information when it is passed in jsp.

This is an example URL:

localhost/somewebpage/name.jsp?id=1234&tname=Employee_March_2013

Here I want to encrypt or encode the parameters id and tname.

Could someone please help me write a short script that encodes / encrypts and then decrypts the parameters

EDIT:
I am sending this url as a attachment in email... when receiver clicks on this link their payslip information will displayed on the web page'

Solution

The best way to encode / decode in Base64 without using any third party libraries, you can use Using sun.misc.BASE64Encoder / sun.misc.BASE64Decoder.

try  this snippet 



  String id="1234";
  byte[]   bytesEncoded = Base64.encodeBase64(id.getBytes());//encoding part
  String encoded_id=new String(bytesEncoded);


  String id1=request.getParameter("id");
  byte[] valueDecoded= Base64.decodeBase64(id1);//decoding part
  String decoded_id=new String(valueDecoded);

Send 'encoded_id' as a url parameter instead of passing 'id'

Comments

[GitaarLAB]

You do realize this is about a link that is EMAILED to the user?