How to Encrypt & Decrypt URL using AES algorithm

Question

Hi,

I am developing a website for Online recharge in which i need to send a request to the remote server by encrypting the URL.

Recharge Request Foramt is:

http:// www.remoteServerName.in /recharge.ashx?uid=<user_id>&pwd=<password> 

&mobileno=<mobile_number>&amt=<recharge_amount>&transid=<transacti

on_id>

How can i encrypt and decrypt the URL without sharing the Key as i am generating  Random Key and IV automatically ?