Hi, What you have understood is correct. We are the provider of the Web Service; and my requirement is something as explained below, The end users are using a Web site and the data entered in the web site will be converted to an XML file and send to the Web Service which we have provided. The end users are using STUNNEL to encrypt the XML files before sending to us. Hence, I need to decrypt the message and process it. Hence, I think I need to use STUNNEL for doing the same. Also, upon request from the end users I need to send some data, again it is XML files; and I need to encrypt this using STUNNEL and send it to the end user. I am new to STUNNEL and went through the examples provided in www.stunnel.org and didn't get a very good idea on how to get this done. I hope, I am able to make it clear this time. I was communicating through another email id till now (sreejithmohanm@gmail.com). For our future communication, I will be using the present email id. Sorry for the inconvenience. Thanks and best regards, Sreejith Mohan Menon Software Engineer Globalization Services SAP Labs India Pvt. Ltd. 4th Floor 1B, RMZ NXT, Sonnenhalli, K.R. Puram Hobli, East Taluk, Bangalore - 560 066. P - +91 80 4013 4987 M - +91 98863 08088 mailto:sreejith.mohan.menon@sap.com