Password callback handler

Apache Rampart is the Axis2 module that provides WS-Security functionality to Axis2 Web services and their clients. Apache Rampart configuration allows providing a password callback handler class, that can be used to provide passwords needed for Rampart engine to build username tokens and create signatures when sending messages. It is also used to provide passwords required to validate incoming username tokens and decrypt encrypted content in incoming messages. In this tutorial, Nandana Mihindukulasooriya will go through possible usage scenarios of password callback handler and describe how to configure Rampart and write password callback handlers to suit each of those usage scenarios.