In this tutorial, the author explains the cryptography-related concepts and packages in JDK,with code examples.Many of the concepts and technical terms thus learnt will be useful in understanding the Cryptography API in MFCalso. There are three security-related packages in JDK1.4, as follows: JCA/JCE(Java Cryptography Architecture & JavaCryptography Extensions) JSSE( Java Secure-Sockets Extension). JAAS( Java Authentication &AuhorizationService) also read: …