The Java Cryptography Architecture (JCA) is a set of APIs to implement concepts of modern cryptography such as digital signatures, message digests, and certificates. This specification helps developers integrate security into their applications.

This app has been prepared for beginners to make them understand the basics of JCA. All the examples are given using the Java programming language therefore, a basic idea of Java programming language is required.

For this app, it is assumed that the readers have prior knowledge of the Java programming language.