Chapter 3. Architecture
Java cryptography software comes in two pieces. One piece is the JDK itself, which includes cryptographic classes for authentication. The other piece, the Java Cryptography Extension (JCE), includes so-called “strong cryptography.” In this chapter I’ll talk about these two pieces of software and the architecture that houses them. In particular, I’ll cover:
The separation of cryptographic concepts and implementations (algorithms)
The separation of the public methods of a concept class from its inner workings
The use of factory methods in the cryptography classes
The provider architecture
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