Chapter 13. Cipher-Based Encryption
In this chapter, we’ll look at how to encrypt data using ciphers. We usually think of encryption as a means of protecting data sent over an insecure network, although it may also be used to protect data stored in a file, on a Java smart card, or in a number of other applications. With ciphers, the encryption of data is separate from its transmission. This is in sharp contrast to SSL, which can encrypt only data that is sent over sockets.
Cipher-based encryption is part of the JCE, which contains an engine (the cipher engine) that performs encryption as well as several classes that support data encryption. All the classes in this chapter are available only with the security provider that comes with JCE.
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