Summary

Security is a multifaceted feature of the Java platform. There are a number of facilities within Java that allow you to write a Java application that implements a particular security policy, and this book will focus on each of those facilities in turn. These features are important within a Java-enabled browser, and they are also important with Java applications, particularly as applications become more distributed.

In addition, the security package allows us to create applications that use generic security features -- such as digital signatures -- for many purposes aside from expanding the Java sandbox. This other use of the security package will also be a constant theme throughout this book.

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