Chapter 2. Security Principles
This chapter is a guide to security thinking. Although it ends with a section defining common terms, it is not intended to be a primer on cryptography. Rather it reviews the assumptions that people make when setting up networks and generally in communication. We see how it is necessary to challenge assumptions to identify weaknesses and move toward a secure environment.
What Is Security?
The word security can mean different things when taken in different contexts. For instance, we talk about security in relation to national policy, personal safety, financial risk, and privacy of communication. We even use the word to describe our state of emotions. So what is the common thread that links these definitions? Why do we ...
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