CHAPTER 9
Ownership Factors
As you saw in Chapter 5, authentication is a fundamental aspect of security that involves verifying credentials supplied by a user to establish an identity for the user in an application. A credential can be a knowledge factor that the user knows, an ownership factor that the user owns, or an inherence factor that the user is. I covered knowledge factors in Chapter 8. In this chapter, I focus on ownership factors.
An ownership factor is an element that a user owns or possesses, such as a key, certificate, or token. Unlike a knowledge factor, which can be passed on to others easily, intentionally or otherwise, it is ...
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