Chapter 3. The Concept of an Infrastructure

In this chapter, we introduce and discuss the idea of an infrastructure for security by considering the features and benefits of pervasive infrastructures with which we are currently familiar. This leads to a working definition of a Public-Key Infrastructure (PKI), which forms the basis of understanding for all remaining chapters.

Pervasive Substrate

A pervasive substrate is a foundation or underpinning for a large environment such as a corporate organization; an infrastructure may be considered a pervasive substrate. Two familiar infrastructures are the electronic communications infrastructure (that is, the network) and the electric power infrastructure. In the former, the Local Area Network (LAN) enables ...

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