Chapter 1. Beginning with a Simple Communication Game

We begin this book with a simple example of applying cryptography to solve a simple problem. This example of cryptographic application serves three purposes from which we will unfold the topics of this book:

  • To provide an initial demonstration on the effectiveness and practicality of using cryptography for solving subtle problems in applications

  • To suggest an initial hint on the foundation of cryptography

  • To begin our process of establishing a required mindset for conducting the development of cryptographic systems for information security

To begin with, we shall pose a trivially simple problem and then solve it with an equally simple solution. The solution is a two-party game which is ...

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