Preface

The ubiquity of information technologies such as wireless communications, biometric identification systems, online data repositories, and smart electricity grids has created new challenges in information security and privacy. Traditional approaches based on cryptography are often inadequate in such complex systems and fundamentally new techniques must be developed. Information theory provides fundamental limits that can guide the development of methods for addressing these challenges, and the purpose of this book is to introduce the reader to state-of-the-art developments in this field.