Complexity and Cryptography

'This book is provided with plenty of exercises and is excellent for an undergraduate course in Cryptography.' Zentralblatt MATH
'Cryptography plays a crucial role in many aspects of today's world … Understanding the principles on which it is based is an important topic that requires a knowledge of both computational complexity and a range of topics in pure mathematics. This book provides that knowledge, combining an informal style with rigourous proofs of the key results to give an accessible introduction.' L'enseignement mathematique
'This is a nice introductory textbook that covers the most important areas of cryptography in an easily accessible manner, provides numerous examples and easy exercises, and I really enjoyed reading it.' ACM SIGACT News
'The book is beautifully structured and elegantly written in a compact yet accessible style. It is based on a course taught by the authors and has numerous problems, many provided with hints and or solutions. For these reasons, it is ideally suited for an advanced undergraduate or post graduate course.' The Times Higher Education Supplement