"Whether you are a beginner or looking to increase your knowledge of contemporary cryptography, this comprehensive book puts all aspects of this important topic into perspective. Oppliger provides an accurate introduction to the current state-of-the-art in modern cryptography and his book offers a practical understanding of essential tools and applications to help with your daily work. There is complete coverage of the underpinnings and basical principals of cryptography to help you fully master the material. From mathematical fundamentals and overview of cryptography systems to details on unkeyed, secret key, and public key cryptosystems, this twenty-one chapter authoritative reference provides a solid working knowledge of the latest and most critical concepts, techniques, and systems in contemporary cryptography."
---The Cryptogram, April 2006

"This is the state of the art in cryptography today at the conceptual level.”
---Books-On-Line, June 2005

“This is the book colleagues and I wish we had over the last decade when teaching our graduate cryptography class. Rolf has done a wonderful job of making so much important information accessible.”
---From the foreword by Gene Spafford

Introduction – Cryptology. Cryptographic Systems. Historical Background Information. Outline of the Book.

Cryptographic Systems – Unkeyed Cryptosystems. Secret Key Cryptosystems. Public Key Cryptosystems. Final Remarks.

Part I: Mathematical Fundamentals

Discrete Mathematics – Algebraic Basics. Integer Arithmetic. Modular Arithmetic. Elliptic Curves. Final Remarks.

Probability Theory – Basic Terms and Concepts. Random Variables. Final Remarks.

Information Theory – Introduction. Entropy. Redundancy. Final Remarks.

Complexity Theory – Preliminary Remarks. Introduction. Asymptotic Order Notation. Efficient Computations. Computational Models. Complexity Classes. Final Remarks

Part II: Unkeyed Cryptosystems

 One-Way Functions – Introduction. Conjectured Candidate One-Way Functions. Integer Factoring Algorithms. Computing Discrete Logarithms. Hard-Core Predicates. Elliptic Curve Cryptography. Final Remarks.

Cryptographic Hash Functions – Introduction. Merkle-Damgaard Construction. Exemplary Cryptographic Hash Functions. Final Remarks.

Random Bit Generators – Introduction. Realizations and Implementations. Statistical Randomness Testing. Final Remarks.

Part III: Secret Key Crytosystems

Symmetric Encryption Systems – Introduction. Block Ciphers. Stream Ciphers. Perfectly Secure Encryption. Final Remarks.

Message Authentication Codes – Introduction. Computationally Secure MACs. Information-Theoretically Secure MACs. Final Remarks.

Pseudo-Random Bit Generators – Introduction. Cryptographically Secure PRBGs. Final Remarks.

Pseudo-Random Functions – Introduction. Constructions. Random Oracle Model. Final Remarks.

Part IV: Public Key Cryptosystems

Asymmetric Encryption Systems – Introcution. Merkle’s Puzzles. RSA. Rabin. ElGamal. Identity-Based Encryption. Probabilistic Encryption. Optimal Asymmetric Encryption Padding. Final Remarks.

Digital Signature Systems – Introduction. RSA. ElGamal. Schnorr. DSA. One-Time Signature Systems. Provably Secure Digital Signature Systems. Digital Signatures for Streams. Variations. Final Remarks.

Key Establishment – Introduction. Key Distribution Protocols. Key Agreement Protocols. Quantum Key Exchange. Final Remarks.

Enti

Rolf Oppliger is the founder and owner of eSECURITY Technologies, works for the Swiss federal administration, and teaches at the University of Zürich. He is also the author of Security Technologies for the World Wide Web, Second Edition, Internet and Intranet Security, Second Edition and Secure Messaging with PGP and S/MIME (Artech House, 2003, 2002, 2001) among other titles. Dr. Oppliger received his M.Sc. and Ph.D. in Computer Science from the University of Berne, Switzerland, and the Venia Legendi in Computer Science from the University of Zürich, Switzerland.