History -- Mary of Guise's enciphered letters -- About Professionalisation in the Intelligence Community: the French Cryptologists (ca 1870-ca 1945) -- Myths and legends -- The One-Time Pad and the Index of Coincidence -- Technology - Past, Present, Future -- The Fall of a Tiny Star -- Post-Quantum Cryptography: State of the Art -- What is the future of cryptography? -- Efficient Cryptographic Implementations -- Bitsliced High-Performance AES-ECB on GPUs -- Buying AES Design Resistance with Speed and Energy -- Double-Speed Barrett Moduli -- Treachery and Perfidy -- Failure is Also an Option -- How to (Carefully) Breach a Service Contract? -- Information Security -- SpoofKiller: You can teach people how to pay, but not how to pay attention -- Cyber-Physical Systems Security -- Practical Techniques Building on Encryption for Protecting and Managing Data in the Cloud -- Cryptanalysis -- Cryptography as an Attack Technology: Proving the RSA/Factoring Kleptographic Attack -- Dual EC: A Standardized BackDoor -- An Improved Differential Attack on Full GOST -- Cryptographic Hash Functions and Expander Graphs: The End of the Story? -- Side-Channel Attacks -- Polynomial Evaluation and Side Channel Analysis -- Photonic Power Firewalls -- A Heuristic Approach to Assist Side Channel Analysis of the Data Encryption Standard -- Improving the Big Mac attack on Elliptic Curve Cryptography -- Randomness -- Randomness testing: result interpretation and speed -- A fully-digital Chaos-based Random Bit Generator -- Embedded System Security -- Secure Application Execution in Mobile Devices -- Hardware-enforced Protection against Buffer Overflow using Masked Program Counter -- Public-Key Cryptography -- Hierarchical Identities from Group Signatures and Pseudonymous Signatures -- Secure ElGamal-type Cryptosystems Without Message Encoding -- Safe-Errors on SPA Protected implementations with the Atomicity Technique -- Models and Protocols -- Clever Arbiters versus Malicious Adversaries: On the Gap between Known-Input Security and Chosen-Input Security -- Security Analysis of the Modular Enhanced Symmetric Role Authentication (mERA) Protocol -- Crypto Santa. .

This Festschrift volume is published in honor of David Kahn and is the outcome of a Fest held in Luxembourg in 2010 on the occasion of David Kahn's 80th birthday. The title of this books leans on the title of a serious history of cryptology named "The Codebreakers", written by David Kahn and published in 1967. This book contains 35 talks dealing with cryptography as a whole. They are organized in topical section named: history; technology - past, present, future; efficient cryptographic implementations; treachery and perfidy; information security; cryptanalysis; side-channel attacks; randomness embedded system security; public-key cryptography; and models and protocols. .