This book constitutes the thoroughly refereed post-proceedings of the 6th International Workshop on Privacy Enhancing Technologies， PET 2006， held in Cambridge， UK， in June 2006 co-located with WEIS 2006， the Workshop on the Economics of Information Security， and WOTE 2006， the IAVoSS Workshop On Trustworthy Elections.The 24 revised full papers presented were carefully selected from 91 submissions during two rounds of reviewing and improvement. The papers both from academia and industry present novel research on all theoretical and practical aspects of privacy technologies， as well as experimental studies of fielded systems.

This book constitutes the refereed proceedings of the 8th International Symposium on Stabilization， Safety， and Security of Distributed Systems （formerly Symposium on Self-Stabilizing Systems）， SSS 2006， held in Dallas， TX， USA in November 2006.The 36 revised full papers and 12 revised short papers presented together with the extended abstracts of 2 invited lectures were carefully reviewed and selected from 155 submissions. The papers address all aspects of self-stabilization， safety and security， recovery oriented systems and programing， from theoretical contributions， to reports of the actual experience of applying the principles of self-stabilization to static and dynamic systems.

This book constitutes the refereed proceedings of the 11th European Symposium on Research in Computer Security， ESORICS 2006， held in Hamburg， Germany， in September 2006.The 32 revised full papers presented were carefully reviewed and selected from 160 submissions. ESORICS is confirmed as the European research event in computer security; it presents original research contributions， case studies and implementation experiences addressing any aspect of computer security - in theory， mechanisms， applications， or practical experience.

This book constitutes the refereed proceedings of the 8th International Workshop on Cryptographic Hardware and Embedded Systems， CHES 2006， held in Yokohama， Japan in October 2006.The 32 revised full papers presented together with 3 invited talks were carefullyreviewed and selected from 112 submissions. The papers are organized in topical sections on side channels， low resources， hardware attacks and countermeasures， special purpose hardware， efficient algorithms for embedded processors， side channels， hardware attacks and countermeasures， efficient hardware， trusted computing， side channels， hardware attacks and countermeasures， as well as efficient hardware.

This book constitutes the refereed proceedings of the Third VLDB 2006 International Workshop on Secure Data Management， SDM 2006， held in Seoul， Korea in September 2006 in conjunction with VLDB 2006.The 13 revised full papers presented were carefully reviewed and selected from 33 submissions. The papers are organized in topical sections on privacy protection， privacy preserving data management， access control， and database security.

This book constitutes the refereed proceedings of the Third International Conference on Trust and Privacy in Digital Business， TrustBus 2006， held in Krakow， Poland in September 2006 in conjunction with DEXA 2006.The 24 revised full papers presented were carefully reviewed and selected from 70 submissions. The papers are organized in topical sections on privacy and identity management， security and risk management， security requirements and development， privacy enhancing technologies and privacy management， access control models， trust and reputation， security protocols， and security and privacy in mobile environments.

This book constitutes the refereed proceedings of the Third International Workshop on Fault Diagnosis and Tolerance in Cryptography， FDTC 2006， held in Yokohama， Japan in October 2006.The 12 revised papers of FDTC 2006 are presented together with 9 papers from FDTC 2004 and FDTC 2005 that passed a second round of reviewing. They all provide a comprehensive introduction to the issues faced by designers of robust cryptographic devices and to the currently available methodologies and techniques for protecting these devices against fault injection attacks. The papers are organized in topical sections on attacks on public key systems， protection of public key systems， attacks on and protection of symmetric key systems， models for fault attacks on cryptographic devices， fault-resistant arithmetic for cryptography， as well as fault attacks and other security threats.

This book constitutes the refereed proceedings of the 5th International Conference on Security and Cryptology for Networks， SCN 2006， held in Maiori， Italy in September 2006.The 24 revised full papers presented together with the abstract of an invited talk were carefully revised and selected from 81 submissions. The papers are organized in topical sections on distributed systems security， signature schemes variants， block cipher analysis， anonymity and e-commerce， public key encryption and key exchange， secret sharing， symmetric key cryptanalisis and randomness， applied authentication， and public key related cryptanalisis.

This book constitutes the refereed proceedings of the First International Workshop on Security， IWSEC 2006， held in Kyoto， Japan in October 2006.The 30 revised full papers presented were carefully reviewed and selected from 147 submissions. The papers are organized in topical sections on signatures， security evaluation， authentication， encryption and key exchange， network security， security for multimedia， cryptanalysis and implementation， as well as access control.

This book constitutes the refereed proceedings of the 4th International Conference on Applied Cryptography and Network Security， ACNS 2006， held in Singapore in June 2006.The 33 revised full papers presented were carefully reviewed and selected from 218 submissions. The papers are organized in topical sections on intrusion detection and avoidance， cryptographic applications， DoS attacks and countermeasures， key management， cryptanalysis， security of limited devices， cryptography， authentication and Web security， ad-hoc and sensor network security， cryptographic constructions， and security and privacy.