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 present novel research on all theoretical and practical aspects of privacy technologies.

This book constitutes the thoroughly refereed post-conference proceedings of the 15th International Conference on Financial Cryptography and Data Security, FC 2011, held in Gros Islet, St. Lucia, in February/March 2011. The 16 revised full papers and 10 revised short papers presented were carefully reviewed and selected from 65 initial submissions. The papers cover all aspects of securing transactions and systems and feature current research focusing on fundamental and applied real-world deployments on all aspects surrounding commerce security; as well as on systems security and...