This book constitutes the thoroughly refereed postproceedings of the 5th International Workshop on Privacy Enhancing Technologies, PET 2006, held in Cavtat, Croatia, in May and June 2005. The 17 revised full papers presented were carefully selected from 74 submissions during two rounds of reviewing and improvement. The papers address most current privacy enhancing technologies in various application contexts.

This book contains the revised selected papers of the Second Workshop on Real-Life Cryptographic Protocols and Standardization, RLCPS 2011, and the Second Workshop on Ethics in Computer Security Research, WECSR 2011, held in conjunction with the 15th International Conference on Financial Cryptography and Data Security, FC 2010, in Rodney Bay, St. Lucia, in February/March 2011. The 16 revised papers presented were carefully reviewed and selected from numerous submissions. The papers cover topics ranging from anonymity and privacy, authentication and identification, biometrics, commercial...