This book constitutes the thoroughly refereed post-proceedings of the 7th International Symposium on Privacy Enhancing Technologies, PET 2007, held in conjunction with WOTE 2007, the IAVoSS Workshop on Trustworthy Elections. The papers cover design and realization of privacy services for the internet and other communication networks and present novel research on all theoretical and practical aspects of privacy technologies, as well as experimental studies of fielded systems.

Inhalt
Attacking Unlinkability: The Importance of Context.- A Fresh Look at the Generalised Mix Framework.- Two-Sided Statistical Disclosure Attack.- A Family of Dunces: Trivial RFID Identification and Authentication Protocols.- Louis, Lester and Pierre: Three Protocols for Location Privacy.- Efficient Oblivious Augmented Maps: Location-Based Services with a Payment Broker.- Pairing-Based Onion Routing.- Nymble: Anonymous IP-Address Blocking.- Improving Efficiency and Simplicity of Tor Circuit Establishment and Hidden Services.- Identity Trail: Covert Surveillance Using DNS.- Sampled Traffic Analysis by Internet-Exchange-Level Adversaries.- Browser-Based Attacks on Tor.- Enforcing P3P Policies Using a Digital Rights Management System.- Simplified Privacy Controls for Aggregated Services Suspend and Resume of Personal Data.- Performance Comparison of Low-Latency Anonymisation Services from a User Perspective.- Anonymity in the Wild: Mixes on Unstructured Networks.