Keynotes -- Keynotes -- WiFi and RF Security -- A Scalable Wireless Routing Protocol Secure against Route Truncation Attacks -- Probabilistic Vehicular Trace Reconstruction Based on RF-Visual Data Fusion -- XML and Web Services Security -- Throwing a MonkeyWrench into Web Attackers Plans -- Security in OpenSocial-Instrumented Social Networking Services -- Security for XML Data Binding -- Watermarking and Multimedia Security -- Watermark Detection for Video Bookmarking Using Mobile Phone Camera -- Watermark-Based Authentication and Key Exchange in Teleconferencing Systems -- Efficient Format-Compliant Encryption of Regular Languages: Block-Based Cycle-Walking -- Analysis and Detection of Malicious Code and Risk Management -- Statistical Detection of Malicious PE-Executables for Fast Offline Analysis -- A Frame of Reference for Research of Integrated Governance, Risk and Compliance (GRC) -- Business and IT Continuity Benchmarking -- VoIP Security -- Peer-to-Peer VoIP Communications Using Anonymisation Overlay Networks -- SIP Proxies: New Reflectors in the Internet -- Analysis of Token and Ticket Based Mechanisms for Current VoIP Security Issues and Enhancement Proposal -- Biometrics -- Entropy of Graphical Passwords: Towards an Information-Theoretic Analysis of Face-Recognition Based Authentication -- Handwriting Biometric Hash Attack: A Genetic Algorithm with User Interaction for Raw Data Reconstruction -- Privacy Preserving Key Generation for Iris Biometrics -- Applied Cryptography -- Generalizations and Extensions of Redactable Signatures with Applications to Electronic Healthcare -- Chosen-Ciphertext Secure Certificateless Proxy Re-Encryption -- Detecting Hidden Encrypted Volumes -- Secure Communications -- Tor HTTP Usage and Information Leakage -- Secure Communication Using Identity Based Encryption -- Anonymous Client Authentication for Transport Layer Security.

This book constitutes the refereed proceedings of the 11th IFIP TC 6/TC 11 International Conference on Communications and Multimedia Security, CMS 2006, held in Linz, Austria, in May/June 2010. The 23 revised full papers presented were carefully reviewed and selected from 55 submissions. The papers are organized in topical sections on WiFi and RF security; XML and web services security; watermarking and multimedia security; analysis and detection of malicious code and risk management; VoIP security; biometrics; applied cryptography; and secure communications.