Foundations and Practice of Security [electronic resource] : 5th International Symposium, FPS 2012, Montreal, QC, Canada, October 25-26, 2012, Revised Selected Papers / edited by Joaquin Garcia-Alfaro, Frédéric Cuppens, Nora Cuppens-Boulahia, Ali Miri, Nadia Tawbi.

Cryptography and Information Theory -- MaD2: An Ultra-Performance Stream Cipher for Pervasive Data Encryption -- Proofs of Retrievability via Fountain Code -- MARC: Modified ARC4 -- Detection of HTTP-GET Attack with Clustering and Information Theoretic Measurements -- Key Management and Cryptographic Protocols -- A Generic Algebraic Model for the Analysis of Cryptographic-Key Assignment Schemes -- Message Transmission and Key Establishment: Conditions for Equality of Weak and Strong Capacities -- COMPASS: Authenticated Group Key Agreement from Signcryption -- Privacy and Trust -- Classifying Online Social Network Users through the Social Graph -- A Formal Derivation of Composite Trust -- Policies and Applications Security -- Policy Administration in Tag-Based Authorization -- Enabling Dynamic Security Policy in the Java Security Manager -- A Novel Obfuscation: Class Hierarchy Flattening -- RESource: A Framework for Online Matching of Assembly with Open Source Code -- Touchjacking Attacks on Web in Android, iOS, and Windows Phone -- Network and Adaptive Security -- Short-Term Linkable Group Signatures with Categorized Batch Verification -- GHUMVEE: Efficient, Effective, and Flexible Replication -- Extracting Attack Scenarios Using Intrusion Semantics -- On Securely Manipulating XML Data -- Mitigating Collaborative Blackhole Attacks on DSR-Based Mobile Ad Hoc Networks -- QoS Aware Adaptive Security Scheme for Video Streaming in MANETs -- A Case Study of Side-Channel Analysis Using Decoupling Capacitor Power Measurement with the OpenADC -- Short Papers -- Towards Modelling Adaptive Attacker's Behaviour -- Scalable Deniable Group Key Establishment -- Information-Theoretic Foundations of Differential Privacy.