Foreword from the Program Chairs These proceedings contain the papers selected for presentation at the 10th - ropean Symposium on Research in Computer Security (ESORICS), held S- tember 12–14, 2005 in Milan, Italy.

Computerized Voting Machines: A View from the Trenches.- XML Access Control with Policy Matching Tree.- Semantic Access Control Model: A Formal Specification.- A Generic XACML Based Declarative Authorization Scheme for Java.- Specification and Validation of Authorisation Constraints Using UML and OCL.- Unified Index for Mobile Object Data and Authorizations.- On Obligations.- A Practical Voter-Verifiable Election Scheme.- Machine-Checked Security Proofs of Cryptographic Signature Schemes.- Sanitizable Signatures.- Limits of the Cryptographic Realization of Dolev-Yao-Style XOR.- Security-Typed Languages for Implementation of Cryptographic Protocols: A Case Study.- Augmented Oblivious Polynomial Evaluation Protocol and Its Applications.- Using Attack Trees to Identify Malicious Attacks from Authorized Insiders.- An Efficient and Unified Approach to Correlating, Hypothesizing, and Predicting Intrusion Alerts.- Towards a Theory of Intrusion Detection.- On Scalability and Modularisation inthe Modelling of Network Security Systems.- Sybil-Resistant DHT Routing.- Botnet Tracking: Exploring a Root-Cause Methodology to Prevent Distributed Denial-of-Service Attacks.- Quantifying Probabilistic Information Flow in Computational Reactive Systems.- Enforcing Non-safety Security Policies with Program Monitors.- Soundness of Formal Encryption in the Presence of Key-Cycles.- Privacy Preserving Clustering.- Abstractions Preserving Parameter Confidentiality.- Minimal Disclosure in Hierarchical Hippocratic Databases with Delegation.- Security Notions for Disk Encryption.- Local View Attack on Anonymous Communication.- Browser Model for Security Analysis of Browser-Based Protocols.