Invited Lecture.- Biometrics – How to Put to Use and How Not at All?.- Trust.- A Map of Trust between Trading Partners.- Implementation of a TCG-Based Trusted Computing in Mobile Device.- A Model for Trust Metrics Analysis.- Authentication, Authorization and Access Control.- Patterns and Pattern Diagrams for Access Control.- A Spatio-temporal Access Control Model Supporting Delegation for Pervasive Computing Applications.- A Mechanism for Ensuring the Validity and Accuracy of the Billing Services in IP Telephony.- Reputation Systems.- Multilateral Secure Cross-Community Reputation Systems for Internet Communities.- Fairness Emergence through Simple Reputation.- Combining Trust and Reputation Management for Web-Based Services.- Security Policies and Identity Management.- Controlling Usage in Business Process Workflows through Fine-Grained Security Policies.- Spatiotemporal Connectives for Security Policy in the Presence of Location Hierarchy.- BusiROLE: A Model for Integrating Business Roles into Identity Management.- Intrusion Detection and Applications of Game Theory to IT Security Problems.- The Problem of False Alarms: Evaluation with Snort and DARPA 1999 Dataset.- A Generic Intrusion Detection Game Model in IT Security.- On the Design Dilemma in Dining Cryptographer Networks.- Privacy.- Obligations: Building a Bridge between Personal and Enterprise Privacy in Pervasive Computing.- A User-Centric Protocol for Conditional Anonymity Revocation.- Preservation of Privacy in Thwarting the Ballot Stuffing Scheme.

This book constitutes the refereed proceedings of the 5th International Conference on Trust and Privacy in Digital Business, TrustBus 2008, held in Turin, Italy, in September 2008 in conjunction with DEXA 2008. The 18 revised full papers presented together with 1 invited keynote lecture were carefully reviewed and selected from numerous submissions. The papers are organized in topical sections on trust, authentication, authorization and access control, reputation systems, security policies and identity management, intrusion detection and applications of game theory to IT security problems, and privacy.