Invited Talk -- Developing Secure, Trusted and Auditable Services for e-Business: An Autonomic Computing Approach -- Trust -- A Mechanism for Trust Sustainability Among Trusted Computing Platforms -- Enabling Trust-Awareness in Naming Services -- Virtual Trust in Distributed Systems -- Modelling Trust Relationships in Distributed Environments -- Access Control -- Dynamically Changing Trust Structure in Capability Based Access Control Systems -- On the Design of a New Trust Model for Mobile Agent Security -- e-Business Issues -- Balancing Privacy and Trust in Electronic Marketplaces -- Reducing Server Trust in Private Proxy Auctions -- Secure Ad-Hoc mBusiness: Enhancing WindowsCE Security -- Role-Based Privilege Management Using Attribute Certificates and Delegation -- Privacy -- Consent as a Threat. A Critical Approach to Privacy Negotiation in e-Commerce Practices -- Dealing with Privacy Obligations: Important Aspects and Technical Approaches -- Offer Privacy in Mobile Agents Using Conditionally Anonymous Digital Signatures -- Privacy Preserving Data Generation for Database Application Performance Testing -- e-Voting -- An Efficient Mixnet-Based Voting Scheme Providing Receipt-Freeness -- Trust in Public Administration e-Transactions: e-Voting in the UK -- Protocols -- An Unbalanced Protocol for Group Key Exchange -- Certified E-Mail with Temporal Authentication: An Improved Optimistic Protocol -- Efficient Password-Based Group Key Exchange -- Optimality in Asynchronous Contract Signing Protocols -- Copyright Protection -- Development of Visible Anti-copy Patterns -- Holographic Image Watermarking for Secure Content -- Hybrid Fingerprint Matching on Programmable Smart Cards -- Protecting ASF Movie on VOD -- Multicast -- DiffSig: Differentiated Digital Signature for Real-Time Multicast Packet Flows -- Large-Scale Pay-As-You-Watch for Unicast and Multicast Communications -- PKI, Signature Schemes -- Reducing the Communication Overhead of an Offline Revocation Dictionary -- Breaking Down Architectural Gaps in Smart-Card Middleware Design -- On the Security of the Lee-Hwang Group-Oriented Undeniable Signature Schemes.

Sincerely welcome to proceedings of the 1st International Conference on Trust and Privacy in Digital Business, Zaragoza, Spain, held from August 30th to September 1st, 2004. This conference was an outgrowth of the two successful TrustBus inter- tional workshops, held in 2002 and 2003 in conjunction with the DEXA conferences in Aix-en-Provence and in Prague. Being the first of a planned series of successful conferences it was our goal that this event would initiate a forum to bring together researchers from academia and commercial developers from industry to discuss the state of the art of technology for establishing trust and privacy in digital business. We thank you all the attendees for coming to Zaragoza to participate and debate the new emerging advances in this area. The conference program consisted of one invited talk and nine regular technical papers sessions. The invited talk and keynote speech was delivered by Ahmed Patel from the Computer Networks and Distributed Systems Research Group, University College Dublin, Ireland on “Developing Secure, Trusted and Auditable Services for E-Business: An Autonomic Computing Approach”. A paper covering his talk is also contained in this book. The regular paper sessions covered a broad range of topics, from access control - sues to electronic voting, from trust and protocols to digital rights management. The conference attracted close to 100 submissions of which the program committee - cepted 29 papers for presentation and inclusion in the conference proceedings.