Advanced Communications and Multimedia Security

On the Security of a Structural Proven Signer Ordering Multisignature Scheme.- Renewing Cryptographic Timestamps.- Implementing Elliptic Curve Cryptography.- A New Asymmetric Fingerprinting Framework Based on Secret Sharing.- Authentication of Transit Flows and K-Siblings One-Time Signature.- Improving the Functionality of Syn Cookies.- A Mac-Layer Security Architecture for Cable Networks.- Towards Authentication Using Mobile Devices.- Core: A Collaborative Reputation Mechanism to Enforce Node Cooperation in Mobile Ad Hoc Networks.- Enabling Adaptive and Secure Extranets.- Multiple Layer Encryption for Multicast Groups.- Access Control, Reverse Access Control and Replication Control in a World Wide Distributed System.- The Coras Approach for Model-Based Risk Management Applied to E-Commerce Domain.- Towards Security Architecture for Future Active Ip Networks.- Combined Fingerprinting Attacks Against Digital Audio Watermarking: Methods, Results and Solutions.- Selective Encryption of Visual Data.- Biometric Authentication — Security and Usability.- Automatic Authentication Based on the Austrian Citizen Card.- An Open Interface Enabling Secure E-Government.- Cadenus Security Considerations.- Validation of Long-Term Signatures.- Digital Signatures and Electronic Documents: A Cautionary Tale.