Secure Internet Phone. - Patrick Horster; Martin Schaffer; Peter Schartner; Dieter Sommer (Communications and Multimedia Security, 2001)

Video Surveillance: A Distributed Approach to Protect Privacy. - Martin Schaffer; Peter Schartner (Communications and Multimedia Security, 2005)

Key Escrow with Tree-Based Access Structure. - Martin Schaffer; Peter Schartner (MMM-ACNS, 2005)

Unique User-Generated Digital Pseudonyms. - Peter Schartner; Martin Schaffer (MMM-ACNS, 2005)

Anonymous Authentication with Optional Shared Anonymity Revocation and Linkability. - Martin Schaffer; Peter Schartner (CARDIS, 2006)

Universally Unique Identifiers: How To Ensure Uniqueness While Protecting The Issuer's Privacy. - Martin Schaffer; Peter Schartner; Stefan Rass (Security and Management, 2007)

Protecting Privacy in Medical Databases - Efficient Local Generation of System-Wide Unique Health IDs. - Peter Schartner; Martin Schaffer (HEALTHINF (1), 2008)

Efficient Privacy-Enhancing Techniques for Medical Databases. - Peter Schartner; Martin Schaffer (BIOSTEC (Selected Papers), 2008)

How to protect privacy in floating car data systems. - Stefan Rass; Simone Fuchs; Martin Schaffer; Kyandoghere Kyamakya (Vehicular Ad Hoc Networks, 2008)

Fusion Discrete Logarithm Problems - Martin Schaffer; Stefan Rass (CoRR, 2010)