Petra Wohlmacher

According to our database, Petra Wohlmacher authored at least 10 papers between 1997 and 2002.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2002

Digital Watermarks Enabling E-Commerce Strategies: Conditional and User Specific Access to Services and Resources.

Jana Dittmann, Martin Steinebach, Petra Wohlmacher, Ralf Ackermann

EURASIP J. Adv. Signal Process., 2002

2001

Using Cryptographic and Watermarking Algorithms.

Jana Dittmann, Petra Wohlmacher, Klara Nahrstedt

IEEE Multim., 2001

Introduction to multimedia and security: protecting the media of the future - securing the future of the media.

Jana Dittmann, Petra Wohlmacher, Klara Nahrstedt

Proceedings of the 4th workshop on Multimedia & Security: New Challenges, 2001

Conditional Access for Business and M-Commerce Applications using Annotation Watermarks.

Jana Dittmann, Petra Wohlmacher, Ralf Ackermann

Proceedings of the Communications and Multimedia Security Issues of the New Century, 2001

2000

Sicherheitsanforderungen und Sicherheitsmechanismen bei IT-Systemen.

Petra Wohlmacher

EMISA Forum, 2000

Digital certificates: a survey of revocation methods.

Petra Wohlmacher

Proceedings of the ACM Multimedia 2000 Workshops, Los Angeles, CA, USA, October 30, 2000

Approaches to Multimedia and Security.

Klara Nahrstedt, Jana Dittmann, Petra Wohlmacher

Proceedings of the 2000 IEEE International Conference on Multimedia and Expo, 2000

Applications in Health Care using Public-Key Certificates and Attribute Certificates.

Petra Wohlmacher, Peter Pharow

Proceedings of the 16th Annual Computer Security Applications Conference (ACSAC 2000), 2000

1997

Visionen zur Chipkarte - Gedanken zu Entwicklungen und Anwendungen.

Petra Wohlmacher

Informationstechnik Tech. Inform., 1997

Die elektronische Geldbörse.

Susanne Hennecke, Petra Wohlmacher

Proceedings of the Verläßliche IT-Systeme - Zwischen Key Escrow und elektronischem Geld, 1997