Mario Wenning presents new strategies for trusted node security at OFC 2025
Presentation will reveal how optimized routing can improve QKD security without increasing costs
- Speakers: Mario Wenning, advanced technology engineer at Adva Network Security
- Topics: Improving end-to-end key security in trusted-node-based QKD networks with secret sharing
- When: Wednesday, April 2, 9:15 a.m. PT
- Where: OFC, Moscone Center, San Francisco, California, USA https://www.ofcconference.org/en-us/home/
Quantum key distribution (QKD) enables secure, quantum-safe communication, but scaling systems across long distances requires the use of trusted nodes. While these nodes are essential for extending network reach, they introduce potential vulnerabilities that make it challenging to balance security and efficiency – especially in complex mesh architectures designed for real-world applications.
In this session, Mario Wenning will explore strategies for enhancing trusted node security, introducing a secret sharing scheme that distributes encryption keys across multiple disjoint paths. He will present an optimized key routing algorithm that improves end-to-end security significantly while keeping cost increases very moderate. Attendees will also gain insights into how secret sharing can be effectively implemented in meshed, trusted-node-based QKD networks to maximize security while maintaining network efficiency.