Routing Algorithm Within the Multiple Non-Overlapping Paths’ Approach for Quantum Key Distribution Networks
2024

Routing Algorithm for Quantum Key Distribution Networks

publication Evidence: moderate

Author Information

Author(s): Kiktenko Evgeniy O., Tayduganov Andrey, Fedorov Aleksey K.

Primary Institution: National University of Science and Technology “MISIS”, Moscow, Russia

Hypothesis

Can a novel key routing algorithm improve the security and efficiency of quantum key distribution networks?

Conclusion

The proposed algorithm effectively distributes secure keys among nodes in a quantum key distribution network while maintaining security even if some trusted nodes are compromised.

Supporting Evidence

  • The algorithm ensures a balanced allocation of workload across QKD network links.
  • It maintains the information-theoretic security of keys even when some trusted nodes are compromised.
  • The testing demonstrated the algorithm's ability to distribute secure keys in an all-to-all manner.

Takeaway

This study created a new way to share secret keys between computers using special paths, making it safer even if some computers are not trustworthy.

Methodology

The study developed and tested a key routing algorithm on two quantum key distribution network models with 6 and 10 nodes.

Limitations

The algorithm's effectiveness depends on the network topology, which may not always allow for M non-overlapping paths between all node pairs.

Digital Object Identifier (DOI)

10.3390/e26121102

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