Group secret key agreement over state-dependent wireless broadcast channels

We consider a group of m trusted nodes that aim to create a shared secret key K, using a state-dependent wireless broadcast channel that exists from one of the honest nodes to the rest of the nodes including a passive eavesdropper Eve. All of the trusted nodes can also discuss over a cost-free and unlimited rate public channel which is also observed by Eve. For this setup, we develop an information-theoretically secure secret key agreement protocol. We show the optimality of this protocol for linear deterministic wireless broadcast channels as well as in the high-SNR regime for wireless channels with large dynamic range over channel states.


Published in:
2011 Ieee International Symposium On Information Theory Proceedings (Isit), -
Presented at:
IEEE International Symposium on Information Theory (ISIT'11), St Petersburg, Russia, July 31-August 5, 2011
Year:
2011
Publisher:
Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa
ISBN:
978-1-4577-0595-3
Laboratories:




 Record created 2012-01-25, last modified 2018-03-17

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