Secrecy via Sources and Channels -- A Secret Key - Secret Message Rate Trade-off Region

Details Secrecy via Sources and Channels -- A Secret Key - Secret Message Rate Trade-off Region Secrecy via Sources and Channels -- A Secret Key - Secret Message Rate Trade-off Region

2008-07-07

arxiv.org/abs/0807.0942v1

Computer Science

Information Theory

16 pages, 3 figures, expanded version of a paper of the same title which will appear at IEEE International Symposium on Inform

Scientific paper

Alice and Bob want to share a secret key and to communicate an independent message, both of which they desire to be kept secret from an eavesdropper Eve. We study this problem of secret communication and secret key generation when two resources are available -- correlated sources at Alice, Bob, and Eve, and a noisy broadcast channel from Alice to Bob and Eve which is independent of the sources. No other resource, in particular, no other channel is available. We are interested in characterizing the fundamental trade-off between the rates of the secret message and secret key. We present an achievable solution based on a separation architecture and prove its optimality for the parallel channels and sources case when each sub-channel and source component satisfies a degradation order (either in favor of the legitimate receiver or the eavesdropper).

Affiliated with

Also associated with

No associations

Rating

Secrecy via Sources and Channels -- A Secret Key - Secret Message Rate Trade-off Region does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Secrecy via Sources and Channels -- A Secret Key - Secret Message Rate Trade-off Region, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Secrecy via Sources and Channels -- A Secret Key - Secret Message Rate Trade-off Region will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-560844