TY - GEN
T1 - Secret key generation with one communicator and a one-shot converse via hypercontractivity
AU - Liu, Jingbo
AU - Cuff, Paul
AU - Verdu, Sergio
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/9/28
Y1 - 2015/9/28
N2 - A new model of multi-party secret key agreement is proposed, in which one terminal called the communicator can transmit public messages to other terminals before all terminals agree on a secret key. A single-letter characterization of the achievable region is derived in the stationary memoryless case. The new model generalizes some other (old and new) models of key agreement. In particular, key generation with an omniscient helper is the special case where the communicator knows all sources, for which we derive a zero-rate one-shot converse for the secret key per bit of communication.
AB - A new model of multi-party secret key agreement is proposed, in which one terminal called the communicator can transmit public messages to other terminals before all terminals agree on a secret key. A single-letter characterization of the achievable region is derived in the stationary memoryless case. The new model generalizes some other (old and new) models of key agreement. In particular, key generation with an omniscient helper is the special case where the communicator knows all sources, for which we derive a zero-rate one-shot converse for the secret key per bit of communication.
UR - http://www.scopus.com/inward/record.url?scp=84969802858&partnerID=8YFLogxK
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U2 - 10.1109/ISIT.2015.7282547
DO - 10.1109/ISIT.2015.7282547
M3 - Conference contribution
AN - SCOPUS:84969802858
T3 - IEEE International Symposium on Information Theory - Proceedings
SP - 710
EP - 714
BT - Proceedings - 2015 IEEE International Symposium on Information Theory, ISIT 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE International Symposium on Information Theory, ISIT 2015
Y2 - 14 June 2015 through 19 June 2015
ER -