A New Secret Key Agreement Scheme in a Four-Terminal Network
2011 (English)In: 12th Canadian Workshop on Information Theory, CWIT 2011, IEEE , 2011, 151-154 p.Conference paper (Refereed)
A new scenario for simultaneously generating a secret key and two private keys among three Terminals in the presence of an external eavesdropper is considered. Terminals 1, 2 and 3 intend to share a common secret key concealed from the external eavesdropper (Terminal 4) and simultaneously, each of Terminals 1 and 2 intends to share a private key with Terminal 3 while keeping it concealed from each other and from Terminal 4. All four Terminals observe i.i.d. outputs of correlated sources and there is a public channel from Terminal 3 to Terminals 1 and 2. An inner bound of the secret key-private keys capacity region is derived and the single letter capacity regions are obtained for some special cases.
Place, publisher, year, edition, pages
IEEE , 2011. 151-154 p.
information-theoretic security, secret key-private keys capacity region, source model secret key sharing
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-96685DOI: 10.1109/CWIT.2011.5872145ScopusID: 2-s2.0-79959878439ISBN: 978-145770743-8OAI: oai:DiVA.org:kth-96685DiVA: diva2:532021
12th Canadian Workshop on Information Theory, CWIT 2011; Kelowna,BC; 17 May 2011 through 20 May 2011
QC 201206202012-06-082012-06-082012-06-20Bibliographically approved