Two-key generation for a cellular model with a helper

Huishuai Zhang, Yingbin Liang, Lifeng Lai, Shlomo Shamai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


The problem of simultaneously generating two keys for a cellular model is investigated, in which each of four terminals, X0, X1, X2, and X3 observes one component of correlated sources. The terminal X0 wishes to generate secret keys K1 and K2 respectively, with terminals X1 and X2 under the help of terminal X3. They are allowed to communicate over a public channel. Both K1 and K2 are required to be concealed from an eavesdropper that has access to the public discussion. The key capacity region is established by designing a unified achievable strategy to achieve the cut-set outer bounds, which greatly simplifies the proof.

Original languageEnglish (US)
Title of host publicationIEEE International Symposium on Information Theory - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages5
ISBN (Print)9781467377041
StatePublished - Sep 28 2015
EventIEEE International Symposium on Information Theory, ISIT 2015 - Hong Kong, Hong Kong
Duration: Jun 14 2015Jun 19 2015


OtherIEEE International Symposium on Information Theory, ISIT 2015
CountryHong Kong
CityHong Kong


  • Cut-set bound
  • key capacity region
  • secret key generation
  • source model

ASJC Scopus subject areas

  • Applied Mathematics
  • Modeling and Simulation
  • Theoretical Computer Science
  • Information Systems

Fingerprint Dive into the research topics of 'Two-key generation for a cellular model with a helper'. Together they form a unique fingerprint.

Cite this