Broadcast confidential and public messages

Jin Xu, Biao Chen

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

9 Scopus citations

Abstract

We consider in this paper a variation of Csiszár and Körner's model of broadcast channels with confidential messages. The transmitter sends both a confidential message and a non-confidential message (herein termed as public message) to receiver 1. While receiver 2 should be kept ignorant from the confidential message, we do not impose the requirement that the public message needs to be perfectly recovered by receiver 2. This more liberal treatment of the non-confidential message is perhaps a more reasonable model than Csiszár and Körner's model where the non-confidential message is required to be decoded by both receivers. Measuring ignorance by equivocation rate Re, a single-letter characterization is given of the achievable triples (R1, Re, Rp) where R1 and Rp are respectively the confidential and public message rates.

Original languageEnglish (US)
Title of host publicationCISS 2008, The 42nd Annual Conference on Information Sciences and Systems
Pages630-635
Number of pages6
DOIs
StatePublished - Sep 22 2008
EventCISS 2008, 42nd Annual Conference on Information Sciences and Systems - Princeton, NJ, United States
Duration: Mar 19 2008Mar 21 2008

Publication series

NameCISS 2008, The 42nd Annual Conference on Information Sciences and Systems

Other

OtherCISS 2008, 42nd Annual Conference on Information Sciences and Systems
CountryUnited States
CityPrinceton, NJ
Period3/19/083/21/08

Keywords

  • Broadcast channel
  • Confidential message
  • Secure communication

ASJC Scopus subject areas

  • Computer Science Applications
  • Information Systems
  • Control and Systems Engineering

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  • Cite this

    Xu, J., & Chen, B. (2008). Broadcast confidential and public messages. In CISS 2008, The 42nd Annual Conference on Information Sciences and Systems (pp. 630-635). [4558600] (CISS 2008, The 42nd Annual Conference on Information Sciences and Systems). https://doi.org/10.1109/CISS.2008.4558600