Team for Research in
Ubiquitous Secure Technology

Citation
Amin Aminzadeh Gohari, Venkatachalam Anantharam. "Communication For Omniscience by a Neutral Observer and Information-Theoretic Key Agreement of Multiple Terminals". IEEE International Symposium on Information Theory, 2007.

Abstract
Abstract—We derive a new upper bound on the secrecy capacity in the source model with eavesdropper which strictly improves the best currently known upper bound, i.e. the double intrinsic information bound proposed by Renner and Wolf [2]. Furthermore, unlike that bound, which is defined only in the case of two terminals, the new upper bound is not specific to the two terminals case. We define a problem of communication for omniscience by a neutral observer and establish the equivalence between this new problem and the problem of secret key agreement. Our result unifies and improves several earlier results in this area which had been studied separately principally the results of Csisz´ar and Narayan [1] and Renner and Wolf [2]).

Electronic downloads

• HTML

  Amin Aminzadeh Gohari, Venkatachalam Anantharam. <a
  href="http://www.truststc.org/pubs/248.html"
  >Communication For Omniscience by a Neutral Observer and
  Information-Theoretic Key Agreement of Multiple
  Terminals</a>,  IEEE International Symposium on
  Information Theory, 2007.

• Plain text

  Amin Aminzadeh Gohari, Venkatachalam Anantharam.
  "Communication For Omniscience by a Neutral Observer
  and Information-Theoretic Key Agreement of Multiple
  Terminals".  IEEE International Symposium on
  Information Theory, 2007.

• BibTeX

  @inproceedings{GohariAnantharam07_CommunicationForOmniscienceByNeutralObserverInformationTheoretic,
      author = {Amin Aminzadeh Gohari and Venkatachalam Anantharam},
      title = {Communication For Omniscience by a Neutral
                Observer and Information-Theoretic Key Agreement
                of Multiple Terminals},
      booktitle = { IEEE International Symposium on Information Theory},
      year = {2007},
      abstract = {Abstract—We derive a new upper bound on the
                secrecy capacity in the source model with
                eavesdropper which strictly improves the best
                currently known upper bound, i.e. the double
                intrinsic information bound proposed by Renner and
                Wolf [2]. Furthermore, unlike that bound, which is
                defined only in the case of two terminals, the new
                upper bound is not specific to the two terminals
                case. We define a problem of communication for
                omniscience by a neutral observer and establish
                the equivalence between this new problem and the
                problem of secret key agreement. Our result
                unifies and improves several earlier results in
                this area which had been studied separately
                principally the results of Csisz´ar and Narayan
                [1] and Renner and Wolf [2]).},
      URL = {http://www.truststc.org/pubs/248.html}
  }
  

Posted by Amin Aminzadeh Gohari on 29 Mar 2007.
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