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A new secret key agreement scheme in a four-terminal network

Babaheidarian, P ; Sharif University of Technology | 2011

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  1. Type of Document: Article
  2. DOI: 10.1109/CWIT.2011.5872145
  3. Publisher: 2011
  4. Abstract:
  5. 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
  6. Keywords:
  7. Secret key-private keys capacity region ; Source model secret key sharing ; Capacity regions ; Correlated sources ; Information-theoretic security ; Private key ; Secret key ; Secret key agreement ; Source models ; Information theory ; Access control
  8. Source: 12th Canadian Workshop on Information Theory, CWIT 2011, 17 May 2011 through 20 May 2011 ; May , 2011 , Pages 151-154 ; 9781457707438 (ISBN)
  9. URL: http://arxiv.org/abs/1103.5197