Generalized privacy amplification

This paper, provides a general treatment of privacy amplification by public discussion, a concept introduced by Bennett, Brassard, and Robert for a special scenario. Privacy amplification is a process that allows two parties to distil a secret key from a common random variable about which an eavesdr...

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Bibliographic Details
Published in:IEEE transactions on information theory 1995-11, Vol.41 (6), p.1915-1923
Main Authors: Bennett, C.H., Brassard, G., Crepeau, C., Maurer, U.M.
Format: Article
Language:English
Subjects:
Broadcasting
Channel capacity
Communications
Cryptographic protocols
Cryptography
Entropy
Information security
Information technology
Privacy
Random variables
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Summary:This paper, provides a general treatment of privacy amplification by public discussion, a concept introduced by Bennett, Brassard, and Robert for a special scenario. Privacy amplification is a process that allows two parties to distil a secret key from a common random variable about which an eavesdropper has partial information. The two parties generally know nothing about the eavesdropper's information except that it satisfies a certain constraint. The results have applications to unconditionally secure secret-key agreement protocols and quantum cryptography, and they yield results on wiretap and broadcast channels for a considerably strengthened definition of secrecy capacity.
ISSN:0018-9448
1557-9654
DOI:10.1109/18.476316