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CISC
2007
Springer

Deniable Authentication on the Internet

10 years 5 months ago
Deniable Authentication on the Internet
Deniable authentication is a technique that allows one party to send messages to another while the latter can not prove to a third party the fact of communication. In this paper, we first formalize a natural notion of deniable security and naturally extend the basic authenticator theorem by Bellare et al. [2] to the setting of deniable authentication. Of independent interest, this extension is achieved by defining a deniable MT-authenticator via a game. This game is essentially borrowed from the notion of universal composition [8] although we do not assume any result or background about it. Then we construct two deniable MT-authenticators: uncontrollable random oracle based and the PKI based, both of which are just 3-round protocols. The second construction assumes the receiver owns a secret key. Such a setup assumption is very popular in the real world. (Without this assumption), all the previous protocols do not have a widely satisfiable performance when applied in the Internet-li...
Shaoquan Jiang
Added 07 Jun 2010
Updated 07 Jun 2010
Type Conference
Year 2007
Where CISC
Authors Shaoquan Jiang
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