Cryptology ePrint Archive: Report 2004/071

An IBE Scheme to Exchange Authenticated Secret Keys

Benits Jr, Waldyr and Terada, Routo

Abstract: We present a variant of the Boneh \& Franklin Identiy-based Encryption {\sc ibe} scheme to derive an authenticated symmetric key-exchange protocol, when combined with a signature scheme. Our protocol uses {\sc ibe} as a secure channel to establish a symmetric key between two users and, after that, further communication can be done by symmetric cryptography, much faster than pairing-based cryptography.

Category / Keywords: public-key cryptography / Identity-based key-exchange protocol

Date: received 2 Mar 2004

Contact author: waldyrbenits at bol com br

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Version: 20040303:104602 (All versions of this report)

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