Cryptology ePrint Archive: Report 2003/144

ID-based tripartite key agreement with signatures

Divya Nalla

Abstract: This paper proposes a new identity based tripartite key agreement protocol which is more efficient than the existing ID-based tripartite protocol. This protocol is based on the Joux's protocol for key agreement, and introduces signature along with key agreement to overcome man-in-the-middle attacks and to provide authentication. The new protocol resists existential forgeries against adaptively chosen message attacks under the random oracle model.

Category / Keywords: cryptographic protocols / Key Agreement, tripartite, elliptic curves, Weil pairing, cryptography, Identity based, ID-based, Diffie-Hellman, Key Agreement Protocols, Signature, ID-based signatures

Date: received 23 Jul 2003

Contact author: divyanalla at yahoo com

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Version: 20030724:190408 (All versions of this report)

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