Cryptology ePrint Archive: Report 2005/108

Efficient Identity-Based and Authenticated Key Agreement Protocol

Yongge Wang

Abstract: Several identity based and authenticated key agreement protocols have been proposed in recent years and all of them have been shown to be non-secure. It remains an open question to design secure identity based and authenticated key agreement protocols. In this paper, we propose an efficient identity-based and authenticated key agreement protocol IDAK using Weil/Tate pairing. A security model for identity based key agreement protocol is established and the security properties of IDAK are proved in this model with random oracle. In particular, it is shown that the IDAK protocol possesses all characteristics that a secure key agreement should have.

Category / Keywords: cryptographic protocols / identity based key agreement protocol

Date: received 6 Apr 2005, last revised 11 Oct 2005

Contact author: yonwang at uncc edu

Available format(s): Postscript (PS) | Compressed Postscript (PS.GZ) | PDF | BibTeX Citation

Note: Added some performance evaluation and added some more related protocols

Version: 20051012:021410 (All versions of this report)

Short URL: ia.cr/2005/108

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