Cryptology ePrint Archive: Report 2009/468

Password Based Key Exchange with Hidden Elliptic Curve Public Parameters

Julien Bringer and Herve Chabanne and Thomas Icart

Abstract: We here describe a new Password-based Authenticated Key Exchange (PAKE) protocol based on elliptic curve cryptography. We prove it secure in the Bellare-Pointcheval-Rogaway (BPR) model. Our proposal is conceived in a such a way that it ensures that the elliptic curve public parameters remain private. This is important in the context of ID contactless devices as, in this case, it is easy to link these parameters with the nationality of the ID document owners.

Category / Keywords: PAKE, ECC, Privacy

Date: received 23 Sep 2009, last revised 27 Apr 2010

Contact author: julien bringer at gmail com

Available format(s): PDF | BibTeX Citation

Note: This paper is an extended version of the extended abstract "Password Based Key Exchange Protocols on Elliptic Curves which Conceal the Public Parameters" that will be presented at ACNS 2010.

Version: 20100427:141158 (All versions of this report)

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