An extension to Bellare and Rogaway (1993) model: resetting compromised long-term keys

Boyd, Colin A. and Choo, Kim-Kwang R. and Mathuria, Anish (2006) An extension to Bellare and Rogaway (1993) model: resetting compromised long-term keys. In: 11th Australasian Conference. on. Information Security and Privacy - ACISP 2006, 3 - 5 July 2006, Melbourne, Australia.

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DOI: 10.1007/11780656_31

Abstract

A security proof in the Bellare–Rogaway model and the random oracle model is provided for a protocol closely based on one originally proposed by Boyd (1996), which enjoys some remarkable efficiency properties. The model is extended so that it can detect a known weakness of the protocol that cannot be captured in the original model. An alternative protocol, provably secure in the extended model and the random oracle model, offering the same efficiency features as the original protocol is proposed. Moreover, our alternative protocol provides key confirmation and forward secrecy. It also allows session keys to be renewed in subsequent sessions without the server’s further involvement even in the event that the long-term key or the earlier session key have been compromised.

ID Code:	4421
Item Type:	Conference Paper
Keywords:	Key Agreement Protocols, Bellare, Rogaway Model, Provable Security
ISBN:	3540354581
ISSN:	1611-3349
Subjects:	Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > COMPUTER SOFTWARE (080300) > Software Engineering (080309) Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000)
Divisions:	QUT Faculties and Divisions > Faculty of Science and Technology
Copyright Owner:	Copyright 2006 Springer
Copyright Statement:	This is the author-version of the work. Conference proceedings published, by Springer Verlag, will be available via SpringerLink. http://www.springer.de/comp/lncs/ Lecture Notes in Computer Science
Deposited On:	08 Jun 2006
Last Modified:	23 Jan 2009 03:56

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