Cryptology ePrint Archive: Report 2007/219

A New Provably Secure Authentication and Key Agreement Protocol for SIP Using ECC

Liufei Wu1, 2, Yuqing Zhang1, Fengjiao Wang1

Abstract: SIP is playing a key role in the IP based services and has been chosen as the protocol for multimedia application in 3G mobile networks by the Third-Generation Partnership Project. The authentication mechanism proposed in SIP specification is HTTP digest based authentication, which allows malicious parties to impersonate other parties or to charge calls to other parties, furthermore, other security problems, such as off-line password guessing attacks and server spoofing, are also needed to be solved. This paper proposes a new authenticated key exchange protocol NAKE, which can solve the existed problems in the original proposal. The NAKE protocol is provably secure in CK security model, thus it inherits the corresponding security attributes in CK security model.

Category / Keywords: cryptographic protocols / SIP; NAKE protocol; CK security model; Provable security

Date: received 7 Jun 2007

Contact author: wlf0701 at hotmail com

Available format(s): PDF | BibTeX Citation

Version: 20070608:203601 (All versions of this report)

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