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A Server Spoofing Attack on Zhang et al. SIP Authentication Protocol

Mourade Azrour, Yousef Farhaoui, Mohammed Ouanan

Abstract



In recent years, Internet and online services are very important in humane life. Telephony over IP (ToIP) is one of those services. Session Initiation Protocol (SIP) is the most signaling protocol used by ToIP, which is delivered in unsecured public network, the authentication of SIP is become more and more important. In 2013, Zhang et al. have proposed an improved authentication protocol for SIP. Then, they showed that their protocol is secured against various attacks. However, in this work we prove that Zhang et al.’s protocol is unsecured against server spoofing attack. As result, we propose a new SIP authentication protocol to overcome the weakness. The performance analysis shows that our protocol is secured against different attacks and it is efficient. Furthermore, we have used AVISPA (Automated Validation of Internet Security Protocols and Applications) tool to simulate the proposed protocol, the result obtained confirms that our protocol is SAFE under OFMC and CL-AtSe models, so our proposed scheme is secure against active and passive attacks.

Keywords


Session Initiation Protocol; security; authentication protocol; Elliptic Curve Cryptography; Smart card; server spoofing attack.

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