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As various applications of SIP-based VoIP networks have been proposed, security has become one of the big research challenges and is receiving increasing attention. In this paper, we present a certificate-based two party authentication key agreement protocol for SIP-based VoIP networks and prove its security in the random oracle model. Additionally, our scheme could be used for multiple CAs environment...
In order to resolve the SPIT (Spam over Internet telephony) security risk in the ALL-IP convergence network, a detection and prevention method based on feedback judgment is proposed in this paper. Introducing the participation of the users and combining the mechanism of trust and reputation can make the direct and indirect use of feedback simple effective and lossless. Improved inference algorithm...
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