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Author(s): |
Min Shen, College of Communications and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,Chin
Jing Cai, College of Communications and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,Chin
Haipeng He, College of Communications and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,Chin |
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Abstract: |
Session Initiation Protocol (SIP) is an important protocol adopted by the 3rd Generation Partnership Project(3GPP) for the IP Multimedia Subsystem (IMS) and VoIP Compare with the traditional C/S model SIP communication systems,combining VoIP with Peer-to-Peer technology is definitely a new attempt. Facing the complex and open Internet environment,the integration of P2P and SIP has brought new security risks,the security of P2P-SIP needs to be improved and enhanced. This paper analyzded the both threats of Registration Hijacking and Tearing Down Sessions to P2P-SIP at fist,and then provided the security solution aimed to the both treats.In this paper, the solutions about the both threats are presented in detail:the one is the security mechanism based on Net Layer Model to check the status of the net to determine whether the Attacker attack exist in the Net, the anther is registration process based on TLS that faced to security services of the Transport Layer.
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