A Session Key Exchange Scheme for Authentication and SDP Encryption to Protect P2P SPIT in SIP 


Vol. 32,  No. 12, pp. 750-757, Dec.  2007


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  Abstract

This paper analyzes spam threats and proposes key exchange scheme for user authentication and SDP encryption to protect potential spam threats in SIP-based VoIP services. The existing HTTP digest authentication scheme exchanges many message because challenge is sent for every establishment of the session and doesn't provide a confidentiality of SDP. To protect SPIT, our scheme exchanges initial nonce and a session master key for authentication and SDP encryption during registration. In our scheme, the challenge and response procedure is not necessary and the communication overhead is much less than applying S/MIME or TLS.

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  Cite this article

[IEEE Style]

Y. Jang, S. Jung, J. Choi, J. Choi, Y. Won, Y. Cho, "A Session Key Exchange Scheme for Authentication and SDP Encryption to Protect P2P SPIT in SIP," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 12, pp. 750-757, 2007. DOI: .

[ACM Style]

Yujung Jang, Souhwan Jung, Jaesic Choi, Jaeduck Choi, Yoojae Won, and Youngduk Cho. 2007. A Session Key Exchange Scheme for Authentication and SDP Encryption to Protect P2P SPIT in SIP. The Journal of Korean Institute of Communications and Information Sciences, 32, 12, (2007), 750-757. DOI: .

[KICS Style]

Yujung Jang, Souhwan Jung, Jaesic Choi, Jaeduck Choi, Yoojae Won, Youngduk Cho, "A Session Key Exchange Scheme for Authentication and SDP Encryption to Protect P2P SPIT in SIP," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 12, pp. 750-757, 12. 2007.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880