A Media Key Distribution Scheme for Lawful Interception in Secured VoIP Systems 


Vol. 31,  No. 8, pp. 730-735, Aug.  2006


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  Abstract

This paper proposes a media key distribution scheme for lawful interception in secured VoIP systems. A problem of the current US or EU standards for lawful interception is that they do not provide a mechanism for collecting keys used for encrypting media streams between two end points. In the proposed scheme, dual encryption was applied on the media keys using two shared secrets: one between the ISP AAA server and user agent, and the other between the TSP registrar and user agent. Only the lawful agency with court warrant can collect both keys from the service providers. This scheme can still provide a privacy by preventing the misusage of the keys by the service providers.

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  Cite this article

[IEEE Style]

H. Roh and S. Jung, "A Media Key Distribution Scheme for Lawful Interception in Secured VoIP Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 8, pp. 730-735, 2006. DOI: .

[ACM Style]

Hyosun Roh and Souhwan Jung. 2006. A Media Key Distribution Scheme for Lawful Interception in Secured VoIP Systems. The Journal of Korean Institute of Communications and Information Sciences, 31, 8, (2006), 730-735. DOI: .

[KICS Style]

Hyosun Roh and Souhwan Jung, "A Media Key Distribution Scheme for Lawful Interception in Secured VoIP Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 8, pp. 730-735, 8. 2006.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880