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Secure and Anonymous Group Communication

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Secure and Anonymous Multicast Framework

Nathalie Weiler, Bernhard Plattner

In Proceedings of IFIP Conference on Communications and Multimedia Security 2001 (CMS'2001).

Not available online due to copyright protection. Sorry!

The rapid increase in Internet users triggered a number of new Internet services and applications such as online shopping, video
conferencing, Internet games or distance education. A larger part of those ones requires multicast support for efficient data distribution. A number of secure group communication protocols have been published recently, but the preservation of privacy of the single group member is still an unsolved problem. This paper presents a novel approach to secure and anonymous group communication. First, we propose a solution for anonymity in a local environment based on state-of-the art
approaches such as pseudonym servers and anonymizers combined with encryption techniques on different protocol levels in order to
guarantee an anonymous way of communication between end-users. Then, we introduce the secure and anonymous multicast (SAM) framework and we show how it can be used as a configurable, scalable architecture in combination with local anonymity.

 Scalable end-to-end anonymous communication, composable privacy, anonymous multicast.