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The VersaKey Framework : versatile Group Key Management

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WALDVOGEL, Marcel, Germano CARONNI, Dan SUN, Nathalie WEILER, Bernhard PLATTNER, 1999. The VersaKey Framework : versatile Group Key Management. In: IEEE Journal on selected areas in communications. 17(9), pp. 1-16. Available under: doi: 10.1109/49.790485

@article{Waldvogel1999Versa-6422, title={The VersaKey Framework : versatile Group Key Management}, year={1999}, doi={10.1109/49.790485}, number={9}, volume={17}, journal={IEEE Journal on selected areas in communications}, pages={1--16}, author={Waldvogel, Marcel and Caronni, Germano and Sun, Dan and Weiler, Nathalie and Plattner, Bernhard} }

The VersaKey Framework : versatile Group Key Management Waldvogel, Marcel Plattner, Bernhard Sun, Dan Weiler, Nathalie Waldvogel, Marcel Sun, Dan First publ. in: IEEE Journal on selected areas in communications, 17 (1999), 9, pp. 1-16 Weiler, Nathalie 2011-03-24T16:12:38Z 1999 terms-of-use Caronni, Germano Middleware supporting secure applications in a distributed environment faces several challenges. Scalable security in the context of multicasting or broadcasting is especially hard when privacy and authenticity is to be assured to highly dynamic groups where the application allows participants to join and leave at any time.<br />Unicast security is well-known and has widely advanced into production state. But proposals for multicast security solutions that have been published so far are complex, often require trust in network components or are inefficient. In this paper, we propose a framework of new approaches for achieving scalable security in IP multicasting. Our solutions assure that that newly joining members are not able to understand past group traffic, and that leaving members may not follow future communication.<br />For versatility, our framework supports a range of closely related schemes for key management, ranging from tightly centralized to fully distributed and even allows switching between these schemes on-the-fly with low overhead. Operations have low complexity (O(log N) for joins or leaves), thus granting scalability even for very large groups. We also present a novel concurrency-enabling scheme, which was devised for fully distributed key management.<br />In this paper we discuss the requirements for secure multicasting, present our flexible system, and evaluate its properties, based on the existing prototype implementation. Plattner, Bernhard 2011-03-24T16:12:38Z Caronni, Germano eng application/pdf

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