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Attacks on a Secure Group Communication Scheme With Hierarchical Access Control
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Abstract: | At ICICS 2001, Zou, Ramamurthy, and Magliveras proposed CRTHACS, a chinese remainder theorem based scheme for secure group communication with hierarchical access control. The scheme is designed in such a way that the underlying hierarchy remains hidden from the participating parties/users. This contribution describes several practical attacks on CRTHACS which can reveal significant parts of the hierarchy. |
BibTeX
@misc{eprint-2003-11940, title={Attacks on a Secure Group Communication Scheme With Hierarchical Access Control}, booktitle={IACR Eprint archive}, keywords={cryptographic protocols / hierarchical access control, cryptanalysis}, url={http://eprint.iacr.org/2003/227}, note={ steinwan@ira.uka.de 12356 received 31 Oct 2003}, author={Willi Geiselmann and Rainer Steinwandt}, year=2003 }