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Paper: Flaws in Some Efficient Self-Healing Key Distribution Schemes with Revocation

Authors:
Vanesa Daza
Javier Herranz
German Saez
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URL: http://eprint.iacr.org/2008/351
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Abstract: Dutta and Mukhopadhyay have recently proposed some very efficient self-healing key distribution schemes with revocation. The parameters of these schemes contradict some results (lower bounds) presented by Blundo et al. In this paper different attacks against the schemes of Dutta and Mukhopadhyay are explained: one of them can be easily avoided with a slight modification in the schemes, but the other one is really serious. The conclusion is that the results of Dutta and Mukhopadhyay are wrong.
BibTeX
@misc{eprint-2008-18028,
  title={Flaws in Some Efficient Self-Healing Key Distribution Schemes with Revocation},
  booktitle={IACR Eprint archive},
  keywords={cryptographic protocols / self-healing key distribution, lower bounds, polynomial interpolation},
  url={http://eprint.iacr.org/2008/351},
  note={ jherranz@iiia.csic.es 14102 received 11 Aug 2008},
  author={Vanesa Daza and Javier Herranz and German Saez},
  year=2008
}