International Association for Cryptologic Research

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Paper: Anonymity in Shared Symmetric Key Primitives

Authors:
Gregory M. Zaverucha
Douglas R. Stinson
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URL: http://eprint.iacr.org/2009/057
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Abstract: We provide a stronger definition of anonymity in the context of shared symmetric key primitives, and show that existing schemes do not provide this level of anonymity. A new scheme is presented to share symmetric key operations amongst a set of participants according to a $(t,n)$-threshold access structure. We quantify the amount of information the output of the shared operation provides about the group of participants which collaborated to produce it.
BibTeX
@misc{eprint-2009-18200,
  title={Anonymity in Shared Symmetric Key Primitives},
  booktitle={IACR Eprint archive},
  keywords={secret-key cryptography / threshold cryptography},
  url={http://eprint.iacr.org/2009/057},
  note={ gzaveruc@cs.uwaterloo.ca 14279 received 4 Feb 2009},
  author={Gregory M. Zaverucha and Douglas R. Stinson},
  year=2009
}