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Anonymity in Shared Symmetric Key Primitives
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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 }