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Paper 2009/057
Anonymity in Shared Symmetric Key Primitives
Gregory M. Zaverucha and Douglas R. Stinson
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.
Metadata
- Available format(s)
- Category
- Secret-key cryptography
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- threshold cryptography
- Contact author(s)
- gzaveruc @ cs uwaterloo ca
- History
- 2009-02-06: received
- Short URL
- https://ia.cr/2009/057
- License
-
CC BY