REVIEW PAPER
GENERALIZED ACCESS STRUCTURES WITH HIERARCHY
1
Uniwersytet Warszawski
Publication date: 2014-12-05
SBN 2014;6(2): 299-316
KEYWORDS
access structuresprivilegessecret sharingthreshold schemehierarchyWeil pairingbilinear pairinggroupselliptic curvesmonotonic structures
ABSTRACT
Access structures are used in cases associated with situations when one or
more entities are trying to get a resource. We will present a generalization to the case
of access structures many resources, which allows for a nice description of thresholds
and hierarchical schemes. We will also present the use of the so-called bilinear product,
defined in the group of n-torsion points of an elliptic curve over a finite field on two
exemplary hierarchical allocation key schemes.
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| ISSN: | 2082-2677 |
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