Efficient Date-Constraint Hierarchical Key Assignment Scheme
نویسندگان
چکیده
It is well-known that there exists a trade-off between crypto-period and affected risk, so the key derivation is not only constrained by the partial-order class relation but also by the time period while handling hierarchical key assignment in dynamic enterprises. In this paper, a new date-constraint hierarchical key assignment scheme, which does not make use of public key cryptosystem, is proposed to give a cost-effective solution.
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