Efficient provably-secure hierarchical key assignment schemes

Efficient provably-secure hierarchical key assignment schemes
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DOI:
10.1016/j.tcs.2011.06.024
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发表时间:
2007-08
期刊:
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影响因子:
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通讯作者:
A. D. Santis;A. L. Ferrara;B. Masucci
A. D. Santis;A. L. Ferrara;B. Masucci
中科院分区:
其他
文献类型:
--
作者:
A. D. Santis;A. L. Ferrara;B. Masucci

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分层密钥分配方案是一种将一些私有信息和加密密钥分配给部分有序层次结构中的一组类的方法,以这种方式,较高类的私有信息可以用于导出层次结构中较低的所有类的密钥。在本文中,我们设计和分析的层次密钥分配方案是可证明安全的,并支持动态更新的层次结构与本地变化的公共信息,而不需要任何私人信息被重新分配。
A hierarchical key assignment scheme is a method to assign some private information and encryption keys to a set of classes in a partially ordered hierarchy, in such a way that the private information of a higher class can be used to derive the keys of all classes lower down in the hierarchy. In this paper we design and analyze hierarchical key assignment schemes which are provably secure and support dynamic updates to the hierarchy with local changes to the public information and without requiring any private information to be re-distributed.