Efficient key assignment for hierarchical access control using one-way hash function

Authors:
Shaohua Tang
Affiliations:
School of Computer Science and Engineering, South China University of Technology, Guangzhou, Guangdong Province, China
Venue:
ICCOMP'06 Proceedings of the 10th WSEAS international conference on Computers
Year:
2006

Citing 3
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Abstract

An efficient hierarchical key assignment scheme for access control based on one-way hash function is proposed, which allows the user in a security class to derive the keys of its subordinating classes, so that the superior class can access the information encrypted and owned by its subordinating classes. This scheme is also flexible to change the hierarchical relationship among security classes, for example, it is not difficult to add new security classes to the hierarchy, or to delete security classes from the hierarchy dynamically. By analysis and comparison, it is shown that some features, such as efficiency, extensibility, and security, are possessed by this scheme.