The Journal of The Institute of Image Information and Television Engineers
Online ISSN : 1881-6908
Print ISSN : 1342-6907
ISSN-L : 1342-6907
A Key Generating Method Using Recursive Hash Chains and Its Applications for Multi-dimensionally Hierarchical Access Control
Shoko ImaizumiMasaaki FujiyoshiHitoshi Kiya
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2011 Volume 65 Issue 2 Pages 193-202

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Abstract

An efficient key generating method that uses recursive hash chains is proposed for hierarchical access control. The proposed method introduces recursive hash chains for reducing the number of managed keys. In addition to decreasing this number down to one, regardless of the number of the controlled targets and their depth, the number of keys delivered to a user by using the proposed method is equal to or less than that in conventional methods.

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© 2011 The Institute of Image Information and Television Engineers
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