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    Please use this identifier to cite or link to this item: http://ir.nknu.edu.tw/ir/handle/987654321/11979

    題名: Cryptanalysis of Hwang-Yang scheme for controlling access in large partially ordered hierarchies
    Authors: 王釋毅
    Shyh-Yih Wang;Chi-Sung Laih
    貢獻者: 光電與通訊工程學系
    Keywords: Access control;Cryptography;Attack;Hierarchy;Key management
    Date: 2005-02-15
    Issue Date: 2010-11-19 16:49:56 (UTC+8)
    Abstract: Recently, Hwang and Yang [J. Syst. Software 67 (2003) 99] proposed a cryptographic key assignment scheme for access control in large partially ordered hierarchies. In this paper, we show that their scheme is insecure against the collusion attack whereby some security classes conspire to derive the secret keys of other leaf security classes, which is not allowed according to the scheme.
    關聯: Journal of Systems and Software / Vol.75, No.1-2, pp.189-192, doi:10.1016/j.jss.2004.04.015
    Appears in Collections:[光電與通訊工程學系] 期刊論文
    [光通系] 王釋毅

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