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    Please use this identifier to cite or link to this item: http://140.128.103.80:8080/handle/310901/22131


    Title: An efficient key assignment scheme based on one-way hash function in a user hierarchy
    Authors: Chen, T.-S., Chung, Y.-F.
    Contributors: Department of Information Management, Tunghai University
    Keywords: Access control;Cryptographic key assignment;Cryptography;One-way hash function;User hierarchy
    Date: 2003-03
    Issue Date: 2013-05-15T09:10:50Z (UTC)
    Abstract: In order to solve the problems resulted from dynamic access control in a user hierarchy, a cryptographic key assignment scheme is proposed by Prof. Lin to promote the performing ability and to simplify the procedure. However, it may cause the security in danger as the user changes his secret key; besides, some secret keys may be disclosed due to the unsuitable selection of the security classes' identities. Through setting up a one-way hash function onto Lin's scheme, the proposed modification can greatly improve the security of Lin's scheme.
    Relation: Journal of Computer Science and Technology 18 (2) , pp. 210-213
    Appears in Collections:[資訊管理學系所] 期刊論文

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