Modified Cryptographic Key Assignment Scheme for a Group-Oriented User Hierarchy

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概要

• 論文の詳細を見る

• A modified cryptographic key assignment scheme for the dynamic access control in a group-oriented user hierarchy is presented. In the partially ordered set (poset, for short) user hierarchy (G_j≦G_i) embedded in a group-oriented (t,n) threshold cryptosystem, the source group G_i has higher security clearance to access the information items held in the target group G_j. If a target group G_j has multiple paths reachable from a source group G_i, we must choose the least cost path to rapidly resolve the dynamic access control problem. Furthermore, multiple threshold values are also considered in order to meet the different security requirements.

• 社団法人電子情報通信学会の論文
• 1997-10-25

著者

• Lai F

  National Taiwan Univ. Taipei Twn

• SHEN Victor

  the Department of Electrical Engineering, Mingchi Institute of Technology

• CHEN Tzer-Shyong

  the Room 342, Department of Electrical Engineering, National Taiwan University

• LAI Feipei

  the Department of Computer Science and Information Engineering, National Taiwan University

• Shen V

  Mingchi Inst. Technol. Taipei Twn

• Shen Victor

  The Department Of Electrical Engineering Mingchi Institute Of Technology

• Chen T‐s

  Tunghai Univ. Taichung Twn

関連論文

• Novel Cryptographic Key Assignment Scheme for Dynamic Access Control in a Hierarchy
• Modified Cryptographic Key Assignment Scheme for a Group-Oriented User Hierarchy
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