Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (01): 216-220.

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Authorization mechanisms for virtual organization in grid computing systems

SHAO Xue-jun1, SHI Hua-ji1,2, ZHAO Xi-bin3   

  1. 1. School of Computer Science and Telecommunications Engineering, Jiangsu Univ., Zhenjiang 212013, China;
    2. Inst. of Computer Application, Nanjing Univ. of Aeronautics and Astronautics, Nanjing 210016, China;
    3. School of Software, Tsinghua Univ., Beijing 100084, China
  • Received:2007-08-28 Revised:2008-02-25 Online:2009-01-25 Published:2010-01-03

Abstract: This article analyzes authorized demand for management of virtual organization in the grid computing system and consequently proposes using threshold closure as authorized service mechanism for virtual organizations in the grid computing system.The study not only analyzes the applicability of the threshold closure but presents the limitations of the specific implementation and based on which,a new authorization service system is put forward and the access control protocol based on the public key infrastructure as well as the corresponding authorization service architecture combined with the existing security infrastructure in grid computing system are designed.The architecture guarantees the processing efficiency and capacity of the complex authorized strategy,and meanwhile it makes full use of the existing grid security infrastructure through the separation strategy of the threshold closure and implementation mechanism.

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