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Using Trust and Risk in Access Control for Grid Environment

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5 Author(s)
Yan Li ; Sch. of Software & Microelectron., Peking Univ., Peking ; Huiping Sun ; Zhong Chen ; Jinqiang Ren
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With the development of grid technology, sensitive files and data protection become difficult tasks multi-domains. Traditional access control mechanisms are not suitable to such distributed environment. Several models and mechanisms utilize trust to assist access control decision. But few explicitly consider trust and risk as two separate factors which affect interactions between peers. In this paper, we present a novel mechanism which considers both trust and risk as two vital parameters to assist access control decision. In addition, a novel model of trust evaluation is proposed to represent the confidence in the peer. And to appease peoplepsilas anxiety about loss, a new model of risk assessment is also presented to indicate impacts on resources. At the end of this paper, simulation results will indicate that our mechanism is able to secure local system more efficiently and reliably.

Published in:

Security Technology, 2008. SECTECH '08. International Conference on

Date of Conference:

13-15 Dec. 2008