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Designing a distributed system with the characteristics of reliability and trustworthiness is an important issue. Yet another important issue in the distributed system is the access to remote system which can be achieved on the basis of certain access rights, policies or authorization semantics. The aim of this paper is to establish a collaborative trust enhanced security model for distributed system in which a node either local or remote is trustworthy. This paper also provides a promising solution with trust policies as authorization semantics. While designing a new secure distributed system, it has been observed that mostly the new nodes joining the system are insecure. If these perfidious nodes are provided full authorization, they can perform malicious activities in the system.
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