A Collaborative Role-Based Access Control for Trusted Operating Systems in Distributed Environment(Application)(<Special Section>Cryptography and Information Security)

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概要

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• The research communitiy has shown considerable interest in studying access control in single Trusted Operating Systems (TOS). However, interactions among multiple TOSs have attracted relatively little attention. In this paper, we propose a Collaborative Role-Based Access Control (C-RBAC) model for distributed systems in which accesses across system domain boundaries are allowed. Access entities in a TOS vary in time. The changes in the organizational structure of the access entities in one system may influence other cooperating systems. In addition, policyfreeness, domain and rule conflicts are possible. These problems restrict the flexibility and scalability of coordination. We propose drafting a metacomponent to play the role of a coordinator in multi-domain role-based access control. It is then possible to impart flexibility and scalability in a secure fashion. Experimental studies of the proposed model with the Network File System and SELinux system support our conclusion.

• 2005-01-01

著者

• Ramakrishna R.

  Department Of Information And Communications Gwangju Institute Of Science And Technology (gist)

• Sakurai Kouichi

  Faculty Of Computer Science And Communication Engineering Kyushu University

• Kim Hyung-chan

  Department Of Information And Communications Gwangju Institute Of Science And Technology (gist)

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