Community access control in a multi-community node

Details Community access control in a multi-community node Community access control in a multi-community node

2001-10-16

2008-11-04

Flynn, Nathan J. (Department: 2143)

Electrical computers and digital processing systems: multicomput

Computer-to-computer session/connection establishing

Network resources access controlling

C709S228000, C709S225000, C711S163000

Reexamination Certificate

active

07447782

ABSTRACT:
A method and mechanism of enforcing community access control in a computer network, wherein access to objects by users and processes is controlled. A Multi-Community Node (MCN) processes information for users in multiple communities and must enforce a community separation policy. The enforcement method and mechanism use a database of associations of sets of communities corresponding to users, processes, and system objects. Upon receiving a request for access to an object by a user, the MCN permits access if a user community set (UCS) of the user is a superset of an object community set (OCS) of the object; otherwise, access is denied. Upon receiving a request for access to an object by a process, the MCN permits access if an application process community set (ACS) of the process is a superset the OCS of the object; otherwise, access is denied.

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