Mandatory access control scheme with active objects

Details Mandatory access control scheme with active objects Mandatory access control scheme with active objects

2004-09-29

2009-10-06

Kim, Jung (Department: 2432)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Security kernel or utility

C713S165000, C713S167000, C726S030000, C707S793000

Reexamination Certificate

active

07600117

ABSTRACT:
Access control is mediated by a set of 2-tuple labels or attributes which are associated with subject and object entities, respectively. Subject entitles, such as processes, have separate read and write attributes, while object entities, such as files, have separate integrity and write control attributes. The system implements a set of rules to provide both integrity control and confidentiality protection. Specifically, write operations to an object are inhibited where the subject's write attribute is lower than the write control attribute of the object. Read operations from an object are inhibited where the subject's read attribute is lower than the object's integrity attribute. When a subject reads from an object having a lower integrity level than the subject's read attribute, the subject's read attribute is demoted.

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