Partitioning Communication System
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Partitioning Communication System is a computer and communications security architecture based on an information flow separation policy. The PCS extends the four foundational security policies of a MILS (
Multiple Independent Levels of Security Multiple Independent Levels of Security/Safety (MILS) is a high-assurance security architecture based on the concepts of separation and controlled information flow. It is implemented by separation mechanisms that support both untrusted and trustwor ...
) software architecture to the network: * End-to-end Information Flow * End-to-end Data Isolation * End-to-end Periods Processing * End-to-end Damage Limitation The PCS leverages software separation to enable application layer entities to enforce, manage, and control application layer security policies in such a manner that the application layer security policies are: * Non-bypassable * Evaluatable * Always-invoked * Tamper-proof The result is a communications architecture that allows a software separation kernel and the PCS to share responsibility of security with the application. The PCS was invented by OIS. OIS collaborated extensively on the requirements for the PCS with: *
National Security Agency The National Security Agency (NSA) is an intelligence agency of the United States Department of Defense, under the authority of the director of national intelligence (DNI). The NSA is responsible for global monitoring, collection, and proces ...
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Air Force Research Laboratory The Air Force Research Laboratory (AFRL) is a scientific research and development detachment of the United States Air Force Air Force Materiel Command, Materiel Command dedicated to leading the discovery, development, and integration of direct- ...
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University of Idaho The University of Idaho (U of I, or UIdaho) is a public land-grant research university in Moscow, Idaho, United States. Established in 1889 and opened three years later, it was the state's sole university for 71 years, until 1963. The un ...
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Lockheed Martin The Lockheed Martin Corporation is an American Arms industry, defense and aerospace manufacturer with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta on March 15, 1995. It is headquartered in North ...
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Boeing The Boeing Company, or simply Boeing (), is an American multinational corporation that designs, manufactures, and sells airplanes, rotorcraft, rockets, satellites, and missiles worldwide. The company also provides leasing and product support s ...
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Rockwell Collins Rockwell Collins, Inc. was a multinational corporation headquartered in Cedar Rapids, Iowa, providing avionics and information technology systems and services to government agencies and aircraft manufacturers. It was formed when the Collins Radi ...


References

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Presentation at OMG Software Based Communications Workshop
* {{cite web , last = Beckwith , first = R. William , title = MILS Partitioning Communication System , publisher = Objective Interface Systems, Inc. , url = http://www.ois.com/pcs/ , url-status = dead , archiveurl = https://web.archive.org/web/20070928154531/http://www.ois.com/pcs/ , archivedate = 2007-09-28 Operating system security