Raytheon Company

Douglas Edward Lapp

William P Posey

Thomas R Woodall

William Tin Wun Shih

A method for implementing an object based vulnerability model includes identifying each component in an information system and annotating such component in a database; decomposing each component into major functional objects and annotating each object in a database; identifying actions an attacker could take to modify a behavior of the functional objects in the information system and annotating such actions in a database; capturing a trust score and a trustworthiness score for each object and annotating the trust score and the trustworthiness score in the database; assessing each action on the structure, state, and inputs of each functional object to determine if an interaction exists and annotating the interaction existence in the database; and applying preventive and reactive countermeasures accordingly.

Method for objectively and completely indentifying system residual vulnerabilities

A multi-level security software architecture includes various components configured to provide full data separation across multiple processors while limiting the number and size of high assurance components. The architecture includes a domain separator for ensuring that messages exchanged between domains that are distributed on different microprocessors are securely routed between domain members. The domain separator verifies a message label including a domain identifier provided by a domain gateway and cryptographically binds the message label to each message via cryptographic keys. This prevents misrouting messages caused by accidental or malicious corruption of message labels. Additionally, the domain separator can encrypt messages as necessary to enforce data separation on shared network buses. The domain separator is also responsible for managing the cryptographic keys used to label or encrypt messages.

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Yorba Linda, CA, United States of America

Douglas Edward Lapp