Safety of mixed model access control in a multilevel system
Loading...
Authors
Arvay, Randall J.
Subjects
RuleML
Cross-Domain
Multilevel Security
Maritime Domain Awareness
Information Leakage
Access Control
Information Broker
Cross-Domain
Multilevel Security
Maritime Domain Awareness
Information Leakage
Access Control
Information Broker
Advisors
Michael, James Bret
Date of Issue
2014-06
Date
Jun-14
Publisher
Monterey, California: Naval Postgraduate School
Language
Abstract
Information sharing can result in emergent behaviors that affect the safety properties associated with overt information flows. Secure cross-domain integration, involving the safety properties of both individual domains and the information dissemination across those domains, can result in leakage of information during the brokering of that information in an enterprise-level, multilevel secure (MLS) system using mixed model access control. Existing access control models do not address this problem. To address this gap, we developed a technique for building compositional models that combine both role-based access control and traditional MLS-based Bell-LaPadula models to provide for a high-assurance MLS system access controller. However, such compositional models introduce information rights proliferation during the specification of high-assurance security requirements and the security policy to provide for safety within the system. We addressed that problem with a technique that leverages RuleML to specify declassification policies for securing information exchange between different security levels of disparate access control models. The technique supports the tranquility principle allowing for desired information flows while not violating the overall security policy of the system. We demonstrated the technical feasibility of using both of these techniques, using as our example application cross-domain information sharing in conducting Maritime Domain Awareness operations.
Type
Thesis
Description
Series/Report No
Department
Computer Science
Organization
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.