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Profile

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I am a researcher at IBM Tokyo Research Laboratory. My research interests include security policy, access control, trusted computing, and information governance. Please visit XML Access Control project, Trusted Computing project home pages. I chair the ACM Workshop on Information Security Governance 2009. My recent research interest is on theoretic models and technologies for managing governance and business integrity, where the notion of information provenance, accountability, and transparency are deeply involved.

Major Research Contribution

I am one of the founders of the XACML Technical Committee in the OASIS standardization organization. XACML is an extensible access control policy specification language which aims at being used in many security software products as a lingua franca for authorization. The XACML 2.0 specification was ratified as an OASIS standard in Feb 2005. The committee has been discussing XACML 3.0 specification. The XACML Specification has been widely accepted in many industries and governments. References are available from within XACML homepage. Some portions of the XACML specification is originated from our prior research projects XACL in TRL, some contributions include the security policy model with the notion of Obligation associated with access control policy, which is getting more and more interests among TC members and several industries, e.g. healthcare industry.

Publications

Journal Papers

International Conference Papers

Books

Domestic Conferences and Workshops

Academic Activities

Conference Organizer

Program Committee

Other Academic Activities

Standardization

University Activities