Sassa Otenko

David W. Chadwick, Sassa Otenko, Tuan-Anh Nguyen: Adding support to XACML for multi-domain user to user dynamic delegation of authority. Int. J. Inf. Sec. 8(2): 137-152 (2009)

David W. Chadwick, Gansen Zhao, Sassa Otenko, Romain Laborde, Linying Su, Tuan-Anh Nguyen: PERMIS: a modular authorization infrastructure. Concurrency and Computation: Practice and Experience 20(11): 1341-1357 (2008)

Ning Zhang, Li Yao, Aleksandra Nenadic, Jay Chin, Carole A. Goble, Alan L. Rector, David W. Chadwick, Sassa Otenko, Qi Shi: Achieving fine-grained access control in virtual organizations. Concurrency and Computation: Practice and Experience 19(9): 1333-1352 (2007)

Gansen Zhao, David W. Chadwick, Sassa Otenko: Obligations for Role Based Access Control. AINA Workshops (1) 2007: 424-431

David W. Chadwick, Wensheng Xu, Sassa Otenko, Romain Laborde, Bassem Nasser: Multi-session Separation of Duties (MSoD) for RBAC. ICDE Workshops 2007: 744-753

Gansen Zhao, Sassa Otenko, David W. Chadwick: Distributed Key Management for Secure Role based Messaging. AINA (1) 2006: 132-137

David W. Chadwick, Sassa Otenko, Tuan-Anh Nguyen: Adding Support to XACML for Dynamic Delegation of Authority in Multiple Domains. Communications and Multimedia Security 2006: 67-86

David W. Chadwick, Linying Su, Alexander Otenko, Romain Laborde: Coordination between Distributed PDPs. POLICY 2006: 163-172

Sacha Brostoff, Martina Angela Sasse, David W. Chadwick, R. James Cunningham, Uche M. Mbanaso, Sassa Otenko: 'R-What?' Development of a role-based access control policy-writing tool for e-Scientists. Softw., Pract. Exper. 35(9): 835-856 (2005)

Gabriel López Millán, Óscar Cánovas Reverte, Antonio F. Gómez-Skarmeta, Sassa Otenko, David W. Chadwick: A Heterogeneous Network Access Service Based on PERMIS and SAML. EuroPKI 2005: 55-72

Wensheng Xu, David W. Chadwick, Sassa Otenko: Development of a Flexible PERMIS Authorisation Module for Shibboleth and Apache Server. EuroPKI 2005: 162-179

David W. Chadwick, Alexander Otenko: The PERMIS X.509 role based privilege management infrastructure. Future Generation Comp. Syst. 19(2): 277-289 (2003)

David W. Chadwick, Alexander Otenko, Edward Ball: Role-Based Access Control With X.509 Attribute Certificates. IEEE Internet Computing 7(2): 62-69 (2003)

Jean Bacon, David W. Chadwick, Alexander Otenko, Ken Moody: Persistent versus Dynamic Role Membership. DBSec 2003: 344-357

David W. Chadwick, Alexander Otenko: The PERMIS X.509 role based privilege management infrastructure. SACMAT 2002: 135-140

David W. Chadwick, Alexander Otenko: RBAC Policies in XML for X.509 Based Privilege Management. SEC 2002: 39-54