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SACMAT
2004
ACM
15 years 11 months ago
Role-based cascaded delegation
We propose role-based cascaded delegation, a model for delegation of authority in decentralized trust management systems. We show that role-based cascaded delegation combines the ...
Roberto Tamassia, Danfeng Yao, William H. Winsboro...
DBSEC
2010
152views Database» more  DBSEC 2010»
15 years 7 months ago
Modelling Dynamic Access Control Policies for Web-Based Collaborative Systems
Abstract. We present a modelling language, called X-Policy, for webbased collaborative systems with dynamic access control policies. The access to resources in these systems depend...
Hasan Qunoo, Mark Ryan
PLDI
2009
ACM
15 years 11 months ago
Flow-sensitive semantics for dynamic information flow policies
Dynamic information flow policies, such as declassification, are essential for practically useful information flow control systems. However, most systems proposed to date that ...
Niklas Broberg, David Sands
CCS
2008
ACM
15 years 8 months ago
Mechanisms for usage control
Usage control is a generalization of access control that also addresses how data is used after it is released. We present a formal model for different mechanisms that can enforce ...
Alexander Pretschner, Manuel Hilty, David A. Basin...
TRUSTBUS
2007
Springer
16 years 10 days ago
Recognition of Authority in Virtual Organisations
Abstract. A Virtual Organisation (VO) is a temporary alliance of autonomous, diverse, and geographically dispersed organisations, where the participants pool resources, information...
Tuan-Anh Nguyen, David W. Chadwick, Bassem Nasser