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SACMAT
2005
ACM
16 years 5 days ago
Peer-to-peer access control architecture using trusted computing technology
It has been recognized for some time that software alone does not provide an adequate foundation for building a high-assurance trusted platform. The emergence of industry-standard...
Ravi S. Sandhu, Xinwen Zhang
CCS
2005
ACM
16 years 5 days ago
A framework for concrete reputation-systems with applications to history-based access control
In a reputation-based trust-management system, agents maintain information about the past behaviour of other agents. This information is used to guide future trust-based decisions...
Karl Krukow, Mogens Nielsen, Vladimiro Sassone
CCS
2009
ACM
15 years 11 months ago
Multiple password interference in text passwords and click-based graphical passwords
The underlying issues relating to the usability and security of multiple passwords are largely unexplored. However, we know that people generally have difficulty remembering mult...
Sonia Chiasson, Alain Forget, Elizabeth Stobert, P...
ACISP
2001
Springer
15 years 11 months ago
Private Information Retrieval Based on the Subgroup Membership Problem
Abstract. Many algorithmic problems, which are used to prove the security of a cryptographic system, are shown to be characterized as the subgroup membership problem. We then apply...
Akihiro Yamamura, Taiichi Saito
CCS
2006
ACM
15 years 10 months ago
Safety and consistency in policy-based authorization systems
In trust negotiation and other distributed proving systems, networked entities cooperate to form proofs that are justified by collections of certified attributes. These attributes...
Adam J. Lee, Marianne Winslett