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CCS
2007
ACM
13 years 11 months ago
Hardware-rooted trust for secure key management and transient trust
We propose minimalist new hardware additions to a microprocessor chip that protect cryptographic keys in portable computing devices which are used in the field but owned by a cen...
Jeffrey S. Dwoskin, Ruby B. Lee
CCS
2008
ACM
13 years 7 months ago
Stale-safe security properties for group-based secure information sharing
Attribute staleness arises due to the physical distribution of authorization information, decision and enforcement points. This is a fundamental problem in virtually any secure di...
Ram Krishnan, Jianwei Niu, Ravi S. Sandhu, William...
ESORICS
2009
Springer
13 years 11 months ago
Private Information Retrieval Techniques for Enabling Location Privacy in Location-Based Services
Abstract. The ubiquity of smartphones and other location-aware handheld devices has resulted in a dramatic increase in popularity of locationbased services (LBS) tailored to user l...
Ali Khoshgozaran, Cyrus Shahabi
CSE
2009
IEEE
13 years 11 months ago
A Hybrid Enforcement Model for Group-centric Secure Information Sharing
—Group-Centric Secure Information Sharing (g-SIS) is motivated by the need to dynamically share information amongst a set of authorized users for a specific purpose. Authorized ...
Ram Krishnan, Ravi S. Sandhu
JCM
2008
73views more  JCM 2008»
13 years 4 months ago
Secure and Distributed P2P Reputation Management
The open, sharing and anonymous nature of peer-to-peer (P2P) network has offered opportunities and threats for the development of distributed computing technology. One feasible way...
Jianli Hu, Quanyuan Wu, Bin Zhou