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» Modeling the Security of Steganographic Systems
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WETICE
2006
IEEE
16 years 14 days ago
Authorisation Using Attributes from Multiple Authorities
This paper presents the results of a survey of requirements for attribute aggregation in authorisation systems, gathered from an international community of security professionals....
David W. Chadwick
ESORICS
2009
Springer
16 years 7 months ago
Towards a Theory of Accountability and Audit
Accountability mechanisms, which rely on after-the-fact verification, are an attractive means to enforce authorization policies. In this paper, we describe an operational model of ...
Radha Jagadeesan, Alan Jeffrey, Corin Pitcher, Jam...
SACMAT
2010
ACM
15 years 11 months ago
Role updating for assignments
The role-based access control (RBAC) has significantly simplified the management of users and permissions in computing systems. In dynamic environments, systems are usually unde...
Jinwei Hu, Yan Zhang, Ruixuan Li, Zhengding Lu
ICICS
2010
Springer
15 years 4 months ago
Threshold Public-Key Encryption with Adaptive Security and Short Ciphertexts
Threshold public-key encryption (TPKE) allows a set of users to decrypt a ciphertext if a given threshold of authorized users cooperate. Existing TPKE schemes suffer from either lo...
Bo Qin, Qianhong Wu, Lei Zhang, Josep Domingo-Ferr...
WSC
2007
15 years 8 months ago
A public health application of data analysis for homeland security
This presentation follows up the talk last year to WINFORMS (The Washington Institute for Operations Research and The Management Sciences) in which an approach developed for the a...
Marjorie Greene, Robert Eek