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CSREASAM
2006
13 years 9 months ago
Reinforcing Access Control Using Fuzzy Relation Equations
Current computer security systems are based on the premise that once a user presents valid credentials to the authentication system (e.g. valid ID and password), they are granted ...
Ali Berrached, André de Korvin
SUTC
2008
IEEE
14 years 1 months ago
Security Enforcement Model for Distributed Usage Control
Recently proposed usage control concept and models extend traditional access control models with features for contemporary distributed computing systems, including continuous acce...
Xinwen Zhang, Jean-Pierre Seifert, Ravi S. Sandhu
CCS
2010
ACM
13 years 11 months ago
Scene tagging: image-based CAPTCHA using image composition and object relationships
In this paper, we propose a new form of image-based CAPTCHA we term "scene tagging". It tests the ability to recognize a relationship between multiple objects in an imag...
Peter Matthews, Cliff Changchun Zou
EUC
2007
Springer
14 years 1 months ago
Obligations for Privacy and Confidentiality in Distributed Transactions
Existing access control systems are typically unilateral in that the enterprise service provider assigns the access rights and makes the access control decisions, and there is no n...
Uche M. Mbanaso, G. S. Cooper, David W. Chadwick, ...
LOCA
2009
Springer
14 years 2 months ago
LOCK: A Highly Accurate, Easy-to-Use Location-Based Access Control System
With proliferation of ubiquitous computing, digital access is facing an increasing risk since unauthorized client located at any place may intrude a local server. Location Based Ac...
Yongcai Wang, Junhui Zhao, Toshikazu Fukushima