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LAWEB
2006
IEEE
16 years 16 days ago
Accessibility Implementation Planning for Large Governmental Websites: a Case Study
Since the end of 2004, when the law decree about accessibility for Brazilian governmental websites came into force, the federal agencies have been struggling to conform to the nor...
Filipe Levi, Paulo Melo, Ubirajara de Lucena
GLOBECOM
2007
IEEE
16 years 25 days ago
Opportunistic Access with Random Subchannel Backoff (OARSB) for OFDMA Uplink
Abstract— A distributed medium access control (MAC) algorithm for uplink OFDMA networks under the IEEE 802.16 framework is proposed and analyzed in this work. We present a simple...
Yu-Jung Chang, Feng-Tsun Chien, C. C. Jay Kuo
COMAD
2008
15 years 8 months ago
The Efficient Maintenance of Access Roles with Role Hiding
Role-based access control (RBAC) has attracted considerable research interest. However, the computational issues of RBAC models are yet to be thoroughly studied. In this paper, we...
Chaoyi Pang, Xiuzhen Zhang, Yanchun Zhang, Kotagir...
COLCOM
2008
IEEE
16 years 1 months ago
A Constraint and Attribute Based Security Framework for Dynamic Role Assignment in Collaborative Environments
Abstract. We investigate a security framework for collaborative applications that relies on the role-based access control (RBAC) model. In our framework, roles are pre-defined and...
Isabel F. Cruz, Rigel Gjomemo, Benjamin Lin, Mirko...
CODES
2005
IEEE
16 years 4 days ago
Enhancing security through hardware-assisted run-time validation of program data properties
The growing number of information security breaches in electronic and computing systems calls for new design paradigms that consider security as a primary design objective. This i...
Divya Arora, Anand Raghunathan, Srivaths Ravi, Nir...