—Location sharing is a fundamental component of mobile online social networks (mOSNs), which also raises significant privacy concerns. The mOSNs collect a large amount of locati...
This paper presents a framework for providing dynamically deployable services in ubiquitous computing settings. The goal of the framework is to provide people, places, and objects ...
Cross domain resource sharing and collaborations have become pervasive in today’s service oriented organizations. Existing approaches for the realization of cross domain access ...
Role-Based Access Control (RBAC) models have emerged as a leading access control approach for today’s information systems. Hybrid role hierarchies introduced in the Generalized ...
In this paper, we present a novel fine-grained access control system for applications where the information flow is critical; the confidentiality of the data is essential and there...