Secure Adaptive Context-Aware ABE for Smart Environments

Abstract

Predicting context-aware activities using machine-learning techniques is evolving to become more readily available as a major driver of the growth of IoT applications to match the needs of the future smart autonomous environments. However, with today’s increasing security risks in the emerging cloud technologies, which share massive data capabilities and impose regulation requirements on privacy, as well as the emergence of new multiuser, multiprofile, and multidevice technologies, there is a growing need for new approaches to address the new challenges of autonomous context awareness and its fine-grained security-enforcement models. The solutions proposed in this work aim to extend our previous LCA-ABE work to provide an intelligent, dynamic creation of context-aware policies, which has been achieved through deploying smart-learning techniques. It also provides data consent, automated access control, and secure end-to-end communications by leveraging attribute-based encryption (ABE). Moreover, our policy-driven orchestration model is able to achieve an efficient, real-time enforcement of authentication and authorization (AA) as well as federation services between users, service providers, and connected devices by aggregating, modelling, and reasoning context information and then updating consent accordingly in autonomous ways. Furthermore, our framework ensures that the accuracy of our algorithms is above 90% and their precision is around 85%, which is considerably high compared to the other reviewed approaches. Finally, the solution fulfills the newly imposed privacy regulations and leverages the full power of IoT smart environments.

Ambient intelligent framework for modelling critical medical events based on context awareness

“…Apart from this, different ambient sensors may offer ambiguous or noisy data, which makes it quite computationally challenging to perform interpretation [10]. From the viewpoint of contextual awareness towards activity detection, there is a higher degree of variations associated with user activity with a lack of personalization and adaptation, thereby making it quite challenging to construct a universal model [11]- [15]. Another significant challenge is constructing a comprehensive contextual model towards an activity determination system by integrating information from multiple sources [16]- [20].…”