A Risk Assessment Framework for Wireless Sensor Networks in a Sensor Cloud

A Sensor cloud framework is composed of various heterogeneous wireless sensor networks (WSNs) integrated with the cloud platform. Integration with the cloud platform, in addition to the inherent resource and power constrained nature of the sensor nodes makes these WSNs belonging to a sensor cloud susceptible to security attacks. As such there is a need to formulate effective and efficient security measures for such an environment. But in doing so, requires an understanding of the likelihood and impact of different attacks feasible on the WSNs. In this paper, we propose a risk assessment framework for the WSNs belonging to a sensor cloud. The proposed risk assessment framework addresses the feasible set of attacks on a WSN identifying the relationships between them and thus estimating their likelihood and impact. This kind of assessment will give the security administrator a better perspective of their network and help formulating the required security measures.