An IoT Framework Based on SDN and NFV for Context-Aware Security

The Internet of Things (IoT) connects a complex set of devices that perform data collection, processing, and environmental control in various applications. Due to the extent of potential monitoring and control capabilities, its infrastructure and data security is an essential design consideration. This presents unique challenges due to the heterogeneity of devices and dynamism involved. Context should thus be considered when applying suitable security measures without unnecessarily taxing the network. To do so, a four-layer framework that incorporates Software-defined Networking (SDN) and Network Function Virtualization (NFV) is proposed due to their flexibility in rapidly adjusting to network conditions to support context-aware security in IoT applications.