A Survey on SDN Based Security in Internet of Things

Internet of Things (IoT) is an emerging technology where tens of billions of devices that include everything from small wearable fitness bands, medical devices, smart devices to factory automobiles can be connected to the Internet which makes the life easy without or with little human intervention. Though IoT has proven to be more transformative, as its market size increases, it is really a big challenge to secure such a large number of devices that are connected by a complex heterogeneous network with a variety of access protocols. Software defined networking (SDN) decouples the control plane from the data plane, enabling fast reaction to security threats and security policy enforcement. IoT security can be achieved by the integration of SDN with IoT. SDN is an intelligent network paradigm which can open up ways to secure IoT and different access control mechanisms. This survey paper analyzes SDN based IoT security mechanisms to secure communications in IoT and present open research issues.