An SDN-Enabled IoT Architecture with Fog Computing and Edge Encryption Support

Internet of Things (IoT) is supposed to be the future form of communication where objects can communicate with each other via the Internet. Due to heterogeneous network technologies and infrastructures, the overall IoT system is getting more complex than the traditional system. This research discusses about integrating SDN in IoT system for better network functionalities in terms of optimization, controlling, dynamic resource management, etc., whereas fog computing provides quick time response for real-time applications with security where computation is done at the edge of the network. Also, adding edge encryption provides better security, privacy, and sharing of sensitive data where data is encrypted before sending to the cloud. Thus, a four-layered IoT architecture is proposed and explained here with two use cases where each layer is capable to respond to specific security requirements as well as open for adding new security frameworks.

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