Efficient and Secure Multi-Point Communication Framework Supporting Resource Constraints Environment

This research focuses on lightweight certification, authorization management, and data privacy encryption protection within a diverse smart manufacturing environment. The objective is to design a multi-point communication encryption and decryption system based on Physically Unclonable Functions (PUFs). This system includes a controller and several nodes that leverage the circuit characteristics of SRAM to create PUFs. To use the system, the controller distributes the pre-shared key generated by the PUF values to all nodes within the system. The pre-shared key enables any two facilities equipped with the nodes to establish a secure channel for communication using Symmetric-key algorithm. These nodes add an extra layer of protection to the factory's facilities, such as machine tools; they can filter out malicious packets in real-time, thereby enhancing the security of the factory environment and enabling seamless integration with diverse hardware without requiring expensive upgrades.