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Modified AES based secured Key Management and Mutual Authentication Protocol for WSN by linking Edge Devices
Ezhil Roja P and Misbha D S

WSNs have been deployed in many fields where the sensor nodes are usually dispersed throughout challenging areas to provide ongoing data gathering and monitoring. Modern wireless and electrical technologies have combined to enhance WSNs. Due to their frequent usage in unsupervised and hostile situations; Sensor nodes (SNs) are vulnerable to adversary node capture and collusion efforts. Cryptographic techniques are crucial to WSN security because they protect the entire network. Security is the primary concern since it is nearly impossible to do node authentication without impacting the longevity of the networks. This research offers the key management and mutual authentication technique for WSN connecting edge devices, which also employs a modified encryption standard for key management. The proposed model involves the following steps: Optimal Routing, Key management and mutual authentication. This work proposes a new hybrid optimization algorithm for optimal routing under the consideration of trust, risk, link quality, distance, and energy. For this, the Shuffled Combined Beluga whale algorithm (SCBWA) is implemented with the combination of Shuffled shepherd optimization and Beluga whale optimization. In the Key management and mutual authentication step, the Modified Advanced Encryption Standard (MAES) is proposed to ensure security via key management and following the key establishment and mutual authentication. The suggested SCBWA model has greater mean values (0.984) at node 200 than the other earlier schemes, such as SSO, BWO, TSO, BFO, TDO, and CM-MH. Finally, using a variety of criteria, the chosen technique is evaluated with other techniques.

Keywords: WSN, optimal routing, key management and mutual authentication, modified advanced encryption standard, SCBWA model