Grouping Sensors for the Key Distribution of Implicit Certificates in Wireless Sensor Networks

As sensor nodes communicate via wireless channels, information security is essential for networks. Efficient protection mechanisms to ensure data among are critical. This study developed the bi-directed grouping (top-down (TDG) and bottom-up (BUG)) methods. In this study, we propose a group-based key distribution method, “aggregator-based grouping” (ABG), which combines advantages of TDG BUG address issues nodes. It employs horizontal vertical searches, based on breadth-first aggregator respectively. A node performs encryption decryption only when it requires either aggregation or inter-group communication. The secure method can be applied key-grouping management. We compared proposed with using same number groups network structure. For maximum group members 50 (total = 1000), BUG, ABG reduced operations by ~36%. avoids unnecessary in network.