Research on Multi-hop Secure Routing Protocol Based on LEACH

There are a lot of simple structure and energy limited terminal nodes and equipments in the Internet of things, and to ensure the security of the equipment and data is very important for the Internet of things. LEACH routing protocol is one of the earliest hierarchical routing protocols which is connected with the terminal nodes. It has good performance in energy consumption and ad hoc networks. In order to improve the security of LEACH protocol, a multi hop routing protocol based LEACH is proposed, which using the Dijkstra algorithm to find the shortest route. By using the method of preset shared key, the authentication of the nodes is carried out by the base station. At the same time according to the generated network structure, the communication key between the nodes is generated automatically. The detailed design and safety performance of the improved routing protocol are given.