Internet of Thing Wireless Sensor Entity Authentication Scheme Based on Merkle

IoT is a highly integrated and comprehensive application of the new generation of information network technology. It is an important development direction of the new round of industrial reform and an important driving force for the restructuring of the world industrial pattern. As the perception layer of IoT, the security of wireless sensor network is more important. Based on the study of Merkle tree structure and characteristics as well as the block chain technology, this paper proposes a Merkle based entity authentication scheme to reduce the complexity of traditional schemes, and optimizes the traversal of traditional Merkle tree, which has a good improvement in time complexity.