Information Iterative Retrieval of Internet of Things Communication Terminal Based on Symmetric Algorithm

Through improved similarity analysis algorithm and hybrid local sensitivity hashing method, information is summarized and retrieved by information retrieval method based on EPC network architecture. This method does not consider the symmetry of information, and its retrieval effect is poor, security is low, and resource occupancy rate is high. Therefore, the information iterative retrieval of IoT communication terminal based on symmetric algorithm is proposed to solve these problems. The symmetric private information retrieval protocol based on secret sharing is used to obtain the information set with retrieval, and the Paillier homomorphic information retrieval method is used to obtain the original document of the information communication terminal information. Then, the information detection model based on the iterative algorithm is used to obtain information of the IoT communication terminal. The experimental results show that the retrieval accuracy of the proposed method is higher than 96% when the document set is less than 1000 KB, and the retrieval accuracy is 94.47% when the document set is 10 TB. The CPU usage and memory usage of this method are 8.65 and 3.24%, respectively. Experiments show that the proposed method has extremely high retrieval accuracy and low energy consumption.