Research On IBE Algorithm And Application In Internet Of Things

In the next few years,the Internet of Things will penetrate applications into various industries and develop into a trillion-level industry.The introduction of encryption technology that can ensure information security has become a hot spot in current research and is crucial to the development of the Internet of Things important.Based on the IBE algorithm,this dissertation uses data that can represent the user's identity information as a public key to participate in encryption.Due to improper key management,it will cause security risks,and it will not be able to perform encryption and decryption properly or even destroy the entire system.Designing a safe and efficient IBE encryption algorithm has important research value.This dissertation carries out analysis and research on the IBE encryption algorithm in the Internet of Things environment,and proposes the CIBE algorithm.The main work includes the following two aspects:(1)Conduct key escrow research.In order to solve the problem of key escrow,in the sensor network of the perception layer,the source of the user's private key will be jointly undertaken by PKG and the user node,breaking the rule that only PKG generates and manages the user's private key alone,and PKG is responsible for half the rights The other half of the rights are the responsibility of the sensor node.The theory proves that the algorithm improves the security and guarantees the correctness at the same time.Experiments show that this algorithm has better calculation efficiency than the same type of AP scheme.(2)Carry out research on selective identity security.The algorithm adds the system parameters cyclic group G_p and G_q,where the key calculation parameter comes from the cyclic group G_p,and the ciphertext calculation parameter comes from the cyclic group G_T,so that after the attacker steals the ciphertext,it is difficult to crack the receiver's identity information and protect Recipient privacy and increased ciphertext security.The theory proves that the algorithm has anonymity and is more secure than the improved key algorithm.Experiments show that the anonymous CIBE maintains the same performance advantages as the improved CIBE key.In this dissertation,the designed CIBE encryption algorithm is applied in the Internet of Vehicles environment.The built-in sensors of the vehicle collect vehicle terminal ID and other information,design the PKG operation plan,and display the CIBE encryption algorithm in a visual form to realize a CIBE encryption system for the Internet of Vehicles.