Research On Security And Privacy Issues In Vehicle-to-grid Network

Nowadays,non-renewable energy sources such as coal and oil are slowly depleting,and the environmental pollution is becoming more and more serious.The power system is gradually shifting from a centralized fossil fuel grid to a distributed green smart grid.In recent years,the new energy electric vehicle industry has boomed.The Vehicle to Grid(V2G)technology can optimize the energy structure,provide intelligent charging and discharging services for electric vehicles,making the grid safe,smart,and efficient.However,the security and privacy issues in the V2 G network have greatly affected the practical application of the technology of V2 G.Security authentication and privacy protection are two important requirements for the V2 G communication network.In this paper,we mainly focus on the information security issues in the V2 G network,analyze the communication architecture of the V2 G network in detail,and study the identity authentication and privacy protection issues in the communication process of the V2 G network.This paper analyzes the security and privacy threats that exist in the process of electric vehicles connecting to the grid,and proposes corresponding security and privacy requirements,including identity anonymity,vehicle untraceability,mutual authentication,and message confidentiality and integrity verification,and proposes a comprehensive V2 G network-oriented Sexual security and privacy protection strategy.Due to the limited computing and communication resources of electric vehicles,this paper proposes a lightweight security authentication and key agreement based on elliptic curve cryptography.In the scheme,the trusted center TA is responsible for the establishment of system parameters,and the electric vehicle and the charging pile realize mutual authentication and key agreement sharing.The security analysis shows that the scheme meets the corresponding security and privacy goals.Finally,the security authentication and key agreement process of electric vehicles and charging piles in the V2 G network are simulated under the Windows platform.The experimental results show that the proposed scheme can achieve safe and efficient authentication communication between electric vehicles and charging piles in the V2 G network.This article compares similar schemes proposed in recent years.Performance analysis shows that this scheme has stronger attack resistance,can greatly reduce the computational complexity of the authentication and key agreement process.