Secure computation offloading scheme for matrix in Internet of vehicles based on blockchain

A secure computation offloading scheme for matrix in the Internet of Vehicle based on blockchain was proposed in order to protect the confidentiality of the task data and verify the correctness of the computation results. The smart contract was used based on blockchain to automatically execute the verification process of the computation results, which can ensure the security of the verification process and the tamper resistance of the verification result. A lightweight matrix encryption method was proposed based on matrix addition, which can simplify the complexity of encryption and decryption in matrix computation offloading. The proposed scheme can effectively protect the sensitive information of the vehicle and verify the correctness of the matrix computation results compared with the existing schemes. The computing overhead of encryption and decryption on the vehicle side can be effectively reduced by the matrix encryption method. © 2023 Zhejiang University. All rights reserved.