Research On The Application Of Discrete Logarithm-based Aggregate Signcryption In Internet Of Vehicles

As an open wireless self-organizing network,the Internet of Vehicles is used in the area of transport in smart urban areas,which can realize multi-party interaction between vehicles,roads and intelligent terminals,and offer real-time on-road status info to vehicle users,thus reducing traffic congestion and accidents.Due to the openness and sensitivity of the network,messages transmitted over the network can be easily stolen and tampered with.Secure communication in the Internet of Vehicles is generally guaranteed through the authentication mechanism,but there is a risk of user privacy leakage in the authentication process.Aiming at this issue,certificateless aggregated signcryption algorithm based on discrete logarithm(CLASC-DL)is propsed and applies it to the secure communication of the Internet of Vehicles.The algorithm uses Hash function to bind the identity of the user with partial of the public key to create partial of the user’s private key to prevent the public key substitution attack.When decrypting,the identity of the signcryption user is used as an output,which can not only verify the legitimacy of the identity of the signcryption user,but also effectively hide the identity information of the signcryption user.The safety of the algorithm is evidenced with the random oracle model.The CLASC-DL algorithm does not use bilinear pair operations,and only requires 3n dot multiplication operations in the aggregation decryption stage,which is more computationally efficient.The efficiency of several existing signcryption algorithms is compared and parsed,and the computational productivity is increased to a certain level.Based on the CLASC-DL algorithm,the Internet of Vehicles signcryption(ACLASC-IoV)scheme adds pseudonymous technology,which uses the XOR operation to fuse the real identity of the vehicle user with the Hash function containing the traceability key to generate a pseudonym,and the vehicle user uses the pseudonym to communicate,effectively preserving the identity privacy of the vehicle,and the use of batch certification has improved the validation efficiency by about 33%.The security analysis shows that the ACLASC-IoV solution meets the security requirements of data confidentiality,anonymity,traceability,and anti-replay attack.Comparing the performance with other available proposals,the outcome indicates that the proposal has less overhead,higher efficiency and is more suitable for the Internet of Vehicles environment while ensuring security.There are 24 pictures,tables 3 and 74 references.