Research on Efficient Data Secure Sharing in Vehicular Internet Based on Consortium Blockchain
[Purpose/significance]This paper aims to solve the problems of high computational overhead,low sharing efficiency,and inadequate security in existing data sharing schemes for vehicular internet.[Method/process]This paper designs an efficient and secure data sharing scheme for vehicular network,which adopts the Linear Secret Sharing Scheme(LSSS)based Ciphertext-Policy At-tribute-Based Encryption(CP-ABE)algorithm and the consortium blockchain group technology to realize efficient data sharing in vehic-ular networks and reduce data redundancy.Through the optimization of consensus mechanisms,the time efficiency is further improved and the data security and privacy of vehicular entities are ensured.[Result/conclusion]The proposed scheme is capable of accommo-dating the complex characteristics of rapidly moving and dynamically changing vehicular networks,enabling flexible access control and high degree of data sharing freedom to meet the requirements of vehicular network scenarios.
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