Certificateless Anonymous Authentication Scheme Supporting Illegal Signatures Localization for Internet of Vehicles
In the Internet of Vehicles(IoV)environment,vehicles are connected to public networks through the Internet and information is vulnerable to various malicious attacks from attackers during transmission.Consequently,vehicle privacy information is leaked,which can threaten the safety of users.In 2022,to guarantee the security and privacy of message transmission in public communication between vehicles,researchers propose a certificateless anonymous authentication scheme for the IoV and proved that the scheme satisfies signature unforgeability under a random oracle model.However,security analysis revealed that their scheme is unable to resist malicious Key Generation Center(KGC)replacement attacks and collusion attacks between vehicles.Hence,an enhanced certificateless anonymous authentication scheme for the IoV is proposed.The proposed scheme features unforgeability based on the Elliptic-Curve Discrete-Logarithm Problem(ECDLP)under a random oracle model and resists coalition attacks jointly launched among vehicles.Additionally,the proposed scheme supports rapid illegal signature queries and can reduce the number of searches for illegal signatures in the correct child node by establishing a correlation between illegal signatures and the aggregate signature-verification equation after the aggregate signature verification fails,thus promptly locating illegal signatures.The proposed scheme reduces the computational cost in the aggregate signature-verification stage by at least 25％and achieves better security properties than similar solutions.
Internet of Vehicles(IoV)anonymous authenticationcertificateless signaturesignature forgeryillegal signatures localization
万方数据
维普
