Strong Privacy Preserving Dual Authentication Method Based on Node Identity and Reputation in Internet of Vehicles

Abstract

The invention discloses a strong privacy protection dual authentication method based on node identities and reputations in Internet of vehicles. A user registers with an authentication center to obtain unique secret information shared with the authentication center; the user stores vehicle node initialization parameter information into a TPM security storage area; when the user expects interaction between vehicle applications on vehicle nodes and a background application server, the user needs to input identity information and an authentication process of the vehicle nodes and a background is executed by TA; the authentication process is as follows: a temporary encryption key with the TA is established to carry out symmetrical encryption transmission on the information through a bilinear pairing principle, the TA carries out integrity and consistency detection on the received information, verifies legality of real and temporary identities of the vehicle nodes and calls an ES to compute the node reputation, if the identities of the vehicle nodes are legal finally and the reputations exceed a threshold, the authentication of communication between the vehicle nodes and the background is completed. According to the method, the authentication security is enhanced, the identity privacy and the trajectory privacy of the user are protected, the authentication efficiency is improved and the authentication time delay is reduced.

Description

technical field [0001] The invention belongs to the field of information security, and relates to a wireless communication technology for vehicle-mounted mobile application interaction in a vehicle networking environment, in particular to authentication and information encryption technologies. Background technique [0002] The Internet of Vehicles is the specific application of the Internet of Things in the automotive field. Based on the in-vehicle mobile Internet (Telematics), it is a system for exchanging information between vehicles and X (X: vehicles, roads, people and the Internet, etc.) according to agreed communication protocols and data interaction standards. However, excessive reliance on intelligent perception technology, control technology, communication technology and computer technology will make the Internet of Vehicles system deployed on a large scale in the future more vulnerable to malicious attacks. For this reason, in recent years, with the upsurge of Int...

AI Technical Summary

Problems solved by technology

[0006] In view of the aforementioned security issues such as the incomplete reliability of authentication based on objective evidence and the privacy and efficiency requirements caused by the large-scale and high-dynamic characteristics of the Internet of Vehicles, the present invention proposes a strong privacy protection based on vehicle node identity and reputation for the vehicle-background communication scenario. The double authentication method aims to improve the security of vehicle nodes and background authentication, privacy protection and accuracy of authentication decision-making under the condition of time tolerance, so as to provide accurate judgment basis for later V2V authentication

Images