An Identity-Based Anonymous Authentication Method in VANET

Abstract

The present invention provides an identity-based anonymous authentication method in a vehicular ad hoc network, which is characterized in that it includes the following steps: the trusted center TA discloses public parameters params; When registering, a unique identification number and key pair will be obtained; the trusted center TA issues a unique identification number for each roadside infrastructure node RSU; identity authentication is performed. The present invention proposes a new identity-based anonymous authentication idea, and further proposes a new identity-based anonymous authentication scheme for the vehicle network, using identity-based encryption technology to reduce the workload of system management public key certificates and node certificate authentication The cost of , not only meets the needs of identity authentication between vehicle nodes and roadside unit nodes, but also ensures identity authentication between vehicle nodes.

Description

technical field [0001] Aiming at the problem of identity authentication in the vehicle self-organizing network, the invention proposes an identity-based anonymous authentication method. Background technique [0002] Vehicle Ad hoc Network (VANET) is a new type of multi-hop mobile wireless communication network as a specific application of mobile ad hoc networks (MANETs) and wireless sensor networks (WSNs) in the field of intelligent transportation. , has become a common research hotspot in both academia and industry in recent years, and has great strategic significance in improving people's livelihood. The vehicle ad hoc network is composed of On Board Unit (OBU) and Road Side Unit (RSU). Vehicle unit nodes communicate with other vehicle unit nodes (Vehicle to Vehicle, V2V) or roadside infrastructure unit nodes (Vehicle to Infrastructure, V2I) during high-speed driving, thus building a self-organizing, distributed, easy-to-deploy, Inexpensive, open-structure inter-vehicle ...

AI Technical Summary

Problems solved by technology

In the same year, Lin et al. proposed a landmark GSB scheme based on group signature [Xiaodong Lin, Xiaoting Sun, Xiaoyu Wang, Chenxi Zhang, Pin-Han Ho, XueminShen.TSVC: timed efficient and secure vehicular communications with privacypreserving.IEEE Trans.Wireless Communications 7(12-1): 4987-4998(2008)], this scheme only needs to store a group public key and a private key, which can effectively save storage overhead, but the verification pressure is relatively high

In 2008, Lu et al. proposed another ECPP scheme to solve the privacy protection problem [Rongxing Lu, Xiaodong Lin, Haojin Zhu, Pin-Han Ho, Xuemin Shen: ECPP: Efficient Conditional Privacy Preservation Protocol for Secure Vehicular Communications. INFOCOM 2008: 1229- 1237], they assume that vehicles and RSUs can dynamically cooperate. This scheme can reduce the computational overhead, but it lacks consideration for the small size of the passenger car and non-repudiation

However, this scheme relies on the reliability of the RSU. If the RSU is dishonest or is maliciously attacked and controlled by an attacker, it will lead to serious consequences such as disclosure of private information and loss of keys.