USIM-Based Mutual Authentication for Vehicle Communication Security
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Solution Overview
Problem
Current vehicle communication technologies, such as DSRC and WAVE, lack sufficient security authentication, posing risks to personal information and service provision.
Innovation Solution
A method involving the use of a User Subscriber Identity Module (USIM) card for mutual authentication between on-board equipment and roadside equipment, generating session keys for encryption and decryption of data, and verifying authentication information through a vehicle service server, leveraging existing wireless network authentication protocols like AKA and EAP-AKA.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If vehicle communication uses DSRC or WAVE technology, then communication between road side equipment and on board equipment is enabled, but security authentication is insufficient
Solution Approach 1:
The patent introduces a USIM card as an intermediary authentication element that mediates between the on board equipment and the authentication server. The USIM card stores authentication information and session keys, enabling secure verification without requiring direct trust between all system components. This intermediary approach resolves the contradiction by maintaining communication versatility while establishing reliable security authentication through the USIM card's authentication information.
2Reliability
If a separate authentication server is deployed for vehicle communication, then security authentication is improved, but system complexity and cost increase
Solution Approach 1:
The patent makes the USIM card multi-functional by integrating both authentication information storage and session key management capabilities into a single component. The USIM card serves as both the authentication credential and the key management device, eliminating the need for separate dedicated authentication servers. This multi-functionality resolves the contradiction by maintaining strong security authentication while reducing system complexity and infrastructure costs.
3Ease of operation
If authentication information is transmitted without encryption, then data transmission is simple, but personal information security is compromised
Solution Approach 1:
The patent performs preliminary encryption of authentication information using session keys before transmission. The USIM card generates and stores session keys that are used to encrypt authentication information prior to transmission over the communication channel. This preliminary encryption action resolves the contradiction by ensuring personal information security without complicating the transmission process, as the encryption is performed automatically as part of the authentication flow.
Data Source
AI summary
A vehicle communication authentication system performs mutual authentication with an authentication subject by performing a user subscriber identify module (USIM)-based authentication protocol in a wireless network, mounts a USIM card in which mutual authentication is succeeded in a vehicle terminal, and performs authentication of vehicle communication with a server that provides a vehicle service.