Vehicular Access Point Authentication Latency Reduction
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Solution Overview
Problem
Existing solutions for authenticating members of a vehicular micro cloud suffer from high latency, making them unsuitable for real-world applications, and are prone to attacks due to the transmission of authentication keys between a cloud server and the hub.
Innovation Solution
A system where an ego vehicle, determined based on similar heading and schedule data with a group of remote vehicles, serves as a vehicular access point, reducing latency by authenticating members locally and ensuring security through a certification process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If authentication keys are transmitted between cloud server and hub, then authentication function is provided, but latency increases and security is compromised
Solution Approach 1:
The patent extracts the authentication key transmission function from the cloud server and relocates it to the vehicular access point (hub). This allows authentication to occur locally within the vehicular micro cloud without requiring communication with the remote cloud server, thereby reducing latency while maintaining security through local key management
Solution Approach 2:
The vehicular access point (hub) acts as an intermediary between the cloud server and other vehicular micro cloud members. The hub receives authentication keys from the cloud server and distributes them locally to members, eliminating the need for direct key transmission between the cloud server and each member, thus reducing latency and improving security
2Loss of time
If ego vehicle is selected as vehicular access point based on similar heading and schedule, then authentication latency is reduced, but system complexity increases due to selection criteria
Solution Approach 1:
The patent uses changes in vehicular parameters (heading and schedule data) to dynamically select the appropriate ego vehicle as vehicular access point. By monitoring these parameters and selecting hubs based on similarity thresholds, the system achieves low-latency authentication while keeping the selection logic relatively simple and based on readily available vehicular data
3Reliability
If certification process is implemented for ego vehicle, then security is enhanced, but authentication time increases
Solution Approach 1:
The certification process is performed in advance before the vehicular access point needs to authenticate other members. The ego vehicle undergoes certification to ensure trustworthiness, and this certification status is stored and reused for subsequent authentication operations, thereby enhancing security without adding time to the actual authentication process
Data Source
AI summary
The disclosure includes embodiments for authenticating members of a vehicular micro cloud by a vehicular access point. A method executed by an edge server includes determining a group of remote vehicles having a similar heading and a similar schedule as an ego vehicle. The method includes determining that the ego vehicle is within a communication range of the group based on location data of the ego vehicle and the group. The method includes selecting the ego vehicle to serve as a vehicular access point for a vehicular micro cloud including the ego vehicle and the group as members. The method includes transmitting selected authentication keys to the ego vehicle wherein the selected authentication keys correspond to the group so that the ego vehicle authenticates the group based on the selected authentication keys.