Dual Authentication Control Section for Relay Attack Prevention
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Solution Overview
Problem
Existing inter-device authentication technologies face challenges in achieving high accuracy and responsiveness, particularly due to the risk of relay attacks that can lead to authenticatee impersonation, especially in systems using ultra high frequency (UHF) or low frequency (LF) challenge-response authentication.
Innovation Solution
Implementing a dual authentication process using different wireless communication standards, where the first authentication process is performed based on a first wireless communication standard, and the second authentication process is initiated after the first authentication signal is transmitted or received, using a second wireless communication standard that is distinct from the first, thereby enhancing authentication accuracy and responsiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single authentication process is used, then the authentication process is simple, but the authentication accuracy and security are insufficient due to relay attack risks
Solution Approach 1:
The authentication process is divided into two distinct segments: a first authentication process using a first wireless communication standard and a second authentication process using a second wireless communication standard. Each authentication process uses different communication protocols and mechanisms, making it difficult for relay attacks to compromise both simultaneously. This segmentation approach enhances authentication accuracy while maintaining manageable process complexity through modular design.
2Reliability
If multiple authentication processes are executed sequentially, then authentication accuracy improves, but authentication time increases
Solution Approach 1:
The first authentication process is executed preliminarily to establish initial authentication status and determine whether to proceed with the second authentication process. This preliminary action allows the system to quickly filter out obviously unauthorized devices while reserving the more time-consuming second authentication process for cases where it is truly necessary, thereby optimizing overall authentication time while maintaining high accuracy.
3Productivity
If authentication processes are executed in parallel, then authentication responsiveness improves, but coordination complexity increases
Solution Approach 1:
The authentication system employs dynamic process execution where the second authentication process is conditionally started based on the status and results of the first authentication process. This dynamic approach allows the system to adapt to different authentication scenarios, executing both processes in parallel when needed for high responsiveness while avoiding unnecessary parallel execution that would increase coordination complexity. The control section dynamically adjusts the authentication flow based on real-time conditions.
Data Source
AI summary
A communication device achieves inter-device authentication with high accuracy and high responsiveness. The communication device includes a control section configured to execute a process related to transmission or reception of a first authentication signal and a second authentication signal that are necessary for a first authentication process for authentication of another communication device. The control section starts execution of a second authentication process for different authentication from the first authentication process, after transmission or reception of the first authentication signal and before transmission or reception of the second authentication signal.