Dual Authentication Control Unit for Relay Attack Prevention
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Solution Overview
Problem
Existing inter-device authentication systems face challenges in balancing security and user convenience, particularly in preventing relay attacks where authentication is compromised, and require additional operations for multiple authentication processes.
Innovation Solution
A communication device system that performs a second authentication process before the first authentication process, using distinct wireless communication standards and signal types to enhance security without additional user recognition, including a control unit that manages the transmission and reception of signals for both processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple authentication processes are implemented to improve security, then security is improved, but device complexity increases
Solution Approach 1:
The patent combines first authentication process (using first wireless communication standard) and second authentication process (using second wireless communication standard) into a unified authentication system. The control unit integrates both authentication processes, allowing them to work together seamlessly. This merging approach maintains high security through multiple authentication layers while managing complexity through unified control, directly resolving the technical contradiction between security improvement and complexity increase.
Solution Approach 2:
The patent performs the second authentication process (using second wireless communication standard) before the first authentication process (using first wireless communication standard). This preliminary action of executing authentication in a specific sequence allows the system to establish a secure foundation first, then layer additional authentication on top. The control unit manages this sequencing to prevent relay attacks while maintaining organized process flow, thereby improving security without creating chaotic complexity.
2Reliability
If multiple authentication processes are implemented to prevent relay attacks, then reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The control unit automatically manages the entire dual authentication process without requiring user intervention. The system self-services by autonomously executing the second authentication process first, then the first authentication process, and making authorization decisions based on both results. Users simply need to initiate connection, and the system handles all authentication complexity internally, maintaining ease of operation while achieving high reliability through multiple authentication layers.
3Reliability
If second authentication process is executed before first authentication process, then relay attacks are prevented, but process complexity increases
Solution Approach 1:
The patent executes the second authentication process (using second wireless communication standard) as a preliminary step before the first authentication process (using first wireless communication standard). This preliminary authentication establishes initial security verification, and the control unit manages the sequence to prevent relay attacks. By structuring the authentication flow with the second process first, the system creates a secure foundation that simplifies the overall security architecture while maintaining effective relay attack prevention.
Solution Approach 2:
The patent segments the authentication process into two distinct phases: second authentication process (using second wireless communication standard) and first authentication process (using first wireless communication standard). The control unit manages these segmented processes separately but coordinates them systematically. This segmentation allows each authentication layer to focus on specific security requirements, making the overall complex process more manageable and less error-prone, thereby preventing relay attacks without creating unmanageable complexity.
Data Source
AI summary
To realize more secured Authentication while convenience is secured. There is provided a communication device including a control unit configured to control a process relating to transmission or reception of a first authentication signal and a second authentication signal used for a first authentication process that is authentication between the communication device and another communication device, in which the control unit further controls a second authentication process that is authentication different from the first authentication process and starts a process relating to transmission or reception of signals used for a second authentication process that is authentication different from the first authentication process before transmission or reception of the first authentication signal.