Device Pairing via Physical Link and Virtual Authentication Disk
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Solution Overview
Problem
Existing device pairing methods rely on wireless transmission, which is vulnerable to security issues and interference, leading to failures in data exchange and authentication.
Innovation Solution
A device pairing method that uses a physical connecting line to transmit authentication information and then enables wireless communication between devices, utilizing a virtual authentication disk and USB OTG criteria to ensure secure and convenient data exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless transmission is used to exchange authentication information, then convenience is improved, but security is worsened due to vulnerability to capture and interference
Solution Approach 1:
The patent performs authentication information exchange through a physical connecting line before wireless communication is established. This preliminary action through a secure physical channel ensures that authentication credentials are transmitted safely before the less secure wireless channel is activated, resolving the contradiction between convenience and security.
Solution Approach 2:
The physical connecting line acts as an intermediary medium that facilitates secure authentication information exchange. By introducing this physical intermediary, the system can establish secure credentials before transitioning to wireless communication, thereby maintaining both security and subsequent convenience.
2Ease of operation
If wireless transmission is used for data exchange, then ease of operation is improved, but reliability is worsened due to interference and signal capture
Solution Approach 1:
The patent establishes authentication credentials through a physical connecting line before wireless data exchange begins. This preliminary setup ensures that subsequent wireless communications are protected by pre-shared secure credentials, improving the reliability of data exchange while maintaining operational ease.
Solution Approach 2:
The patent replaces the mechanical/physical connection method with wireless communication for data exchange, but only after securing authentication through the physical channel. This substitution maintains ease of operation while the preliminary physical authentication ensures reliability.
3Reliability
If physical connecting line is used for authentication, then security is improved, but device complexity is worsened due to additional connection requirements
Solution Approach 1:
The patent utilizes a universal USB connecting line that serves multiple functions: physical connection, authentication information exchange, and device identification. This multi-functionality reduces the need for separate specialized components, thereby improving security without significantly increasing device complexity.
Solution Approach 2:
The patent uses the existing USB interface standard that is already widely copied and implemented in various devices. By leveraging this established, universally copied interface, the system achieves secure authentication without adding complex proprietary connection requirements.
Data Source
AI summary
A device pairing method relates to steps of transmitting authentication information to a second device from a first device via a physical connecting line. First, a connectivity interface on the second device is electrically connected to an authentication connectivity interface on the first device via a connecting line; second, the first device in the mode of the virtual authentication disk is electrically connected to the second device; third, authentication information in the virtual authentication disk is accessed by an application program of the second device; fourth, an electrical connection between the second device and the first device is disabled with the connecting line removed; finally, the first device is accessed by the application program of the second device when the authentication information is transmitted to a network interface on the first device through some wireless networks of the second device. As such, the first device as a network device for storage acquires access authentication safely; the first device as a multimedia device with Bluetooth connections exchange connectivity information quickly.