Key Device Presence Verification for Secure Data Transmission
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Solution Overview
Problem
Current data transmission systems in kiosk computers lack secure mechanisms to ensure that data is only transmitted to the host when the authorized user is present, and existing encryption methods are vulnerable to hacking if data is intercepted.
Innovation Solution
A data transmission system that incorporates a key device, exclusive to the user, to determine whether to transmit data to the host and optionally encrypts data using a key associated with the key device, ensuring secure data communication by only allowing transmission when the key device is nearby.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If data transmission is allowed during user absence, then system usability is improved, but data security deteriorates
Solution Approach 1:
The patent introduces a key device as an intermediary between the input device and host. The key device acts as a mediator that must be present for data transmission to occur, thereby securing data transmission while allowing continuous system usability when the authorized user is present
2Reliability
If complex encryption techniques are used, then data security is improved, but vulnerability to hacking deteriorates
Solution Approach 1:
The key device serves as a physical intermediary that prevents unauthorized access even if encryption is compromised. The presence requirement of the key device creates an additional security layer that mitigates hacking vulnerability regardless of encryption strength
Solution Approach 2:
The system performs preliminary verification by checking for the presence of the key device before allowing data transmission. This preliminary action prevents unauthorized access attempts before they can exploit potential encryption vulnerabilities
3Reliability
If key device presence verification is implemented, then data security is improved, but system complexity deteriorates
Solution Approach 1:
The key device performs multiple functions: it serves as a presence indicator, an authentication mechanism, and a transmission trigger. This multi-functionality reduces the need for separate security components, thereby limiting the increase in system complexity
Data Source
AI summary
There is provided a data transmission system including a human input device and a host. Before transmitting data to the host, the human input device checks whether there is any previously paired key device nearby. If there is no previously paired key device appearing close to the human input device, the human input device is arranged not to transmit data or to transmit non-dedicated data to the host.