Mechanical Lock for Computer Port Security
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current information handling systems lack a secure method to selectively enable or disable communication ports, posing a risk to data protection and security, as users cannot effectively prevent unauthorized access or data transfer during BIOS settings changes.
Innovation Solution
A mechanical lock mechanism integrated with the south bridge of a computer system, utilizing a key to physically rotate a mechanical lock between locked and unlocked positions, which controls the enabling or disabling of communication ports by altering the voltage state of a control line, thereby determining port functionality during BIOS POST execution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If communication ports are enabled for user access, then ease of operation is improved, but data security deteriorates due to unauthorized access risk
Solution Approach 1:
The system performs preliminary action by disabling communication ports before BIOS settings can be modified. The mechanical lock detects the locked state and proactively prevents access to SATA, USB, and other communication ports before any unauthorized configuration changes can occur, thereby securing data before the threat materializes.
Solution Approach 2:
The mechanical lock acts as an intermediary between the user and the communication ports. It mediates access by physically controlling the enablement of ports through a locked/unlocked state, allowing authorized users to access ports when unlocked while preventing unauthorized access when locked, thus resolving the contradiction between ease of operation and data security.
2Reliability
If communication ports are disabled for security, then data security is improved, but ease of operation deteriorates due to restricted access
Solution Approach 1:
The system applies dynamics by making the communication ports dynamically enabled or disabled based on the mechanical lock state. When the lock is unlocked, ports are enabled for normal operation; when locked, ports are disabled for security. This dynamic adjustment resolves the contradiction by adapting port accessibility to the current security context rather than maintaining a static state.
Solution Approach 2:
The mechanical lock system provides self-service security by automatically controlling port enablement based on its locked/unlocked state without requiring additional software or complex authentication. The physical lock state directly translates to port accessibility, providing simple yet effective security that improves data protection while maintaining ease of operation through intuitive physical control.
3Reliability
If a mechanical lock mechanism is added to control ports, then data security is improved, but device complexity increases
Solution Approach 1:
The invention extracts the security control function from the complex BIOS software environment and implements it through a simple mechanical lock mechanism. By taking out the security control from the software domain and placing it in the physical domain, the system achieves robust data security through a straightforward mechanical interface that does not require complex processing or additional electronic components.
Solution Approach 2:
The system replaces complex electronic or software-based security mechanisms with a simple mechanical lock system. Instead of using sophisticated authentication protocols, encryption, or software locks that require significant processing power and complexity, the invention uses a basic mechanical lock that physically controls port enablement, thereby achieving data security with minimal added complexity.
Data Source
AI summary
An information handling system includes a lock, a switch, and a south bridge. The lock is configured to receive a key and to alternate between a locked position and an unlocked position. The switch is in communication with the lock. The switch is configured to receive a signal from the lock, to close if the lock is in the locked position, and to open if the lock is in the unlocked position. The south bridge is in communication with the switch. The south bridge is configured to disable a plurality of communication ports of the information handling system when the switch is closed, and configured to enable the communication ports when the switch is opened.