Modular Digital Chassis Lock for Authenticated Element Removal
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Solution Overview
Problem
Existing information handling systems lack effective tamper-resistant mechanisms to secure removable elements such as motherboards, which can be compromised without proper user verification.
Innovation Solution
A modular digital chassis lock assembly incorporating a sensor, plunger, muscle wire, and security controller that engages and disengages the chassis based on verified user credentials, providing enhanced tamper resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional mechanical lock is used, then the structure is simple, but the tamper resistance and security verification are insufficient
Solution Approach 1:
The patent combines mechanical lock components (plunger, latch, spring) with electronic security features (sensor, controller, credential verification) into an integrated digital chassis lock assembly. The sensor detects element removal attempts, the controller verifies user credentials, and the plunger mechanically engages the latch - merging multiple security layers into a single unified system that provides both simplicity and enhanced security.
Solution Approach 2:
The patent replaces traditional mechanical key-based locking with an electronic credential verification system. Instead of requiring physical keys, the system uses digital credentials verified by a controller, which then actuates the mechanical plunger and latch mechanism. This substitution enhances security while maintaining the simplicity of mechanical engagement.
2Reliability
If no sensor detection is implemented, then the device complexity is low, but unauthorized removal of elements can occur without detection
Solution Approach 1:
The sensor is positioned to detect element removal attempts before the credential verification process begins. The system performs preliminary detection of the removal attempt, then triggers the credential verification only if needed, preventing unauthorized removal while maintaining system simplicity by only activating security protocols when threats are detected.
Solution Approach 2:
The sensor provides real-time feedback to the controller about the element's status (locked, unlocked, or removal attempt). This feedback loop enables the system to respond appropriately to user actions, verifying credentials when removal is attempted and allowing normal operation when authorized, thereby enhancing security without requiring constant complex monitoring.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures secure removal of elements like motherboards only after valid user authentication, preventing unauthorized access and tampering.
Implementation Method 1
cause the muscle wire to move the plunger from the first position to a second position
Data Source
AI summary
A lock for an information handling system includes a sensor configured to detect removal of an element from a chassis prior to verification of a user credential, and a plunger that engages the chassis at a first position. A security controller verifies the user credential, and causes the muscle wire to move the plunger from the first position to a second position in response to the verified user credential.