Removable Security Module Authentication via Challenge-Response
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Solution Overview
Problem
Facilities with security or privacy concerns restrict the entry of electronic devices with cameras, microphones, or communication capabilities, requiring users to leave or check these devices before entering, but there is no effective method to ensure only authorized modules are used once inside.
Innovation Solution
The design of modular electronic devices that allow removable security modules, which undergo challenge-response authentication to ensure only authorized modules are paired with the device, using signaling mechanisms like LEDs or audible signals to verify pairing, and the use of dummy modules to prevent unauthorized replacements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electronic devices with cameras, microphones, or communication capabilities are brought into facilities, then device functionality and user utility are improved, but security and privacy policies are violated
Solution Approach 1:
The device is divided into a main body and separate removable security modules (camera module, microphone module, communication module). Users can selectively remove these modules before entering facilities with security restrictions, maintaining device functionality for other purposes while eliminating security risks. The modular architecture allows dynamic reconfiguration based on facility requirements.
Solution Approach 2:
Security-sensitive components (camera, microphone, communication modules) are extracted as separate removable modules from the main device body. This extraction enables users to physically remove these components when entering facilities with security or privacy concerns, while retaining the ability to reattach them later, thus resolving the contradiction between device utility and security compliance.
2Adaptability or versatility
If removable modules are allowed in electronic devices, then adaptability and user convenience are improved, but unauthorized module substitutions become possible
Solution Approach 1:
Security modules are pre-authenticated by the device before being allowed to connect. The device verifies the authenticity and authorization status of each module through cryptographic challenge-response protocols or unique identifier verification. This preliminary authentication ensures that only authorized modules can be substituted, preventing unauthorized replacements while maintaining legitimate module interchangeability.
Solution Approach 2:
The system implements continuous verification feedback mechanisms where the device periodically checks the authorization status of connected modules. If an unauthorized module is detected or a authorized module is removed, the system provides feedback through alerts, warnings, or functional restrictions, ensuring that only authenticated modules operate within the device.
Data Source
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AI summary
A method at an electronic device having at least one slot to receive a removable security module, the method including detecting coupling of the security module to the electronic device; sending a challenge to the security module; receiving a response from the security module; checking whether the response is valid at the electronic device; and providing a signal based on results of the checking, wherein only a defined number of security modules are configured to provide a valid response per slot or for each security module type at the electronic device. Further, a method for preventing functionality on an electronic device, the method including replacing a valid security module coupled to the electronic device with a dummy security module; detecting uncoupling of the dummy security module; and providing an alert.