SIM Vulnerability Detection With Secure AI Event Filtering
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Solution Overview
Problem
Existing methods for SIM vulnerability detection and prevention are inconvenient, complex for common users, do not ensure real-time operation, and fail to continuously detect vulnerabilities after installation in mobile equipment.
Innovation Solution
A vulnerability detection and prevention unit located in a secure processing region independent of the application and baseband processors, utilizing artificial intelligence to analyze and filter events, data, and instructions for SIM vulnerabilities, with the ability to update AI models via OTA or internet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a computer and software are used to check SIM functionality as described in US Patent No. US 8271948 B2, then SIM function checking capability is achieved, but the operation becomes inconvenient and complicated for common users
Solution Approach 1:
The SIM card performs self-diagnosis by executing diagnostic programs stored on its own memory. The SIM's processor automatically runs these programs to detect vulnerabilities and generate reports, eliminating the need for external computers and complex software setups. Users simply insert the SIM and receive results through the mobile device's interface.
2Adaptability or versatility
If OTA mechanism is used to install and update programs on SIM, then remote update capability is achieved, but security risks increase due to potential malicious codes
Solution Approach 1:
The system performs preliminary vulnerability detection by executing diagnostic programs before allowing OTA updates to proceed. The detection unit scans for known vulnerability patterns and malicious codes in advance, blocking potentially harmful updates while allowing safe ones through, thus preventing security issues before they occur.
Solution Approach 2:
A detection unit acts as an intermediary between the OTA mechanism and the SIM's program installation process. This intermediary layer analyzes incoming update packages, verifies their safety, and only permits installation of verified safe programs, thereby mediating between remote update capability and security protection.
3Measurement precision
If SIM vulnerability detection is performed using external computers and predefined check instructions, then vulnerability detection capability is achieved, but real-time continuous detection cannot be ensured after SIM installation
Solution Approach 1:
The detection unit is nested within the mobile device's processor architecture, specifically utilizing secure processing regions of the application processor or baseband processor. This nested structure allows the detection unit to continuously monitor SIM operations in real-time without requiring external computers, while maintaining accurate vulnerability detection through integrated AI model analysis.
4Reliability
If detection unit is located in secure processing region independent of application and baseband processors, then security is enhanced, but device architecture complexity increases
Solution Approach 1:
The detection unit is implemented as a separate, independent module within the secure processing region, segmented from the application processor and baseband processor. This segmentation isolates the security-critical detection functions in a protected environment, enhancing security reliability while the modular design minimizes architecture complexity through clear functional separation.
Data Source
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AI summary
The present invention refers to a method, a mobile equipment, and a system for vulnerability detection and prevention in a SIM. The method comprises generating a vulnerability detection and prevention unit located in a secure processing region that is independent of an application processor and a baseband processor; receiving events, data, and instructions, wherein the events, data, and instructions are sent from the SIM to the baseband processor or the application processor, or sent from the baseband processor or the application processor to the SIM; analyzing the received events, data, and instructions to determine whether the events, data, or instructions are associated with predetermined SIM vulnerabilities; and stopping the sending of the events, data, or instructions from the SIM or to the SIM in response to determining that the events, data, or instructions are associated with predetermined SIM vulnerabilities.