Distributed EM Attack Detection in Control Circuit Units
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Solution Overview
Problem
Existing security mechanisms are vulnerable to external electromagnetic attacks, which are difficult to detect and counteract effectively.
Innovation Solution
A control circuit unit with detection circuit units, local and global counters, and a management circuit unit that detects electromagnetic attacks by sending signals and issuing warning notifications based on attack counts, enabling immediate system response.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If detection circuit units are distributed across multiple local areas, then electromagnetic attack detection capability is improved, but device complexity increases
Solution Approach 1:
The control circuit unit is divided into multiple local areas, each containing detection circuit units and local counters. This segmentation allows distributed electromagnetic attack detection across different regions of the device, improving overall detection capability while maintaining manageable complexity through modular organization.
Solution Approach 2:
The patent introduces a hierarchical structure with local counters at the area level and a global counter at the system level. This adds a spatial dimension to the detection architecture, allowing attacks to be tracked both locally and globally, thereby enhancing detection capability without proportionally increasing complexity.
2Measurement precision
If multiple local counters and a global counter are used to track attacks, then measurement precision of attack patterns is improved, but device complexity increases
Solution Approach 1:
Attack tracking is segmented into local counters for individual areas and a global counter for overall system monitoring. This segmentation enables precise measurement of attack patterns at different levels, allowing the system to distinguish between localized and widespread electromagnetic attacks.
Solution Approach 2:
The patent implements counters at multiple hierarchical levels (local and global), which provides more measurement data than a single counter would. This excessive action in terms of counting resources enables more precise attack pattern recognition while the hierarchical organization prevents unmanageable complexity.
3Speed
If detection circuit units send signals upon detecting electromagnetic attacks, then response speed is improved, but energy consumption increases
Solution Approach 1:
The detection circuit units continuously monitor for electromagnetic attacks and send signals immediately upon detection. This periodic monitoring approach ensures rapid response to attacks while the circuit units remain in a low-power state between detections, balancing response speed with energy consumption.
Data Source
AI summary
A control circuit unit includes: a target circuit unit, a plurality of detection circuit units, a plurality of local counters, a global counter, and a management circuit unit. The detection circuit units are disposed in a plurality of local areas of a target area within the control circuit unit, and the target area encompasses the target circuit unit. The detection circuit unit is used to send a first signal in response to a determination of receiving an external electromagnetic attack. The plurality of local counters update the number of recorded localized attack in response to receiving the first signal. The global counter accumulates the number of localized attacks to update the number of recorded globalized attacks. The management circuit unit issues a warning notification based on the number of globalized attacks and the number of localized attacks of each local counter.