Mesh Grid Protection System for Integrated Circuit Security
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Solution Overview
Problem
Logic circuits and memory on electronic devices, such as integrated circuit chips, are vulnerable to hardware hacking, where hackers physically access internal logic circuitry and memory to derive secure data, and existing methods fail to effectively prevent such breaches.
Innovation Solution
A mesh grid protection system is implemented, comprising a ground plane, internal and external mesh grids, and transformation logic, which detects and prevents unauthorized access by transforming signals across gridlines, allowing verification logic to identify breaches and initiate security measures like clearing memory or powering down the IC.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mesh grid protection system is implemented to detect and prevent hardware hacking attempts, then security against physical breaches is improved, but device complexity increases due to additional grid structures and verification logic
Solution Approach 1:
The protection system divides the IC package into multiple sectors with gridlines spanning across them, creating segmented monitoring zones that detect breaches in different regions independently
Solution Approach 2:
The mesh grid structure is embedded within the IC package layers, with internal and external grids nested at different levels, allowing comprehensive protection without adding external bulk
2Measurement precision
If transformation logic is added to transform signals across gridlines for breach detection, then measurement precision of breach detection is improved, but device complexity increases due to additional transformation and verification circuits
Solution Approach 1:
Transformation logic acts as an intermediary between the physical gridlines and the verification logic, converting physical breach signals into verifiable digital signals that can be processed by the verification circuit
Solution Approach 2:
The system replaces direct physical monitoring with signal transformation and digital verification, substituting mechanical breach detection with electrical signal processing and logical verification
Data Source
AI summary
A mesh grid protection system is provided. The system includes assertion logic configured to transmit a first set of signals on a first set of grid lines and a second set of grid lines. The system also includes transformation logic to transform the first set of signals to generate a second set of signals, to transmit the second set of signals on a third set of grid lines that are coupled to the first set of grid lines, and to transmit the second set of signals on a fourth set of grid lines that are coupled to the second set of grid lines. In addition, the system includes verification logic to compare the second set of signals on the third and fourth set of grid lines to an expected set of signals.