Dynamic Mesh Intrusion Detection via Reconfiguration
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Solution Overview
Problem
Existing intrusion detection systems for protecting sensitive information passing through printed and integrated circuits are vulnerable to sophisticated physical attacks, where attackers can reverse-engineer the protection meshes and short-circuit electrical circuits, rendering the protection ineffective.
Innovation Solution
An intrusion detection system with a detection film comprising mesh surfaces and a configuration module that dynamically reconfigures the interconnections between cells, forming a variable and complex mesh geometry over time, making it difficult for attackers to bypass the protection and increasing the complexity of intrusion attempts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mesh structure and patterns are made more complex to respond to sophisticated attacks, then the detection capability is improved, but the development time and cost increase
Solution Approach 1:
The patent implements dynamic reconfiguration of the mesh interconnections through a configuration module that can change the connection patterns between cells over time. This allows the mesh to adapt its structure dynamically, providing varied detection capabilities without requiring permanently complex physical designs. The system switches between different interconnection patterns, effectively making the protection adaptive rather than static.
Solution Approach 2:
The invention changes the operational parameters of the mesh by reconfiguring which cells are interconnected and how they are connected. Instead of changing the physical structure, the system modifies the electrical interconnection parameters through software-controlled switching, allowing the same physical mesh to provide multiple detection patterns and respond to different attack scenarios.
2Reliability
If the mesh structure is made more complex to prevent reverse engineering, then the security is improved, but the manufacturing cost increases
Solution Approach 1:
The patent uses dynamic reconfiguration to achieve security without permanent structural complexity. The mesh cells themselves remain simple and easy to manufacture, but their interconnections are dynamically controlled through a configuration module. This separation of simple physical structures from complex operational behavior reduces manufacturing costs while maintaining security.
Solution Approach 2:
The invention makes a single, relatively simple mesh structure serve multiple security functions through reconfiguration. The same physical mesh can be arranged in different interconnection patterns to provide various detection capabilities, making reverse engineering difficult without requiring multiple complex physical mesh designs. This multi-functionality reduces the number of manufacturing variants needed.
3Ease of manufacture
If the mesh interconnections are fixed, then the manufacturing is simpler, but the protection can be circumvented after reverse engineering
Solution Approach 1:
The patent introduces dynamic reconfiguration capability to the mesh interconnections while maintaining simple physical cell structures. The configuration module allows the system to change which cells are interconnected and how they connect, providing adaptability against reverse engineering. This dynamic element is added through controllable switches rather than complex permanent structures, preserving manufacturing simplicity.
Solution Approach 2:
The system can periodically reconfigure the mesh interconnections, changing the detection patterns at regular intervals. This periodic action ensures that even if an attacker reverse engineers one configuration, the protection pattern changes before the attack can be executed, maintaining effectiveness without requiring permanently complex structures.
Data Source
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AI summary
The invention relates to a system (1) for detecting intrusions, which comprises: mesh surfaces (2), each mesh surface (2) comprising cells (3) which comprise a pattern that is a portion of a continuous electrical circuit; interconnection surfaces (4) which comprise connectors (24) that are suitable for connecting cells (3) of the mesh surfaces (2) according to a first configuration for forming groups of electrically connected cells (3), the patterns forming a continuous electrical circuit of patterns; a detection module (8) capable of detecting a modification of an impedance which is characteristic of each group of cells, the system (1) also comprising a module (6) for configuring interconnections of connectors suitable for modifying the first configuration over time so as to obtain at least one second configuration of the interconnection surface (4).