Intrusion Detection Track for Integrated Circuit Security
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Solution Overview
Problem
Existing solutions for detecting intrusion attacks on integrated circuits fail to detect the removal of insulating layers covering conductive paths, allowing hackers to simulate electric continuity and avoid detection.
Innovation Solution
A device comprising a single-piece conductive material surrounded by insulating material with elongated conductive tracks connected to a mobile element and conductive portions, which changes length upon removal of insulating material, causing displacement or pivoting to establish an electric connection and detect attacks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple conductive path is used to detect intrusion, then the device complexity is reduced, but the reliability of detection is worsened because it cannot detect removal of insulating layers
Solution Approach 1:
The conductive path is segmented into multiple sections with at least one section being movable relative to others. This segmentation allows the detection system to distinguish between genuine interruptions and simulated continuity, thereby improving detection reliability without significantly increasing overall structural complexity.
Solution Approach 2:
The patent introduces dynamic elements where conductive path sections can move relative to each other. This dynamic behavior enables the system to detect insulating layer removal by observing unexpected movements or position changes, enhancing reliability while maintaining relatively simple structure.
2Reliability
If conductive paths are made more complex to detect insulating layer removal, then detection reliability is improved, but device complexity increases
Solution Approach 1:
The patent uses movable sections as intermediaries between the insulating layer and the detection circuitry. These movable sections act as mediators that translate the physical state of insulating layers into detectable electrical signals, improving reliability without requiring complex direct detection mechanisms.
Solution Approach 2:
The patent replaces complex mechanical detection systems with electrical detection of movable conductive sections. Instead of using mechanical sensors to detect insulating layer removal, the system uses electrical continuity detection of movable conductive paths, simplifying the overall device while maintaining high reliability.
3Ease of operation
If the conductive path is made continuous to prevent false alarms, then ease of operation is improved, but the ability to detect simulated continuity attacks is worsened
Solution Approach 1:
The patent implements dynamic movable sections within the conductive path that can change position in response to external forces such as insulating layer removal. This dynamic characteristic allows the system to maintain operational simplicity while automatically detecting simulated continuity attacks through unexpected position changes.
Solution Approach 2:
The movable conductive sections provide feedback about the physical state of the insulating layers and potential attacks. When an attack occurs, the movable sections shift position, creating a detectable change in electrical continuity that provides immediate feedback about the security status without complicating operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively detects the removal of insulating layers, preventing hackers from simulating electric continuity and ensuring secure operation of integrated circuits by reliably detecting intrusion attacks.
Implementation Method 1
This results in a variation in the length of said track in an attack by removal of the insulating material, causing a displacement of the mobile element until it contacts the conductive portion
Implementation Method 2
This results in a variation in the length of the second and third bars in the attack by removal of the insulating material, causing a pivoting of the first bar until it contacts the conductive portion
Data Source
AI summary
An integrated circuit including an intrusion attack detection device. The device includes a single-piece formed of a conductive material and surrounded with an insulating material and includes at least one stretched or compressed elongated conductive track, connected to a mobile element, at least one conductive portion distant from said piece and a circuit for detecting an electric connection between the piece and the conductive portion. A variation in the length of said track in an attack by removal of the insulating material, causes a displacement of the mobile element until it contacts the conductive portion.