Bitstream Generation Deterrence for Integrated Circuits
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Solution Overview
Problem
Existing technologies are ineffective in deterring reverse engineering of configuration bitstreams for integrated circuit devices, which can lead to piracy and unauthorized use.
Innovation Solution
Implementing a method that checks for degenerate designs and active force settings, triggering reverse engineering countermeasures such as slowing or suspending bitstream generation if a trip point is exceeded, and updating deterrence information to prevent illicit use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If bitstream generation is allowed without restrictions, then legitimate uses can proceed efficiently, but reverse engineering and piracy occur
Solution Approach 1:
The system performs preliminary actions by checking design characteristics and trip points before allowing bitstream generation. It monitors usage patterns in advance and triggers countermeasures before actual reverse engineering can occur, preventing harmful actions while maintaining legitimate operations.
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring bitstream generation patterns, usage frequency, and design characteristics. When abnormal patterns are detected (exceeding trip points), the system adjusts behavior accordingly, slowing or suspending generation to deter reverse engineering while allowing legitimate uses to continue.
2Object-affected harmful factors
If reverse engineering countermeasures are implemented, then piracy is deterred, but legitimate uses may be affected
Solution Approach 1:
The system dynamically adjusts its behavior based on detected patterns. Rather than applying static restrictions, it monitors usage in real-time and only slows or suspends bitstream generation when reverse engineering patterns are detected. This dynamic approach maintains ease of operation for legitimate users while providing effective deterrence against piracy.
Solution Approach 2:
The system applies different levels of protection to different usage scenarios. It allows normal, legitimate operations to proceed uninterrupted while applying additional monitoring and restrictions only when abnormal patterns are detected. This localized quality of protection minimizes impact on legitimate uses while maximizing deterrence effectiveness.
3Object-affected harmful factors
If monitoring and countermeasures are added to the bitstream generation process, then reverse engineering is deterred, but device complexity increases
Solution Approach 1:
The monitoring and countermeasure system serves multiple functions: it detects reverse engineering patterns, monitors usage patterns, tracks design characteristics, and provides feedback for adaptive protection. By making the system multi-functional, the patent reduces the need for separate dedicated components, thereby limiting the increase in overall device complexity while maintaining effective reverse engineering prevention.
Data Source
AI summary
A method for detecting reverse engineering of a configuration bitstream for an integrated circuit is described. A user design is obtained. It is determined if the user design is a degenerate design. If the user design is a degenerate design, it is determined if a trip point for bitstream generation has been tripped. If the trip point for the bitstream generation has not been tripped, deterrence information is updated and the bitstream generation is allowed to take place. If the trip point for the bitstream generation has been tripped, at least one reverse engineering countermeasure is initiated.