Method for detecting malicious circuit in FPGA (field programmable gate array) chip by power consumption analysis and system thereof

Abstract

The invention discloses a system for detecting malicious circuits in an FPGA (field programmable gate array) chip by power consumption analysis. The system comprises a DC (direct current) stabilized voltage source for supplying DC power to a to-be-detected FPGA chip and an excitation applying FPGA chip; a current probe for measuring a transient current at the power end of the to-be-detected FPGA chip; an oscilloscope triggered by a trigger signal generated by the to-be-detected FPGA chip to collect the current signal measured by the current probe; the excitation applying FPGA chip for applying an excitation signal to the to-be-detected FPGA chip, and transmitting the response signal of the to-be-detected FPGA chip to a computer for further verification and comparison with an expected response value; and the computer for receiving excitation restraint compiled by a user, generating a test vector, and completing response verification, oscilloscope setting, waveform data collection, data analysis and treatment. The invention also discloses a method for detecting malicious circuits in the FPGA chip by using the above system.

Description

technical field [0001] The invention relates to circuit detection technology, in particular to a method and system for analyzing and detecting malicious circuits in FPGA chips. Background technique [0002] In recent years, although my country's integrated circuit industry has achieved considerable development, many key, high-end and high-end integrated circuits (such as high-performance CPU, DSP, FPGA and other chips) still mainly rely on imports. These imported integrated circuits are widely used in national defense Systems, weapons and equipment, government agencies, finance, transportation, telecommunications and other security-sensitive fields. Among them, the FPGA chip is reconfigurable. The existing mainstream FPGA chips are based on SRAM technology, and their actual functions are determined through the configuration data (bitstream), which makes the FPGA chip vulnerable to failure in the stages of design, programming configuration, and use. The tampering by the oppon...

AI Technical Summary

Problems solved by technology

Given an actual FPGA chip, due to the lack of a corresponding hardware detection system, the existing technology cannot determine whether there is a malicious circuit in the FPGA chip

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