Hardware Trojan horse detecting and positioning method and system based on voltage

A hardware Trojan detection and voltage technology, applied in the direction of electronic circuit testing, etc., can solve problems such as the difficulty of transient current test vectors, achieve the effect of eliminating process fluctuations and ensuring safety and reliability

Active Publication Date: 2014-07-16
FIFTH ELECTRONICS RES INST OF MINIST OF IND & INFORMATION TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

Due to the hidden characteristics of hardware Trojan horses, it is extremely difficult to obtain test vector pairs that can activate Trojan horse circuits to generate transient currents

Method used

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  • Hardware Trojan horse detecting and positioning method and system based on voltage
  • Hardware Trojan horse detecting and positioning method and system based on voltage
  • Hardware Trojan horse detecting and positioning method and system based on voltage

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0026] Such as figure 1 As shown, it is a schematic flow chart of a method for hardware Trojan detection and location based on voltage in an embodiment of the present invention, including the following steps:

[0027] S11. Obtain the waveform matrix of the chip to be inspected, wherein the waveform matrix of the chip to be inspected includes the jth chip to be inspected obtained by applying a voltage excitation signal to the ith power pad of the chip to be inspected The voltage waveform of the power pad, i=1, 2...n; j=1, 2...n, i≠j, n is the total number of power pads in the chip to be checked;

[0028] S12. Obtain the quiescent current of the chip to be inspected, wherein the quiescent current of the chip to be inspected is to apply a working voltage to the connection port...

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Abstract

The invention provides a hardware Trojan horse detecting and positioning method based on voltage. The hardware Trojan horse detecting and positioning method includes the steps that a waveform matrix of a chip to be detected is obtained and includes a voltage waveform, obtained through testing, of a J power source pad of the chip to be detected after a voltage excitation signal is exerted on an i power source pad of the chip to be detected; static currents of the chip to be detected are obtained; the waveform matrix of the chip to be detected is compared with a preset waveform matrix of an original chip; when the difference of voltage waveforms exceeds a threshold value, a first relation curve of the chip to be detected and a second relation curve of the original chip are obtained, and whether the chip to be detected includes Trojan horse or not is judged; according to the waveform matrix of the chip to be detected, the Trojan horse is positioned on the chip. The invention further provides a corresponding system, voltage is used for hardware Trojan horse detecting and positioning, so that technology fluctuation influences can be eliminated, detecting speed is high, and detecting precision is high.

Description

technical field [0001] The invention relates to the technical field of integrated circuit detection, in particular to a method for detecting and locating a hardware Trojan based on voltage, and a system for detecting and locating a hardware Trojan based on voltage. Background technique [0002] As one of the cornerstones of the modern information industry, integrated circuits (IC, Integrated Circuit) / chips are widely used in security-sensitive fields such as national defense, military affairs, finance, communications, and transportation. In order to shorten the chip design cycle and reduce costs, the current chip design uses third-party EDA (Electronic Design Automation, design automation) tools and third-party IP (Intellectual Property) cores; chip manufacturing generally adopts the method of entrusting third-party foundries. The speed of globalization and IC manufacturing process makes the supply chain of IC distributed all over the world. The separation of chip design an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/28
Inventor 侯波王力纬恩云飞何春华谢少锋
Owner FIFTH ELECTRONICS RES INST OF MINIST OF IND & INFORMATION TECH
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