Hardware Trojan horse detection device and method based on weak same paths

Abstract

The invention belongs to the field of integrated circuit hardware Trojan horse detection methods. Time delay information on a weak same path can be rapidly and effectively detected so that complexityand the cost of chip detection are reduced and the influence of process deviation is eliminated. The invention discloses a hardware Trojan horse detection device and method based on weak same paths. The method comprises the following steps: 1) performing static timing analysis on an integrated circuit layout; 2) setting a weak same path delay threshold, and analyzing and determining a weak same path set R; 3) analyzing the sensitivity of the weak same path, and screening the weak same path set; 4) implanting a multi-loop on-chip delay Trojan horse self-detection structure, and analyzing the effectiveness; 5) testing the delay information of the path after chip manufacturing; and 6) comparing the difference values of the delay information, and judging the path suspected to be implanted intothe Trojan. The method is mainly applied to integrated circuit design and manufacturing occasions.

Description

technical field [0001] The invention belongs to the field of integrated circuit hardware Trojan horse detection methods, in particular to a hardware Trojan horse detection method based on weak identical paths. Background technique [0002] Integrated circuits (Integrated Circuits, IC), as the core of various electronic products in life, have been widely used in mobile communications, satellite communications, aerospace and other aspects. Producing a qualified chip generally requires four links: integrated circuit design, manufacturing, testing and packaging. Because the cost of completing each link is very expensive, and the technical system is very large and complex, each link is separated and carried out independently of each other. Therefore, the chips used by users are more likely to be implanted with Trojan horses by hardware hackers during the manufacturing process, which will lead to chip security issues. These security problems are mainly manifested as increasing c...

AI Technical Summary

Problems solved by technology

Due to the many circuit paths in the chip, implanting shadow registers or time-to-digital converters will significantly increase the chip area and power consumption

In addition, the side channel analysis technology needs to measure the delay information of the original circuit as a golden model. The process of establishing the golden model is very complicated, which increases the detection cost of hardware Trojan horses.

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