Testing vector generating method based on variation analysis for effectively activating hardware trojan horses

Abstract

The invention relates to the technical field of credibility of integrated circuits, and discloses a testing vector generating method for effectively activating hardware trojan horses. The method is high in purposiveness, low in testing cost, high in testing efficiency and capable of more effectively activating the hardware trojan horses and has certain actual meaning and reference value for manifesting the hardware trojan horses and analyzing bypass signals, and generated testing sequences are more simplified. In order to achieve the advantages above, according to the adopted technical scheme,the testing vector generating method based on the variation analysis for effectively activating the hardware trojan horses comprises the steps of analyzing the structural characters of a mother circuit, screening out nodes with low activity, utilizing a variation method to execute a variation operation on the circuit structure of the nodes with the low activity to generate high-level variants, and utilizing a functional testing method to screen out testing vectors capable of killing the variants. The method is mainly applied to the safety detection occasion of an integrated circuit.

Description

technical field [0001] The invention relates to the technical field of trustworthiness of integrated circuits, in particular to a method for generating test vectors for effective activation of hardware Trojan horses based on variation analysis. Background technique [0002] With the rapid development of deep submicron integrated circuit technology and computer-aided design technology, integrated circuits are widely used in the fields of finance, transportation, communication and national defense, and have gradually become an indispensable part of national life. In addition, with the deepening of the wave of economic globalization, semiconductor manufacturers have accelerated the time to market of integrated circuit chips in order to quickly occupy market share and increase revenue and profits. separate from manufacturing. Usually, the design and manufacturing process of an integrated circuit chip requires the joint cooperation of multiple units, some of which involve the as...

AI Technical Summary

Problems solved by technology

Small-area hardware Trojans are easily overwhelmed by process noise, and it is difficult for us to identify the characteristics of hardware Trojans from the bypass information submerged in noise. Process noise is the main bottleneck to further improve detection accuracy

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