Hardware trojan detection method independent of datum curve

Abstract

The invention provides a hardware trojan detection method independent of a datum curve. The hardware trojan detection method comprises the following steps: firstly, testing all original test vectors, and judging whether hardware Trojan exists in a chip according to the output result; secondly, modifying each original test vector, so that the same test input in each test vector repeatedly appears for a plurality of times; the test input appears at an interval of a certain period of time in each time, so that partial test codes in each modified test vector repeatedly appear in different time windows for a plurality of times; applying all modified test vectors to a circuit test, and recording corresponding circuit transient current curves of all modified test vectors in the testing process; finally finding out a curve section corresponding to the same test code from each modified test vector in different time windows, and comparing the curve sections. If the fitted circuit transient current curves corresponding to different time windows do not exceed a threshold value, and are not crossed, then the hardware trojan is not contained.

Description

technical field [0001] The invention relates to a hardware Trojan detection method that does not rely on a reference curve, especially a detection method that cannot be guaranteed to obtain a circuit that does not contain a hardware Trojan as a reference, and is especially suitable for detecting third-party imported chips . Background technique [0002] With the increasingly complex design of integrated circuits (IC, Integrated Circuit) and the increasing manufacturing costs, the design and manufacture of integrated circuits are moving towards the trend of global cooperation. Therefore, in the process of designing and manufacturing integrated circuits, more and more frequent It involves third-party IP (Intellectual Property Intellectual Property), Design Service (Design Service), EDA (Electronic Design Automation) tools and uncontrolled wafer manufacturing and packaging testing. In these links, chips are likely to be Man-made modifications, such as malicious addition, delet...

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Problems solved by technology

[0010] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a hardware Trojan detection method that does not rely on the reference curve, and can also effectively detect the hardware Trojan in the chip when it is impossible to obtain a chip that does not contain a hardware Trojan. detection

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