Process type hardware Trojan horse monitoring method and device

Abstract

The invention provides a technology type hardware Trojan virus monitoring method and apparatus. The method includes thefollowing steps: determining key inner nodes in a to-be-tested chip and an electrical parameter reference value corresponding to each key inner node, on the basis of an external test enabling signal, determining the test sequence of the key inner nodes, successively acquiring the electrical parameter of the key inner nodes, comparing the acquired electrical parameters and the corresponding electrical parameter reference values, counting the times when the key inner nodes have electrical parameters deviated from corresponding electrical parameter reference values, if the counting is continuously greater than a threshold value, determining the presence of Trojan virus in the to-be-tested chip. In the whole process, on one hand, the key inner nodes are monitored at regular times and the acquired electrical parameters are compared with the corresponding electrical parameter reference values, such that the method takes the influence of technology interface sufficiently into consideration, and can efficiently and accurately monitor the technology type hardware Trojan virus.

Description

technical field [0001] The invention relates to the technical field of Trojan horse monitoring, in particular to a process type hardware Trojan horse monitoring method and device. Background technique [0002] In recent years, the security of integrated circuits has received more and more attention. Due to cost reasons, the vast majority of integrated circuit design companies do not have their own manufacturing process lines, but rely on professional chip manufacturing foundries for chip production. This separation of design and production has brought hidden dangers to the security of integrated circuits—hardware Trojan horses, which refer to some malicious circuit logic added to chips by opponents during the design or manufacture of integrated circuits. It will lead to a series of security issues that are not controlled by the user during the use of the chip. [0003] At present, a method based on bypass analysis is usually used to monitor hardware Trojans. However, this...

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Problems solved by technology

[0005] Based on this, it is necessary to address the problems of inaccurate monitoring results and low monitoring efficiency when the traditional hardware Trojan monitoring method is applied to technological hardware Trojan monitoring, and to provide a process-based hardware Trojan monitoring method with accurate monitoring results and high monitoring efficiency. device

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