Hardware trojan resistant integrated circuit design method and system

Abstract

The embodiment of the invention discloses a hardware trojan resistant integrated circuit design method and system. The hardware trojan resistant integrated circuit design method comprises the steps that internal nodes with integrated circuit conversion probability lower than a preset conversion probability threshold value form a first node set; the internal nodes having the lowest signal probability and smallest logic depth in the first node set are selected to form a second node set; according to the number of the internal nodes in the second node set, corresponding internal nods are selected to be inserted into a preset circuit, wherein the preset circuit comprises a one-from-two multiplexer and one scanning trigger; when the key path delay of an integrated circuit after preset circuit insertion is compared with the key path delay of an original integrated circuit, whether new internal nodes are needed for replacement and need to be inserted into the preset circuit or not is determined. After the corresponding internal nods are selected to be inserted into the preset circuit, the node conversion probability is improved, the activated probability is improved when hardware trojan selecting nodes are inserted, so that hardware trojans cannot find appropriate insertion nodes to be inserted into the integrated circuit, the risk that the integrated circuit is attached by hardware trojans is reduced.

Description

technical field [0001] The present application relates to the field of circuit design, in particular to a method and system for designing an anti-hardware Trojan integrated circuit. Background technique [0002] Integrated circuit design is to design a circuit that meets the user's needs through circuit research and development according to the user's needs. Generally, the designed circuit needs to be packaged to obtain the corresponding chip. With the development of IP multiplexing technology, many functional modules of integrated circuits may also be purchased directly by designers from third-party IP design companies, rather than completely designed by themselves. This kind of industrial model in which overall design and module design are independent of each other, and design and production are separated, determines that there will be safety hazards in the circuit design, manufacturing and use of chips. For example, during the design process, the IP provider may implant ...

AI Technical Summary

Problems solved by technology

[0004] This application provides an anti-hardware Trojan horse integrated circuit design method and system to solve the problem that integrated circuits designed by traditional methods are easily attacked by hardware Trojan horses

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