Design method and system for anti-hardware Trojan horse chip

Abstract

The embodiment of the invention discloses a design method and system for an anti-hardware Trojan horse chip. The method comprises the following steps of: acquiring the conversion probability of internal nodes of an integrated circuit; forming a first node set by internal nodes, the conversion probability of which is smaller than a predetermined conversion probability threshold value; acquiring the minimal signal probability from the first node set and forming a second node set by the internal nodes, the logic depths of which are the smallest; and selecting corresponding internal nodes according to the quantity of the internal nodes in the second node set, and inserting the internal nodes into an and logic gate or an or logic gate. After the selected corresponding internal nodes are inserted into the and logic gate or the or logic gate, the conversion probability of corresponding nodes is increased, and the corresponding conversion probability of the whole integrated circuit is also increased, so that when the hardware Trojan horse selects nodes to insert, the probability that the hardware Trojan is activated is increased, so that the hardware Trojan horse cannot find proper insertion points to be inserted into the integrated circuit, and therefore, the risk that the integrated circuit is attached by the hardware Trojan horse is reduced.

Description

technical field [0001] The present application relates to the technical field of chip design, in particular to an anti-hardware Trojan chip design method and system. Background technique [0002] Chip design generally includes two parts: integrated circuit design and circuit packaging. Generally, the integrated circuit design is completed through integrated circuit research and development according to product requirements, and then the designed integrated circuit is packaged to complete the chip design. 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 overall design and module design are independent of each other, as well as an industrial model in which design and production are separated. [0003] However, the above-mentioned design mode determines that there will be safety hazards in the ci...

AI Technical Summary

Problems solved by technology

[0004] This application provides an anti-hardware Trojan chip design method and system to solve the problem that the traditional chip design makes the chip vulnerable to hardware Trojan attacks

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