Hardware Trojan defense method and device based on fully homomorphic encryption algorithm

Abstract

The invention discloses a hardware Trojan defense method and device based on a fully homomorphic encryption algorithm. The method is characterized by comprising the following steps: encrypting plaintext data by use of a public key generated by the fully homomorphic encryption algorithm to produce initial ciphertext data; computing the initial ciphertext data by use of a ciphertext computing public key generated by the fully homomorphic encryption algorithm to obtain the final ciphertext data; and decrypting the final ciphertext data by use of a private key generated by the fully homomorphic encryption algorithm to obtain the final plaintext data. Through the adoption of the method disclosed by the invention, the hardware Trojan can be prevented from being implanted into an integrated circuit from the source; the technical scheme disclosed by the invention can be applied to the entire integrated circuit, the hardware Trojan cannot be implanted into any part of the integrated part, and the security is greatly improved.

Description

technical field [0001] The present invention relates to the field of computer security, in particular to a defense method for an integrated circuit hardware Trojan horse, specifically a hardware Trojan horse defense method and device based on a fully homomorphic encryption algorithm. Background technique [0002] With the rapid development of information technology, various smart products and equipment are increasingly dependent on integrated circuits. However, with the continuous improvement of integrated circuit functions and process complexity, the entire process from design to delivery of integrated circuits requires the cooperation of multiple parties. However, this multi-party integrated circuit development model gives attackers the opportunity to access the original design and Carry out some malicious modifications, and this malicious modification to the original hardware design is called a hardware Trojan horse. At present, there have been various examples of hardwa...

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Problems solved by technology

[0006] In view of this, the technical problem to be solved by the present invention is to provide a hardware Trojan horse defense method and device based on a fully homomorphic encryption algorithm, which solves the problem that the prior art cannot prevent Trojan horse implantation on the entire integrated circuit

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