Method of Implanting Hardware Trojan Based on EHW in Part of Circuit

Abstract

In view of the fact that the traditional Hardware Trojan (HT) implanting method will increase the number of logic gates, and the power consumption changes obviously, this paper proposes a method of implanting HT in part of circuit by using evolvable hardware (EHW) technology. Firstly, the hierarchical clustering method is used to decompose the large-scale circuit, and then the EHW technology is used to redesign the decomposed sub circuit to make it have HT function. Finally, the original sub circuit is replaced by the evolved circuit, so as to achieve the effect of implanting hidden HT in part of circuit. The simulation results show that compared with the direct implantation method, the power change rate of the method is reduced by 35%, and the concealment is better.