A novel hardware Trojan design based on one-hot code

Hardware Trojan research has become an important research topic in recent time since the increased awareness of hardware security. In this work, we designed a novel counter-type Hardware Trojan based on One-hot code, which has better performance than classic solutions. By improvement in this work, the dynamic power consumption of counter Trojan has reached a decrease of 25%. At the same time, power consumption peak caused by flipping like 0111111→1000000 under binary encoding was avoided. The performance of designed Trojan has been fully tested in the software-hardware co-verification environment, which shows that Trojan implantation did not influence the proper work of background circuit, only did some tricks in the way we need; and the Trojan latent period is controllable by connecting Trojan circuit to different trigger nodes.