Designing and implementing hardware Trojans in ARM9 IP

Hardware security to ensure trust in ICs has emerged as important research topic in recent years; several Trojan detection approaches are developed to prevent Trojans damage, which making Trojan inserting more and more difficult. In this paper we design Trojans in a simple ARM9 IP, which formed by 3-stage pipeline. This is the first time insert Hardware Trojans into popular processor. Our simulation result show that, with a negligible area overhead, our proposed method can significantly influence performance even disable the processor.