The Vulnerability Analysis of Design-for-trust Technique and Its Defense

System-on-Chip (SoC) designers typically use third Party Intellectual Property(3PIP) cores to implement target functions. As these 3PIP cores are not trusted, the underlying SoC suffers from the threat of Hardware Trojans(HTs). As a subset of design-for-trust techniques, the diversified redundancy is promising in establishing trustworthy computings of SoCs. However, It is shown that the diversified redundancy can be defeated by HTs that explores triggering patterns. Therefore, an adapted diversified redundancy technique is proposed to defend against such kind of attacks.