Novel Approach for Detection, Localization, and Mitigation of Malicious Node in NoC based SoC

Abstract

System-on-chip (SoC) uses Network-on-chip(NoC) concept to connect different components. With increasing applications of the Internet of things, chips have become more vulnerable due to the involvement of multiple third party vendor providing various Intellectual Property (IP) during manufacturing process. Hardware Trojan (HT) is one of the security vulnerabilities of the chip that makes the underlying NoC unsafe and degrades system performance. In the proposed work we model one of such HT attacks that create nuisance across NoC by its malicious behaviour. We propose an HT detection, localization, and shielding mechanism that safeguards the underlying interconnect, saves NoC resources from wasteful computation, and improve the overall system performance in terms of essential parameters. Re-routing after shielding is also proposed that nullifies the attacks impacts and helps a packet reaches to its destination with marginal increase in the hop count. The study takes both the delay of service and denial of service case scenario imposed by HT and empirical evaluation supports the claim by providing improved statistics.