Golden-Chip-Free Hardware Trojan Detection Through Thermal Radiation Comparison in Vulnerable Areas
Ting Su, Jiahe Shi, Yongkang Tang, Shaoqing Li · 2020
Hardware Trojan is increasingly becoming a major threat in the filed of hardware security. To solve that security threat, we propose a novel strategy for hardware Trojan detection combining trustworthy design with thermal radiation analysis. We use ring oscillators to fill the vulnerable area of target IC, and their layouts can serve as the trustworthy reference. Ring oscillator's thermal radiation is related to its stage, so that the location and stage of ring oscillators can be extracted from thermal maps by k-means clustering. Removing, breaking or degrading ring oscillators to insert a hardware Trojan can be detected by thermal radiation analysis. Therefore, our countermeasure can efficiently and conveniently detect the insertion of hardware Trojan without fabricated golden-chip. Experimental results on FPGA show that our countermeasure can accurately identify the thermal radiation change of ring oscillators and be used for hardware Trojan detection.