Malicious Circuit Detection for Improved Hardware Security

Hardware Trojans have become a major threat faced by most of the VLSI fabrication houses. This paper proposes a non-destructive method for Hardware Trojan detection. Since in many cases the golden chip is unavailable and hence voting technique is adopted.This paper is an extension of the weighed voting. A microcontroller based portable standalone system that will identify any malicious activity in a circuit was designed and implemented. This standalone system performs the weighed voting to detect any malicious activity of the Circuit under Test implemented in FPGA. The working of this standalone system was tested and validated by using ISCAS ‘85 Benchmark circuits implemented in Spartan 6 XC6SLX16 FPGA. The accuracy was around 93.93 % while testing the system. A novel hardware based solution for hardware Trojan detection is attempted in this work.