基于DCVSL的硬件木马检测

Hardware Trojan Detection Based on DCVSL

针对硬件木马检测问题,分析了DCVSL(差分串联电压开关逻辑)电路的特性,激活的硬件木马引起DCVSL的输入非互补,电路就会产生一个异常的短路电流.在此基础上提出了基于DCVSL结构的固有特性,利用电路平均短路电流旁路分析的硬件木马检测方法.通过HSIPCE蒙特卡罗分析仿真,以C432标准电路作为测试电路,植入一个微小的硬件木马,仍然检测出了电路中木马的存在,验证了方法的有效性.

Aimed at detecting hardware Trojans（HTs）,the characteristics of CMOS circuits are analyzed,noncomplementary inputs of DCVSL（Differential Cascade Voltage Switch Logic）caused by the active HT result in abnormal short-circuit current.A hardware Trojan detection method based on inherent feature of DCVSL and average dynamic circuit current is proposed.By HSPICE Mento carlo simulation circuit in which we use a C432 standard circuit with a small hardware Trojan as a test circuit,we detecte the existence of Trojan in the circuit,and verify the validity of the method.