微控制器芯片所有活动都会在其旁路泄漏信号上留下“指纹”信息,将逆向工程思想与旁路攻击方法结合,对芯片旁路“指纹”信息进行分析,判断微控制器所执行的未知指令.针对微控制器(AT89C52)指令集构建对应不同指令的旁路模板库,对未知指令进行模板分析,通过实验验证了指令恢复的可行性,扩展了旁路攻击的研究领域. All activities of the microcontroller chip leave a “fingerprint” message on the bypass leak signal, combine the reverse engineering idea with the bypass attack method, analyze the chip bypass “fingerprint” information, and determine whether the micro-control Based on the instruction set of the microcontroller (AT89C52) to build a bypass template library corresponding to different instructions, template analysis of unknown instructions, the feasibility of instruction recovery verified by experiments, expanding the study of bypass attacks field.