介绍了差分功耗分析和相关性功耗分析两种方法及其分析流程。以DES算法为研究对象,在自主研发的功耗分析平台上,实现了差分功耗分析攻击和相关性功耗分析攻击。对实验结果的对比分析发现,差分功耗分析对设备噪声不敏感,具有通用分析的能力,而相关性功耗分析具有低样本量的分析能力,对加密设备的威胁更大,但对设备噪声比较敏感。将两者嵌入功耗分析自动检测平台,可发挥两种分析方法各自的优势,提高平台普适性和攻击效率。
Introduced the Differetial Power Analysis(DPA) and Correlation Power Analysis(CPA) methods and their analysis process. According to the DES cryptographic algorithm, realized the DPA attack and CPA attack in the inde- pendent researched and developed power analysis platform. The experiment results analysis shows that the two meth- ods have their own characteristics. DPA is insensitive to device noise with general analysis ability. CPA is a greater threat to the encryption device-with less power consumption but sensitive to device noise. By integrating the two methods in the power anlaysis platform, can greatly improve the attack efficiency and suitability.