DPA方法对加密系统的FPGA旁路攻击研究

Study of Differential Power Analysis Attacks on FPGA Based Encrypted System

差分功率分析（DPA）方法可有效地对加密的集成电路芯片进行攻击解密,它绕过了加解密算法繁琐的数学分析,从而获取密码和信息.以DPA攻击嵌有DES算法的芯片为例,论述了搭建实验平台,获取功率消耗数据并用统计学和密码分析学的方法推导分析得出结论,从而成功破解加密系统.

The method of DPA may attack on encrypted FPGA effectively, which does not need complex analysis to encryption arithmetic and obtains ciphertext and information. The technique will play the important role in breaking the core of device - integration circuitry chip successfully. Taking DPA attack on chip with DES as example, the thesis discusses building experiment roof, obtaining power consume and educing conclusion by statistics and cryptanalysis, accordingly breaking encrypted system successfully.