Differential Power Spectral Density Analysis Attacks for Symmetric Encrypted Systems
Gaoming Deng · Jisuanji gongcheng · 2008
Differential Power Spectral Density Analysis(DPSDA) is a new kind of side channel attacks(SCA) approach.This paper explains data-power correlation of CMOS logic gates in the Integrated Circuits(ICs),introduces Differential Power Analysis(DPA) and Differential Power Spectral Density Analysis(DPSDA).Instead of computing the differential signals in the time domain,DPSDA is performed in the frequency domain by calculating the differential power spectral density signal.For the embedded DES encrypted systems with random delay,DPSDA can find 48-bit key of the round 1 of DES,but DPA can not.