Power Trace Analysis Attack and Countermeasures for RSA Cryptographic Circuits
Xiao Zeng · Chinese Journal of Computers · 2006
The first purpose of this paper is to present a new power analysis attack,total power trace analysis,which is a considerable menace to the unprotected RSA chip.And this attack can efficiently extract secret information from the patterns of the processed power signals.Several different version exponentiation algorithms of RSA cipher examined in the authors' research are all vulnerable to this type attack.The second purpose of this paper is to investigate the countermeasures against the power analysis attack mentioned above.The investigation done in this paper indicates that adding dummy operations into the cipher circuits can resist the attack,but result in higher power consumption and slower speed.And a new solution named as randomized dummy operations is proposed,which can also keep the security of the chip but with a lower power consumption level and faster speed.