Bitslice ciphers and power analysis attacks

摘要

In this paper, we present techniques to protect bitslice block ciphers against power analysis attacks. We analyze and extend a technique proposed in [12]. We apply the technique to BASEKING, a variant of 3-WAY[9] that was published in [7]. We introduce an alternative method to protect against power analysis specific for BASEKING. Finally, we discuss the applicability of the methods to the other known bitslice ciphers 3-WAY and Serpent [1].