%0 Journal Article %A TONG Lian %A QIAN Jiang %T Scalar multiplication algorithm against SPA and DPA attacks in ECC %D 2010 %R 10.3778/j.issn.1002-8331.2010.35.021 %J Computer Engineering and Applications %P 72-74 %V 46 %N 35 %X The efficiency and the security of scalar multiplication are the bottleneck problems of elliptic curve cryptosystem.Aimed at the scalar multiplication implementation in ECC,this paper researches on a scalar multiplication algorithm against the SPA and the DPA attacks,and proposes a new improved algorithm.Random variable is first introduced,scalar is encoded.It adopts a bottom layer fast algorithm and the sliding window algorithm,which takes improvements in efficiency and security.When sliding window length is 4,scalar quantity binary long for 160,192 and 224 bits,the improved efficiency of the algorithm are 26.9%,21.5% and 27.2%.
%U http://cea.ceaj.org/EN/10.3778/j.issn.1002-8331.2010.35.021