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OALib Journal期刊
ISSN: 2333-9721
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椭圆曲线标量乘法中标量的有效表示
, PP. 135-140
Keywords: 椭圆曲线密码,标量乘法,标量表示,汉明重量
Abstract:
标量乘法是椭圆曲线密码(ecc)的基本运算,也是最耗时的运算,其运算效率直接决定着ecc的性能.在标量乘法运算中,标量k的表示起着至关重要的作用,其长度决定了所需倍点运算量,其汉明重量决定了所需点加运算量.本文提出了一种新的标量表示方法,与目前流行的方法相比,该表示方法具有编码方式简单,汉明重量轻等优点.使用新的标量表示方法,能有效提高ecc的实现效率,尤其对于{10}m及{10}m‖1型的标量,效率提高明显.
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