发明授权
- 专利标题： Elliptic scalar multiplication system
- 专利标题（中）： 椭圆标量乘法系统
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申请号： US10196508申请日： 2002-07-17
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公开(公告)号： US07308096B2公开(公告)日： 2007-12-11
- 发明人: Katsuyuki Okeya , Shinichiro Harano
- 申请人： Katsuyuki Okeya , Shinichiro Harano
- 申请人地址： JP Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Mattingly, Stanger, Malur & Brundidge, P.C.
- 优先权： JP2000-160001 20000530; JP2001-286116 20010920
- 主分类号： H04L9/00
- IPC分类号： H04L9/00 ; H04K1/00
摘要：
In scalar multiplication method in which a point on an elliptic curve is randomized, but yet scalar multiplication can be calculated by the computational cost as much as that without randomization, an operation is carried out upon a point randomized and a point not randomized in a scalar multiplication method to calculate a scalar-multiplied point from a scalar value and a point on an elliptic curve. The result of the operation is randomized while the computational cost becomes as much as that without randomization.
公开/授权文献
- US20030059042A1 Elliptic scalar multiplication system 公开/授权日：2003-03-27
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