发明公开
- 专利标题： METHODS AND APPARATUS FOR PERFORMING AN ELLIPTIC CURVE SCALAR MULTIPLICATION OPERATION USING SPLITTING
- 专利标题（中）： 方法和装置用于进行标量乘法按司椭圆曲线上
-
申请号： EP08733548.5申请日： 2008-03-06
-
公开(公告)号： EP2119100A1公开(公告)日： 2009-11-18
- 发明人: EBEID, Nevine Maurice Nassif
- 申请人： Research in Motion Limited
- 申请人地址： 295 Phillip Street Waterloo, ON N2L 3W8 CA
- 专利权人： Research in Motion Limited
- 当前专利权人： Research in Motion Limited
- 当前专利权人地址： 295 Phillip Street Waterloo, ON N2L 3W8 CA
- 代理机构： Patel, Binesh
- 优先权： US893297P 20070306; US40004 20080229
- 国际公布： WO2008106792 20080912
- 主分类号： H04L9/30
- IPC分类号： H04L9/30 ; H04L9/28
摘要：
For an Elliptic Curve Scalar Multiplication (ECSM) operation to be performed on a scalar and a base point, a given previous set of parameters that was used to split the scalar for a previous ECSM operation and a selected random integer are used to determine a new set of parameters for splitting the scalar. By basing the new set of parameters on the previous set of parameters, repeated use of the scalar to determine key-splitting parameters is avoided and susceptibility to a Differential Power Analysis Side Channel attack is minimized.
公开/授权文献
信息查询
