| 摘要 |
PROBLEM TO BE SOLVED: To provide an operating program capable of performing scalar multiplication or exponentiation at high speed even when scalar n or power n does not exceed order q of a finite field F<SB>q</SB>greatly. SOLUTION: The operating program for performing scalar multiplication is capable of speeding up scalar multiplication by applying at least t-1 expansion to n of the scalar n multiplication for a rational point Q. COPYRIGHT: (C)2010,JPO&INPIT
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