In the implementation of elliptic curve cryptosystem, one of the key steps is to design and implement the base-point choice algorithm of elliptic curve finite group.
实现椭圆曲线密码体制还有一个关键的步骤，就是椭圆曲线有限群基点选取算法的设计与实现。
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Modular operation is a keyone that affects other operations directly in the public keycryptosystem.
在公钥密码体制中，模运算是直接影响其它运算的关键运算。
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Public keycryptosystem is one of the most important research subject in modern cryptography.