说明：  主要针对现有的椭圆曲线密码体制密码域算数算法在实现上强度不易扩展的问题设计适用于不同椭圆曲线密码强度的域算术算法
(Mainly for the existing password Elliptic Curve Cryptography algorithm domain counts difficult to realize the intensity of the issue of expansion of the design applied to different intensity of Elliptic Curve Cryptography domain arithmetic algorithm)