椭圆曲线密码系统是最近十几年来获得迅速发展的一类密码系统.椭圆曲线的乘法的快速实现，是密码学中的重要内容，本程序实现椭圆曲线的快速乘法。-Elliptic Curve Cryptography is the last ten years to get the rapid development of a class of cryptosystems. Rapid multiplication of elliptic curves to achieve, is an important part

RSA编码实现，创建公钥和私钥，并判定生成的是否是素数，生成界面和菜单便于用户选择，用扩展欧几里得短发求乘法逆元，快速模幂算法，-RSA Coding, create public and private keys, and determine whether the resulting number is a prime generate user-friendly interface and menu choices, with short hair extensions Euclid se