椭圆曲线 diffie hellman 计算看起来与此处定义的标准曲线有什么不同:
/*
* The basic Diffie-Hellman Key Agreement Equation
*
* The client initiates
* A = g^a mod p
*
* Sends (g p A) to the server
*
* The server calculates B
* B = g^b mod p
*
* Sends B back to client
*
* The client calculates K
* K = B^a mod p
*
* The server calucaltes K
* K = A^b mod p
*
*/
还是只是选择 g、a、p 和 b 的特定方式?无论如何选择g,a,p和b?