如何在System.Numerics.BigInteger中向BigInteger类添加定义

问题描述

HI
我是c＃编码的新手。目前使用System.Numerics.BigInteger中的BigInteger类编码RSA-1024算法，现在我需要一个函数来生成随机素数。我正在使用visual studio 4.0。我有BigInteger类但没有生成素数的定义。我有一个函数定义，我需要的是在System.Numerics中添加到BigInteger类中



任何人都可以帮助这个

提前感谢

HIi am a newbee in coding with c#. presently coding RSA-1024 algorithm using BigInteger class from System.Numerics.BigInteger, where now i need a function to generate random prime numbers. i am using visual studio 4.0. i have the BigInteger class but no defintion for the generating prime. i have a function defintion for it, all i need is to add into that BigInteger class in System.Numerics

can anyone help with this
thanks in advance

推荐答案

using System.Numerics;

public static class Extensions
{
   public static int GenerateRandomPrimeNumber(this Biginteger bi)
   {
      // Your logic goes here
   }
}

用于：

For the usage:

Biginteger bi = BigInteger.Zero;
int myPrime = bi.GenerateRandomPrimeNumber();

警告：扩展方法适用于实例，这就是为什么我必须声明一个BigInteger变量才能访问GetRandomPrimeNumber（）扩展方法。如果您没有原始源代码并且可以重新编译，则无法在类本身上创建静态方法。

Warning: extension methods work on instances, that's why I had to declare a BigInteger variable to get access to the GetRandomPrimeNumber() extension method. You cannot create a static method on the class itself if you do not have the original source code and can recompile.

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