利用RSA现有模数和指数C#进行加密

using System;
using System.Security.Cryptography;

public class RSAEncryption
{
    public static void GenerateKeys(out string publicKey, out string privateKey)
    {
        using (var rsa = new RSACryptoServiceProvider())
        {
            publicKey = rsa.ToXmlString(false);
            privateKey = rsa.ToXmlString(true);
        }
    }
}

using System;
using System.Security.Cryptography;
using System.Text;

public class RSAEncryption
{
    public static string Encrypt(string publicKey, string data)
    {
        using (var rsa = new RSACryptoServiceProvider())
        {
            rsa.FromXmlString(publicKey);
            byte[] encryptedData = rsa.Encrypt(Encoding.UTF8.GetBytes(data), true);
            return Convert.ToBase64String(encryptedData);
        }
    }
}

using System;
using System.Security.Cryptography;
using System.Text;

public class RSAEncryption
{
    public static string Decrypt(string privateKey, string encryptedData)
    {
        using (var rsa = new RSACryptoServiceProvider())
        {
            rsa.FromXmlString(privateKey);
            byte[] decryptedData = rsa.Decrypt(Convert.FromBase64String(encryptedData), true);
            return Encoding.UTF8.GetString(decryptedData);
        }
    }
}