static void Main(string[] args)
{
Write("Enter some text you want to encrypt and send somebody: ");
string message = ReadLine();
using (ECDiffieHellmanCng ecd = new ECDiffieHellmanCng())
{
ecd.KeyDerivationFunction = ECDiffieHellmanKeyDerivationFunction.Hash;
ecd.HashAlgorithm = CngAlgorithm.Sha256;
Person1PublicKey = ecd.PublicKey.ToByteArray();
Person2 person2 = new Person2();
CngKey k = CngKey.Import(person2.Person2PublicKey, CngKeyBlobFormat.EccPublicBlob);
byte[] senderKey = ecd.DeriveKeyMaterial(CngKey.Import(person2.Person2PublicKey, CngKeyBlobFormat.EccPublicBlob));
Send(senderKey, message, out byte[] encryptedMessage, out byte[] IV);
person2.Receive(encryptedMessage, IV);
}
}