static void Main(string[] args)
{
// First create 2 vars of type RSAKey, one for public key and one for private key
RSAKey PU, PV;
// Generate the key pair
RSA.GenerateKeyPair(out PU, out PV);
// 64 bit key in hex format as a string
string key = "4D6251655468576D";
// p = plain text key in numeric form (must use BigInteger for large numbers)
// converting a hex string into numeric from but the key has to have a '0' in the MSB (start)
BigInteger p = BigInteger.Parse("0" + key, NumberStyles.AllowHexSpecifier);
// Encrypting the plain text with private key (encrypt function can take any key but the message M has to be a BigInteger)
BigInteger c = RSA.Encrypt(p, PV);
// Encrypt again with public key to decrypt the message
BigInteger m = RSA.Encrypt(c, PU);
Console.WriteLine("input: " + key);
Console.WriteLine("cypher: " + c.ToString("X"));
Console.WriteLine("output: " + m.ToString("X"));
Console.Read();
}
