static void gen_keypair()
{
key = KeyGenerator.GenerateKey(polynomsCount * 16);
var byte_key = KeyGenerator.GenerateDoubleBytesKey(key);
var hexKey = KeyGenerator.GetHexKey(byte_key);
var key_variable = Encoding.ASCII.GetBytes(hexKey);
RsaKeyPairGenerator rsaKeyPairGnr = new RsaKeyPairGenerator();
rsaKeyPairGnr.Init(new Org.BouncyCastle.Crypto.KeyGenerationParameters(new SecureRandom(key_variable), 512));
Org.BouncyCastle.Crypto.AsymmetricCipherKeyPair keyPair = rsaKeyPairGnr.GenerateKeyPair();
P = (RsaKeyParameters)keyPair.Public;
S = (RsaKeyParameters)keyPair.Private;
print_key(hexKey);
}
public static void Main()
{
Console.WriteLine("1: Split\n2: Combine");
var choice = Console.ReadLine();
if (choice == "1")
{
Console.WriteLine("Players: ");
var playerStr = Console.ReadLine();
Console.WriteLine("Required: ");
var requiredStr = Console.ReadLine();
Console.WriteLine("Message:");
var message = Console.ReadLine();
var players = int.Parse(playerStr);
var required = int.Parse(requiredStr);
var polynomsCount = 3;
var byteKey = KeyGenerator.GenerateKey(polynomsCount * 16);
var key = KeyGenerator.GenerateDoubleBytesKey(byteKey);
var hexKey = KeyGenerator.GetHexKey(key);
var encrypted = Encryption.Encrypt(message, hexKey);
Console.WriteLine("\nEncrypted message:\n{0}", encrypted);
Console.WriteLine("\nShares: ");
var splitted = SharesManager.SplitKey(key, players, required);
for (var i = 0; i < splitted.Length; i++)
{
Console.WriteLine(splitted[i]);
}
Console.WriteLine();
}
else if (choice == "2")
{
Console.WriteLine("Encrypted message: ");
var message = Console.ReadLine();
Console.WriteLine("Number of shares: ");
var sharesCountStr = Console.ReadLine();
var sharesCount = int.Parse(sharesCountStr);
var shares = new string[sharesCount];
for (var i = 0; i < sharesCount; i++)
{
Console.WriteLine("Share {0}:", i + 1);
shares[i] = Console.ReadLine();
}
var generatedKey = SharesManager.CombineKey(shares);
var hexKey = KeyGenerator.GetHexKey(generatedKey);
var decrypted = Encryption.Decrypt(message, hexKey);
Console.WriteLine("\nDecrypted message:");
Console.WriteLine(decrypted);
Console.WriteLine();
}
var a = Console.ReadLine();
}
