static void Main(string[] args)
{
//Key Generation
const string privKeyHex = "E9873D79C6D87DC0FB6A5778633389F4453213303DA61F20BD67FC233AA33262";
BigInteger privateKey = Hex.HexToBigInteger(privKeyHex);
ECPoint publicKey = Secp256k1.G.Multiply(privateKey);
string bitcoinAddressUncompressed = publicKey.GetBitcoinAddress(compressed: false);
string bitcoinAddressCompressed = publicKey.GetBitcoinAddress(compressed: true);
Console.WriteLine("PrivateKey (Hex): {0}", privateKey.ToHex());
Console.WriteLine("Address (Uncompressed): {0}", bitcoinAddressUncompressed);
Console.WriteLine("Address ( Compressed): {0}", bitcoinAddressCompressed);
// encryption
ECEncryption encryption = new ECEncryption();
const string message = "This is my encrypted message";
byte[] encrypted = encryption.Encrypt(publicKey, message);
byte[] decrypted = encryption.Decrypt(privateKey, encrypted);
string decryptedMessage = Encoding.UTF8.GetString(decrypted);
// signing
MessageSignerVerifier messageSigner = new MessageSignerVerifier();
SignedMessage signedMessage = messageSigner.Sign(privateKey, "Test Message to sign, you can verify this on http://brainwallet.org/#verify");
bool verified = messageSigner.Verify(signedMessage);
Console.WriteLine("Press Any Key ...");
Console.ReadKey();
}
private static void Main(string[] args)
{
//Key Generation
const string privKeyHex = "E9873D79C6D87DC0FB6A5778633389F4453213303DA61F20BD67FC233AA33262";
BigInteger privateKey = Hex.HexToBigInteger(privKeyHex);
ECPoint publicKey = Secp256k1.G.Multiply(privateKey);
string bitcoinAddressUncompressed = publicKey.GetBitcoinAddress(false);
string bitcoinAddressCompressed = publicKey.GetBitcoinAddress(compressed: true);
Console.WriteLine("PrivateKey (Hex): {0}", privateKey.ToHex());
Console.WriteLine("Address (Uncompressed): {0}", bitcoinAddressUncompressed);
Console.WriteLine("Address (Compressed): {0}", bitcoinAddressCompressed);
uint value = 268435263;
var varInt = new VarInt(value); //create VarInt from Integer
Console.WriteLine("VarInt Internal Value: {0}", varInt.Value);
Console.WriteLine("VarInt (hex): 0x{0:X}", varInt.Value);
value = value ^ 2;
byte[] varIntBytes = VarInt.Encode(value);
Console.WriteLine("VarInt Static Encode & Decode test for value: {0}", value);
Console.WriteLine("VarInt Encoded (hex): {0}", varIntBytes.ToHex());
Console.WriteLine("Value Decoded: {0}", VarInt.Decode(varIntBytes));
// encryption
ECEncryption encryption = new ECEncryption();
const string message = "This is my encrypted message";
byte[] encrypted = encryption.Encrypt(publicKey, message);
byte[] decrypted = encryption.Decrypt(privateKey, encrypted);
string decryptedMessage = Encoding.UTF8.GetString(decrypted);
// signing
MessageSignerVerifier messageSigner = new MessageSignerVerifier();
SignedMessage signedMessage = messageSigner.Sign(privateKey, "Test Message to sign, you can verify this on http://brainwallet.org/#verify");
bool verified = messageSigner.Verify(signedMessage);
Console.WriteLine("Press Any Key ...");
Console.ReadKey();
}
public void TestEncryption(ElipticCurve curve, int iterations, Encoding enc)
{
ECKeysGenerator keyGen = new ECKeysGenerator(curve);
ECEncryption crypto = new ECEncryption(curve);
//generovanie klucoveho paru
byte[] privateKey;
byte[] publicKey;
for (int i = 0; i < iterations; i++)
{
Console.WriteLine($"encrtyption curve {curve.Name} test {i}... ");
keyGen.GenerateKeyPair(out privateKey, out publicKey);
string test = RandomString(random.Next(100));
byte[] cipher = crypto.Encrypt(test, publicKey, enc);
Console.WriteLine(Convert.ToBase64String(cipher));
string decoded = crypto.Decrypt(cipher, privateKey, enc);
if (test != decoded)
{
throw new Exception("Fatal Error");
}
Write("OK", ConsoleColor.Green);
}
}
