public static void Execute(BitcoinSecret privateKey)
{
// PRNG (Pseudo-Random-Number-Generator)
// add entropy to the PRNG output that NBitcoin is using
RandomUtils.AddEntropy("Hello");
RandomUtils.AddEntropy(new byte[] { 1, 2, 3 });
Key nsaProofKey = new Key();
// KDF (Key Derivation Function)
byte[] derived = SCrypt.BitcoinComputeDerivedKey("Hello", new byte[] { 1, 2, 3 });
RandomUtils.AddEntropy(derived);
string password = "******";
BitcoinEncryptedSecret encryptedBitcoinPrivateKey = privateKey.Encrypt(password);
BitcoinSecret decryptedBitcoinPrivateKey = encryptedBitcoinPrivateKey.GetSecret(password);
Console.WriteLine("-------------------Key Derivation Function------------------");
Console.WriteLine("BitcoinPrivateKey : " + privateKey);
Console.WriteLine("BitcoinPrivateKey(encrypted) : " + encryptedBitcoinPrivateKey);
Console.WriteLine("BitcoinPrivateKey(decrypted) : " + decryptedBitcoinPrivateKey);
// BIP38 (Part 2)
string mySecret = "Secret Phrase";
BitcoinPassphraseCode passphraseCode = new BitcoinPassphraseCode(mySecret, Network.Main, null);
EncryptedKeyResult encryptedKeyResult = passphraseCode.GenerateEncryptedSecret();
var generatedAddress = encryptedKeyResult.GeneratedAddress;
var encryptedKey = encryptedKeyResult.EncryptedKey;
var confirmationCode = encryptedKeyResult.ConfirmationCode;
var bitcoinPrivateKey = encryptedKey.GetSecret(mySecret);
Console.WriteLine("---------------------BIP38 (Part 2)---------------------");
Console.WriteLine("check generatedAddress: " + confirmationCode.Check(mySecret, generatedAddress)); // True
Console.WriteLine("check generatedAddress: " + (bitcoinPrivateKey.GetAddress() == generatedAddress)); // True
Console.WriteLine("bitcoinPrivateKey: " + bitcoinPrivateKey);
}
private void Code8()
{
var key = new Key();
BitcoinSecret wif = key.GetBitcoinSecret(Network.Main);
Console.WriteLine(wif);
BitcoinEncryptedSecret encrypted = wif.Encrypt("secret");
Console.WriteLine(encrypted);
wif = encrypted.GetSecret("secret");
Console.WriteLine(wif);
}
private static void Main(string[] args)
{
// Private keys are often represented in Base58Check called a Bitcoin Secret
// (also known as Wallet Import Format or simply WIF), like Bitcoin Addresses.
var privateKey = new Key();
/*
* Note:
* it is easy to go from BitcoinSecret to private Key, however
* it is impossible to go from a Bitcoin Address to Public Key
* because the Bitcoin Address contains a hash of the Public Key, not the Public Key itself.
*/
// pass in enum value: Main/TestNet, for use on respective networks
BitcoinSecret createdWithGetWif = privateKey.GetWif(Network.Main); // method has same body of .GetBitcoinSecret, returns same result
BitcoinSecret createdWithGetBitcoinSecret = privateKey.GetBitcoinSecret(Network.Main);
var wifIsBitcoinSecret = createdWithGetWif == createdWithGetBitcoinSecret;
Console.WriteLine(wifIsBitcoinSecret); // true
PubKey publicKey = privateKey.PubKey;
BitcoinPubKeyAddress bitcoinPubKey = publicKey.GetAddress(Network.Main);
Console.WriteLine(publicKey);
Console.WriteLine(bitcoinPubKey);
BitcoinEncryptedSecret encryptedBitcoinPrivateKey = createdWithGetWif.Encrypt("ilovecrypto");
Console.WriteLine(encryptedBitcoinPrivateKey);
BitcoinSecret secret = encryptedBitcoinPrivateKey.GetSecret("ilovecrypto");
Console.WriteLine(secret);
Console.WriteLine(secret == createdWithGetWif);
// keep the console open to read
Console.ReadLine();
}
private void buttonOk_Click(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(textBoxPassword.Text))
{
MessageBox.Show(this, "You must enter a password and a Bitcoin Secret or Encrypted Key.", "Knoledge-keychain", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
if (string.IsNullOrEmpty(textBoxEncrypted.Text) && string.IsNullOrEmpty(textBoxSecret.Text))
{
MessageBox.Show(this, "You must enter a Bitcoin Secret or Encrypted Key.", "Knoledge-keychain", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
if (string.IsNullOrEmpty(textBoxEncrypted.Text))
{
using (new HourGlass())
{
_result = Util.Interpret(textBoxSecret.Text);
}
if (_result == null || !(_result is BitcoinSecret))
{
MessageBox.Show(this, "Unrecognized or invalid key.", "Knoledge-keychain", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
using (new HourGlass())
{
try
{
BitcoinSecret secret = _result as BitcoinSecret;
BitcoinEncryptedSecret encrypted = secret.Encrypt(textBoxPassword.Text);
textBoxEncrypted.Text = encrypted.ToString();
}
catch (Exception ex)
{
MessageBox.Show(this, ex.Message, "Knoledge-keychain", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
else if (string.IsNullOrEmpty(textBoxSecret.Text))
{
using (new HourGlass())
{
_result = Util.Interpret(textBoxEncrypted.Text);
}
if (_result == null || !(_result is BitcoinEncryptedSecretNoEC))
{
MessageBox.Show(this, "Unrecognized or invalid key.", "Knoledge-keychain", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
using (new HourGlass())
{
try
{
BitcoinEncryptedSecretNoEC encEC = _result as BitcoinEncryptedSecretNoEC;
textBoxSecret.Text = encEC.GetKey(textBoxPassword.Text).GetBitcoinSecret(Network.TestNet).ToString();
}
catch (Exception ex)
{
MessageBox.Show(this, ex.Message, "Knoledge-keychain", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
}
public void TestAddressCreation()
{
Key privateKey; // = new Key();
privateKey = Key.Parse("L5e7GTVzDEFTS2YwRJcRse5LkgpAetKApCafc6avoKLovPcnFE74", Network.Main); // For getting the same outputs
PubKey publicKey = privateKey.PubKey;
BitcoinAddress addressLegacy = publicKey.GetAddress(ScriptPubKeyType.Legacy, Network.Main);
BitcoinAddress addressSegwit = publicKey.GetAddress(ScriptPubKeyType.Segwit, Network.Main);
BitcoinAddress addressSegwitP2SH = publicKey.GetAddress(ScriptPubKeyType.SegwitP2SH, Network.Main);
KeyId publicKeyHash = publicKey.Hash;
// Wif ->
// Priv. key -> Wif (Check README.md - Wif)
BitcoinSecret wif = privateKey.GetWif(Network.Main);
BitcoinSecret wif2 = new BitcoinSecret("L5e7GTVzDEFTS2YwRJcRse5LkgpAetKApCafc6avoKLovPcnFE74", Network.Main);
Assert.AreEqual(wif, wif2);
// Private key ->
// Wif -> Priv. key
Key privateKey1 = Key.Parse("L5e7GTVzDEFTS2YwRJcRse5LkgpAetKApCafc6avoKLovPcnFE74", Network.Main);
Assert.AreEqual(privateKey, privateKey1);
// Base58 encoded priv key
var privKeyVersionBytes = Network.Main.GetVersionBytes(Base58Type.SECRET_KEY, true);
byte[] privKeyWithVersionBytes = Helper.Concat(privKeyVersionBytes, privateKey.ToBytes());
var privKeyBase58 = Encoders.Base58Check.EncodeData(privKeyWithVersionBytes);
// Encrypted priv key (BIP38)
BitcoinEncryptedSecret encryptedPrivKey = wif.Encrypt("password");
// Decrypted priv key
BitcoinEncryptedSecret encryptedPrivKeyFromStr = BitcoinEncryptedSecret.Create("6PYWRpL1zPnz5kVxn74H9WdGJZVQ3ah6Pnq54GNinkfrXdd9fWNVS6dn95", Network.Main);
BitcoinSecret decryptedPrivKey = encryptedPrivKeyFromStr.GetSecret("password");
Assert.AreEqual(wif, decryptedPrivKey);
// Public key hash ->
// Check README (Hash160(Public Key))
var hash1 = NBitcoin.Crypto.Hashes.SHA256(publicKey.ToBytes());
var pkh = NBitcoin.Crypto.Hashes.RIPEMD160(hash1, hash1.Length); // SHA256(RIPEMD160(PUB_KUY))
var generatedPubKeyHash = new KeyId(pkh);
Assert.AreEqual(publicKeyHash, generatedPubKeyHash);
// Bitcoin Address >
var versionBytes = Network.Main.GetVersionBytes(Base58Type.PUBKEY_ADDRESS, true); // 0x00
byte[] PKHWithVersionBytes = Helper.Concat(versionBytes, pkh); // 0x00 + PKH
var address1 = Encoders.Base58Check.EncodeData(PKHWithVersionBytes);
Assert.AreEqual(addressLegacy.ToString(), address1); // 1Co3ZZ3U5ELVmZrV3oXk2qbv58AjuwRrnB
Console.WriteLine();
Console.WriteLine($"Pri : {privateKey.ToHex()} (Hex)"); // fb401b5261327d8543382c065af27e28a9775c278b7c3dba8cd0d88f0ad042b1
Console.WriteLine($"Pri : {privKeyBase58} (Base58)"); // 5KiwSFcZuAM3N5Ruf8cfiNzdCFupxFoFuqPafmK7JHqtsEms7HB
Console.WriteLine($"Pri : {encryptedPrivKey} (Encrypted)"); // 6PYWRpL1zPnz5kVxn74H9WdGJZVQ3ah6Pnq54GNinkfrXdd9fWNVS6dn95
Console.WriteLine($"Pri : {wif} (Wif)"); // L5e7GTVzDEFTS2YwRJcRse5LkgpAetKApCafc6avoKLovPcnFE74
Console.WriteLine($"Pub : {publicKey}"); // 03c092d451383dedd6052de6778f9b7c393252ecbd4cd05e842638a84a2c6e2528
Console.WriteLine($"Pub : {publicKey.Decompress()} (Decomp.)"); // 04c092d451383dedd6052de6778f9b7c393252ecbd4cd05e842638a84a2c6e2528fe41f265a1d8884eb304a33b6f8a6a245fab83f7bf503d7dfc532ffc6593df15
Console.WriteLine($"PKH : {publicKey.Hash}"); // 815ea7e8372ae215c40dc3d07a024adc7ddaf858
Console.WriteLine($"Add : {addressLegacy} (Legacy)"); // 1Co3ZZ3U5ELVmZrV3oXk2qbv58AjuwRrnB
Console.WriteLine($"Add : {addressSegwitP2SH} (SegwitP2SH)"); // 3JCvRhjrEyw9pvZiE3TxsdSHNPJQh1vHTe
Console.WriteLine($"Add : {addressSegwit} (Segwit)"); // bc1qs90206ph9t3pt3qdc0g85qj2m37a47zclpwws7
}
