public static RsaPublicKey FromHex(string hexString)
{
string[] properties = hexString.Split(new string[] { RsaPublicKey.propertySeparator }, StringSplitOptions.None);
return(new RsaPublicKey()
{
Exponent = he.DecodeData(properties[0]),
Modulus = he.DecodeData(properties[1])
});
}
)] // testcase generated by nsec build
public void ShouldDecryptSameDataInBothBuilds1(string hexKey, string hexPlainText, string nonceAndMacAndCipherText)
{
var hex = new NBitcoin.DataEncoders.HexEncoder();
var key = hex.DecodeData(hexKey);
var plainText = hex.DecodeData(hexPlainText);
var result = hex.DecodeData(nonceAndMacAndCipherText);
var c = new ChaCha20Poly1305CryptoAlgorithm();
var actualPlainText = c.Decrypt(key, result);
Assert.Equal(hex.EncodeData(plainText), hex.EncodeData(actualPlainText));
}
public static RsaPrivateKey FromHex(string hexString)
{
string[] properties = hexString.Split(new string[] { RsaPrivateKey.propertySeparator }, StringSplitOptions.None);
return(new RsaPrivateKey()
{
DP = he.DecodeData(properties[0]),
DQ = he.DecodeData(properties[1]),
Exponent = he.DecodeData(properties[2]),
Modulus = he.DecodeData(properties[3]),
P = he.DecodeData(properties[4]),
PublicExponent = he.DecodeData(properties[5]),
Q = he.DecodeData(properties[6]),
QInv = he.DecodeData(properties[7])
});
}
public void Fork_multisig_BTV()
{
string addr = "3CgCi4KGK4kx5dddLdQqKHN1nmACMKRrac";
string priv1 = "LnvAY6k625rPTDrB8jDajWgicFSPoBYZssxWyXucXw7HjvCS3XtA";
string priv2 = "Ln7dHCpAHCaJ4Y7DjamLH4B3MMozafH4Fa5U9xFsyHRXys1oV1UJ";
string rds = "5221023009742d61ebe747b295bab6a9268b9dcfbdfccdc0fcb747083068f4be57c6ef21039b1df4cbb3a9f77cc41f7cf807470498f5efd2b1ea46142d16b26fb5af7012e452ae";
Key a = Key.Parse(priv1);
Key b = Key.Parse(priv2);
Script redeemscript = PayToMultiSigTemplate
.Instance
.GenerateScriptPubKey(2, new[] { b.PubKey, a.PubKey });
var ad1 = a.PubKey.GetAddress(Network.Main).ToString();
var ad2 = b.PubKey.GetAddress(Network.Main).ToString();
// http://www.soroushjp.com/2014/12/20/bitcoin-multisig-the-hard-way-understanding-raw-multisignature-bitcoin-transactions/
//How many required (M of N)
//OpcodeType.OP_2
var h = new NBitcoin.DataEncoders.HexEncoder();
Script redeemscript_fb = new Script(h.DecodeData(rds));
string pubAddress = redeemscript.Hash.GetAddress(Network.Main).ToString();//.GetScriptAddress(Network.Main).ToString();
Console.WriteLine("Address: " + pubAddress);
Assert.AreEqual(addr, pubAddress);
//Add some bitcoin to the multisig address
var received = new Transaction();
received.Outputs.Add(new TxOut(Money.Coins(1.0m), redeemscript.Hash));
Coin coin = received.Outputs.AsCoins().First().ToScriptCoin(redeemscript);
//Create a transaction requiring two signatories
BitcoinAddress dest = new Key().PubKey.GetAddress(Network.Main);
TransactionBuilder builder = new TransactionBuilder();
Transaction utx =
builder
.AddCoins(coin)
.Send(dest, Money.Coins(0.9999m))
.SendFees(Money.Coins(0.0001m))
.SetChange(redeemscript.Hash)
.BuildTransaction(sign: false);
Console.WriteLine("Unsigned:");
Console.WriteLine(utx.ToHex());
Transaction sa =
builder
.AddCoins(coin)
.AddKeys(a)
.SignTransaction(utx, SigHash.ForkIdBTV, "BTV");
Console.WriteLine("sa:");
Console.WriteLine(sa.ToHex());
Transaction sb =
builder
.AddCoins(coin)
.AddKeys(b)
.SignTransaction(sa, SigHash.ForkIdBTV, "BTV");
Console.WriteLine("sb:");
Console.WriteLine(sb.ToHex());
Transaction stx = //sb;
builder
.AddCoins(coin)
.AddKeys(a)
.AddKeys(b)
.SignTransaction(utx, SigHash.ForkIdBTV, "BTV");
// builder
// .AddCoins(coin)
// .CombineSignatures("BTV", sa, sb);
Console.WriteLine("stx:");
Console.WriteLine(stx.ToHex());
var res = builder.Verify(stx, "BTV");
Assert.IsTrue(res);
}
public async Task <WalletUnsignedTransaction> CreateTransactionAsync(Dictionary <string, long> recepients, long?fee = null, long?feeRate = null, int feeTxConfirmTarget = 2, int minConfirms = 1, bool enforceMinConfirmsForChange = true, long minUnspentSize = 5460, bool?instant = null, CancellationToken cancellationToken = default(CancellationToken))
{
var hexEncoder = new NBitcoin.DataEncoders.HexEncoder();
var builder = new TransactionBuilder();
builder.DustPrevention = true;
var totalValue = recepients.Values.Sum();
var unspents = await GetUnspentListAsync(instant, totalValue, null, null, minUnspentSize, cancellationToken);
var changeAddress = await CreateAddressAsync(1, cancellationToken);
builder.SetChange(_client.Network.CreateBitcoinAddress(changeAddress.Address));
foreach (var unspent in unspents.Unspents)
{
builder.AddCoins(new ScriptCoin(new OutPoint(uint256.Parse(unspent.TransactionHash), unspent.TransactionOutputIndex), new TxOut(unspent.Value, new Script(hexEncoder.DecodeData(unspent.Script))), new Script(hexEncoder.DecodeData(unspent.RedeemScript))));
}
foreach (var recipient in recepients)
{
builder.Send(_client.Network.CreateBitcoinAddress(recipient.Key), recipient.Value);
}
var billingFee = await GetBillingFeeAsync(totalValue, instant ?? false, cancellationToken);
if (billingFee > 0)
{
var billingAddress = await _client.Billing.GetAddressAsync(cancellationToken);
billingFee = (long)Math.Min(billingFee, totalValue * 0.002);
builder.Send(_client.Network.CreateBitcoinAddress(billingAddress), billingFee);
}
long finnalFee = 0;
if (fee.HasValue)
{
builder.SendFees(fee.Value);
finnalFee = fee.Value;
}
else if (feeRate.HasValue)
{
var estimatedFeeRate = new FeeRate(feeRate.Value);
builder.SendEstimatedFees(estimatedFeeRate);
finnalFee = builder.EstimateFees(estimatedFeeRate).Satoshi;
}
else
{
var estimateFee = await _client.Transactions.EstimateFeesAsync(feeTxConfirmTarget, cancellationToken);
var estimatedFeeRate = new FeeRate(estimateFee.FeePerKb);
builder.SendEstimatedFees(estimatedFeeRate);
finnalFee = builder.EstimateFees(estimatedFeeRate).Satoshi;
}
var transactionHex = builder.BuildTransaction(false).ToHex();
return(new WalletUnsignedTransaction
{
WalletId = _id,
TransactionHex = transactionHex,
Fee = finnalFee,
ChangeAddress = new WalletUnsignedTransactionAddress {
Address = changeAddress.Address, Path = changeAddress.Path
},
WalletKeychains = (await GetAsync()).Keychains.Keychains.Select(k => new WalletUnsignedTransactionKeychain {
ExtendedPublicKey = k.ExtendedPublicKey, Path = k.Path
}).ToArray(),
Unspents = unspents.Unspents.Select(u => new WalletUnsignedTransactionUnspent {
RedeemScript = u.RedeemScript, Script = u.Script, ChainPath = u.ChainPath, TransactionHash = u.TransactionHash, TransactionOutputIndex = u.TransactionOutputIndex, Value = u.Value
}).ToArray()
});
}
public string SignTransaction(string transactionHex, WalletUnsignedTransactionUnspent[] unspents, Keychain userKeychain)
{
var hexEncoder = new NBitcoin.DataEncoders.HexEncoder();
var extKey = ExtKey.Parse(userKeychain.ExtendedPrivateKey);
var builder = new TransactionBuilder().ContinueToBuild(Transaction.Parse(transactionHex));
foreach (var unspent in unspents)
{
builder
.AddCoins(new ScriptCoin(new OutPoint(uint256.Parse(unspent.TransactionHash), unspent.TransactionOutputIndex), new TxOut(unspent.Value, new Script(hexEncoder.DecodeData(unspent.Script))), new Script(hexEncoder.DecodeData(unspent.RedeemScript))))
.AddKeys(extKey.Derive(KeyPath.Parse($"{userKeychain.Path}/0/0{unspent.ChainPath}")).PrivateKey);
}
return(builder.BuildTransaction(true).ToHex());
}