private CommitmentTransactionParameters CreateRemoteCommitmentTxParameters(OpenChannelMessage openMessage, AcceptChannelMessage acceptMessage)
{
PublicKeyDerivation publicKeyDerivation = new PublicKeyDerivation(acceptMessage.FirstPerCommitmentPoint);
RevocationPublicKeyDerivation revocationPublicKeyDerivation = new RevocationPublicKeyDerivation(acceptMessage.FirstPerCommitmentPoint);
PublicKeyDerivation remotePublicKeyDerivation = new PublicKeyDerivation(openMessage.FirstPerCommitmentPoint);
CommitmentTransactionParameters parameters = new CommitmentTransactionParameters
{
TransactionNumber = 0,
HtlcBasepoint = acceptMessage.HtlcBasepoint,
HtlcPublicKey = remotePublicKeyDerivation.Derive(acceptMessage.HtlcBasepoint),
PaymentBasepoint = acceptMessage.PaymentBasepoint,
PaymentPublicKey = remotePublicKeyDerivation.Derive(acceptMessage.PaymentBasepoint),
DelayedPaymentBasepoint = acceptMessage.DelayedPaymentBasepoint,
DelayedPaymentPublicKey = publicKeyDerivation.Derive(acceptMessage.DelayedPaymentBasepoint),
RevocationBasepoint = acceptMessage.RevocationBasepoint,
RevocationPublicKey = revocationPublicKeyDerivation.DerivePublicKey(openMessage.RevocationBasepoint),
PerCommitmentKey = acceptMessage.FirstPerCommitmentPoint,
FundingKey = acceptMessage.FundingPubKey,
ToRemoteMsat = openMessage.FundingSatoshis * 1000 - openMessage.PushMSat,
ToLocalMsat = openMessage.PushMSat
};
return(parameters);
}
public PendingChannel(IPeer peer, OpenChannelMessage openMessage, ECKeyPair revocationKey,
uint channelIndex)
{
Peer = peer;
OpenMessage = openMessage;
RevocationKey = revocationKey;
ChannelIndex = channelIndex;
TemporaryChannelId = openMessage.TemporaryChannelId.ToHex();
}
public static ChannelParameters CreateFromOpenMessage(OpenChannelMessage openMessage)
{
ChannelParameters channelParameters = new ChannelParameters();
channelParameters.DustLimitSatoshis = openMessage.DustLimitSatoshis;
channelParameters.MaxHtlcValueInFlightMSat = openMessage.MaxHtlcValueInFlightMSat;
channelParameters.ChannelReserveSatoshis = openMessage.ChannelReserveSatoshis;
channelParameters.ToSelfDelay = openMessage.ToSelfDelay;
channelParameters.HtlcMinimumMSat = openMessage.HtlcMinimumMSat;
channelParameters.MaxAcceptedHtlcs = openMessage.MaxAcceptedHtlcs;
channelParameters.ShutdownScriptPubKey = openMessage.ShutdownScriptPubKey;
return(channelParameters);
}
public void HandleInvalidRemoteSignatureTest()
{
var mocks = new ChannelEstablishmentMocks();
var revocationKey = new ECKeyPair("DD06232AE9A50384A72D85CED6351DCB35C798231D4985615C77D6847F83FC65", true);
var handler = new FundingMessageSignedHandler(mocks.ChannelLoggingService.Object, mocks.FundingService.Object,
mocks.CommTxService.Object, mocks.ChannelService.Object, mocks.BlockchainMonitorService.Object);
OpenChannelMessage openChannelMessage = new OpenChannelMessage()
{
ChainHash = NetworkParameters.BitcoinTestnet.ChainHash,
TemporaryChannelId = "43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea3309000000".HexToByteArray(),
FundingSatoshis = 420000,
PushMSat = 1000,
DustLimitSatoshis = 500,
MaxHtlcValueInFlightMSat = 50000,
ChannelReserveSatoshis = 5000,
HtlcMinimumMSat = 1100,
FeeratePerKw = 150,
ToSelfDelay = 133,
MaxAcceptedHtlcs = 156,
FundingPubKey = new ECKeyPair("0250d049da6b5832a9f2416df3b0db52da127426c2b70a35ca9c270a72f3f840b5", false),
RevocationBasepoint = new ECKeyPair("022ecc432552ff86d053514ffb133d3025fb14c39aa5ae2a5169b0367174cabfa4", false),
PaymentBasepoint = new ECKeyPair("029d100efe40aa3f58985fa12bd0f5c75711449ff4d30adca6f1968a2200bbbf1a", false),
DelayedPaymentBasepoint = new ECKeyPair("0250d049da6b5832a9f2416df3b0db52da127426c2b70a35ca9c270a72f3f840b5", false),
HtlcBasepoint = new ECKeyPair("03d029229db8f594adcd545b4a42acbb1013286908d2905fa05c9a4e2083fe3fe2", false),
FirstPerCommitmentPoint = new ECKeyPair("02846726efa57378ad8370acf094f26902a7f1e21903791ef4ab6f989da86679f2", false),
ChannelFlags = 1
};
var signature = "2f26e967305b4d422116a7c876d338bc4298263f329a54c0d1655f55d594de4955356386addd0bc15ced36dacece0af439694195654c838769583409eeac5d3f".HexToByteArray();
FundingSignedMessage fundingSignedMessage = new FundingSignedMessage()
{
ChannelId = "43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea3309000000".HexToByteArray(),
Signature = signature
};
PendingChannel pendingChannel = new PendingChannel(mocks.Peer.Object, openChannelMessage, revocationKey, 0);
pendingChannel.Channel = mocks.CreateChannelMock();
pendingChannel.Channel.LocalCommitmentTxParameters = new CommitmentTransactionParameters();
mocks.CommTxService.Setup(c => c.IsValidRemoteCommitmentSignature(pendingChannel.Channel, It.IsAny <TransactionSignature>())).Returns(false);
mocks.Peer.Setup(m => m.Messaging).Returns(new Mock <IMessagingClient>().Object);
Assert.Throws <ChannelException>(() =>
handler.Handle(mocks.Peer.Object, fundingSignedMessage, pendingChannel));
}
private LocalChannel CreateChannel(uint index, FundingTransaction fundingTx, OpenChannelMessage openMessage, AcceptChannelMessage acceptMessage)
{
LocalChannel channel = new LocalChannel();
channel.ChannelIndex = index;
channel.TemporaryChannelId = openMessage.TemporaryChannelId.ToHex();
channel.LocalChannelParameters = ChannelParameters.CreateFromOpenMessage(openMessage);
channel.RemoteChannelParameters = ChannelParameters.CreateFromAcceptMessage(acceptMessage);
channel.FundingSatoshis = openMessage.FundingSatoshis;
channel.PushMSat = openMessage.PushMSat;
channel.MinimumDepth = acceptMessage.MinimumDepth;
channel.FundingTransactionId = fundingTx.Transaction.GetHash().ToString();
channel.FundingOutputIndex = fundingTx.FundingOutputIndex;
channel.ChannelId = LocalChannel.DeriveChannelId(fundingTx.Transaction, fundingTx.FundingOutputIndex);
channel.FeeRatePerKw = openMessage.FeeratePerKw;
return(channel);
}
public OpenChannelAckMessage AckOpenChannel(OpenChannelMessage openMsg,
Key payeeKey)
{
if(payeeKey.PubKey != Arguments.Payee.PaymentPubKey)
throw new ArgumentException("Invalid payeeKey", "payeeKey");
Arguments.Assert(openMsg.UnsignedRefund, true, Arguments.Fees);
var fundCoin = new Coin(openMsg.UnsignedRefund.Inputs[0].PrevOut, new TxOut(Arguments.Amount + Arguments.Fees, Arguments.Redeem.Hash)).ToScriptCoin(Arguments.Redeem);
var signed =
new TransactionBuilder()
.AddCoins(fundCoin)
.AddKeys(payeeKey)
.SignTransaction(openMsg.UnsignedRefund);
Refund = signed;
return new OpenChannelAckMessage()
{
SignedRefund = signed
};
}
private bool VerifyOpenMessage(OpenChannelMessage message)
{
Assert.Equal(0, message.ChannelFlags);
Assert.Equal((ulong)42000, message.FundingSatoshis);
Assert.Equal((ulong)4200, message.ChannelReserveSatoshis);
Assert.Equal((ulong)546, message.DustLimitSatoshis);
Assert.Equal((ulong)253, message.FeeratePerKw);
Assert.Equal((ulong)483, message.MaxAcceptedHtlcs);
Assert.Equal((ulong)100, message.PushMSat);
Assert.Equal((ulong)144, message.ToSelfDelay);
Assert.Equal((ulong)1000, message.HtlcMinimumMSat);
Assert.Equal((ulong)5000000000, message.MaxHtlcValueInFlightMSat);
Assert.Equal("43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea330900000000".HexToByteArray(), message.ChainHash);
Assert.Equal("029d100efe40aa3f58985fa12bd0f5c75711449ff4d30adca6f1968a2200bbbf1a", message.HtlcBasepoint.PublicKeyCompressed.ToHex());
Assert.Equal("022b2aa486f5a8aca1898824ac3b2a8a15c92de813362846b992f94d923b143f92", message.PaymentBasepoint.PublicKeyCompressed.ToHex());
Assert.Equal("02d91224d91760f477df21d24713b713c681b084e508f48dc77ca14db549ba8ceb", message.RevocationBasepoint.PublicKeyCompressed.ToHex());
Assert.Equal("0250d049da6b5832a9f2416df3b0db52da127426c2b70a35ca9c270a72f3f840b5", message.DelayedPaymentBasepoint.PublicKeyCompressed.ToHex());
Assert.Equal("0245b02f6672c2342fe3ced57118fcf4a0309327e32c335ce494365eb0d15b7200", message.FundingPubKey.PublicKeyCompressed.ToHex());
Assert.Equal("022b2aa486f5a8aca1898824ac3b2a8a15c92de813362846b992f94d923b143f92", message.FirstPerCommitmentPoint.PublicKeyCompressed.ToHex());
Assert.Equal("76a914f75d1c854c52abee075916b41cf0ca76fa515b4c88ac", message.ShutdownScriptPubKey.ToHex());
return(true);
}
public void CreateInitialCommitmentTransactions(OpenChannelMessage openMessage, AcceptChannelMessage acceptMessage, LocalChannel channel, ECKeyPair revocationKey)
{
channel.LocalCommitmentTxParameters = CreateLocalCommitmentTxParameters(openMessage, acceptMessage, revocationKey);
channel.RemoteCommitmentTxParameters = CreateRemoteCommitmentTxParameters(openMessage, acceptMessage);
SignRemoteCommitmentTx(channel);
}
public void HandleTest()
{
var mocks = new ChannelEstablishmentMocks();
var revocationKey = new ECKeyPair("DD06232AE9A50384A72D85CED6351DCB35C798231D4985615C77D6847F83FC65", true);
var handler = new AcceptChannelMessageHandler(mocks.ChannelLoggingService.Object, mocks.FundingService.Object, mocks.CommTxService.Object);
var localSig = "3045022100a5c01383d3ec646d97e40f44318d49def817fcd61a0ef18008a665b3e151785502203e648efddd5838981ef55ec954be69c4a652d021e6081a100d034de366815e9b".HexToByteArray();
OpenChannelMessage openChannelMessage = new OpenChannelMessage()
{
ChainHash = NetworkParameters.BitcoinTestnet.ChainHash,
TemporaryChannelId = "43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea3309000000".HexToByteArray(),
FundingSatoshis = 420000,
PushMSat = 1000,
DustLimitSatoshis = 500,
MaxHtlcValueInFlightMSat = 50000,
ChannelReserveSatoshis = 5000,
HtlcMinimumMSat = 1100,
FeeratePerKw = 150,
ToSelfDelay = 133,
MaxAcceptedHtlcs = 156,
FundingPubKey = new ECKeyPair("0245b02f6672c2342fe3ced57118fcf4a0309327e32c335ce494365eb0d15b7200", false),
RevocationBasepoint = new ECKeyPair("02d91224d91760f477df21d24713b713c681b084e508f48dc77ca14db549ba8ceb", false),
PaymentBasepoint = new ECKeyPair("022b2aa486f5a8aca1898824ac3b2a8a15c92de813362846b992f94d923b143f92", false),
DelayedPaymentBasepoint = new ECKeyPair("0250d049da6b5832a9f2416df3b0db52da127426c2b70a35ca9c270a72f3f840b5", false),
HtlcBasepoint = new ECKeyPair("029d100efe40aa3f58985fa12bd0f5c75711449ff4d30adca6f1968a2200bbbf1a", false),
FirstPerCommitmentPoint = new ECKeyPair("022b2aa486f5a8aca1898824ac3b2a8a15c92de813362846b992f94d923b143f92", false),
ChannelFlags = 1
};
AcceptChannelMessage acceptChannelMessage = new AcceptChannelMessage()
{
TemporaryChannelId = "43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea3309000000".HexToByteArray(),
DustLimitSatoshis = 500,
MaxHtlcValueInFlightMSat = 50000,
ChannelReserveSatoshis = 5000,
HtlcMinimumMSat = 1100,
ToSelfDelay = 133,
MaxAcceptedHtlcs = 156,
FundingPubKey = new ECKeyPair("0299de4bbf495e5bbeb2456c2beb3f40450a3fa41aaa50819ae201f8ad69226bfe", false),
RevocationBasepoint = new ECKeyPair("022b2aa486f5a8aca1898824ac3b2a8a15c92de813362846b992f94d923b143f92", false),
PaymentBasepoint = new ECKeyPair("02d91224d91760f477df21d24713b713c681b084e508f48dc77ca14db549ba8ceb", false),
DelayedPaymentBasepoint = new ECKeyPair("0341665cedb568e09f0ab2ab4a28bc2749620deacefb3dce61aac8251c91709d3a", false),
HtlcBasepoint = new ECKeyPair("0336439e36e2bc1f264c6d3bc6e12db6256389bef2056c32e6267d6e285c2b2122", false),
FirstPerCommitmentPoint = new ECKeyPair("039360132ab07e7f56d6782a644233da9c4c24845609fcd302cbedd69f69848358", false)
};
PendingChannel pendingChannel = new PendingChannel(mocks.Peer.Object, openChannelMessage, revocationKey, 0);
FundingTransaction fundingTransactionMock = mocks.CreateFundingTxMock(openChannelMessage.FundingPubKey, acceptChannelMessage.FundingPubKey);
mocks.FundingService.Setup(f => f.CreateFundingTransaction(openChannelMessage.FundingSatoshis,
openChannelMessage.FeeratePerKw, openChannelMessage.FundingPubKey, acceptChannelMessage.FundingPubKey))
.Returns(fundingTransactionMock);
mocks.CommTxService.Setup(f => f.CreateInitialCommitmentTransactions(openChannelMessage, acceptChannelMessage, It.IsAny <LocalChannel>(), revocationKey))
.Callback <OpenChannelMessage, AcceptChannelMessage, LocalChannel, ECKeyPair>((openMessage, acceptMessage, channel, rkey) =>
{
channel.RemoteCommitmentTxParameters = new CommitmentTransactionParameters();
channel.RemoteCommitmentTxParameters.LocalSignature = new TransactionSignature(localSig, SigHash.All);
});
FundingCreatedMessage fundingCreatedMessage = handler.Handle(acceptChannelMessage, pendingChannel);
Assert.Equal("15fadebd5a68d2d9f216a2dc5531c4dbc977eac0c42ab97899e21d549dddbefa", fundingCreatedMessage.FundingTransactionId.ToHex());
Assert.Equal(new TransactionSignature(localSig, SigHash.All).ToRawSignature().ToHex(), fundingCreatedMessage.Signature.ToHex());
Assert.Equal(0, fundingCreatedMessage.FundingOutputIndex);
Assert.Equal("43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea3309000000", fundingCreatedMessage.TemporaryChannelId.ToHex());
}
public void HandleTest()
{
var mocks = new ChannelEstablishmentMocks();
var revocationKey = new ECKeyPair("DD06232AE9A50384A72D85CED6351DCB35C798231D4985615C77D6847F83FC65", true);
var handler = new FundingMessageSignedHandler(mocks.ChannelLoggingService.Object, mocks.FundingService.Object,
mocks.CommTxService.Object, mocks.ChannelService.Object, mocks.BlockchainMonitorService.Object);
OpenChannelMessage openChannelMessage = new OpenChannelMessage()
{
ChainHash = NetworkParameters.BitcoinTestnet.ChainHash,
TemporaryChannelId = "43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea3309000000".HexToByteArray(),
FundingSatoshis = 420000,
PushMSat = 1000,
DustLimitSatoshis = 500,
MaxHtlcValueInFlightMSat = 50000,
ChannelReserveSatoshis = 5000,
HtlcMinimumMSat = 1100,
FeeratePerKw = 150,
ToSelfDelay = 133,
MaxAcceptedHtlcs = 156,
FundingPubKey = new ECKeyPair("0250d049da6b5832a9f2416df3b0db52da127426c2b70a35ca9c270a72f3f840b5", false),
RevocationBasepoint = new ECKeyPair("022ecc432552ff86d053514ffb133d3025fb14c39aa5ae2a5169b0367174cabfa4", false),
PaymentBasepoint = new ECKeyPair("029d100efe40aa3f58985fa12bd0f5c75711449ff4d30adca6f1968a2200bbbf1a", false),
DelayedPaymentBasepoint = new ECKeyPair("0250d049da6b5832a9f2416df3b0db52da127426c2b70a35ca9c270a72f3f840b5", false),
HtlcBasepoint = new ECKeyPair("03d029229db8f594adcd545b4a42acbb1013286908d2905fa05c9a4e2083fe3fe2", false),
FirstPerCommitmentPoint = new ECKeyPair("02846726efa57378ad8370acf094f26902a7f1e21903791ef4ab6f989da86679f2", false),
ChannelFlags = 1
};
// AcceptChannelMessage acceptChannelMessage = new AcceptChannelMessage()
// {
// TemporaryChannelId = "43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea3309000000".HexToByteArray(),
// DustLimitSatoshis = 500,
// MaxHtlcValueInFlightMSat = 50000,
// ChannelReserveSatoshis = 5000,
// HtlcMinimumMSat = 1100,
// ToSelfDelay = 133,
// MaxAcceptedHtlcs = 156,
// FundingPubKey = new ECKeyPair("0299de4bbf495e5bbeb2456c2beb3f40450a3fa41aaa50819ae201f8ad69226bfe", false),
// RevocationBasepoint = new ECKeyPair("022b2aa486f5a8aca1898824ac3b2a8a15c92de813362846b992f94d923b143f92", false),
// PaymentBasepoint = new ECKeyPair("02d91224d91760f477df21d24713b713c681b084e508f48dc77ca14db549ba8ceb", false),
// DelayedPaymentBasepoint = new ECKeyPair("0341665cedb568e09f0ab2ab4a28bc2749620deacefb3dce61aac8251c91709d3a", false),
// HtlcBasepoint = new ECKeyPair("0336439e36e2bc1f264c6d3bc6e12db6256389bef2056c32e6267d6e285c2b2122", false),
// FirstPerCommitmentPoint = new ECKeyPair("039360132ab07e7f56d6782a644233da9c4c24845609fcd302cbedd69f69848358", false)
// };
var signature = "2f26e967305b4d422116a7c876d338bc4298263f329a54c0d1655f55d594de4955356386addd0bc15ced36dacece0af439694195654c838769583409eeac5d3f".HexToByteArray();
FundingSignedMessage fundingSignedMessage = new FundingSignedMessage()
{
ChannelId = "43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea3309000000".HexToByteArray(),
Signature = signature
};
PendingChannel pendingChannel = new PendingChannel(mocks.Peer.Object, openChannelMessage, revocationKey, 0);
pendingChannel.Channel = mocks.CreateChannelMock();
pendingChannel.Channel.LocalCommitmentTxParameters = new CommitmentTransactionParameters();
pendingChannel.Channel.FundingTransactionId = "txId";
mocks.CommTxService.Setup(c => c.IsValidRemoteCommitmentSignature(pendingChannel.Channel, It.IsAny <TransactionSignature>())).Returns(true);
handler.Handle(mocks.Peer.Object, fundingSignedMessage, pendingChannel);
Assert.Equal(LocalChannelState.FundingSigned, pendingChannel.Channel.State);
Assert.Equal(signature, pendingChannel.Channel.LocalCommitmentTxParameters.RemoteSignature.ToRawSignature());
mocks.FundingService.Verify(f => f.BroadcastFundingTransaction(pendingChannel.Channel), Times.Once);
mocks.BlockchainMonitorService.Verify(m => m.WatchForTransactionId(pendingChannel.Channel.FundingTransactionId, 3), Times.Once);
mocks.ChannelService.Verify(c => c.RemovePendingChannel(pendingChannel), Times.Once);
}
