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 CommitmentTransactionBuilder(LocalChannel channel, bool buildLocal, NetworkParameters networkParameters)
{
Network = networkParameters.Network;
Channel = channel;
if (buildLocal)
{
IsFunder = channel.IsFunder;
ChannelParameters = channel.LocalChannelParameters;
CommitmentTxParams = channel.LocalCommitmentTxParameters;
RemoteCommitmentTxParams = channel.RemoteCommitmentTxParameters;
}
else
{
IsFunder = !channel.IsFunder;
ChannelParameters = channel.RemoteChannelParameters;
CommitmentTxParams = channel.RemoteCommitmentTxParameters;
RemoteCommitmentTxParams = channel.LocalCommitmentTxParameters;
}
}
