use bitcoin::secp256k1::Error as SecpError;
use bitcoin::secp256k1;
+use io;
use prelude::*;
use core::cmp;
use ln::chan_utils;
}
impl Writeable for CounterpartyCommitmentSecrets {
- fn write<W: Writer>(&self, writer: &mut W) -> Result<(), ::std::io::Error> {
+ fn write<W: Writer>(&self, writer: &mut W) -> Result<(), io::Error> {
for &(ref secret, ref idx) in self.old_secrets.iter() {
writer.write_all(secret)?;
writer.write_all(&byte_utils::be64_to_array(*idx))?;
}
}
impl Readable for CounterpartyCommitmentSecrets {
- fn read<R: ::std::io::Read>(reader: &mut R) -> Result<Self, DecodeError> {
+ fn read<R: io::Read>(reader: &mut R) -> Result<Self, DecodeError> {
let mut old_secrets = [([0; 32], 1 << 48); 49];
for &mut (ref mut secret, ref mut idx) in old_secrets.iter_mut() {
*secret = Readable::read(reader)?;
}
}
+/// Gets the witnessScript for an anchor output from the funding public key.
+/// The witness in the spending input must be:
+/// <BIP 143 funding_signature>
+/// After 16 blocks of confirmation, an alternative satisfying witness could be:
+/// <>
+#[inline]
+pub(crate) fn get_anchor_redeemscript(funding_pubkey: &PublicKey) -> Script {
+ Builder::new().push_slice(&funding_pubkey.serialize()[..])
+ .push_opcode(opcodes::all::OP_CHECKSIG)
+ .push_opcode(opcodes::all::OP_IFDUP)
+ .push_opcode(opcodes::all::OP_NOTIF)
+ .push_int(16)
+ .push_opcode(opcodes::all::OP_CSV)
+ .push_opcode(opcodes::all::OP_ENDIF)
+ .into_script()
+}
+
/// Per-channel data used to build transactions in conjunction with the per-commitment data (CommitmentTransaction).
/// The fields are organized by holder/counterparty.
///