- fn sign_channel_announcement(&self, msg: &msgs::UnsignedChannelAnnouncement, secp_ctx: &Secp256k1<secp256k1::All>) -> Result<Signature, ()> {
+ fn sign_holder_anchor_input(
+ &self, anchor_tx: &Transaction, input: usize, secp_ctx: &Secp256k1<secp256k1::All>,
+ ) -> Result<Signature, ()> {
+ debug_assert!(MIN_CHAN_DUST_LIMIT_SATOSHIS > ANCHOR_OUTPUT_VALUE_SATOSHI);
+ // As long as our minimum dust limit is enforced and is greater than our anchor output
+ // value, an anchor output can only have an index within [0, 1].
+ assert!(anchor_tx.input[input].previous_output.vout == 0 || anchor_tx.input[input].previous_output.vout == 1);
+ self.inner.sign_holder_anchor_input(anchor_tx, input, secp_ctx)
+ }
+
+ fn sign_channel_announcement(&self, msg: &msgs::UnsignedChannelAnnouncement, secp_ctx: &Secp256k1<secp256k1::All>)
+ -> Result<(Signature, Signature), ()> {