Struct SignerClient

pub struct SignerClient { /* private fields */ }

Trait Implementations

impl ChannelSigner for SignerClient

fn get_per_commitment_point( &self, idx: u64, _secp_ctx: &Secp256k1<All>, ) -> PublicKey

Gets the per-commitment point for a specific commitment number

fn validate_counterparty_revocation( &self, idx: u64, secret: &SecretKey, ) -> Result<(), ()>

Validate the counterparty’s revocation.

fn release_commitment_secret(&self, idx: u64) -> [u8; 32]

Gets the commitment secret for a specific commitment number as part of the revocation process

fn validate_holder_commitment( &self, holder_tx: &HolderCommitmentTransaction, _preimages: Vec<PaymentPreimage>, ) -> Result<(), ()>

Validate the counterparty’s signatures on the holder commitment transaction and HTLCs.

fn pubkeys(&self) -> &ChannelPublicKeys

Returns the holder’s channel public keys and basepoints.

fn channel_keys_id(&self) -> [u8; 32]

Returns an arbitrary identifier describing the set of keys which are provided back to you in some SpendableOutputDescriptor types. This should be sufficient to identify this EcdsaChannelSigner object uniquely and lookup or re-derive its keys.

fn provide_channel_parameters(&mut self, p: &ChannelTransactionParameters)

Set the counterparty static channel data, including basepoints, counterparty_selected/holder_selected_contest_delay and funding outpoint.

impl Clone for SignerClient

fn clone(&self) -> SignerClient

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl EcdsaChannelSigner for SignerClient

fn sign_counterparty_commitment( &self, commitment_tx: &CommitmentTransaction, _preimages: Vec<PaymentPreimage>, _preimages_ount: Vec<PaymentPreimage>, _secp_ctx: &Secp256k1<All>, ) -> Result<(Signature, Vec<Signature>), ()>

Create a signature for a counterparty’s commitment transaction and associated HTLC transactions.

fn sign_holder_commitment( &self, commitment_tx: &HolderCommitmentTransaction, _secp_ctx: &Secp256k1<All>, ) -> Result<Signature, ()>

Creates a signature for a holder’s commitment transaction.

fn unsafe_sign_holder_commitment( &self, _commitment_tx: &HolderCommitmentTransaction, _secp_ctx: &Secp256k1<All>, ) -> Result<Signature, ()>

Same as [sign_holder_commitment], but exists only for tests to get access to holder commitment transactions which will be broadcasted later, after the channel has moved on to a newer state. Thus, needs its own method as [sign_holder_commitment] may enforce that we only ever get called once.

fn sign_justice_revoked_output( &self, justice_tx: &Transaction, input: usize, amount: u64, per_commitment_key: &SecretKey, _secp_ctx: &Secp256k1<All>, ) -> Result<Signature, ()>

Create a signature for the given input in a transaction spending an HTLC transaction output or a commitment transaction to_local output when our counterparty broadcasts an old state.

fn sign_justice_revoked_htlc( &self, justice_tx: &Transaction, input: usize, amount: u64, per_commitment_key: &SecretKey, htlc: &HTLCOutputInCommitment, _secp_ctx: &Secp256k1<All>, ) -> Result<Signature, ()>

Create a signature for the given input in a transaction spending a commitment transaction HTLC output when our counterparty broadcasts an old state.

fn sign_holder_htlc_transaction( &self, htlc_tx: &Transaction, input: usize, htlc_descriptor: &HTLCDescriptor, _secp_ctx: &Secp256k1<All>, ) -> Result<Signature, ()>

Computes the signature for a commitment transaction’s HTLC output used as an input within htlc_tx, which spends the commitment transaction at index input. The signature returned must be be computed using EcdsaSighashType::All.

fn sign_counterparty_htlc_transaction( &self, htlc_tx: &Transaction, input: usize, amount: u64, per_commitment_point: &PublicKey, htlc: &HTLCOutputInCommitment, _secp_ctx: &Secp256k1<All>, ) -> Result<Signature, ()>

Create a signature for a claiming transaction for a HTLC output on a counterparty’s commitment transaction, either offered or received.

fn sign_closing_transaction( &self, tx: &ClosingTransaction, _secp_ctx: &Secp256k1<All>, ) -> Result<Signature, ()>

Create a signature for a (proposed) closing transaction.

fn sign_holder_anchor_input( &self, _anchor_tx: &Transaction, _input: usize, _secp_ctx: &Secp256k1<All>, ) -> Result<Signature, ()>

Computes the signature for a commitment transaction’s anchor output used as an input within anchor_tx, which spends the commitment transaction, at index input.

fn sign_channel_announcement_with_funding_key( &self, msg: &UnsignedChannelAnnouncement, _secp_ctx: &Secp256k1<All>, ) -> Result<Signature, ()>

Signs a channel announcement message with our funding key proving it comes from one of the channel participants.

impl InnerSign for SignerClient

fn box_clone(&self) -> Box<dyn InnerSign>

fn as_any(&self) -> &dyn Any

fn vwrite(&self, writer: &mut Vec<u8>) -> Result<(), Error>

impl Writeable for SignerClient

fn write<W: Writer>(&self, writer: &mut W) -> Result<(), Error>

Writes self out to the given Writer.

fn encode(&self) -> Vec<u8>

Writes self out to a Vec<u8>.

fn serialized_length(&self) -> usize

Gets the length of this object after it has been serialized. This can be overridden to optimize cases where we prepend an object with its length.

impl WriteableEcdsaChannelSigner for SignerClient