Struct vls_protocol_client::DynSigner

pub struct DynSigner {
    pub inner: Box<dyn InnerSign>,
}

A ChannelSigner derived struct allowing run-time selection of a signer

Fields

inner: Box<dyn InnerSign>

Implementations

impl DynSigner

pub fn new<S: InnerSign + 'static>(inner: S) -> Self

Trait Implementations

impl ChannelSigner for DynSigner

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

Gets the per-commitment point for a specific commitment number

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, channel_parameters: &ChannelTransactionParameters )

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

impl Clone for DynSigner

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl EcdsaChannelSigner for DynSigner

fn sign_counterparty_commitment( &self, commitment_tx: &CommitmentTransaction, preimages: Vec<PaymentPreimage>, secp_ctx: &Secp256k1<All> ) -> Result<(Signature, Vec<Signature>), ()>

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

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

Validate the counterparty’s revocation.

fn sign_holder_commitment_and_htlcs( &self, commitment_tx: &HolderCommitmentTransaction, secp_ctx: &Secp256k1<All> ) -> Result<(Signature, Vec<Signature>), ()>

Creates a signature for a holder’s commitment transaction and its claiming HTLC transactions.

fn unsafe_sign_holder_commitment_and_htlcs( &self, commitment_tx: &HolderCommitmentTransaction, secp_ctx: &Secp256k1<All> ) -> Result<(Signature, Vec<Signature>), ()>

Same as [sign_holder_commitment_and_htlcs], 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_and_htlcs] 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_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, closing_tx: &ClosingTransaction, secp_ctx: &Secp256k1<All> ) -> Result<Signature, ()>

Create a signature for a (proposed) closing transaction.

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.

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.

impl Readable for DynSigner

fn read<R: Read>(_reader: &mut R) -> Result<Self, DecodeError>

Reads a Self in from the given Read.

impl Writeable for DynSigner

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

Writes self out to the given [Writer].

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

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 DynSigner