Package org.consensusj.bitcoinj.signing

Interface BaseTransactionSigner

All Superinterfaces:

TransactionSigner

All Known Implementing Classes:

ECKeySigner, HDKeychainSigner

public interface BaseTransactionSigner
extends TransactionSigner

A template interface, implementations need only implement keyForInput(TransactionInputData). The HDKeychainSigner implementation can sign transactions using a bitcoinj DeterministicKeyChain.

Keys and PubKeys can be searched for, but not UTXOs or amounts

Field Summary

Fields

Modifier and Type	Field	Description
static final org.slf4j.Logger	log

Method Summary

Modifier and Type	Method	Description
default void	addSignedInput(org.bitcoinj.core.Transaction tx, TransactionInputData in, Supplier<? extends RuntimeException> exceptionSupplier)
Optional<org.bitcoinj.crypto.ECKey>	keyForInput(TransactionInputData input)	Return an ECKey, if available for the provided input
default Optional<org.bitcoinj.crypto.ECKey>	pubKeyForInput(TransactionInputData input)
default CompletableFuture<org.bitcoinj.core.Transaction>	signTransaction(SigningRequest request)	Create a signed bitcoinj transaction from the signing request
default Optional<Exception>	verify(org.bitcoinj.core.Transaction tx, List<TransactionInputData> reqInputs)
default Optional<Exception>	verifyInput(org.bitcoinj.core.Transaction tx, int index, TransactionInputData inputData)

Field Details

log

static final org.slf4j.Logger log

Method Details

signTransaction

default CompletableFuture<org.bitcoinj.core.Transaction> signTransaction(SigningRequest request)

Create a signed bitcoinj transaction from the signing request

Specified by:

signTransaction in interface TransactionSigner

Parameters:

request - Signing request with data for all inputs and all outputs

Returns:

A signed transaction (should be treated as immutable)

verify

default Optional<Exception> verify(org.bitcoinj.core.Transaction tx,
 List<TransactionInputData> reqInputs)

verifyInput

default Optional<Exception> verifyInput(org.bitcoinj.core.Transaction tx,
 int index,
 TransactionInputData inputData)

addSignedInput

default void addSignedInput(org.bitcoinj.core.Transaction tx,
 TransactionInputData in,
 Supplier<? extends RuntimeException> exceptionSupplier)

Parameters:

tx - Mutable transaction currently being built

in - The transaction input data

exceptionSupplier - exception to throw if key is not available.

keyForInput

Optional<org.bitcoinj.crypto.ECKey> keyForInput(TransactionInputData input)

Return an ECKey, if available for the provided input

Parameters:

input - A transaction input

Returns:

The ECKey or empty

pubKeyForInput

default Optional<org.bitcoinj.crypto.ECKey> pubKeyForInput(TransactionInputData input)