use BitWasp\Bitcoin\Key\PrivateKeyFactory;
use BitWasp\Bitcoin\Key\PublicKeyFactory;
use BitWasp\Bitcoin\Address\AddressFactory;
use BitWasp\Bitcoin\Rpc\RpcFactory;
$network = Bitcoin::getNetwork();
$host = '127.0.0.1';
$port = '18332';
$user = getenv('BITCOINLIB_RPC_USER') ?: 'bitcoinrpc';
$pass = getenv('BITCOINLIB_RPC_PASSWORD') ?: 'BBpsLqmCCx7Vp8sRd5ygDxFkHZBgWLTTi55QwWgN6Ng6';
Bitcoin::setNetwork(\BitWasp\Bitcoin\Network\NetworkFactory::bitcoinTestnet());
$network = Bitcoin::getNetwork();
$ecAdapter = Bitcoin::getEcAdapter();
$bitcoind = RpcFactory::bitcoind($host, $port, $user, $pass);
$privateKey1 = PrivateKeyFactory::fromHex('17a2209250b59f07a25b560aa09cb395a183eb260797c0396b82904f918518d5', true);
$privateKey2 = PrivateKeyFactory::fromHex('17a2209250b59f07a25b560aa09cb395a183eb260797c0396b82904f918518d6', true);
$redeemScript = ScriptFactory::multisig(2, array($privateKey1->getPublicKey(), $privateKey2->getPublicKey()));
$multisig = $redeemScript->getAddress();
echo "[P2SH address: " . $multisig->getAddress($network) . " ]\n";
echo "[private key order: " . implode(", ", array_map(function (PublicKeyInterface $publicKey) use($privateKey1, $privateKey2) {
if ($publicKey->getBinary() == $privateKey1->getPublicKey()->getBinary()) {
return "1";
} else {
return "2";
}
}, $redeemScript->getKeys())) . "]\n";
$myTx = $bitcoind->getrawtransaction('6d4f5d2cce43660c29e03a794497da3f204312358ca6a6e47035ef916ce19db9', true);
$spendOutput = 0;
$recipient = AddressFactory::fromString('n1b2a9rFvuU9wBgBaoWngNvvMxRV94ke3x');
echo "[Send to: " . $recipient->getAddress($network) . " \n";
// Prep work - importing from a tx will only bring container to contents of $new - no metadata
$new = new \BitWasp\Bitcoin\Transaction\TransactionBuilder($ecAdapter);
/**
* Returns the redeemScript. Note - keys are already sorted in the constructor, so this is not required in ScriptFactory.
*
* @return \BitWasp\Bitcoin\Script\RedeemScript
*/
public function getRedeemScript()
{
return ScriptFactory::multisig($this->m, array_map(function (HierarchicalKey $key) {
return $key->getPublicKey();
}, $this->keys));
}
/**
* @param Buffer $secret
* @param PublicKeyInterface $a1
* @param PublicKeyInterface $a2
* @param PublicKeyInterface $b1
* @param PublicKeyInterface $b2
* @return Script
*/
public function payToLightningChannel(Buffer $secret, PublicKeyInterface $a1, PublicKeyInterface $a2, PublicKeyInterface $b1, PublicKeyInterface $b2)
{
return ScriptFactory::create()->op('OP_DEPTH')->op('OP_3')->op('OP_EQUAL')->op('OP_IF')->op('OP_HASH160')->push(Hash::sha256ripe160($secret))->op('OP_EQUALVERIFY')->concat(ScriptFactory::multisig(2, [$a1, $b1]))->op('OP_ELSE')->concat(ScriptFactory::multisig(2, [$a2, $b2]))->op('OP_ENDIF');
}
<?php
require "../vendor/autoload.php";
use BitWasp\Bitcoin\Bitcoin;
use BitWasp\Bitcoin\Key\PrivateKeyFactory;
use BitWasp\Bitcoin\Script\ScriptFactory;
use BitWasp\Bitcoin\Transaction\Transaction;
use BitWasp\Bitcoin\Transaction\TransactionInput;
use BitWasp\Bitcoin\Transaction\TransactionOutput;
use BitWasp\Bitcoin\Transaction\TransactionBuilder;
use BitWasp\Bitcoin\Transaction\TransactionFactory;
$ecAdapter = Bitcoin::getEcAdapter();
// Two users independently create private keys.
$pk1 = PrivateKeyFactory::fromHex('421c76d77563afa1914846b010bd164f395bd34c2102e5e99e0cb9cf173c1d87');
$pk2 = PrivateKeyFactory::fromHex('f7225388c1d69d57e6251c9fda50cbbf9e05131e5adb81e5aa0422402f048162');
// They exchange public keys, and a multisignature address is made.
$redeemScript = ScriptFactory::multisig(2, [$pk1->getPublicKey(), $pk2->getPublicKey()]);
$outputScript = $redeemScript->getOutputScript();
// The address is funded with a transaction (fake, for the purposes of this script).
// You would do getrawtransaction normally
$spendTx = new Transaction();
$spendTx->getInputs()->addInput(new TransactionInput('4141414141414141414141414141414141414141414141414141414141414141', 0));
$spendTx->getOutputs()->addOutput(new TransactionOutput(50, $outputScript));
// One party wants to spend funds. He creates a transaction spending the funding tx to his address.
$builder = new TransactionBuilder($ecAdapter);
$builder->spendOutput($spendTx, 0)->payToAddress($pk1->getAddress(), 50)->signInputWithKey($pk1, $outputScript, 0, $redeemScript)->signInputWithKey($pk2, $outputScript, 0, $redeemScript);
$rawTx = $builder->getTransaction()->getHex();
echo "Fully signed transaction: " . $builder->getTransaction()->getHex() . "\n";
