PHP Bitwasp，签署比特币-现金交易

Question

我试着签署测试比特币-现金交易，然后广播。对于bitwasp版本0.0.35.0，代码如下：

   $utxoOwnerPrivateKey = 'MyPrIvAtEKey';//public key is "16Dbmp13CqdLVwjXrd6amF48t7L8gYSGBj", note - the real private key is another
   $utxo = '5e44cdab9cb4a4f1871f2137ab568bf9ef2760e52816971fbaf0198f19e28378';
   $utxoAmount = 598558;
   $reciverPublicKey = '1EjCxux1FcohsBNGzY9KdF59Dz7MYHQyPN';
   $fee = 1000;

   $addressCreator = new \Btccom\BitcoinCash\Address\AddressCreator();

   $networkObject = \Btccom\BitcoinCash\Network\NetworkFactory::bitcoinCash();
   $keyPairInput = \BitWasp\Bitcoin\Key\PrivateKeyFactory::fromWif($utxoOwnerPrivateKey, null, $networkObject);


   $outpoint = new \BitWasp\Bitcoin\Transaction\OutPoint(\BitWasp\Buffertools\Buffer::hex($utxo, 32), 0);


   $transaction = \BitWasp\Bitcoin\Transaction\TransactionFactory::build()
       ->spendOutPoint($outpoint)
       ->payToAddress($utxoAmount - $fee, $addressCreator->fromString($reciverPublicKey, $networkObject) )
       ->get();

   echo "Unsigned transaction: " . $transaction->getHex() . '<BR><BR>';

   $signScript = \BitWasp\Bitcoin\Script\ScriptFactory::scriptPubKey()->payToPubKeyHash($keyPairInput->getPublicKey()->getPubKeyHash());
   $txOut = new \BitWasp\Bitcoin\Transaction\TransactionOutput($utxoAmount  - $fee, $signScript);

   $signer = new \BitWasp\Bitcoin\Transaction\Factory\Signer($transaction);

   $signatureChecker = \Btccom\BitcoinCash\Transaction\Factory\Checker\CheckerCreator::fromEcAdapter( \BitWasp\Bitcoin\Bitcoin::getEcAdapter() ); // for version 0.0.35
   $signer->setCheckerCreator( $signatureChecker ); // for version 0.0.35
   $input = $signer->input(0, $txOut);
   $signatureType = \Btccom\BitcoinCash\Transaction\SignatureHash\SigHash::ALL | \Btccom\BitcoinCash\Transaction\SignatureHash\SigHash::BITCOINCASH;
   $input->sign($keyPairInput, $signatureType);
   $signed = $signer->get();


   echo "Witness serialized transaction: " . $signed->getHex() . '<BR><BR>';
   echo "Base serialized transaction: " . $signed->getBaseSerialization()->getHex() . '<BR><BR>';
   echo "Script validation result: " . ($input->verify() ? "yes\n" : "no\n"). '<BR><BR>';

   die();

在这种情况下，我得到的结果是：

Script validation result: no

尝试广播BCH事务会产生一个错误：

An error occured:
16: mandatory-script-verify-flag-failed (Signature must be zero for failed CHECK(MULTI)SIG operation). Code:-26

我想，这意味着那个签名是错误的。如果删除标志$signatureType (保留此默认值)，则Script validation result将为yes，但广播将产生一个错误：

16: mandatory-script-verify-flag-failed (Signature must use SIGHASH_FORKID). Code:-26

我认为，这意味着-交易签署的比特币网络，必须签署比特币-现金规则。也许我错了。但比特币交易签名是可以的。Bitwasp没有手册，如何签署比特币-现金交易，我对bitwasp v.0.0.34.2有相同的代码(没有使用$signer->redeemBitcoinCash(true);函数的“btccom/bitwasp-比特币-bch- addon”)，但结果相同。

有趣的是，在比特币-现金签名者的代码中，它接受内部变量amount并将其包含在散列中：

$hasher = new V1Hasher($this->transaction, $this->amount);

但对于比特币bitwasp来说，它不会接受这个金额，它可能会从交易中获取一定的金额。

请帮我签一下交易，bitwasp只有比特币的例子，没有比特币-现金。在没有第三方软件的情况下，很难找到有关php alt同名签名的任何信息。致以问候。

Answer 1

此代码与PHP v.0.0.35库签署比特币-现金交易是可行的！

    $unspendedTx = '49343e0a4ef29b819f87df1371c6f8eafa1f235074a27fb6aa5f4ab4c48e5c16';
    $utxOutputIndex = 0;
    $utxoPrivateKey = 'MyPrIvAtEKey';
    $utxoAmount = 300000;
    $reciverPublicKey = '1E8XaWNsCWyVaZaWTLh8uBdAZjLQqwWmzM';
    $fee = 1000;

    $networkObject = \Btccom\BitcoinCash\Network\NetworkFactory::bitcoinCash();

    $outpoint = new \BitWasp\Bitcoin\Transaction\OutPoint(\BitWasp\Buffertools\Buffer::hex($unspendedTx, 32), $utxOutputIndex /* index of utxo in transaction, generated it */);
    $destination = \BitWasp\Bitcoin\Script\ScriptFactory::scriptPubKey()->payToPubKeyHash( (new \Btccom\BitcoinCash\Address\AddressCreator())->fromString($reciverPublicKey)->getHash() );

    $transaction = \BitWasp\Bitcoin\Transaction\TransactionFactory::build()
        ->spendOutPoint($outpoint)
        ->output($utxoAmount - $fee, $destination)
        ->get();
    echo "Unsigned transaction: " . $transaction->getHex() . '<BR><BR>';


    $keyPairInput = \BitWasp\Bitcoin\Key\PrivateKeyFactory::fromWif($utxoPrivateKey, null, $networkObject);
    $txOut = new \BitWasp\Bitcoin\Transaction\TransactionOutput($utxoAmount, \BitWasp\Bitcoin\Script\ScriptFactory::scriptPubKey()->payToPubKeyHash(  $keyPairInput->getPubKeyHash() ) );
    $signer = new \BitWasp\Bitcoin\Transaction\Factory\Signer($transaction);

    $signatureChecker = \Btccom\BitcoinCash\Transaction\Factory\Checker\CheckerCreator::fromEcAdapter( \BitWasp\Bitcoin\Bitcoin::getEcAdapter() ); // for version 0.0.35
    $signer->setCheckerCreator( $signatureChecker ); // for version 0.0.35

    $input = $signer->input(0, $txOut);
    $signatureType = \Btccom\BitcoinCash\Transaction\SignatureHash\SigHash::ALL | \Btccom\BitcoinCash\Transaction\SignatureHash\SigHash::BITCOINCASH;
    $input->sign($keyPairInput, $signatureType);
    $signed = $signer->get();


    echo "Transaction: " . $signed->getHex() . '<BR><BR>';
    die();

我广播了这个PHP生成的测试事务，参见与tx的链接。问题出在

->payToAddress($utxoAmount - $fee, $addressCreator->fromString($reciverPublicKey, $networkObject) )

也许payToAddress有一个bug，因为“手动”脚本创建给了另一个事务。第二：

$txOut = new \BitWasp\Bitcoin\Transaction\TransactionOutput($utxoAmount  - $fee, $signScript);

我们必须在没有费用的情况下创建tx输入(先前的输出)。

已使用的库( composer.json )：

{
    "require" : {
        "php" : ">=7.0",
        "bitwasp/bitcoin": "0.0.35.0",
        "btccom/bitwasp-bitcoin-bch-addon" : "0.0.2"
    }
}

希望，这将有助于所有在PHP上创建altcoin的人。