public function associate_sigs_with_keys($raw_tx, $json_string, $address_version = '00')
{
$raw_tx = trim($raw_tx);
$json_string = str_replace("'", '', $json_string);
$decode = \BitWasp\BitcoinLib\RawTransaction::decode($raw_tx, $address_version);
if ($decode == FALSE) {
return FALSE;
}
$json_arr = (array) json_decode($json_string);
$message_hash = \BitWasp\BitcoinLib\RawTransaction::_create_txin_signature_hash($raw_tx, $json_string);
$results = array();
foreach ($decode['vin'] as $i => $vin) {
// Decode previous scriptPubKey to learn tramsaction type.
$type_info = \BitWasp\BitcoinLib\RawTransaction::_get_transaction_type(\BitWasp\BitcoinLib\RawTransaction::_decode_scriptPubKey($json_arr[$i]->scriptPubKey));
if ($type_info['type'] == 'scripthash') {
// Pay-to-script-hash. Check OP_FALSE <sig> ... <redeemScript>
// Store the redeemScript, then remove OP_FALSE + the redeemScript from the array.
$scripts = explode(" ", $vin['scriptSig']['asm']);
$redeemScript = \BitWasp\BitcoinLib\RawTransaction::decode_redeem_script(end($scripts));
unset($scripts[count($scripts) - 1]);
// Unset redeemScript
unset($scripts[0]);
// Unset '0';
// Extract signatures, remove the "0" byte, and redeemScript.
// Loop through the remaining values - the signatures
foreach ($scripts as $signature) {
// Test each signature with the public keys in the redeemScript.
foreach ($redeemScript['keys'] as $public_key) {
if (\BitWasp\BitcoinLib\RawTransaction::_check_sig($signature, $message_hash[$i], $public_key) == TRUE) {
$results[$i][$public_key] = $signature;
}
}
}
}
}
return $results;
}
