/**
* @return bool
*/
public function isMultisig()
{
if (count($this->decoded) < 3) {
return false;
}
$final = end($this->decoded);
if (!$final || !$final->isPush()) {
return false;
}
$script = new Script($final->getData());
$decoded = $script->getScriptParser()->decode();
$count = count($decoded);
$mOp = $decoded[0];
$nOp = $decoded[$count - 2];
if ($mOp->isPush() || $nOp->isPush()) {
return false;
}
if ($mOp->getOp() < Opcodes::OP_0 || $nOp->getOp() > Opcodes::OP_16) {
return false;
}
/** @var Operation[] $keys */
$keys = array_slice($decoded, 1, -2);
$keysValid = true;
foreach ($keys as $key) {
$keysValid &= $key->isPush() && PublicKey::isCompressedOrUncompressed($key->getData());
}
return $keysValid;
}
/**
* @return bool
*/
public function isMultisig()
{
if (count($this->evalScript) < 3) {
return false;
}
$final = end($this->evalScript);
if (!$final || !$final instanceof Buffer) {
return false;
}
$script = new Script($final);
$parsed = $script->getScriptParser()->parse();
$count = count($parsed);
$opCodes = $script->getOpCodes();
$mOp = $parsed[0];
$nOp = $parsed[$count - 2];
$keys = array_slice($parsed, 1, -2);
$keysValid = true;
foreach ($keys as $key) {
$keysValid &= $key instanceof Buffer && PublicKey::isCompressedOrUncompressed($key);
}
return $opCodes->cmp($opCodes->getOpByName($mOp), 'OP_0') >= 0 && $opCodes->cmp($opCodes->getOpByName($nOp), 'OP_16') <= 0 && $keysValid;
}
