/**
* @param \BitWasp\Bitcoin\Crypto\EcAdapter\Signature\SignatureInterface[] $signatures
* @param \BitWasp\Bitcoin\Crypto\EcAdapter\Key\PublicKeyInterface[] $publicKeys
* @param BufferInterface $messageHash
* @return \SplObjectStorage
*/
public function link(array $signatures, array $publicKeys, BufferInterface $messageHash)
{
$sigCount = count($signatures);
$storage = new \SplObjectStorage();
foreach ($signatures as $signature) {
foreach ($publicKeys as $key) {
if ($this->ecAdapter->verify($messageHash, $key, $signature)) {
$storage->attach($key, $signature);
if (count($storage) === $sigCount) {
break 2;
}
break;
}
}
}
return $storage;
}
/**
* @param ScriptInterface $script
* @param Buffer $sigBuf
* @param Buffer $keyBuf
* @return bool
* @throws ScriptRuntimeException
* @throws \Exception
*/
private function checkSig(ScriptInterface $script, Buffer $sigBuf, Buffer $keyBuf)
{
$this->checkSignatureEncoding($sigBuf)->checkPublicKeyEncoding($keyBuf);
try {
$txSignature = TransactionSignatureFactory::fromHex($sigBuf->getHex());
$publicKey = PublicKeyFactory::fromHex($keyBuf->getHex());
return $this->ecAdapter->verify($this->transaction->getSignatureHash()->calculate($script, $this->inputToSign, $txSignature->getHashType()), $publicKey, $txSignature->getSignature());
} catch (\Exception $e) {
return false;
}
}
/**
* @param ScriptInterface $script
* @param BufferInterface $sigBuf
* @param BufferInterface $keyBuf
* @param int $sigVersion
* @param int $flags
* @return bool
* @throws ScriptRuntimeException
*/
public function checkSig(ScriptInterface $script, BufferInterface $sigBuf, BufferInterface $keyBuf, $sigVersion, $flags)
{
$this->checkSignatureEncoding($sigBuf, $flags)->checkPublicKeyEncoding($keyBuf, $flags);
try {
$txSignature = TransactionSignatureFactory::fromHex($sigBuf->getHex());
$publicKey = PublicKeyFactory::fromHex($keyBuf->getHex());
if ($sigVersion === 1) {
$hasher = new V1Hasher($this->transaction, $this->amount);
} else {
$hasher = new Hasher($this->transaction);
}
$hash = $hasher->calculate($script, $this->nInput, $txSignature->getHashType());
return $this->adapter->verify($hash, $publicKey, $txSignature->getSignature());
} catch (\Exception $e) {
return false;
}
}
