/**
* @param PrivateKey $privateKey
* @return BufferInterface
*/
private function doSerialize(PrivateKey $privateKey)
{
return new Buffer($privateKey->getSecretBinary(), 32, $this->ecAdapter->getMath());
}
/**
* @param BufferInterface $msg32
* @param PrivateKey $privateKey
* @return CompactSignature
*/
private function doSignCompact(BufferInterface $msg32, PrivateKey $privateKey)
{
$sig_t = '';
/** @var resource $sig_t */
if (1 !== secp256k1_ecdsa_sign_recoverable($this->context, $msg32->getBinary(), $privateKey->getBinary(), $sig_t)) {
throw new \RuntimeException('Secp256k1: failed to sign');
}
$recid = '';
$ser = '';
if (!secp256k1_ecdsa_recoverable_signature_serialize_compact($this->context, $sig_t, $ser, $recid)) {
throw new \RuntimeException('Failed to obtain recid');
}
unset($ser);
return new CompactSignature($this, $sig_t, $recid, $privateKey->isCompressed());
}
