/**
*
* @see \CryptoUtil\Crypto\Crypto::sign()
*/
public function sign($data, PrivateKeyInfo $privkey_info, SignatureAlgorithmIdentifier $algo)
{
$this->_checkSignatureAlgoAndKey($algo, $privkey_info->algorithmIdentifier());
$result = openssl_sign($data, $signature, $privkey_info->toPEM(), $this->_algoToDigest($algo));
if (false === $result) {
throw new \RuntimeException("openssl_sign() failed: " . $this->_getLastError());
}
return new Signature($signature);
}
/**
* Convert JWK to PEM.
*
* @return PEM PRIVATE KEY
*/
public function toPEM()
{
$n = $this->modulusParameter()->number()->base10();
$e = $this->exponentParameter()->number()->base10();
$d = $this->privateExponentParameter()->number()->base10();
$p = $this->firstPrimeFactorParameter()->number()->base10();
$q = $this->secondPrimeFactorParameter()->number()->base10();
$dp = $this->firstFactorCRTExponentParameter()->number()->base10();
$dq = $this->secondFactorCRTExponentParameter()->number()->base10();
$qi = $this->firstCRTCoefficientParameter()->number()->base10();
$pk = new RSAPrivateKey($n, $e, $d, $p, $q, $dp, $dq, $qi);
$pki = new PrivateKeyInfo(new RSAEncryptionAlgorithmIdentifier(), $pk->toDER());
return $pki->toPEM();
}
