public static function sign(RSAKey $key, $message, $hash)
{
Assertion::string($message);
Assertion::string($hash);
Assertion::inArray($hash, ['sha256', 'sha384', 'sha512']);
$em = self::encodeEMSAPSS($message, 8 * $key->getModulusLength() - 1, Hash::$hash());
Assertion::string($em);
$message = self::convertOctetStringToInteger($em);
$signature = self::getRSASP1($key, $message);
Assertion::isInstanceOf($signature, BigInteger::class);
return self::convertIntegerToOctetString($signature, $key->getModulusLength());
} /**
* {@inheritdoc}
*/
public function sign(JWKInterface $key, $input)
{
$this->checkKey($key);
Assertion::true($key->has('d'), 'The key is not a private key');
$priv = new RSAKey($key);
if ($this->getSignatureMethod() === self::SIGNATURE_PSS) {
$signature = JoseRSA::sign($priv, $input, $this->getAlgorithm());
$result = is_string($signature);
} else {
$result = openssl_sign($input, $signature, $priv->toPEM(), $this->getAlgorithm());
}
Assertion::true($result, 'An error occurred during the creation of the signature');
return $signature;
}
