| private getContentEncryptionAlgorithm ( array $complete_headers ) : Jose\Algorithm\ContentEncryptionAlgorithmInterface | ||
| $complete_headers | array | |
| return | Jose\Algorithm\ContentEncryptionAlgorithmInterface | |
private function getContentEncryptionAlgorithm(array $complete_headers)
{
$content_encryption_algorithm = $this->getJWAManager()->getAlgorithm($complete_headers['enc']);
Assertion::isInstanceOf($content_encryption_algorithm, Algorithm\ContentEncryptionAlgorithmInterface::class, sprintf('The key encryption algorithm "%s" is not supported or does not implement ContentEncryptionInterface.', $complete_headers['enc']));
return $content_encryption_algorithm;
}