/**
* @param string[] $selected_key_encryption_algorithms
* @param string[] $selected_content_encryption_algorithms
* @param string[] $selected_compression_methods
*
* @return \Jose\EncrypterInterface
*/
public function createEncrypter(array $selected_key_encryption_algorithms, array $selected_content_encryption_algorithms, array $selected_compression_methods)
{
$key_encryption_algorithms = $this->algorithm_manager->getSelectedAlgorithmMethods($selected_key_encryption_algorithms);
$content_encryption_algorithms = $this->algorithm_manager->getSelectedAlgorithmMethods($selected_content_encryption_algorithms);
$compression_methods = $this->compression_manager->getSelectedCompressionMethods($selected_compression_methods);
return Encrypter::createEncrypter($key_encryption_algorithms, $content_encryption_algorithms, $compression_methods);
}
/**
* @param mixed $payload
* @param \Jose\Object\JWKInterface $recipient_key
* @param array $shared_protected_headers
* @param array $shared_headers
* @param array $recipient_headers
* @param string|null $aad
*
* @return \Jose\Object\JWEInterface
*/
private static function createJWEAndEncrypt($payload, JWKInterface $recipient_key, array $shared_protected_headers = [], $shared_headers = [], $recipient_headers = [], $aad = null)
{
$complete_headers = array_merge($shared_protected_headers, $shared_headers, $recipient_headers);
Assertion::keyExists($complete_headers, 'alg', 'No "alg" parameter set in the header');
Assertion::keyExists($complete_headers, 'enc', 'No "enc" parameter set in the header');
$encrypter = Encrypter::createEncrypter([$complete_headers['alg']], [$complete_headers['enc']], ['DEF', 'ZLIB', 'GZ']);
$jwe = self::createJWE($payload, $shared_protected_headers, $shared_headers, $aad);
$jwe = $jwe->addRecipientInformation($recipient_key, $recipient_headers);
$encrypter->encrypt($jwe);
return $jwe;
}