SAML2\Certificate\X509::createFromCertificateData PHP Метод

    public static function createFromCertificateData($certificateContents)
    {
        $data = array('encryption' => true, 'signing' => true, 'type' => 'X509Certificate', 'X509Certificate' => $certificateContents);
        return new self($data);
    }

 /**
  * @test
  * @group signature
  */
 public function signed_message_with_valid_signature_is_validated_correctly()
 {
     $pattern = Certificate::CERTIFICATE_PATTERN;
     preg_match($pattern, CertificatesMock::PUBLIC_KEY_PEM, $matches);
     $certdata = X509::createFromCertificateData($matches[1]);
     $fingerprint = $certdata->getFingerprint();
     $fingerprint_retry = $certdata->getFingerprint();
     $this->assertTrue($fingerprint->equals($fingerprint_retry), 'Cached fingerprint does not match original');
     $config = new IdentityProvider(array('certificateFingerprints' => array($fingerprint->getRaw())));
     $validator = new FingerprintValidator(new SimpleTestLogger(), new FingerprintLoader());
     $doc = DOMDocumentFactory::fromFile(__DIR__ . '/response.xml');
     $response = new Response($doc->firstChild);
     $response->setSignatureKey(CertificatesMock::getPrivateKey());
     $response->setCertificates(array(CertificatesMock::PUBLIC_KEY_PEM));
     // convert to signed response
     $response = new Response($response->toSignedXML());
     $this->assertTrue($validator->canValidate($response, $config), 'Cannot validate the element');
     $this->assertTrue($validator->hasValidSignature($response, $config), 'The signature is not valid');
 }