public function test__signed_serialize_deserialize()
{
$certificate = new X509Certificate();
$certificate->loadFromFile(__DIR__ . '/../../../../../../web/sp/saml.crt');
$privateKey = KeyHelper::createPrivateKey(__DIR__ . '/../../../../../../web/sp/saml.key', null, true);
$authnRequest = new AuthnRequest();
$authnRequest->setID('_894da3368874d2dd637983b6812f66c444f100f205');
$authnRequest->setIssueInstant('2015-09-13T11:47:33Z');
$authnRequest->setDestination('https://idp.testshib.org/idp/profile/SAML2/POST/SSO');
$authnRequest->setIssuer((new Issuer())->setValue('https://mt.evo.loc/sp')->setFormat('urn:oasis:names:tc:SAML:2.0:nameid-format:entity'));
$authnRequest->setSignature(new SignatureWriter($certificate, $privateKey));
$serializationContext = new SerializationContext();
$authnRequest->serialize($serializationContext->getDocument(), $serializationContext);
$temporaryFilename = tempnam(sys_get_temp_dir(), 'lightsaml-');
$serializationContext->getDocument()->save($temporaryFilename);
$xml = file_get_contents($temporaryFilename);
$deserializationContext = new DeserializationContext();
$deserializationContext->getDocument()->loadXML($xml);
$authnRequest = new AuthnRequest();
$authnRequest->deserialize($deserializationContext->getDocument()->firstChild, $deserializationContext);
$signatureReader = $authnRequest->getSignature();
if ($signatureReader instanceof SignatureXmlReader) {
$certificate = new X509Certificate();
$certificate->loadFromFile(__DIR__ . '/../../../../../../web/sp/saml.crt');
$key = KeyHelper::createPublicKey($certificate);
$ok = $signatureReader->validate($key);
$this->assertTrue($ok);
} else {
throw new \LogicException('Expected Signature Xml Reader');
}
}
