/**
* Get ASN.1 structure.
*
* @return Sequence
*/
public function toASN1()
{
$elements = array(new Integer($this->_version), $this->_holder->toASN1(), $this->_issuer->toASN1(), $this->signature()->toASN1(), new Integer($this->serialNumber()), $this->_attrCertValidityPeriod->toASN1(), $this->_attributes->toASN1());
if (isset($this->_issuerUniqueID)) {
$elements[] = $this->_issuerUniqueID->toASN1();
}
if (count($this->_extensions)) {
$elements[] = $this->_extensions->toASN1();
}
return new Sequence(...$elements);
}
/**
* Check whether issuerUID matches given certificate.
*
* @param Certificate $cert
* @return boolean
*/
private function _checkUniqueID(Certificate $cert)
{
if (!$cert->tbsCertificate()->hasIssuerUniqueID()) {
return false;
}
$uid = $cert->tbsCertificate()->issuerUniqueID()->string();
if ($this->_issuerUID->string() != $uid) {
return false;
}
return true;
}
/**
* Generate ASN.1 structure.
*
* @return Sequence
*/
public function toASN1()
{
$elements = array();
$version = $this->version();
// if version is not default
if ($version != self::VERSION_1) {
$elements[] = new ExplicitlyTaggedType(0, new Integer($version));
}
$serial = $this->serialNumber();
$signature = $this->signature();
// add required elements
array_push($elements, new Integer($serial), $signature->toASN1(), $this->_issuer->toASN1(), $this->_validity->toASN1(), $this->_subject->toASN1(), $this->_subjectPublicKeyInfo->toASN1());
if (isset($this->_issuerUniqueID)) {
$elements[] = new ImplicitlyTaggedType(1, $this->_issuerUniqueID->toASN1());
}
if (isset($this->_subjectUniqueID)) {
$elements[] = new ImplicitlyTaggedType(2, $this->_subjectUniqueID->toASN1());
}
if (count($this->_extensions)) {
$elements[] = new ExplicitlyTaggedType(3, $this->_extensions->toASN1());
}
return new Sequence(...$elements);
}