539     public $sigNode = null;  variable in XMLSecurityDSig
554         $this->sigNode = $sigdoc->documentElement;
562         if (empty($this->xPathCtx) && ! empty($this->sigNode)) {
563             $xpath = new DOMXPath($this->sigNode->ownerDocument);
591             $this->sigNode = $nodeset->item($pos);
593             $nodeset = $xpath->query($query, $this->sigNode);
597             return $this->sigNode;
603         $doc = $this->sigNode->ownerDocument;
625             $nodeset = $xpath->query($query, $this->sigNode);
677         $doc = $this->sigNode->ownerDocument;
682             $nodeset = $xpath->query($query, $this->sigNode);
900         $nodeset = $xpath->query($query, $this->sigNode);
911         $docElem = $this->sigNode->ownerDocument->documentElement;
912         if (! $docElem->isSameNode($this->sigNode)) {
913             $this->sigNode->parentNode->removeChild($this->sigNode);
917         $nodeset = $xpath->query($query, $this->sigNode);
1014             $nodeset = $xpath->query($query, $this->sigNode);
1024             $nodeset = $xpath->query($query, $this->sigNode);
1035       $this->sigNode->appendChild($objNode);
1044          $newData = $this->sigNode->ownerDocument->importNode($data, true);
1046          $newData = $this->sigNode->ownerDocument->createTextNode($data);
1055             $node = $this->sigNode;
1078         $doc = $this->sigNode->ownerDocument;
1082         $sigValue = $xpath->evaluate($query, $this->sigNode);
1098             $this->sigNode = $appendToNode->lastChild;
1102             $nodeset = $xpath->query($query, $this->sigNode);
1114                     $this->sigNode->appendChild($sigValueNode);
1143         $signatureElement = $document->importNode($this->sigNode, true);
1273             self::staticAdd509Cert($this->sigNode, $cert, $isPEMFormat, $isURL, $xpath, $options);
1287         $parentRef = $this->sigNode;