Fixed certificate base64 string.

libEet/eetsigner.cpp

@@ -58,7 +58,7 @@ QString EetSigner::getCertificate()
 
     if (!m_bundle.certificateChain().isEmpty())
     {
-        return m_bundle.certificateChain().primary().toPEM();
+        return QString(m_bundle.certificateChain().primary().toDER().toBase64());
     }
 
     return "";