While creating object of QSSLCertificate, Applications hangs when sonera GemPlus 3G sim is present.

    QSslCertificate* iCrt;    
    // Selecting a certificate from the file dialog
     QString crtFilename = QFileDialog::getOpenFileName(this,QString()
     ,tr("Certificate Files (*.der *.pem)"));
     QFile crtFile(crtFilename);     
     if(!crtFile.open(QIODevice::ReadOnly))
      {         
       return ;
      }
     else
      {         
       if(crtFilename.contains(".der"))
        {           
         // Loading DER certificate
         iCrt = new QSslCertificate(&crtFile,QSsl::Der);  
		 // this line fails and application jams  when sonera sim is inserted 		 
		 // else this will pass and all information for the selected certificate is fetched
        }
       else
        {       
         // Loading PEM certificate
         iCrt = new QSslCertificate(&crtFile,QSsl::Pem);		 
        }
       QStringList issuerInfo;
       //Fetching the issuer info      
       issuerInfo.append(iCrt->issuerInfo(QSslCertificate::Organization));
       LogMsg(issuerInfo.at(0));
       
      }