Integrity Check

If you use GPass in a hostile environment, especially if your GPass software is not directly downloaded from the GPass official website (www.gpass1.com), you should check its integrity before using it, just in case some bad guys may have implanted virus or Trojan in the software. Never trust a file sent to you as a GPass patch without checking its integrity.

We use digital signatures for the exe and dll files of GPass to safeguard its integrity. To check the digital signature of a file, right click on its icon, select Properties from the pop up menu, and select the Digital Signatures tab. You should see a signature by "The World Gate, Inc". Highlight the signature, click the Details button, and you should "This digital signature is OK." If you do not see the Signatures tab, or if the signature is not by "The World Gate, Inc", or if the signiture is invalid, you should not use the file. See the following screenshot as example.

You can futher check that the signing certificate of "The World Gate, Inc" has not been forged, even though this is very unlikely. Click the View Certificate button, in the Details tab of the new window, you should see the Thumbprint of the certificate: 72 13 8b 4d a2 a5 36 57...  

If you download the GPass installer (exe file) with Internet Explorer, the following window will popup when you start the installer, which displays the signing company and integrity of the signature.