Determining the file fingerprint of the OEM certificate file

You need this functionality to request a TwinCAT OEM Certificate Extended Validation (TC0008).

Determining the file fingerprint of the OEM certificate file 1:

System requirements

This functionality requires TwinCAT 3.1 Build 4024 of higher.

Determining the file fingerprint of the OEM certificate file 2:

The OEM Certificate Request File becomes the TwinCAT OEM certificate once it is signed by Beckhoff. The files do not differ except for this signature. For this reason, the term "TwinCAT OEM certificate file" is used for both file versions in the following sections.

Reading the "file fingerprint" of an OEM certificate file via TwinCAT 3 Engineering

For this function it is necessary that the OEM certificate file is located in this directory: "c:\twincat\3.1\customconfig\certificates".

This directory contains your OEM certificate, if you already have a certificate and want to renew it.

If you did not change the suggested directory when creating the "OEM Certificate Request File", the file is already in this directory.

Procedure:

  1. Call up the TwinCAT 3 Software Protection configurator.
    Determining the file fingerprint of the OEM certificate file 3:
  2. Select the Certificates tab.
  3. Check the Extended Info checkbox.
  4. In the window scroll to the right until you see the Fingerprint column. (As an alternative, you can simply double-click the certificate line. The Fingerprint file is then displayed in a pop-up window:
    Determining the file fingerprint of the OEM certificate file 4:
Determining the file fingerprint of the OEM certificate file 5:

The shortcut [Ctrl] + [C] can be used to copy the fingerprint data from the message window to the Windows clipboard.