Signing the drivers

The drivers must be signed using the Microsoft Dev Portal. The old approach with cross-certificates doesn’t work anymore.

To sign a driver:

  • Get an EV code signing certificate.

  • Register on the Dev Portal: https://developer.microsoft.com/dashboard

  • Prepare a .cab archive with the driver and an .inf file.

  • Upload and sign the CAB on the portal using attestation signing.

To prepare the CAB files required for signing via the Microsoft Dev Portal, you can use this set of scripts: https://netfiltersdk.com/download/dist_sign.zip