I’ve signed my 64bit KMDF driver (GlobalSign provided certificate) and it works as expected. Everything verifies that the signing worked, driver installs fine on Vista 64. When the driver installs the user is told that the driver came from
“CompanyX” and I get the little certificate icon. In other words, all signs
point to it being signed correctly.
Once the driver is installed if I go to the device manager and click on
properties for the device that dialog box says “Digital Signer Company X”.
However, if I click on the “Driver Details” button and select the .sys file
for my driver that dialog box says “Digital Signer Not digitally signed”.
Why does this 2nd dialog box under driver details seem to think the .sys
file isn’t signed? If I run signtool verify on the .sys file it confirms
the chain and reports no issues. My driver is not WHQL certified where all
the other drivers on my machine are and say “Microsoft” in this area.
What’s the deal with the driver details box?
Thanks in advance,
Jason.