At long last, Microsoft have cross-certified 4 of our Root Certificates for Kernel Mode Code Signing!
You can find the cross-certificates in the attached .zip file. UTN-USERFirst-Object_kmod.crt is the file that most customers will need.
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We are owning a certificate for code signing from comodo from 02/19/2013. Is it possible to use this for kernel mode 64bit driver signing or do I have to request a new one?
Oliver, you can use your existing code signing certificate for kernel mode code signing.