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Get-AuthenticodeSignature TimeStamperCertificate broken


Get-AuthenticodeSignature does not return a time stamper certificate for files which have been time stamped with a valid time stamp server.

Steps to reproduce:

Using signtool.exe (from Windows SDK), view the signature info for signtool.exe. Verify that it has been time stamped, and that you can see the time stamper certificate.

Using Get-AuthenticodeSignature, view the signature of signtool.exe. Notice that the TimeStamperCertificate field is blank.


Powershell will report any signed file as valid as long as the signature is valid, regardless of whether or not the timestamp is valid.

Powershell version:
Major Minor Build Revision
----- ----- ----- --------
5 1 14393 1066

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