How to extract the date a C# manifest was signed

Question

I am trying to retrieve the date that the manifest was signed because I need to compare the date to the expiration date of a certificate. the manifest signature tag seems to contain no timestamp in it.

I am using System.Security.Cryptography.Xml.SignedXml to load a manifest file. I'm unable to determine the method I need to use to extract the date the manifest was signed.

There is no plain text date in the manifest file itself so im assuming its embedded in the signaturevalue or other tag?

Am I taking the wrong approach to this?

Try to get the timestamp using p/invoke as described in [this question][1] [1]: http://stackoverflow.com/questions/3281057/get-timestamp-from-authenticode-signed-files-in-net/4927876#4927876 — SlavaGu, Mar 09 '12 at 09:53
Isn't that just the same as the date the file was last modified? — Chibueze Opata, Jun 20 '12 at 21:23

score 1 · Answer 1 · answered Mar 12 '12 at 23:46

1

I'm no expert with this kind of thing, but you might be able to use Mage.exe (Microsoft's command line Manifest Generation and Editing Tool) to read the timestamp from the manifest file. It comes with Visual Studio.

answered Mar 12 '12 at 23:46

Sheridan

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score 0 · Answer 2 · edited Nov 16 '12 at 07:58

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You might get some info from the MSDN docs.

edited Nov 16 '12 at 07:58

Echilon

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answered Apr 01 '12 at 10:26

anit

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How to extract the date a C# manifest was signed

2 Answers2