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Thread: Digital Signature verification

  1. #1
    Senior Member
    Join Date
    May 2002

    Digital Signature verification

    I have a digital signature from MS that I have signed particular DLL files in my application. I was wondering if anyone had a program that could take the digital signature and verify that those DLL files are in fact signed with my digital signature so that I have a confirmation that yes, in fact those DLLs ARE signed with the proper signature.
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  2. #2
    Senior Member
    Join Date
    Mar 2004

    I guess that you are looking for Signtool[1], which is part of the .NET SDK.
    You can verify the signature by (depends a bit on your system configuration)
    signtool.exe verify /a /v mydll.dll
    Have a look at the full authenticode procedure[2] to get the idea what is
    behind the digital signature automation.


    [1] http://msdn2.microsoft.com/en-us/library/8s9b9yaz.aspx
    [2] http://msdn.microsoft.com/library/de...Developers.asp
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  3. #3

    based on my understanding to your questions...

    Start->Programs->Accessories->System Tools->System Info->Tools Button->File Verification Utility

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