Get EFS encrypted files details using C#

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C#

Win32

encryption

Hi,

I need to retreive some more information about encrypted files on computers to make a full report.

Basicaly, I can identify if a file/directory is encrypted but I'd like to know who can access them (name and certificate thumbprint) and if there is a recovery agent set.

I need exactly the same information you can find in :
- Right click on a file and click Properties
- In General Tab, click Advanced ... at the bottom
- When the files is encrypted, Details button is enabled.
- The information appears after clicking it.

It seems I have to use the Win32 API. I found the following thread that makes me think about it :
http://www.dotnetmonster.com/Uwe/Forum.aspx/dotnet-interop/2391/NullReferenceException-after-a-Marshal-StructureToPtr[^]

Any idea ?

Thanks a lot for your suggestions