Feature: Add digital signatures tab to properties window

[PMExtra]

Describe the solution/problem

I want to view and verify the digital signatures info in Files. I think we can add a tab in properties and show the signature details directly.

Requirements

• Similar design to hashes page
• Add details button/icon next to each item
• Clicking details should open the same window that File Explorer does

Files version

2.3.12.0

Windows version

10.0.19043.2006

[PMExtra]

@yaichenbaum Please let me know if you'd like to implement it or welcome the PR.

[yaira2]

@PMExtra A PR would be great, would you like to work on this?

[yaira2]

I think we need a design before approving, keeping in planning for now.

[yaira2]

As far as design goes, we can do something similar to the hashes page.

[0x5bfa]

I found that C# crypt API doesn't work properly; X509Certificate2UI.DisplayCertificate displays different certificate information from the FE one and X509Certificate.CreateFromCertFile is capabble of getting only one signature.

I'll go with CryptUIDlgViewCertificateW in Win32API. API example is here.

For others who will work on this area in the future.

• API exmaple of CryptQueryObject https://gist.githubusercontent.com/dougpuob/1cb6c2f16c95d1e7f324d23e76c80f8e/raw/05693766a2876546dee2b929cf73d0c58ff5f80b/CryptQueryObject.c
• API example to verify certification of a file https://learn.microsoft.com/en-us/windows/win32/seccrypto/example-c-program--verifying-the-signature-of-a-pe-file?redirectedfrom=MSDN
• API to get the certification state https://learn.microsoft.com/en-us/windows/win32/api/wintrust/nf-wintrust-winverifytrust
• OID list to get digest algorithm https://www.ibm.com/docs/en/zos/2.3.0?topic=programming-object-identifiers
• Source code of crypt UI https://github.com/tongzx/nt5src/blob/daad8a087a4e75422ec96b7911f1df4669989611/Source/XPSP1/NT/ds/security/cryptoapi/ui/cryptui/cryptui.rc#L733
• API reference https://stackoverflow.com/questions/1728037/how-to-know-a-file-has-digital-signature-attribute

[renanalencar]

Wow! This feature would be nice to have in Files app!

[Lamparter]

Here's a mock-up in case it would be useful 🙂

[0x5bfa]

This is what I implemented before but I discarded due to inactivity.

[yaira2]

That looks great! Do you still have the code for it?

[mr-costaalencar]

If I had time, I would like to develop this feature.

[0x5bfa]

@yaira2 I forgot to create a draft pr to leave the changes... but I can tell someone who'd like to work on this what native API should be used.