Getting Platform Not Supported Error

[Derrick-Tan-Aquametro]

I am in windows 10.

All the libsodium.dll files is here:

But I am getting this error... It is after build, does it affect by Virtual Machine? I don't think so right...

[mimeister]

I seem to have the the same problem with my .NET 6 WPF applications. When running on a physical Win10 machine, everything is fine, but if I run the applications inside of a Win10 VirtualBox VM or the Windows Sandbox a PlatformNotSupportedException is thrown as soon as any NSec functionality is used:

2023-08-17 12:59:45.6827 ERROR System.Exception System.PlatformNotSupportedException: Could not initialize platform-specific components. NSec may not be supported on this platform. See https://nsec.rocks/docs/install for more information. 
EXCEPTION: System.PlatformNotSupportedException: Could not initialize platform-specific components. NSec may not be supported on this platform. See https://nsec.rocks/docs/install for more information.
 ---> System.DllNotFoundException: Unable to load DLL 'libsodium' or one of its dependencies: Das angegebene Modul wurde nicht gefunden. (0x8007007E)
   at Interop.Libsodium.sodium_library_version_major()
   at NSec.Cryptography.Sodium.InitializeCore()
   --- End of inner exception stack trace ---
   at NSec.Cryptography.Sodium.InitializeCore()
   at NSec.Cryptography.Algorithm..ctor()
   at NSec.Cryptography.HashAlgorithm..ctor(Int32 hashSize)
   at NSec.Cryptography.Blake2b..ctor(Int32 hashSize)
   at NSec.Cryptography.HashAlgorithm.get_Blake2b_256()

Edit: The VMs are running .NET Desktop Runtime 6.0.21. But after upgrading the physical machine from 6.0.19 to 6.0.21 it still works, so it's probably not an issue of the runtime.

[samuel-lucas6]

The Visual C++ Redistributable is required on Windows. This is mentioned at the bottom of the NSec Installation page. You need the vcruntime DLL in the same directory as a self-contained application if the runtime hasn't been installed (see #67).

[mimeister]

Thanks, I had overlooked that. It works after installing that.

[samuel-lucas6]

It is quite easy to miss. @ektrah do you think it would be worth putting it in a highlighted Note section like the warning about nonce reuse for AEADs?

[ektrah]

I have reworked the page a bit in 0eb608dd6908f4ed5ba6446a3f6b7ecb04e799a2. I hope that makes it more clear 😸