We were porting a .NET 4.0 class Library to .NET Core 1.1 and struck with an issue of very limit support for file Security and permissions in .NET Core CLR.
We were tryin
These APIs haven't been included in .NET Standard due to low use and being Windows specific.
See discussion here regarding its exclusion from .NET Standard: https://github.com/dotnet/standard/issues/15
As a workaround there is a NuGet package which provides this functionality: https://www.nuget.org/packages/System.IO.FileSystem.AccessControl/
Also a related question: How to modify file access control in .NET Core