This is an interface that middleware can be dependant upon on (via constructor injection) and application developers must provide an implementation for. Application developers can supply this facility to middleware by implementing it within their application and registering their implementation with IoC, or they can install a NuGet package that provides this facility.

The ITokenStore interface has quite a few methods and properties as well as some supporting enumerations and other interfaces. All of these types have hand written XML documentation comments in the source code. These documentation comments are installed with the assemblies when you install the OWIN Framework into your solution and are available through the Visual Studio intellisense system. This information is not reproduced here, please use the Intellisense system in Visual Studio to get help with this interface.