Owin. Authentication. Ntlm
An NTLM authentication middleware for OWIN that enables you to use NTLM (Windows) Authentication independently of IIS or HTTPListener.
Furthermore it integrates with ASP.NET Identity 2.0 and allows you to have NTLM as yet another mean of authentication toghether with true local application accounts!
Added a filtering callback (NtlmAuthenticationOptions.Filter) to the options to have more control on who passes the authentication based on request origin and windows identity
Fixed issue with callback path not being recognized when the OWIN pipeline is Mapped to a sub-path (app.Map("/somePath", af =>...))