Top 20 NuGet authentication Packages

Bearer Authentication for external OAuth services.
Easy-to-use AngularJS module for token-based client authorization. Ideal for use with Web Api
Backport of Asp.Net core's policy based authorization to Asp.Net 4.
Backport of Asp.Net core's policy based authorization to Asp.Net 4 Mvc 5
Backport of Asp.Net core's policy based authorization to Asp.Net 4 WebApi 2
Microsoft Visual Studio Team Services Authentication Library for Windows
Jot is a .NET library for use with JSON Web Tokens (JWT). Jot will take care of all your JWT creation, encryption(hashing), and verification for you. Jot was made extremely flexible, if you want to use your own hash algorithm, serialization, or set custom claims it's all there for you. What set's Jo...
Middleware that enables an application to support the LINE Web Login authentication workflows.
Simple CRUD application using AngularJS, Bootstrap and MVC
OnTag Authentication Service Client
Providing APIs for manage user
HttpModule for blocking a test website from unknown visitors and bots
ASP.NET Core middleware that enables an application to support QQ OAuth 2.0 authentication workflow.
A Service Stack Auth provider that authenticates using a JWT and Auth0.
A simple JWT authentication package for API projects
A component in C# that wraps use of web-based credential page, hosted in Internet Explorer(SHDocVw). Allows use of consistent web domain to share history of login information among web and desktop applications on the same machine. Acquired security token available to desktop application without it...
HTTP Basic Authentication with ASP.NET MVC