Top 20 NuGet authentication Packages

Simple implementation of basic authentication using only one dll and one xml file with credentials.
NetSqlAzMan is for all Microsoft .NET 4.0 developers that need to manage loosely-coupled applicative authorizations, that is, weakly coupled with source code, in a light and fast way having all these authorizations in a relational database such as MS Sql Server (2000/MSDE/2005/2008/Express).
MADAM is an HTTP module for ASP.NET (1.1 or later) that allows a single web application to employ standard HTTP authentication schemes (like Basic and Digest) to be used in addition to the non-standard Forms authentication. MADAM also includes a Basic authentication HTTP module.
A small set of purposefully simple interfaces that are commonly required in .NET web applications.
Library for Authenticating with Facebook OAuth and populating the Profile object with information from the user's open graph. It is designed to work with FormsAuthentication, it will create users and populate their profile when they log in & authorise your application. For more detailed instruct...
This package is now rebranded to: SimpleAuthentication.Core
Download a sample at http://www.the2ndfactor.com/developer/ - the 2ndfactor is a two factor authentication system in the cloud for the enterprise and open web. Use this library to integrate your application with the 2ndfactor.
Implementation of the Hawk authentication scheme for Web API v2 and Katana.
[FX4.0] This module contains BasicAuthenticationHttpModule module that allow you using easily a custom basic http authentication for every IIS/ASP.NET hosted applications, like also WCF REST, WCF SOAP, OData Services & so on...
Squire framework security API.
Barricade is a lightweight membership system. An ASP.NET Web API security library that implements OAuth 2 authentication and claim based authorizations.
APIFrame is a C#.NET library that implements the core components required for ASP.NET Web API development. It's a class library with logical separation of Client, Server and the supporting Framework.
Latch is a service that lets you add an extra level of security to your online services to help prevent any unauthorized use.
Enables you to use the Hawk authentication scheme for SignalR connections from .NET client. No server-side modification are required (beside taking care of the order in the OWIN pipeline => not include SignalR prior to the Hawk authentication middleware).
Authentication for Web Develop
Javascript client for accessing secure WebAPI services incl. (social/facebook) authentication
Library provides WCF Rest behaviors extension - EnableCorsBehavior - CustomAuthenticationBehavior - TypedUriTemplateBehavior See more details here: https://github.com/cshandler/WebHttpBehaviorExtensions
Simple OWIN stateful token authentication middleware for when you want to store token in database