Top 20 NuGet Security Packages

OpenID Connect server components for OpenIddict.
OpenIddict's abstractions.
This framework provides pluggable Authentication Module in MVC
Skybrud.Social is a framework in .NET for integration with various social services like Twitter, Facebook and Instagram. The framework will handle all the technical parts and API communication so you don't have to.
Managed .NET wrapper for unmanaged PKCS#11 libraries
A .NET Core middleware for injecting the Owasp recommended HTTP Headers for increased security
This package contains an OWIN middleware to validate signed http requests with the Medidata MAuth protocol. The middleware communicates with an MAuth server in order to confirm the validity of the request authentication header. Include this package in your OWIN-enabled web api if you want to authent...
Enable SAML v2.0 SSO for identity provider (IdP) and service provider (SP) ASP.NET Core applications. Includes SAML authentication middleware support. Example ASP.NET Core projects are available that demonstrate the simple to use SAML API and accompanying SAML configuration. Comprehensive document...
OpenID Connect primitives for the OpenID Connect server middleware.
This package contains an ASP.NET Core middleware to validate signed http requests with the Medidata MAuth protocol. The middleware communicates with an MAuth server in order to confirm the validity of the request authentication header. Include this package in your ASP.NET Core web api if you want to...
Library with authentication models implementations
Google authentication handling across Xamarin.iOS and Xamarin.Android
A CAS client for asp.net core
A forms authentication provider for Nancy.
Owin Middleware for GDEP's OAuth 2.0
Middleware for adding security headers to an ASP.NET Core application. Allows you to easily add Content Security Policy, Strict Transport Security, and Public Key Pins to an app.
SecureBlackbox - the comprehensive suite of components and classes for digital security and secure networking. NOTE: this package contains only libraries. For samples and documentation, please, download the full package from the product web site.
tCell .Net Agent Packages\nThis package bundles the packages.config file to enable packages discovery.
.NET and Xamarin libraries for the AeroGear Mobile Core
An activity based security framework for ASP.NET MVC