Top 20 NuGet security Packages

OpenID Connect server middleware for OWIN/Katana.
Library of ASP.NET web forms extensions, embedded resource hosting and HTTP Module for implementing role-based security.
MimeKit is an Open Source library for creating and parsing MIME, S/MIME and PGP messages on desktop and mobile platforms. It also supports parsing of Unix mbox files. Unlike any other .NET MIME parser, MimeKit's parser does not need to parse string input nor does it use a TextReader. Instead,...
MailKit is an Open Source cross-platform .NET mail-client library that is based on MimeKit and optimized for mobile devices. Features include: * SASL Authentication via SCRAM-SHA-256, SCRAM-SHA-1, NTLM, DIGEST-MD5, CRAM-MD5, LOGIN, PLAIN, and XOAUTH2. * A fully-cancellable SmtpClient with support f...
OAuth2 introspection middleware for ASP.NET Core.
ASP.NET Core middleware that enables an application to support basic authentication.
OpenID Connect & OAuth 2.0 client library
OpenID Connect and OAuth 2.0 Framework for ASP.NET Core
EntityFramework persistence layer for IdentityServer4
OpenID Connect server middleware for ASP.NET Core.
OpenID Connect extensions for the OpenID Connect server middleware.
BouncyCastle portable version with support for .NET 4, .NET Standard 1.0-2.0, .NET Core
Library of core security framework for implementing role-based security with integrated Active Directory, local account and database style authentication across various .NET application types.
Library of base Windows Form and WPF Window extensions and dialogs, including those needed for implementing role-based security inside a Windows application.
OpenID Connect extensions for the OpenID Connect server middleware.
EntityFramework persistence layer for IdentityServer4
ASP.NET Core Identity Integration for IdentityServer4
Cleans HTML from constructs that can be used for cross site scripting (XSS)
PCL Crypto provides a consistent, portable set of crypto APIs for .NET 4.5, Windows Phone 8.0 SL & 8.1 Xaml, Windows Store, Xamarin.iOS, Xamarin.Android. This makes it easier to create cross-platform .NET libraries and apps. Crypto functionality includes asymmetric and symmetric encryption and signa...
OAuth2 validation middleware for ASP.NET Core.