Top 20 NuGet Security Packages

NWebsec middleware for ASP.NET Core applications. NWebsec helps you set important security headers and detect potentially dangerous redirects. See project website for documentation.
OpenID Connect server middleware for OWIN/Katana.
ASP.NET Core authentication middleware for OpenID 2.0 providers.
Crypteron Security Framework Core Library shared by CipherDB, CipherStor, CipherObject and other products.
Includes types that provide support for Reading / Writing XML with Enveloped Signatures.
NWebsec attributes for ASP.NET MVC 5 applications. NWebsec helps you set important security headers, detect potentially dangerous redirects, control cache headers, and remove version headers. See project website for documentation.
This library provides shared functionality for the NWebsec ASP.NET security libraries.
A set of e-mail components which implement IMAP, SMTP, POP3, Exchange Web Services, SSL/TLS support, parsing and building MIME and S/MIME messages, Outlook .MSG and .PST conversions, mail merge over database, OAuth 2.0, DNS MX lookup, e-mail address validation, parsing winmail.dat, bounced messages ...
A fixed, enhanced and namespace compatible version of BCrypt.Net port of jBCrypt implemented in C#. It uses a variant of the Blowfish encryption algorithm’s keying schedule, and introduces a work factor, which allows you to determine how expensive the hash function will be, allowing the algorithm to...
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.
Adds additional OAuth providers for OWIN to use with ASP.NET
OpenIddict's abstractions.
OAuth2 introspection middleware for OWIN/Katana.
Google authentication handling across Xamarin.iOS and Xamarin.Android
The SecurityProvider for DWKit. DWKit is a .NET Core BPM system made with simplicity and flexibility in mind. DWKit allows you to model, automate and execute mission-critical business processes.
Dapplo.CaliburnMicro.Security brings security to Dapplo.CaliburnMicro
This adds Active Directory group permissions to Dapplo.CaliburnMicro based applications
Best.EntLib Security lib for .NET Core and .NET 4.6+
OAuth2 introspection middleware for ASP.NET Core.