Top 20 NuGet authentication Packages

Includes types that provide support for SecurityTokens, Cryptographic operations: Signing, Verifying Signatures, Encryption.
Includes types that provide support for SamlTokens version 1 and 2.
Includes types that provide support for WsFederation protocol.
Relational entities for the OpenIddict Entity Framework Core stores.
Includes types that provide support for creating, serializing and validating JSON Web Tokens. This is a newer, faster version of System.IdentityModel.Tokens.Jwt that has additional functionality.
Unofficial C# implementation of Firebase authentication targetting .NET Standard. The library provides a drop-in auth solution that handles the flows for signing in users with email addresses and passwords, Identity Provider Sign In including Google, Facebook, GitHub, Twitter, Apple, Microsof...
Abstractions used by Veracity Identity
Official .NET SDK for the Okta Authentication API.
SAML 2.0 (SAML2P) service provider authentication handler. To purchase a license or get a demo license, contact [email protected].
ASP.NET Core middleware that enables an application to receive an OpenID Connect bearer token. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/af22effae4069a5dfb9b0735859de48820104f5b
ASP.NET Core middleware that enables an application to support the OpenID Connect authentication workflow. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/af22effae4069a5dfb9b0735859de48820104f5b
Includes types that provide support for Reading / Writing XML with Enveloped Signatures.
This package contains the binaries of the Microsoft Authentication Library for .NET (MSAL.NET). MSAL.NET makes it easy to obtain tokens from the Microsoft identity platform for developers (formerly Azure AD v2.0) signing-in users with work & school accounts, Microsoft personal accounts, and so...
Official Okta middleware for ASP.NET 4.6.2+. Easily add authentication and authorization to ASP.NET applications.
ASP.NET Core middleware that enables an application to support the SAML2 SSO authentication workflow. This middleware is opensource (free to use) and is not dependent on any .NET Framework libraries. It has been tested with ADFS and IdentityServer4 as well.
A MongoDB IUserAuthRepository to persist User registration and auth info in a NoSQL Mongo DB. Implements ServiceStack's built-in AuthProvider Model: https://docs.servicestack.net/authentication-and-authorization inc. Twitter, Facebook, Basic, Digest, Credentials Auth modes out-of-t...
Adds .NET Framework OAuth2 Providers for use in ServiceStack Web and REST Services. Includes built-in support for Google and LinkedIn OAuth2 providers. More Info on Auth Providers: https://docs.servicestack.net/authentication-and-authorization
Adds OpenId Auth Providers for use in ServiceStack Web and REST Services. Includes built-in support for Google, Yahoo, MyOpenId and Custom OpenId providers. More Info on Auth Providers: https://docs.servicestack.net/authentication-and-authorization
A RavenDB IUserAuthRepository to persist User registration and auth info in a NoSQL Raven DB. Implements ServiceStack's built-in AuthProvider Model: https://docs.servicestack.net/authentication-and-authorization inc. Twitter, Facebook, Basic, Digest, Credentials Auth modes out-of-t...
Helper library for claims based identity & access control in .NET.