CAS Authentication via Rack Middleware

Bind vkontakte authentication to your authlogic project

Integrates devise authentication with iOS

Ruby on Rails 7 Authentication and User Management Engine using Devise with a nice-looking dashboard, admin panel and login views to get you going fast on your next project.

JWT Token Authenticationt

jwt-bouncer is an abstraction for JWT-based authentication/authorisation

Json Web Token Authentication for devise users. It can be use for APIs.

Merb authentication gem

A gem providing HMAC based authentication for HTTP. This is the DNC Labs fork.

Roles Management interface for virtually every backend, mostly like OmniAuth for authentication

A wrapper around Ruby's net-ldap library to ease authentication and record finding

A clean, simple, and unobtrusive ruby authentication solution.

A gem for Autodesk 2-phase authentication service.

EmpireAvenue.com authentication handler for OmniAuth

A flexible authentication and authorization framework for Rack applications.

Simple HTTP proxy which adds authentication headers from Conjur"

Bluepages Authentication for IBMers within IBM's Intranet

Re-usable Devise-based authentication mountable engine

A gem for Autodesk 2-phase authentication service.

Authentication engine.