Create a Rails app with authentication, authorization using Devise and CanCan

A devise omniauth adapter for Rails apps, using Columbia University authentication.

Use Kong OAuth2 Authentication with Grape.

bridge for supporting multiple google authentication libraries

Authentication layer for OmniAuth

A gem that provides authentication by JWT(json web token) with faye.

Allow authentication via an application token

Rails plugin for simple Facebook session authentication

A simple rails engine to implement authentication using Facial recognition system

Email based authentication with mobile devices

EdgeAuth is an authentication solution

Perform 2-factor authentication using duosecurity.com

Use session objects for token authentication

Devise extension to allow authentication via Stormpath

PKCS #12 authentication for Devise.

Time Based OTP/rfc6238 compatible authentication for Devise with Devise 4.2 and Rails 5 compatibility. Drop-in replacement for devise-otp.

Devise PostgreSQL authentication module

Devise extension to allow authentication to multiple LDAP servers, or with multiple configurations to the same LDAP server. Fork of the devise_ldap_authenticatable project.

add OAuth2 authentication to rails3 application

Extension to devise to allow authentication with Archangel