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

A comprehensive Ruby gem for integrating with Airwallex's global payment infrastructure, including payment acceptance, payouts, foreign exchange (FX rates, quotes, conversions), and multi-currency balance management. Features automatic authentication, idempotency guarantees, webhook verification,...

Ruby OpenID Test Server (ROTS) provides a basic OpenID server made in top of the Rack gem. With this small server, you can make dummy OpenID request for testing purposes, the success of the response will depend on a parameter given on the URL of the authentication request.

Authentication solution for Rails APIs.

Use session objects for token authentication

Devise extension to allow authentication via Stormpath

A Ruby middleware implementation for the L402 protocol, leveraging macaroons and the Lightning Network for secure authentication and payments.

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

JAuth is a Ruby gem for handling user authentication in Ruby applications.

Simple Rails integration for authentication through Amazon Cognito IdP (User Pools)

Securial is a mountable Rails engine that provides robust, extensible authentication and access control for Rails applications. It supports JWT, API tokens, session-based auth, and is designed for easy integration with modern web and mobile apps.

Extension to devise to allow authentication with Archangel

Simple admin function for Rails authentication.