Simple authentication for Rails

Simple Google authentication.

Rack authentication middleware

This generators provide you to easily setup your Rails 3 application, create authentication, messages, admin style scaffolding and many more

Simple HTTP proxy which adds Conjur authentication headers

Rack webmoney authentication

An authentication and service location service.

SimpleAuth HMAC authentication

Rack Middleware for OAuth Authorization and Authentication via/twitter

Allows Ruby on Rails applications to easily integrate to federated authentication sources particuarly those served by Shibboleth service providers.

BitAuth is a way to do secure, passwordless authentication proposed by Bitpay using the same elliptic-curve cryptography as Bitcoin

A Ruby gem that provides OAuth 2.0 authentication and API client functionality for TradeStation's trading platform. Supports both production and sandbox environments.

A ruby gem for the SQRL authentication system described by Steve Gibson of GRC.com

OAuth Echo authentication by a rack middleware

a Rack module for testing NTLM Authentication in an HTTP client

Fernet rack authentication middleware

A warden/sinatra mini-app providing authentication and user management for any rack-based framework.

JWT-based token authentication middleware for Rack.

A ruby wrapper for version 3 of the bit.ly API Supports Login/ApiKey & OAuth authentication

rack-auth-ldap : provide LDAP authentication for Rack middelware