The DceLti engine simplifies integrating LTI authentication for Rails apps via the IMS::LTI gem.

Rack compatible user authentication microservice. Can be run standalone or mounted into another rack app.

simple-login creates a basic and simple login system for Rails 3 apps. It is based on Railscasts Authentication from Scratch videos. Usage: create your rails app, then add this gem to your Gemfile. Finally, just type 'rails g simple_login'. All these routes are available: signup_path, login_path,...

A kind of Rack-Rscript web server which facilitates static files, cookie based authentication, and private pages.

GraphAPI is a Ruby Gem created to simplifiy and help manage authentication using the Facebook Graph API.

Simple authentication against Atlassian Crowd

Authentication for TINYoctopus, include access_token management

This gem allows you to share a central database and using authlogic stores and retrieves passwords

Simple authorization system for Rails applications. Allows you to develop applications with a mixed role based authorization and a context based authorization model. Does not supply authentication.

Library for create basic SSO Server based on OAUTH authentication for simplify deployment.

EmpireAvenue.com authentication handler for OmniAuth

CAS Authentication via Rack Middleware

capcoauth-gem is a library to integrate Rails applications with Capcoauth authentication service

A wrapper for the Globo.com's authentication/authorization API

Gitkite is the Rails authentication engine for Google Identity Toolkit (gitkit). It provides all the endpoints and views necessary for gitkit.

A light weight Firebase access token validator whichutilizes HTTP caching to reduce network traffic whenvalidating against Google's X509 Certificates.

Simple authentication solution for any rails app.

SHA1 Hashkey based authentication for simple API engine

Basic authentication library for Rack applications.

rack-auth-gitlabapi : provide GitLab API authentication for Rack middleware