Add simple admin authentication to any Rails application, using Google Apps for authentication.

Faraday middleware to automatically negotiate authentication with Build Service instances. It can handle: No, Basic, and, Signature authentication.

Use HTTP Basic Authentication for login and IMPLICIT registration!

This plugin for Rails allows several web apps in an authentication domain to share session state, facilitating single sign-on in a distributed web app. It only provides session sharing and does not concern itself with authentication or replication of the user database.

Duo Universal Rails gem allows a webb developer to quickly add Duo's interactive, self-service, two-factor authentication to any Ruby on Rails web authentication form.

A pure Rails authentication solution. Inspired by devise, but with a pure Rails implementation.

Delegated Authentication protocol developer strategy for Omniauth

Middleware for handling Bearer type Authentication

MiniAuth is a pragmatic authentication gem for Rails that is inspired by Laravel's guards pattern that provides highly customizable and simple authentication for your web applications and APIs.

Ruby gem to handle the HTTP Token Access Authentication draft specification, for securing HTTP-based service and microservice architectures using token credentials. It supports both parsing and building a HTTP "Authentication" request header and a "WWW-Authenticate" response header using the toke...

This Vagrant plugin allows user to define box urls that use HTTP Basic Authentication

Token authentication using JSON Web Token for Rails with Devise.

IAuthU provides a basic iTunes U authentication server, along with libraries for building iTunes U authentication servers into your own application.

A rails engine for email and password based account authentication.

Gemified restful_open_id_authentication plugin

A thin wrapper around the Rails `flash' object to assist in redirecting the user `back' after authentication.

Authentication solution for RoR that focusses on a flexible setup for multiple authentication strategies.

Generates Rails code for an authentication system and persistent cookie management.

avdt_ldap is a simple LDAP authentication library for user authentication on multiple LDAP directories

Passwordless multi-factor authentication. Unlike password-based solutions that require you to remember just another PIN or password, sezame is a secure and simple multi-factor authentication solution. You only need the username and your fingerprint on your smartphone to log into any sezame-enabl...