The omniauth plugin to support authentication from howtodo.me

The Watson Authentication Handler in Ruby

A Ruby gem for implementing OAuth 2.0 authentication with miniOrange

Add facebook as a grant_type to the authentication done through devise_oauth2_providable

Drop this in your app, and client apps can easily use omniauth with oauth2 to use it as a source for authentication

Send requests to OAuth 2 provider with MAC authentication

A super simple session-based authentication gem, for when you need to add basic admin capability to a single-user Rails app.

It's a combination of devise and CanCan gem and flexible to identify your modules

This gem contains specific implementation of JWT authentication to be used inside of Matic products.

Merb Slice adds quick DB'less OpenID authentication to your app

A mixin for Mongoid document models allowing for publishing them after authentication

A REST client for the UK Companies House API, including authentication

OAuth 2 authentication with Active Directory Federations Services OpenId Connect.

A gem providing HMAC based authentication for HTTP

The goal of this gem is to provide token-based authentication for Rails (or Rails-like) web applications.

authentication mechanism based on SSH keys

A Gem for simplifying OpenId Authentication

LondonCab Authentication Client

add authentication to your website - in 1 minute or less.

Manages collecting of facebook authentication and provides helpers. It uses koala and is built for Rails 3.