This gem builds the AWS authentication signature as described in http://docs.aws.amazon.com/AmazonS3/latest/dev/RESTAuthentication.html. It requires the Amazon keys, as well as options about the request (request type, resource, etc).

A portable, pluggable authentication and authorization service.

Forked from ryanb's nifty-generators .A collection of useful Rails generator scripts for scaffolding, layout files, authentication, and more.

Simple authentication against Atlassian Crowd

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

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

A Devise plugin for exposing multiple authentication providers via omniauth.

Devise::Capturable is a gem that makes it possible to use the Janrain Engage user registration widget, while preserving your Devise authentication setup with your custom user model.

OTP authentication for Devise

Authentication strategy for devise based on headers, passed by Oracle Access Manager.

For authenticating against PAM (Pluggable Authentication Modules)

Helps to integrate Duo Security's 2-factor authentication with Devise in a seamless way.

If you like to use Devise, but wish it had an easy token authentication system that handles a user logging in from multiple devices, DeviseMultipleTokenAuth is for you.

Interacts with the ruby-jira gem to provide authentication of a login against a JIRA system.

JWT-Based authentication and authorization with Zaikio.

Authentication with OmniAuth, API integration

A DataMapper plugin for adding authentication and encrypted passwords to your DataMapper models.

Kerberos authentication for AuthLogic

Client library for the Central Authentication Service (CAS) protocol. (this version specially prepared for echologic)

Add the GSS-SPNEGO authentication mechanism in net-ldap gem