Rails3 engine that adds OAuth2 Provider support to any application built with Devise authentication

A gem providing HMAC based authentication for HTTP

A convenient, unofficial Ruby SDK for integrating with the EuPago payment gateway. Includes authentication helpers, VCR-based test suite, and a structure SDK.

omniauth-azure-ad uses 'Peerialism authentication HUB' web site that manages token exchanges with the Azure ACS, encryption etc.

Rails3 engine that adds OAuth2 Provider support to any application built with Devise authentication

A full featured wrapper for interacting with the base Google Data API, including authentication and basic object handling

Flexible authentication solution for Rails with Warden

Flexible authentication solution for Rails with Warden

SHA1 Hashkey based authentication for simple API engine

Provides single sign-on authentication for web applications using the CAS protocol.

A comprehensive Ruby client library for JPS platform APIs with 69+ API modules, modular loading, OAuth authentication, and optimized performance

An implementation of DIBS Message authentication code. Has correct sorting and rules for which params to include. So far it only includes the params for DIBS Payment Window.

Basic authentication library for Rack applications.

Provides single sign-on authentication for web applications using the CAS protocol. Modified to run on read only file systems.

A Rails Engine providing passwordless magic link authentication with opt-in impersonation and multi-tenancy modules.

Tokenzen is a lightweight, model-agnostic authentication toolkit for Rails. It provides secure, polymorphic access token management for any ActiveRecord model with configurable expiration, AES-256 encryption, login, logout, and refresh token rotation.

Ruby wrapper for the BitBucket API supporting OAuth and Basic Authentication

Implements Auth0's setup for authentication/authorization along with setting a current_user method.

Couchbase backend for the Sorcery authentication framework

A Refinery CMS and activeadmin connector