Delicious HMAC Digest(if) authentication and AES-128-CBC encryption

Rails-API authentication solution based on JWT and inspired by Devise.

OpenID authentication module for Devise using Rack::OpenID

basic helpers and authentication methods for using warden with padrino also providing some hooks into Rack::Flash

Proof provides an easy-to-use JWT-based authentication system.

Allows applications using Train to speak to AWS; handles authentication, cacheing, and SDK dependency management.

Support authentication via OAuth2 tokens dispensed from the Doorkeeper authorization flow

Authentication plugin for the Trestle admin framework

simple FreshBooks API wrapper. supports both OAuth and API token authentication

Rack middleware that provides authentication based on JSON Web Tokens.

Provides all the protocol you need in order to do authentication on your rack application. The implementation specifics can be found in http://github.com/cyx/shield-contrib

PG::AWS_RDS_IAM is a plugin for the pg gem that adds support for IAM authentication when connecting to PostgreSQL databases hosted in Amazon RDS.

ActiveGraph integration with the Devise authentication framework

Neo4j integration with the Devise authentication framework

Devise based user authentication for AlchemyCMS.

A gem providing Rails with authentication, Facebook Connect, MadMimi, and DelayedJob support

A library for generating signed authentication tokens for use with Firebase. Uses your app secret.

dm-devise adds DataMapper support to devise (http://github.com/plataformatec/devise) for authentication support for Rails

minimalistic authentication

A streamlined, production-focused toolkit for building MCP servers in Rails applications. Provides essential base classes, authentication gateways, and HTTP transport with minimal dependencies.