Zimbra authentication strategy for OmniAuth

OpenAM authentication for Errbit

A user authentication system built on SSH's key

Passwd is provide hashed password creation and authentication.

Calls any Phish.net API method. Supports authentication. Parses 'setlistdata' fields.

Token-based authentication for your Rails API.

A Ruby gem for simplifying random password generation, password strength testing, password hashing and salting, and password-hash authentication.

A Chef cookbook cookbook to download files over HTTPS using TLS client certificate authentication.

Client to microservice proxy authentication

Rack middleware for authentication using CAS and/or token

Rack middleware for authentication using JSON Web Tokens using the jwt_claims and json_web_token gems.

A modular implementation of Rack Auth

rack-auth-ldap : provide LDAP authentication for Rack middelware

A warden/sinatra mini-app providing authentication and user management for any rack-based framework.

Rack Middleware for OAuth Authorization and Authentication via/twitter