Passwords save/load in ~/.auth_keys(plain text table)

Lightweight authentication for OmniAuth

Auth for your Rails application

The AuthLane Sinatra Extension allows simple User authentication with support for different User roles. It comes with Sinatra helpers for easy integration into routes.

Official Ruby SDK for Authlete API v3+

Atlassian Crowd support for Authlogic

Single Sign-On implementation based on HMAC.

"Authenticate developpers and applications."

you can authenticate a user this gem

An incredibly bare bones authentication library

The rails integration for authn

A many-stop shop for authentication.

HTTP request signing and validation library with support for header signing and multiple backends.

Quickly create ebooks using Markdown

AuthoRails is a framework for generating authorizations,tables,relations,scaffolds and privileges.

Authorize without false negatives.

Create arcade style games quickly and easily

Converted plugin to gem which will work with association as well.

Deprecated in favor of indieweb-endpoints from 2019-04-24. Discover a URL’s authorization endpoint for use with Micropub and IndieAuth clients.

Parses parametrized HTTP Authorization headers