you can authenticate a user this gem

An incredibly bare bones authentication library

The plugin library for AuthN and Rails

AuthNetReceiver is an endpoint and processor for Authorize.Net Silent Post transactions

The rails integration for authn

A many-stop shop for authentication.

HTTP request signing and validation library with support for header signing and multipl...

Flexible authentication solution for Rails

Quickly create ebooks using Markdown

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

Authorize without false negatives.

Create arcade style games quickly and easily

A powerful, modern authorization plugin for Ruby on Rails featu...

Auth Origin Control checks the origin of the request at app entry

Rails engine to add IndieAuth authentication endpoint functionality

A description of a really simple authorization plugin for Rails.

A command line OAuth authorization tool.

Authority helps you authorize actions in your Rails app. It's ORM-neutral and has very ...

Authentication engine for AIHS

A gem for rails giving vast flexibility in authorization management.

Rails 3 compatible rails-authorization-plugin gem

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 authorizati...

Parses parametrized HTTP Authorization headers

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

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

Rails 3 compatible rails-authorization-plugin gem

A plugin for authorization in a ReSTful application.

Client provider library for the authorization service

Authorize implements a full-blown Role-based Access Control (RBAC) system for Ruby on R...