Clearance is built to support authentication and authorization via an email/password sign-in mechanism in applications. It provides some core classes commonly used for these features, along with some opinionated defaults - but is intended to be easy to override.

Rodauth is Ruby's most advanced authentication framework, designed to work in all rack applications. It's built using Roda and Sequel, but it can be used as middleware in front of web applications that use other web frameworks and database libraries. Rodauth aims to provide strong security for password storage by utilizing separate database accounts if possible on PostgreSQL, MySQL, and Microsoft SQL Server. Configuration is done via a DSL that makes it easy to override any part of the authentication process. Rodauth supports typical authentication features: such as login and logout, changing logins and passwords, and creating, verifying, unlocking, and resetting passwords for accounts. Rodauth also supports many advanced authentication features: * Secure password storage using security definer database functions * Multiple primary multifactor authentication methods (WebAuthn and TOTP), as well as backup multifactor authentication methods (SMS and recovery codes). * Passwordless authentication using email links and WebAuthn authenticators. * Both standard HTML form and JSON API support for all features.

Enables Devise to hash passwords with Argon2id

HTAuth provides an API and commandline tools for managing Apache/httpd style htpasswd and htdigest files.

Provides functionality to store a hash digest of an attribute using Argon2

Tachiban provides simple password hashing for user authentication with Argon2 for Hanami web applications.

Aikotoba is a Rails engine that makes it easy to implement simple email and password authentication.

Drop-in replacement for has_secure_password that uses argon2