The Security Component

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The Security component provides a complete security system for your web application. It ships with facilities for authenticating using HTTP basic or digest authentication, interactive form login or X.509 certificate login, but also allows you to implement your own authentication strategies. Furthermore, the component provides ways to authorize authenticated users based on their roles, and it contains an advanced ACL system.

Installation

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        $ composer require symfony/security
    

Alternatively, you can clone the https://github.com/symfony/security repository.

Note

If you install this component outside of a Symfony application, you must require the vendor/autoload.php file in your code to enable the class autoloading mechanism provided by Composer. Read this article for more details.

The Security component is divided into four smaller sub-components which can be used separately:

symfony/security-core: It provides all the common security features, from authentication to authorization and from encoding passwords to loading users.
symfony/security-http: It integrates the core sub-component with the HTTP protocol to handle HTTP requests and responses.
symfony/security-csrf: It provides protection against CSRF attacks.
symfony/security-acl: It provides a fine grained permissions mechanism based on Access Control Lists.

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This work, including the code samples, is licensed under a Creative Commons BY-SA 3.0 license.

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