php-symfony-security-csrf - 4.4.19+dfsg-2+deb11u6 main

The Symfony Security Component - CSRF Library provides a class
`CsrfTokenManager` for generating and validating CSRF (cross-site
request forgery) tokens.
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The Security Component makes it possible to easily separate
authorization logic from user providers that hold the users credentials.
It ships with facilities for authenticating using HTTP basic or digest
authentication, interactive form login or X.509 certificate login.
Furthermore it optionally also allows an application to implement its
own authentication strategies.
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Symfony is a PHP framework, a set of tools and a development methodology.