8000 Added note about the hash_equals polyfill by wouterj · Pull Request #6044 · symfony/symfony-docs · GitHub
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Added note about the hash_equals polyfill #6044

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Added note about the hash_equals polyfill #6044

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397dbcc
Added note about the polyfill
wouterj Dec 18, 2015
3c971dd
Add versionadded about the polyfill
wouterj Dec 20, 2015
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Added note about the polyfill
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@wouterj
wouterj committed Dec 18, 2015
commit 397dbcc8d6238c28020ef06cfaf93fd7ec50f081
8 changes: 8 additions & 0 deletions cookbook/security/custom_authentication_provider.rst
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Expand Up @@ -289,6 +289,13 @@ the ``PasswordDigest`` header value matches with the user's password.
provider for the given token. In the case of multiple providers, the
authentication manager will then move to the next provider in the list.

.. note::

While the :phpfunction:`hash_equals` function was introduced in PHP 5.6,
you are safe to use it with any PHP version in your Symfony application. In
PHP versions prior to 5.6, `Symfony Polyfill`_ (which is included in
Symfony) will define the function for you.

The Factory
-----------

Expand Down Expand Up @@ -666,3 +673,4 @@ in the factory and consumed or passed to the other classes in the container.
.. _`WSSE`: http://www.xml.com/pub/a/2003/12/17/dive.html
.. _`nonce`: https://en.wikipedia.org/wiki/Cryptographic_nonce
.. _`timing attacks`: https://en.wikipedia.org/wiki/Timing_attack
.. _`Symfony Polyfill`: https://github.com/symfony/polyfill
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