New in Symfony 2.2: Security Utilities
December 19, 2012
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Published by
Fabien Potencier
Warning: This post is about an unsupported Symfony version. Some of this information may be out of date. Read the most recent Symfony Docs.
Contributed by
Fabien Potencier
in #4763.
As of Symfony 2.2, we have refactored some security utilities so that you can
use them in your own code. These utilities are available in the
Symfony namespace.
Generating a secure Random Number
If you need to generate a secure random number, you'd better rely on a strong implementation. Symfony provides one:
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use Symfony\Component\Security\Core\Util\SecureRandom;
$generator = new SecureRandom();
$random = $generator->nextBytes(10);The nextBytes() methods returns a random string composed of the number of
characters passed as an argument (10 in the above example).
Comparing Strings
Timing attacks are not that well-known, but still, Symfony has protection for them. In Symfony 2.0 and 2.1, this protection was applied to password comparisons done in the Security bundle, but as of Symfony 2.2, it is also available to the developer:
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use Symfony\Component\Security\Core\Util\StringUtils;
// is password1 equals to password2?
$bool = StringUtils::equals($password1, $password2);Want to learn more? Have a look at the dedicated documentation.
Help the Symfony project!
As with any Open-Source project, contributing code or documentation is the most common way to help, but we also have a wide range of sponsoring opportunities.
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