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Diffstat (limited to 'user_guide_src/source/libraries')
| -rw-r--r-- | user_guide_src/source/libraries/security.rst | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/user_guide_src/source/libraries/security.rst b/user_guide_src/source/libraries/security.rst index c8d69d16f..0c51e342b 100644 --- a/user_guide_src/source/libraries/security.rst +++ b/user_guide_src/source/libraries/security.rst @@ -163,4 +163,19 @@ Class Reference This method acts a lot like PHP's own native ``html_entity_decode()`` function in ENT_COMPAT mode, only it tries to detect HTML entities that don't end in a semicolon because some browsers allow that. - If the ``$charset`` parameter is left empty, then your configured ``$config['charset']`` value will be used.
\ No newline at end of file + If the ``$charset`` parameter is left empty, then your configured ``$config['charset']`` value will be used. + + .. method:: get_random_bytes($length) + + :param int $length: Output length + :returns: A binary stream of random bytes or FALSE on failure + :rtype: string + + A convenience method for getting proper random bytes via ``mcrypt_create_iv()``, + ``/dev/urandom`` or ``openssl_random_pseudo_bytes()`` (in that order), if one + of them is available. + + Used for generating CSRF and XSS tokens. + + .. note:: The output is NOT guaranteed to be cryptographically secure, + just the best attempt at that.
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