note 101992 added to function.mcrypt-encrypt
| From: | Adrien at osu1 dot php dot net | Date: | Fri, 21 Jan 2011 21:07:56 +0000 |
| Subject: | note 101992 added to function.mcrypt-encrypt | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-175981@lists.php.net to get a copy of this message | ||
The previous comment by anonymous is true but instead of increasing the password length, it is a
better idea to use a Key derivation function to generate a key from a password. It adds a lot of
entropy to your key without impacting your users (that will do something dumb in reaction)
You could use pbkdf2, I saw an implementation given in comments here : http://php.net/manual/en/function.hash-hmac.php
Not tried it yet, we are using sha256 instead.
You can then compare the hashed password to the hashed password in your database.
Hope it helps.
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Manual Page -- http://www.php.net/manual/en/function.mcrypt-encrypt.php
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