[Phpmyadmin-devel] speed improvement in auth_type cookie!

Hi, after some profiling (thanks to Garvin for the hint about xdebug), I found that using a blowfish encryption coded in php was taking about 70-80% of the execution time every time we encrypt or decrypt. And since we have the security feature of adding the current time to username and password cookie (which makes a stolen cookie useless after LoginCookieValidity seconds), we encrypt and decrypt on each click!

Thanks to Michal for the suggestion of using mcrypt. It's now used instead of blowfish.php (if available), producing dramatic speed improvements.

I will add in the doc a strong suggestion to use this library.

Meanwhile, please test :)

Marc