Re: Re: Do you trim() usernames and passwords?
| From: | Paul M Foster | Date: | Thu, 30 Dec 2010 16:15:22 +0000 |
| Subject: | Re: Re: Do you trim() usernames and passwords? | ||
| References: | 1 2 3 4 5 6 7 8 9 10 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-310390@lists.php.net to get a copy of this message | ||
On Wed, Dec 29, 2010 at 06:52:28PM -0500, TR Shaw wrote:
[snip]
>
> So now lets look at the case where there is malware on your machine
> which will try to brute force your computationally hard password and
> is smart enough to use your graphics engine to increased computational
> power. Folks at MIT and Carnegie Mellon have already numerically
> proved that a 12 character password is not crackable using brute force
> in any reasonable timeframe. In fact an 8 character one has strength
> of years. I would contend that using that much power will make its
> existence known to you and coupled with the fact that you restart your
> computer every now and again and that you run an antivirus
> periodically that will eventually find it even if you don't notice the
> slow down.
Partially for this reason, I have a CPU meter on my desktop. If I see
the CPU usage climb oddly (and I have), I start checking what processes
are eating my CPU. This is one reason I don't keep my Facebook page open
all the time. It periodically sucks CPU. For some reason, Javascript
seems to chew CPU harder than almost anything else I run.
Paul
--
Paul M. Foster
http://noferblatz.com