It is, but with a sufficiently large number of attempts you can account for jitter. A good summary (with links to existing research) can be found here: http://

It is, but with a sufficiently large number of attempts you can account for jitter. A good summary (with links to existing research) can be found here: http://blog.astrumfutura.com/2010/10/nanosecond-scale-remote-timing-attacks-on-php-applications-time-to-take-them-seriously/ http://blog.astrumfutura.com/2010/10/nanosecond-scale-remote...