Tools for timing attacks.
- Have at least Python 2.7
installed (older versions might work, but haven't been tested). For other
Python versions, please change the
Makefile
. - Have SWIG installed. Read more about SWIG here.
- The
python-dev
package is required to build the Python module fromfau_timer.c
.
Clone this repository and open a terminal.
Unix:
$ make linux
Mac OS X:
$ make osx
$ python runme.py
Look at runme.py
to learn about the usage of the library.
Disable Intel Speedstep in your machine's BIOS or use the cpufreq
utilities.
Beside the frequency of your CPU, there are some "sleep-states" c-states to save power. The clock is stopped for a short period of time if the CPU is idle. Consequently, CPU ticks have different time durations.
On Ubuntu Linux machines, you can disable this feature by adding idle=poll
to
the kernel parameters.
Binary safeness of responses: the usage of the function get_response()
is somehow contraintuitive. Look at runme.py
to see how to use it.