How to compile

You need a C++ compiler capable of C++11. If you're using g++, the compilation step may look like: g++ -std=c++11 main.cpp utils.cpp dca.cpp -O2 -o dca for the original DCA attack or g++ -std=c++11 main.cpp utils.cpp dca_new.cpp -O2 -o dca-new for the updated DCA attack.

Usage

1. Use existing tools like the trace_it.py script and daredevil from the SideChannelMarvels to obtain software execution traces (you need the .input and .trace files)
2. if you're interesting in persistent stored output data, create a directory called graph_out.
3. run ./dca[-new] <tracename.trace> <tracename.input> <number of traces> <byte>
4. after the run, you'll find the corresponding output data in graph_out/
5. now you can process these data files using the gnuplot-scripts that can be found in the gnuplot/ folder. You have to modify them by yourself to match the correct file names for input and output (and maybe you would like to limit the range etc.)

References

You may want to have a look at https://eprint.iacr.org/2018/301.pdf to see the generated traces in action.