I gathered 10k traces at 1GS/s and 200ksamples (zoomed in for first two rounds) using asynchronous sampling. I decimated them to shorten the sample amount. I see that the traces are out of sync, yet they give some result. I was thinking, maybe the result could be better when I resync the traces?
The first trace looks like this
Five different traces look like this
The result of the attack is following:
What setup would be the best to make the traces even for the analysis? I tried resyncing using SAD, but it almostly deletes every other trace than the reference trace…
import chipwhisperer.analyzer as cwa
resync_traces = cwa.preprocessing.ResyncSAD(project)
resync_traces.ref_trace = 0
resync_traces.target_window = (3000, 15000)
resync_traces.max_shift = 1500
resync_analyzer = resync_traces.preprocess()
The time warp gives me an error:
IndexError: list index out of range
Is there any help for such jittery traces?