I would like to ask if there are other pre-processing methods in ChipWhisperer Analyzer(V3.5.1) besides Add Noise, Decimation, Digital Filter and Normalize?
At present, when we are trying to attack a group of hardware AES algorithm keys by CPA, we cannot find the location of AES operation in the captured waveform. It is estimated that the chip has taken protective measures, but we still cannot find the location of AES operation by using several pre-processing methods provided by the ChipWhisperer Analyzer. Therefore, we would like to ask if there are any other pre-processing methods？
The attached figure trace1 is the waveform which has been Digital Filter pre-processed of the original waveform. Could you please help to see where the AES operation is located?
I can select what data to send to the AES module, I know that there is a chip AES operation process in the captured waveform, and there are at least three rounds of AES operation, but I don’t know the specific location, and this AES operation has no result output, could you give me some other suggestions?