I have just found your product chipwhisper and it is truly impressive. I do not have the budget to purchase this equipment or I would love to do the research to see if OpenPGP Smartcard will leak secret key information.
Thanks for the idea - I hadn’t seen those before, so will read up on them a little and order one to play with! Lots of projects on-going still so might take a little while before I get into the details, but will see what I can find…
ask, because during measurments in the SAKURA-G board at the amplifier output, the signals has a component at 48 MHz, that is expected, but have another component, even stronger that the leader of about 4-5 MHz.
I verified it with two different algorithms running on the FPGA and the result was the same.
What is the reason of the existence of this frequency component ?