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newaetech / chipwhisperer-jupyter

Interactive ChipWhisperer tutorials using Jupyter notebooks.
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PA_SPA_1: Fix checkpass function #11

Closed jbech-linaro closed 3 years ago

jbech-linaro commented 4 years ago

Seems like there is a mixup when it comes to less than and greater than in the "Attacking a Single Letter" example. For example for "CW303" and "CWLITEXMEGA" there is a comparison like this

   return trace[73 + 40 * i] > -0.3

Since we are interested in (negative) peaks in that case we should use a less than sign instead of greater than.

After doing the changes in this patch I've been able to successfully run the example in Jupyter using Chipwhisperer-Lite ("CW303", "CWLITEXMEGA").

Since I believe it's wrong for "CWNANO" as well as for "CWLITEARM" and "CW308_STM32F3" I've made similar changes.

Signed-off-by: Joakim Bech joakim.bech@linaro.org

alex-dewar commented 3 years ago

Closing, as this tutorial no longer exists in this form.