When to use what leakage model?

[c64]

Hi,

First off, I’m very new to SCAs. I’m just wondering if someone could guide me to documentation/papers etc. on what power leakage models that are most favorable to use in different scenarios (in particular those that are implemented in the CW software).

[jpthibault]

Good timing, this is answered in another thread
You’ll also find more threads on the subject by searching this forum for “model”.

Changes in AES c code to make HD model work

Hey Collin, I was running the built-in CPA attack on AES 128 using chipwhisperer 4.0.2 on the XMEGA target, It exposed the key with the default power model (HW). However, changing to HD didn’t succeed to expose the key (still the built in implementation with the only change: leak_model = AES128_8bit( SBoxInOutDiff ) I am trying to make modifications in the C code of the aes implementation in the SubByte step in order to make the HD model to work successfully. I saw in your folders different …