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Tutorial A5 Breaking AES-256 Bootloader

No change in size, 17:30, 21 June 2016
13th Round Key
== 13th Round Key ==
Unfortunately, we cannot use the GUI to attack the 13th round key. The system has no built-in model for round 13 of the AES-256 algorithm. Instead, we can write our own script and insert a custom model into the system. See [[#Appendix BD: AES-256 14th 13th Round Key Script]] for complete script used here.
The ChipWhisperer Analyzer software uses the settings in the GUI to automatically adjust an attack script. Every time you change a setting in the GUI, the autogenerated script is overwritten. Fpr example, the point range is mapped directly to an API call:

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