Changes

Tutorial A5-Bonus Breaking AES-256 Bootloader

389 bytes added, 22:02, 22 June 2016

Added brainstorm for IV attack

= Attacking the IV =

Steps:

* Investigation

** Look at bootloader code

** Move trigger

** Record 1

** Show different instructions in trace

* Making the attack feasible

** Capture a bunch (500?)

** Apply decryption

** Look at one bit

** Find means + plot

** Find differences + plot

* Automating the attack

** Finding the attack points

** Getting a single bit

** Building the IV bytes

* Full script in appendix

Example:

Approved_users

510

edits