DFA

Usage

Faulting multiple times the binary requires many disk writes so we'll do it in a tmpfs.
All steps are performed by mount_tmp_and_attack.sh:

mkdir -p tmp
mount|grep -q $(pwd)/tmp || sudo mount -t tmpfs -o mode=01777,size=50m tmpfs tmp
cp attack_seccon2016.py ../../deadpool_dfa.py ../../../JeanGrey/phoenixAES.py tmp
cp ../target/main ../target/libnative-lib.so tmp
cp ../target/libnative-lib.so tmp/libnative-lib.so.gold
cd tmp
./attack_seccon2016.py

Adapt it to your setup if needed. It requires deadpool_dfa.py from this repository and phoenixAES.py from JeanGrey repository.

Result is the last round key, so to roll back key scheduling up to initial AES key, one can e.g. use aes_keyschedule from Stark project.

aes_keyschedule 040D08DA68001026F3DC0D68897148B4 10
K00: 6C2893F21B6185E8567238CB78184945