The fault in our DES

Published date : 6. Mai 2020 23:44
Our engineer did a differential fautl analysis on a smart card - or rather he began the attack.
He went on vacation before the data analysis, so now it's your task, first year intern.

We'll give you the plaintext, the ciphertext, and 32 faulted ciphertexts.
You need to recover the 64 bits key and to submit it in hexadecimal inside the 42CTF{} tag.

Example : 42CTF{1234567890ABCDEF}

Good luck.

Solved by

Username Website Score Date
nicolaslekoala https://epita.fr 390 11. Januar 2021 12:59
arpascal https://arnaud.sh 1590 31. Januar 2021 19:37
Unactive 445 30. Oktober 2021 15:31
42stillsucks https://www.youtube.com/watch?v=hfTAv8htci8 1025 6. November 2021 23:58
reveng https://twitter.com/revengsh 790 8. Februar 2022 21:15
S_in https://twitter.com/sin_infosec 850 10. März 2022 00:47
clinche https://github.com/clinche 1785 17. März 2022 17:45
sam0verfl0w https://github.com/Unam3dd 835 23. März 2022 13:36
pixailz@420v3rfl0w https://github.com/Pixailz 850 24. März 2022 11:39
asoursou https://github.com/ChuOkupai 450 8. Juli 2022 00:50
Asterion64 340 13. Oktober 2022 21:28
hsabir-xoreaxeax https://github.com/lenartlola 1465 18. Oktober 2022 18:44
riblanc 1205 19. Februar 2023 17:10
asarandi https://github.com/asarandi 1785 8. Mai 2023 08:02
MinjaeLee https://github.com/MinjeaLee 1700 30. Oktober 2024 03:35
ikkiw 990 25. Mai 2025 11:34
WanZKey https://github.com/WanZKey 250 17. September 2025 18:54
Dueshell 420 22. Dezember 2025 09:11
Ardcord 1200 6. Januar 2026 14:22
skav https://www.logogenie.fr 1745 6. Januar 2026 15:14