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 370 11. Januar 2021 12:59
arpascal https://arnaud.sh 1510 31. Januar 2021 19:37
Unactive 420 30. Oktober 2021 15:31
42stillsucks https://www.youtube.com/watch?v=hfTAv8htci8 965 6. November 2021 23:58
reveng https://twitter.com/revengsh 750 8. Februar 2022 21:15
S_in https://twitter.com/sin_infosec 805 10. März 2022 00:47
clinche https://github.com/clinche 1695 17. März 2022 17:45
sam0verfl0w https://github.com/Unam3dd 785 23. März 2022 13:36
pixailz@420v3rfl0w https://github.com/Pixailz 805 24. März 2022 11:39
asoursou https://github.com/ChuOkupai 470 8. Juli 2022 00:50
Asterion64 320 13. Oktober 2022 21:28
hsabir-xoreaxeax https://github.com/lenartlola 1390 18. Oktober 2022 18:44
riblanc 1145 19. Februar 2023 17:10
asarandi https://github.com/asarandi 1695 8. Mai 2023 08:02
MinjaeLee https://github.com/MinjeaLee 1610 30. Oktober 2024 03:35
ikkiw 935 25. Mai 2025 11:34
WanZKey https://github.com/WanZKey 240 17. September 2025 18:54
Dueshell 400 22. Dezember 2025 09:11
Ardcord 1140 6. Januar 2026 14:22
skav https://www.logogenie.fr 1655 6. Januar 2026 15:14
timatias https://github.com/tiagomatias930/tiagomatias930 820 22. März 2026 04:24
bouliboula 795 19. Mai 2026 08:40