Recycling

Published date : Jan. 5, 2020, 4:29 p.m.
They told us to discard our keys but we find it more eco-friendly to reuse them.

Hint: The flag is inside 42CTF{} and messages are in english.

Solved by

Username Website Score Date
reveng https://twitter.com/revengsh 775 Jan. 5, 2020, 8:32 p.m.
Miaou 340 Jan. 7, 2020, 3:31 p.m.
Danhia 375 Jan. 7, 2020, 6:36 p.m.
nicolaslekoala https://epita.fr 385 Jan. 13, 2021, 12:33 a.m.
arpascal https://arnaud.sh 1560 Jan. 24, 2021, 8:07 p.m.
Yir 860 Jan. 25, 2021, 12:34 a.m.
molivier 495 April 9, 2021, 11:43 p.m.
42stillsucks https://www.youtube.com/watch?v=hfTAv8htci8 1005 Nov. 9, 2021, 4:29 p.m.
lmartin 1010 March 9, 2022, 11:46 a.m.
S_in https://twitter.com/sin_infosec 835 March 10, 2022, 12:05 a.m.
clinche https://github.com/clinche 1750 March 20, 2022, 2:21 p.m.
Cryptanalyse 325 May 12, 2022, 9:36 a.m.
abouthib 915 Aug. 3, 2022, 4:32 a.m.
eclypse666 490 Nov. 12, 2022, 9:11 p.m.
Ardcord 1185 March 7, 2023, 11:03 p.m.
asarandi https://github.com/asarandi 1750 May 16, 2023, 2:05 p.m.
hsabir-xoreaxeax https://github.com/lenartlola 1435 Sept. 29, 2023, 4:45 p.m.
tkondrac 310 Sept. 29, 2023, 4:46 p.m.
lemmok 475 Nov. 21, 2023, 9:26 p.m.
G3ngh1s 400 July 13, 2024, 12:11 a.m.
MinjaeLee https://github.com/MinjeaLee 1665 Sept. 24, 2024, 12:22 p.m.
ikkiw 975 May 25, 2025, 1:55 a.m.
Dueshell 415 Dec. 22, 2025, 8:35 a.m.
skav https://www.logogenie.fr 1710 Jan. 7, 2026, 8:44 a.m.
timatias https://github.com/tiagomatias930/tiagomatias930 775 March 23, 2026, 10:28 a.m.