Identified author

Published date : 4. Januar 2020 00:16
Hill Cipher - Known plaintext
Our spy has intercepted this message. It contains the meeting place of double agents working for our enemies. Unfortunately, we haven't decrypted it yet.

The only hint we have is the name of the author that our spy has been able to identify: BROWN.

Good luck.

PS: the flag is 42CTF{THEPLACEOFMEETING}

Solved by

Username Website Score Date
reveng https://twitter.com/revengsh 1005 4. Januar 2020 03:57
Danhia 465 4. Januar 2020 12:22
antox https://www.w0nderland.fr 240 13. Juni 2020 11:50
Unactive 530 25. Januar 2021 14:10
arpascal https://arnaud.sh 1965 27. Januar 2021 22:49
molivier 615 17. April 2021 02:53
Yir 1080 17. Oktober 2021 21:38
42stillsucks https://www.youtube.com/watch?v=hfTAv8htci8 1250 29. Oktober 2021 21:28
00101010 1210 24. Dezember 2021 16:27
lmartin 1260 8. März 2022 17:45
nieyraud 1055 8. März 2022 17:47
S_in https://twitter.com/sin_infosec 1055 9. März 2022 23:48
clinche https://github.com/clinche 1170 17. März 2022 12:45
tpeters 210 12. Juni 2022 13:16
Nyr 230 16. Oktober 2022 15:11
riblanc 1210 19. Februar 2023 13:02
Syca https://cyrihack.fr 1590 6. April 2023 17:29
asarandi https://github.com/asarandi 2200 23. Mai 2023 00:30
Nics 140 2. Juni 2023 13:03
eclypse666 630 31. August 2023 22:39
hsabir-xoreaxeax https://github.com/lenartlola 1250 27. September 2023 11:50
albaud https://github.com/Gymnopediese 800 13. Oktober 2023 12:34
Ardcord 995 22. Oktober 2023 11:09
Narmand 115 14. November 2023 17:20
Nochance 135 17. November 2023 18:00
MinjaeLee https://github.com/MinjeaLee 2110 26. September 2024 10:56
BenJ4368 180 15. November 2024 13:36
a8ymgi01w@mozmail.com 185 15. November 2024 13:36
chabrune 95 15. November 2024 13:43
  • Author : Danhia
  • Point reward : 60