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 940 4. Januar 2020 03:57
Danhia 435 4. Januar 2020 12:22
antox https://www.w0nderland.fr 225 13. Juni 2020 11:50
Unactive 505 25. Januar 2021 14:10
arpascal https://arnaud.sh 1835 27. Januar 2021 22:49
molivier 580 17. April 2021 02:53
Yir 1015 17. Oktober 2021 21:38
42stillsucks https://www.youtube.com/watch?v=hfTAv8htci8 1170 29. Oktober 2021 21:28
00101010 1105 24. Dezember 2021 16:27
lmartin 1170 8. März 2022 17:45
nieyraud 960 8. März 2022 17:47
S_in https://twitter.com/sin_infosec 985 9. März 2022 23:48
clinche https://github.com/clinche 1080 17. März 2022 12:45
tpeters 190 12. Juni 2022 13:16
Nyr 215 16. Oktober 2022 15:11
riblanc 1115 19. Februar 2023 13:02
Syca https://cyrihack.fr 1475 6. April 2023 17:29
asarandi https://github.com/asarandi 2070 23. Mai 2023 00:30
Nics 130 2. Juni 2023 13:03
eclypse666 590 31. August 2023 22:39
hsabir-xoreaxeax https://github.com/lenartlola 1620 27. September 2023 11:50
albaud https://github.com/Gymnopediese 715 13. Oktober 2023 12:34
Ardcord 915 22. Oktober 2023 11:09
Narmand 110 14. November 2023 17:20
Nochance 130 17. November 2023 18:00
MinjaeLee https://github.com/MinjeaLee 1980 26. September 2024 10:56
BenJ4368 170 15. November 2024 13:36
a8ymgi01w@mozmail.com 175 15. November 2024 13:36
chabrune 95 15. November 2024 13:43
UncleReaton https://unclereaton.dev 735 23. März 2025 00:18
  • Author : Danhia
  • Point reward : 60