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 875 4. Januar 2020 03:57
Danhia 410 4. Januar 2020 12:22
antox https://www.w0nderland.fr 205 13. Juni 2020 11:50
Unactive 480 25. Januar 2021 14:10
arpascal https://arnaud.sh 1725 27. Januar 2021 22:49
molivier 530 17. April 2021 02:53
Yir 955 17. Oktober 2021 21:38
42stillsucks https://www.youtube.com/watch?v=hfTAv8htci8 1100 29. Oktober 2021 21:28
00101010 1040 24. Dezember 2021 16:27
lmartin 1095 8. März 2022 17:45
nieyraud 900 8. März 2022 17:47
S_in https://twitter.com/sin_infosec 930 9. März 2022 23:48
clinche https://github.com/clinche 1580 17. März 2022 12:45
tpeters 175 12. Juni 2022 13:16
Nyr 195 16. Oktober 2022 15:11
riblanc 1040 19. Februar 2023 13:02
Syca https://cyrihack.fr 1375 6. April 2023 17:29
asarandi https://github.com/asarandi 1955 23. Mai 2023 00:30
Nics 115 2. Juni 2023 13:03
eclypse666 535 31. August 2023 22:39
hsabir-xoreaxeax https://github.com/lenartlola 1585 27. September 2023 11:50
albaud https://github.com/Gymnopediese 675 13. Oktober 2023 12:34
Ardcord 835 22. Oktober 2023 11:09
Narmand 100 14. November 2023 17:20
Nochance 120 17. November 2023 18:00
MinjaeLee https://github.com/MinjeaLee 1865 26. September 2024 10:56
BenJ4368 155 15. November 2024 13:36
a8ymgi01w@mozmail.com 160 15. November 2024 13:36
chabrune 90 15. November 2024 13:43
UncleReaton https://unclereaton.dev 680 23. März 2025 00:18
ikkiw 1085 23. Mai 2025 13:45
  • Author : Danhia
  • Point reward : 55