ctf_aria

write up ctf by ariafatah

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Project maintained by ariafatah0711 Hosted on GitHub Pages — Theme by mattgraham

soal

Can you decrypt this message?
Decrypt this message using this key “CYLAB”.

hint

• https://en.wikipedia.org/wiki/Vigen%C3%A8re_cipher

solve

wget https://artifacts.picoctf.net/c/159/cipher.txt

cat cipher.txt
# rgnoDVD{O0NU_WQ3_G1G3O3T3_A1AH3S_f85729e7}

tool

• https://cyberchef.org/#recipe=Vigen%C3%A8re_Decode(‘CYLAB’)&input=cmdub0RWRHtPME5VX1dRM19HMUczTzNUM19BMUFIM1NfZjg1NzI5ZTd9

  cipher = rgnoDVD{O0NU_WQ3_G1G3O3T3_A1AH3S_f85729e7}
  KEY = CYLAB
  # picoCTF{D0NT_US3_V1G3N3R3_C1PH3R_d85729g7}
  

flag

picoCTF{D0NT_US3_V1G3N3R3_C1PH3R_d85729g7}