write up ctf by ariafatah

ariaf.my.id/ctf_aria/cryptography/2_Martian message part 2.html


soal

I think that’s the key “fselkladfklklakl”
KDERE2UNX1W1H96GYQNUSQT1KPGB

solve

  • kurasa ini adalah cipher jenis xor atau vigenere karena menggunakan key
    • https://cyberchef.org/#recipe=Vigen%C3%A8re_Decode(‘fselkladfklklakl’)&input=S0RFUkUyVU5YMVcxSDk2R1lRTlVTUVQxS1BHQg alt text
      FLAGU2JNU1R1X96VOFNKHLB1GEWQ
      
    • https://www.dcode.fr/vigenere-cipher alt text

flag

FLAGU2JNU1R1X96VOFNKHLB1GEWQ