Posts for tag symmetric

• [pbctf 2020] Queensarah2

  Robin Jadoul

  Dec 07, 2020

  pbctf, organizers, crypto, symmetric, cryptanalysis

  The secret mainframe for a distributed hacker group has been discovered. We have managed to exfiltrate some of the code that it runs, but we don't have a physical copy of their access badges. Can you still get the flag?