Feb
13

IFSF CTF Small Challenges (#4, #5, #6, #14, #15)

Contents #4 ER #5 Change #6 Call me #14 Seek me #15 Embedded docs

Sep
21

hack.lu CTF 2011 Simplexor (200)

Category: crypto To get a better security we deceided to encrypt our most secret document with the secure xor-algorithm. Unfortunately we lost the key. Now we are sad. Can you help us recovering the key? Download Summary: recovering multibyte xor-key, using autocorrelation

Mar
07

Codegate CTF 2011 Mini writeups

Some mini writeups on Codegate 2011 Prequals: Issue100,200, Net100,200, Crypto100,200.