This very secure locking mechanism encloses files and only gives them to you when you know the passphrase. Find it and you will have the flag. Category: reversing Summary: find out a xor cipher, use xortool to get the key
Tag: xortool
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.