Feb
09

Olympic CTF 2014 GuessGame (300)

Be careful, it’s cheating! nc 109.233.61.11 3126 Summary: discrete logarithm with group oracle

Mar
08

Codegate CTF 2011 Crypto 400

The attacker got a secret! File Summary: Padding oracle attack analysis

Mar
07

Codegate CTF 2011 Crypto300 Writeup

Description: we are investigating an illegal online gambling site. To find any evidence to support for illegal gambling, we must access the oracle database with administrator privileges. The suspect says that he does not know the administrator password, but we know for sure that he is lying. The password is estimated to be longer than… Continue reading »