Mar
20

0CTF 2017 Quals – OneTimePad 1 and 2

I swear that the safest cryptosystem is used to encrypt the secret! oneTimePad.zip Well, maybe the previous one is too simple. So I designed the ultimate one to protect the top secret! oneTimePad2.zip Summary: breaking a linear and an LCG-style exponential PRNGs.

May
03

Google CTF – Woodman (Crypto 100)

How honest are you? Running here Summary: breaking a weak PRNG

Jan
30

Gits 2012 #14 Pwnable (300)

Jacked file running at jacked.final2012.ghostintheshellcode.com:2121 Summary: weak random, BlackJack bot, format string