Apr
02

0CTF 2018 Quals – zer0TC (Crypto 916)

0ops Toy Cipher, hope you enjoy it:) zer0TC.zip Summary: meet-in-the-middle and key-schedule constraints

Oct
10

HITCON CTF QUALS 2016 – PAKE / PAKE++ (Crypto 250 + 150)

pake1.rb pake2.rb Summary: attacking password-based key exchange schemes based on SPEKE with MITM.

Feb
09

Olympic CTF 2014 GuessGame (300)

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

Jan
30

Gits 2012 # – Crypto 400

files running at hellothere.final2012.ghostintheshellcode.com Summary: MITM attack