feistel – 5 – 15 solves : crypto: I just made a brand new cipher! Can you recover the key? 52.86.232.163:32785 feistel.go Summary: slide with a twist attack
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
Mar
07
Codegate CTF 2011 Mini writeups
Some mini writeups on Codegate 2011 Prequals: Issue100,200, Net100,200, Crypto100,200.