Login as admin and get the flag1. mmaddress.7z Summary: breaking HMAC-CRC512
Tag: sage
May 27
CONFidence CTF 2015 – RSA2 (Crypto 500)
Find the flag data Summary: cube attack + recover python’s MersenneTwister state + leak 320/520 LSBs of one of the primes
May 04
VolgaCTF Quals 2015 – CPKC (Crypto 400) writeup
cpkc A home-brewed cryptosystem, should be easy to break. Its keyspace seems to be rather large though… challenge.tar Summary: LLL-based attack on NTRUEncrypt-like cryptosystem.
Jun 02
PHD CTF 2013 Hackskell (500)
We’ve got a screenshot of some encryption, here’s the text transcribed. Please say what’s there. Summary: a couple of modular equations
Sep 22
hack.lu CTF 2011 Wipe out the Klingons (400)
Category: crypto We already made it. The evil Klingons agression is nearly fended. But their final mothership is well protected and even sacrifing a huge number of battleships caused only minor damage. Spies told us an unclear message caused most technical operators and the commander to leave the ship. Unfortunately we are unable to locate …
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