The Contests


  1. Problem 1 opens when the contest starts.
  2. Problem n+1 opens (for everybody) once somebody (anybody) has solved problem n.
  3. Problems have a bounty which decays exponentially as people solve it.
  4. Winner is the contestant with the most points 24 hours after the contest begins.
  5. To be eligible to receive a prize your profile must have a vaild email address.

Classical Crypto

Congrats ZetaTwo, on solving all 4 problems in under 25 minutes for the win!


Fun times at the DEFCON Crypto Village this year, congrats h0twinter on taking first!