Post-Quantum Cryptography: Unbalanced Oil and Vinegar System — Part 1Level 1
by Marc Kleffmann, Enrico Thomae, Christopher Wolf, published on 4/6/2011
By the time quantum computers exist, the actual signing algorithms are not secure anymore. Then one can switch e.g. to so-called "Unbalanced Oil and Vinegar" systems. It is your challenge to break a simplified version of such a system today already.