With Basis# Keygenmes (at least 2 others will come soon) i would exemplify some nice weakness... 
The main goal is to understand and be able to explain how the attack works. That's why Basis# are
 open-source and the "name" of the weakness is given...  

Feel free to email me at: tchernozium[at]yahoo[dot]fr.
Amenesia//TKM! 