Daniel J. Bernstein, Tanja Lange and Nadia Heninger (left to right) 2013 in Germany at 30C3
<a href="//commons.wikimedia.org/wiki/User:Ordercrazy" title="User:Ordercrazy">Ordercrazy</a>
2013-12-28
<span class="int-own-work" lang="en">Own work</span>