Substitution of IP addresses:IP-spoofing Darth Vader on the nationality:Sith Safe chop:chomp Programming trick, when a function calls itself:recursion Stable neutral leptons with half-integer spin:neutrino Creator (inventor) of the linear cryptanalysis:Mitsuru Matsui 7!:5040 Number of russian GOST encryption standart:28147-89 Computer superman:root Favorite traceroute's field:TTL