bug#22202: 24.5; SECURITY ISSUE -- Emacs Server vulnerable to random number generator attack on Windows systems

[Richard Copley]

Ah, I forgot to mention one other thing that had occurred to me.
It might not be a good idea to pass the current time to CryptGenRandom
for the optional initial seed. The current time (in various forms) is
already used as seed entropy by the system, and it's conceivable
(though implausible) that we could be destroying entropy by doing
this. It's probably better (and "acceptable" according to the
documentation) not to pass any seed at all.