Use the crypto random functions instead of `rand()`.

Presumably the uses of `rand()` were fine because they were not used in
security-sensitive places, but having to think about whether a crappy RNG
is acceptable in each situation requires effort that could better be
spent elsewhere.

Also, this means that once we have a custom deterministic RNG for
testing, that RNG is used everywhere, so all the code is deterministic.

It also allowed us to delete a system-specific function that wasn't used
anywhere except in a call to `srand()`.

1 files changed, 0 insertions, 1 deletions

diff --git a/toxcore/network.c b/toxcore/network.c
index 1c1459db..68ca43e5 100644
--- a/toxcore/network.c
+++ b/toxcore/network.c
@@ -698,7 +698,6 @@ int networking_at_startup(void)
     }
 
 #endif
-    srand((uint32_t)current_time_actual());
     at_startup_ran = 1;
     return 0;
 }