On Monday, 4 March 2013 at 11:04:46 UTC, Joseph Rushton Wakeling
wrote:
On 03/04/2013 09:58 AM, Andrea Fontana wrote:
Maybe you can try to connect an external hardware device (e.g.
arduino) and read
some params from real world... :)
Yes, there are nice options here ... :-)
However, to re-focus the discussion -- I'm not so much asking
"How do I ensure my own code is statistically safe?", as there
are lots of ways I can go about that. I'm concerned with the
theoretical and practical justification for Phobos' existing
unpredictableSeed, and possible superior alternatives that
could reasonably be implemented _for Phobos_.
I found this which seems to be what Phobos duplicates
http://www.cryptosys.net/rng_algorithms_old.html
The theory appears to be no more than an ad-hoc attempt to find
something unique and hard to predict across threads, processes
and machines.
The superseded and improved version uses a hash of more
potentially unique values
http://www.cryptosys.net/rng_algorithms.html
Clearly we're lacking a real solution, and IMO the solution
should be hardware devices that come with standardized random
generators.
--rt
