[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Truly Random Numbers
At 9:26 PM 3/2/96, Adam Shostack wrote:
> My expectation would be that your numbers are not random in a
>cryptographic sense, and that this route of attack is much less
>efficient than others that would be used.
>
> I'll note that PGP does NOT take your data entered and convert
>it to numbers, but takes timings to choose a hard to predict starting
>point for its prime searching.
Yes, which is why I said this in my post:
"...With a reasonable amount of entropy, such as picking the next digit
from several keyboard timings, I expect the 150-decimal-digit number to be
*very* random!"
> I'd expect this use of timings is better than using the large
>random number you entered, but in a theory sense only. Both are
>pretty difficult; thats why we like large numbers. :)
--Tim May
Boycott "Big Brother Inside" software!
We got computers, we're tapping phone lines, we know that that ain't allowed.
---------:---------:---------:---------:---------:---------:---------:----
Timothy C. May | Crypto Anarchy: encryption, digital money,
[email protected] 408-728-0152 | anonymous networks, digital pseudonyms, zero
W.A.S.T.E.: Corralitos, CA | knowledge, reputations, information markets,
Higher Power: 2^756839 - 1 | black markets, collapse of governments.
"National borders aren't even speed bumps on the information superhighway."