On Sun, Jun 11, 2000 at 09:24:37AM +0200, Mark Murray wrote:
> > If it not weakers I can't see why it strenghthens.
> > I.e. you can constantly strenghthens generator with passing it through XOR -1
> ?
> > If not, why any other value is better than -1?
>
> Huh? -1 is a constant, not random. Pass your data through _random_ bits,
> XORing it with them, and you have unbreakable crypto (one-time-pad) if you
> make a record of the random bits (the key).
Yes, if passing _random_ through -1 _data_ not makes it strengthens,
passing through 1,2,3,4... _data_ will not makes it strenghthens too.
If attacker tries to predict random number generator itself and know pid and
mktemp() algorithm, adding getpid() bits he already know will not stop him from this
attack unless you plan to keep mktemp() algorihtm secret.
--
Andrey A. Chernov
<[EMAIL PROTECTED]>
http://ache.pp.ru/
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