Finding encrytion algorithm
gfgs pedo
jtrjtrjtr2001 at yahoo.com
Sat Jul 13 09:48:08 PDT 2002
hi,
eer..I think we need a defenition of an Rng & Prng
that every 1 should agree on.
would this help?
RNG & PRNG
----------------
1:>A RNG has an infinite period where as a PRNG has a
defenite period after which the sequence will repeat.
Atmospheric noise,Radiation decay are examples of
RNG's.(Difference)
2:>An RNG & PRNG should pass a series of radomness
tests. (Similarity)
3:>For the same set of input parameters,a RNG always
give a different output.
A PRNG always gives the same set of outputs for the
same input parameters (Difference)
would any 1 also like 2 review
http://www.ircsuper.net/~neo/prng.html
thanx.
Regards Data.
--- Jim Choate <ravage at einstein.ssz.com> wrote:
>
> On Thu, 11 Jul 2002, Sandy Harris wrote:
>
> > No. Any good algorithm should produce output that
> looks /exactly/
> > like random noise, hence they should all look like
> each other.
>
> Wrong, not all RNG's have the same statistical
> output. There is -nothing-
> in the requirement for a RNG that requires it
> (radiation sources are not
> equiprobable for example, they're much more 'zero'
> than 'one'). There may
> be boundary conditions on crypto applications that
> require equiprobable
> distributions with respect to characters or strings
> (that 'k' thing
> again, see Knuth). But that doesn't apply to -all-
> RNG's or their
> applications by a long shot.
>
> Also, 'random noise' is redundent. 'Noise' is by
> -definition- random,
> otherwise it wouldn't be noise, it would have a
> correlation factor, once
> you found it you could remove the noise (assuming of
> course its
> computationaly tractible).
>
>
> --
>
>
____________________________________________________________________
>
> When I die, I would like to be born
> again as me.
>
> Hugh
> Hefner
> ravage at ssz.com
> www.ssz.com
> jchoate at open-forge.org
> www.open-forge.org
>
>
>
--------------------------------------------------------------------
>
>
>
>
__________________________________________________
Do You Yahoo!?
Yahoo! Autos - Get free new car price quotes
http://autos.yahoo.com
More information about the cypherpunks-legacy
mailing list