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Re: rand() - implementation ideas [Q]
- Subject: Re: rand() - implementation ideas [Q]
- From: z007400b@bcfreenet.seflin.lib.fl.us (Ralph Silverman)
- Date: 23 Oct 1996 19:18:12 GMT
- Newsgroups: comp.lang.c, comp.lang.c++, comp.os.msdos.programmer, comp.lang.asm.x86, comp.lang.apl
- Organization: SEFLIN Free-Net - Broward
- References: <53ju07$odm@bcrkh13.bnr.ca> <D> <Dyz1vo.A0u@igsrsparc2.er.usgs.gov> <53ksg9$408@ednet2.orednet.org> <Dz8BJn.M4A@midway.uchicago.edu> <53vfb4$ajp@sparcserver.lrz-muenchen.de> <540kl3$b9@nntp.seflin.lib.fl.us> <54g9as$13v@news.sandia.gov>
- Xref: nntp.seflin.lib.fl.us comp.lang.c:51918 comp.lang.c++:65616 comp.lang.asm.x86:15518 comp.lang.apl:2446
Kent Budge ("kgbudge,"@,sandia,.gov) wrote:
: Ralph Silverman wrote:
: ...
: >
: > systems based on such predictable behavior
: > can hardly be viewed as 'random' enough
: > for serious (e.g. tactical) purposes...
: Depends on the application. For Monte Carlo integration, the
: predictability is irrelevant (and may actually be advantageous,
: for reproducibility.)
: For cryptography, your conclusions is most definitely correct.
: > actually,
: > there are serious random generators
: > in the
: > hardware realm
: > which depend, alternatively, on
: > principles of
: > diode noise
: > and
: > radiation source and detector
: > .
: ...
: If it's encryption you're after, these gadgets are a very nice way
: to generate a one-time pad, which is not breakable even in theory.
: (You still have to worry about someone Xeroxing your one-time pad, or
: intercepting its transmission to users, but that's a whole different
: ball of wax.)
: --
: Kent G. Budge
: kgbudge@sandia.gov
: (usual disclaimer)
: Return address hacked to foil junk mail; edit before replying.
--
****************begin r.s. response******************
re.
"Depends on the application..."
(posting cited above);
really?
seems reasonable that top
hardware randomization is
preferable in all applications
where a stream of unpredictable
(i.e. unbreakable) randoms is
wanted...
tactical applications would seem
to fit this,
yes?
****************end r.s. response********************
Ralph Silverman
z007400b@bcfreenet.seflin.lib.fl.us
--
Ralph Silverman
z007400b@bcfreenet.seflin.lib.fl.us