From: "Campbell, Rolf [SKY:1U32:EXCH]" <moscoop AT americasm01 DOT nt DOT com>
Newsgroups: comp.os.msdos.programmer,comp.os.msdos.djgpp
Subject: Re: Uptime and entropy in DOS
Date: Fri, 11 Feb 2000 13:58:07 -0500
Organization: Nortel Networks
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Link Hochnadel wrote:

> "Campbell, Rolf [SKY:1U32:EXCH]" wrote:
> >
> > Damian Yerrick wrote:
> >
> > > Is it possible to get the uptime of a DOS system?  I need more entropy
> > > than the 32 bits I get from time(NULL) to initialize a pseudorandom
> > > number generator.  Is there a predictable way to get at least 64 bits
> > > of entropy?
> Flip the bits end-to-end, then multiply both values to get 64 bits.

    That will only be 32-bit's of entropy in a 64-bit container.  It would be
just as effective to assign the upper 32-bits some constant (like
0xdeadbeef).

--
(\/) Rolf Campbell (\/)