>From: Kenneth Stailey <kstailey(a)yahoo.com>
>Sent: Wed, 9 Jul 2003 05:37:09 -0700 (PDT)
>To: Steve Nickolas <usagi.tsukino(a)pinku.zzn.com>
>Subject: Re: RE: [TUHS] v6on286
>The README says:
><< The kernel makes heavy use of the special 286 protected mode
>features >>
>Try bochs set to be a 286.
I figure that a Celeron is a superset of the 386 - ergo, of the 286
also - so there shouldn't be a problem. Maybe I'll do that though,
it's safer in a sandbox.
>I am wondering if Cygwin could be used to build the code. I see that
>ancient C stuff like "=+" was eliminated already.
!!
I think if you converted the ASM to some other format, you could use
Turbo C++ to build it, though...haven't tried that, I don't grok ASM.
>Plus check this site out:
>
>http://www.thefreecountry.com/compilers/cpp.shtml
LOL, I have 6 working C compilers on the Windows/DOS side of my box
already :) (Turbo C++ 1, Borland C++ 3, Watcom C 11, djgpp, MinGW32,
Cygwin)
-uso.
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I was finally able to download a good copy of v6on286 from minnie...
I have Borland C++ 3.1, the existing version was built with 3.0.
There are no binaries in the v6on286 package for the Unix itself,
AFAICT, but I did get a successful MAKE.
This is the weird thing, and I'm not sure if it's pilot error, the
fact I'm running Windoze, or a glitch in the code.
C:\UNIX>un
Screen goes blank except for a block flashing cursor. The keyboard
does not respond - not even the lights - indicating that the machine
is either in a PM loop or completely hung.
Has anyone had better luck than me?
Or have I had better luck than everyone else (author excluded)?
Thx.
BTW...I wonder, could some old C compiler be bootstrapped on v6on286
and then V7 ported on it?
-uso.
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Ah, silly of me. If I used FTP, that could have saved a couple wasted
hours compiling v6on286 :)
--
Maciek (macbiesz(a)optonline.net)
-----Original Message-----
From: Warren Toomey [mailto:wkt@tuhs.org]
Sent: Tuesday, July 08, 2003 8:25 PM
To: Maciek Bieszczad
Subject: Re: [TUHS] v6on286
?! It's still here at ftp://minnie.tuhs.org/UnixArchive/Other/V6on286/
but I'm not sure why Apache hides the README when the same directory
is viewed with http://www.tuhs.org/Archive/Other/V6on286/, I'd better
check that out.
Warren
> From: "Joel Martinez" <president(a)coherent-logic.com>
> To: <tuhs(a)minnie.tuhs.org>
> Subject: Re: [TUHS] OT: Patternless Encryption
> Date: Tue, 8 Jul 2003 11:35:24 -0600
>
> Is it possible to do this with a fixed length key?
>
> > Such a thing exists, it is called a one-time pad. Generate a
> > completely random key as long as the plaintext, and then XOR each
> > successive bit of the key with the corresponding bit of the plaintext.
> > The result is indistinguishable from random noise; only someone with
> > an identical copy of the key can decrypt it (using precisely the same
> > method of course).
For various degrees of security, depending on the length of the key.
Keys are not used directly for encryption, but are used to generate
cryptographically secure pseudo-random sequences.
As a starting point, look at
< http://www.mindspring.com/~schlafly/crypto/faq.htm >
carl
--
carl lowenstein marine physical lab u.c. san diego
clowenst(a)ucsd.edu
> X-From: mirian(a)trantor.cosmic.com (Mirian Crzig Lennox)
> Subject: Re: [TUHS] OT: Patternless Encryption
> Date: Tue, 8 Jul 2003 16:29:59 +0000 (UTC)
>
> On Tue, 08 Jul 2003 15:31:08 GMT, John P. Willis <jwillis(a)coherent-logic.com> wrote:
> >
> >Just curious to hear the opinions of the many wise people here...
> >What is the likelihood of an encryption system in which the resulting data
> >has no pattern,
>
> Such a thing exists, it is called a one-time pad. Generate a
> completely random key as long as the plaintext, and then XOR each
> successive bit of the key with the corresponding bit of the plaintext.
> The result is indistinguishable from random noise; only someone with
> an identical copy of the key can decrypt it (using precisely the same
> method of course).
>
> > and one character of encrypted data may stand for many
> >different characters when decrypted?
>
> Assuming you mean "one character of encrypted data might represent any
> one of several different characters of plaintext" (not "one
> character's worth of encrypted data represents multiple characters
> worth of plaintext), this is indeed the effect of a one-time pad.
> Just don't ever reuse that key; promptly destroy both copies after
> use.
>
> --Mirian
This is hardly the place for a long discussion on such topics, but
one might want to look at the FAQ for the net news group sci.crypt.
carl
--
carl lowenstein marine physical lab u.c. san diego
clowenst(a)ucsd.edu
Just curious to hear the opinions of the many wise people here...
What is the likelihood of an encryption system in which the resulting data
has no pattern, and one character of encrypted data may stand for many
different characters when decrypted?
>From: Maciek Bieszczad <macbiesz(a)optonline.net>
>Sent: Tue, 08 Jul 2003 11:07:48 -0400
>To: tuhs(a)minnie.tuhs.org
>Subject: RE: [TUHS] v6on286
>This might help:
>http://nibbly.york.ac.uk/mirrors/TUHS/Other/V6on286/README
>(I'm not sure why it was removed from TUHS)
I did read it. (Hence, my knowledge to use BC3) :)
I was aware of the / bug and didn't even make it that far. I was
hoping (still am) that someone did build it and make it that far.
-uso.
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On Tue, Jun 24, 2003 at 04:36:02PM -0400, Latisha Vernon wrote:
> I would like to obtain a CD of the pups archive of UNIX. I have tried to
> access the link provided by the pups website, but was told the site no
> longer existed. If possible, please provide information on how I might
> obtain the CD.
I'll forward this to the mailing list; perhaps someone there might help
you. Can you tell us where you live?
Warren
I already had some ideas, and when I saw something called "v7upgrade", a weird thought came to my head...
I'm wondering if any gurus out there would be able to point me in the general direction, as far as getting V7 stuff running on an 8086,
perhaps a full V7 system. Something like v7upgrade but including a kernel and bootloader. I don't know. Just musing...
My only experience with a "real" UNIX is either SunOS via telnet or PicoBSD. I use RH8 Linux, FreeDOS ODIN 0.31 and Win98SE at
home. It would be interesting to play with V7 on one of my computers. :)
BTW I do have v7upgrade running on my Linux box - sweet! :}
-uso.
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To clean up some of the questions:
We (in our group) owned successively two photographic
typesetters:
The original Graphics Systems
C/A/T, which was used to render the camera-
ready copy for several editions of the manual,
also the first edition of K&R as well as
other books. This exposed characters
by flashing a Xenon lamp through a spinning
cylinder with the character images arranged
around the axis; the character was imaged
onto a fiber-optic bundle, which moved
horizontally with respect to the paper. The paper
was moved vertically.
The Linotron 202; it had a CRT on which lines
of characters were drawn, with an unmoving,
line-wide fiber bundle. Rollers moved the paper
vertically.
Both of these were managed by us (including
the hardware connection, via DR11-C; it stood
in for the paper tape that the manufacturers
had intended).
These used chemical processing to develop
the paper. This was messy and (especially
for the C/A/T version) smelly, so we were
glad when the local Comp Center began offering
service on an Autologic APS-5, a machine similar
in design to the 202, but better engineered,
and the comp center managed the chemistry.
This was used for the second edition of K&R,
for example. I think what we sent was troff output
which the CC converted to Postscript.
Later this service was outsourced, then dropped.
In recent years laser printers have become
good enough that decent camera-ready copy
can be generated using them (e.g. for
Kernighan and Pike, The Practice of Programming).
As for the system aspects: K&R 1 (1978) was done on
what would soon be 7th edition Unix, on 11/70;
K&R 2 (1988) using 9th edition on VAX 8550.
Kernighan and Pike's Unix Programming
Evironment (1984) used 8th edition
on VAX 11/750.
About the releases (or pseudo releases) that
Norman mentions: actually 8th edition was
somewhat real, in that a consistent tape
and captured, probably corresponds fairly
well with its manual, and was educationally
licensed for real, though not in large quantity.
9th and 10th were indeed more conceptual in that
we sent stuff to people (e.g. Norman) who asked,
but they weren't collected in complete and
coherent form.
Dennis
