Discussion:
PGP 2.6.3i and a DISK FILE
(too old to reply)
h***@gawab.com
2008-07-26 19:02:38 UTC
Permalink
When a DISKFILE is encrypted with PGP 2.6.3i, the original file
extension is stripped away and the encrypted file is created with
a .PGP extension. Apparently that early version of PGP will not handle
a file with more than one period (dot) in it.

Does anyone know of a way to use PGP 2.6.3i to descrypt such a file
and restore the COMPLETE original file name? Even an add-on EXE file
would help. ANYTHING will help.

Bob
Neil W Rickert
2008-07-26 20:47:14 UTC
Permalink
Post by h***@gawab.com
When a DISKFILE is encrypted with PGP 2.6.3i, the original file
extension is stripped away and the encrypted file is created with
a .PGP extension. Apparently that early version of PGP will not handle
a file with more than one period (dot) in it.
PGP 2.6.3i was designed in the era of MSDOS. A file with more than
one "." in the name was not possible with MSDOS. The filesystem
did not permit it.
Post by h***@gawab.com
Does anyone know of a way to use PGP 2.6.3i to descrypt such a file
and restore the COMPLETE original file name? Even an add-on EXE file
would help. ANYTHING will help.
I suggest that you zip the file, then encrypt the zip file.
The original filename will be present in the zip archive, so will
be restored by unzip. Or install a more recent version of PGP.
Neil Rickert
2008-07-26 21:22:47 UTC
Permalink
Post by h***@gawab.com
Does anyone know of a way to use PGP 2.6.3i to descrypt such a file
and restore the COMPLETE original file name? Even an add-on EXE file
would help. ANYTHING will help.
Have you actually tested?

I see to recall that the original file name is included in the encrypted
data, so it could be recovered if the software does that. Not sure, but
I think GnuPG will recover it, but you may need it to be built with "idea"
support before it can handle 2.6.3 encrypted data.
h***@gawab.com
2008-07-28 19:24:57 UTC
Permalink
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Post by h***@gawab.com
Does anyone know of a way to use PGP 2.6.3i to descrypt such a file
and restore the COMPLETE original file name? Even an add-on EXE file
would help. ANYTHING will help.
Have you actually tested?
I see to recall that the original file name is included in the encrypted
data, so it could be recovered if the software does that.  Not sure, but
I think GnuPG will recover it, but you may need it to be built with "idea"
support before it can handle 2.6.3 encrypted data.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.9 (GNU/Linux)
iEYEARECAAYFAkiLla8ACgkQvmGe70vHPUOWeQCfdcI5B4N0UYacVDpNMBrLhAyf
sk4AnjAE3hJ2dhrn8Oi0voE1ZwmtygcL
=8GFc
-----END PGP SIGNATURE-----
Hello Neil,

Thanks a lot for both emails. I truly appreciate them. The problem is
that neither of them solve my problem. Not completely anyway. And
maybe that isn't necessary. If you understood the complete problem I
face you would probably agree with that statement. Explaining the
COMPLETE problem, though, would take a ton of typing that I'm sure you
don't want to read. I guess I'll be satisfied with what I've already
done. After all, I am very, very close to using an early version of
PGP to do what I want to do.

For your information, however, let me fill you in on a few details I
didn't mention in my first post. Look at part of what I said in that
Post by h***@gawab.com
Does anyone know of a way to use PGP 2.6.3i to descrypt such a file
and restore the COMPLETE original file name? Even an add-on EXE file
would help. ANYTHING will help.
Have you actually tested?
To that question I say that I've tested hundreds of times without
being able to do what I want to do in the way I want to do it. And I'm
not a newbie at ths thing. I'm 74 years old and I've been working with
DOS and the Command Line since the earliest of days. On top of that I
started using PGP since version just before 2.6.2. I know a lot about
both.
I see[m] to recall that the original file name is included in
the encrypted data . . .
Indeed it is included. PGP 2.6.3i even provides a way to extract it
and thereby re-create the original filename. The command line
instruction to do that is

pgp -p filename

A piece of cake! Right? WRONGO! My problem arises when user learns
that the command line above was meant for use with REAL DOS. Today I'm
using WIN XP SP2 and at the command line I don't get REAL DOS. Today
the user of my operating system receives something that kinda looks
like REAL DOS but today's OS does NOT produce exactly the same result.
At least it doesn't produce the result I obtained years ago with REAL
DOS.

Naaaahhhhh, I won't go into detail because doing so would solve
nothing. I suppose I must accept the fact that PGP v2.6.3i is, in
effect, old, obsolete and worn out. Nothing unusual in that. What the
heck . . .? At age 74 the same thing is happening to me. :(

Thanks again,

Bob
Ed
2008-07-31 08:37:22 UTC
Permalink
Post by h***@gawab.com
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Post by h***@gawab.com
Does anyone know of a way to use PGP 2.6.3i to descrypt such a file
and restore the COMPLETE original file name? Even an add-on EXE
file would help. ANYTHING will help.
[snip]
Post by h***@gawab.com
I see[m] to recall that the original file name is included in the
encrypted data . . .
Indeed it is included. PGP 2.6.3i even provides a way to extract it
and thereby re-create the original filename. The command line
instruction to do that is
pgp -p filename
A piece of cake! Right? WRONGO! My problem arises when user learns
that the command line above was meant for use with REAL DOS. Today I'm
using WIN XP SP2 and at the command line I don't get REAL DOS. Today
the user of my operating system receives something that kinda looks
like REAL DOS but today's OS does NOT produce exactly the same result.
At least it doesn't produce the result I obtained years ago with REAL
DOS.
If a good old fashioned DOS environment is what you need, check out
http://bootdisk.com/bootdisk.htm where you can find downloadable disk
images for several versions of DOS and Windoze



- --
http://blogdoofus.com
Otto Sykora
2008-08-25 17:16:27 UTC
Permalink
You are absolutely correct, 26x does only partially work with DOS7 nad
DOS8.

Try a google search for disastrys versions, called something like
multi 2.63iua or what.

He made that time different versions, some of them more suitable for
w32 operation.

Loading...