Cannot encrypt/decrypt zip-Files correctly (Andreas)

[akorthaus@web.de]

Hallo!
I think that is not correct, I think itīs simply not possible to decrypt a
binary file by clipboard. Itīs just possible with WinPT filemanager. Also it
is just possible wizthout -a or --armor!!!
-- Andeas




----- Original Message -----
From: "Steve Butler" <sbutler@fchn.com>
To: "'Peter T. Abplanalp'" <pta@psaconsultants.com>; <gnupg-users@gnupg.org>
Sent: Tuesday, June 04, 2002 9:56 PM
Subject: RE: Cannot encrypt/decrypt zip-Files correctly (Andreas)


> I missed the -a flag on the first read.  So, the encrypted file could be
> ftp'ed as ASCII as the -a does give the ASCII armoring.
>
> However, the important piece is that the file (before encryption and after
> decryption) is a gzipped file.  Now, unless somebody can show me a new
flag
> for gzip, all such files are binary even though you start with ASCII text
> files.  So, Andreas was looking at a gzipped file and wondering why it
> looked funny.  If he had uncompressed it after decrypting then it would
have
> looked like his original file.
>
> Now, gpg does do it's own compression so it generally wouldn't be a good
> idea to compress files with some other utility prior to feeding them to
gpg.
> But, I can think of some reasons why that might be desirable (disregarding
> any side affects of attempting to compress an already compressed file).
>
> --Steve
>
> PS  None of the "desirable" reasons will hold water for a purist.
>
> -----Original Message-----
> From: Peter T. Abplanalp [mailto:pta@psaconsultants.com]
> Sent: Tuesday, June 04, 2002 11:18 AM
> To: gnupg-users@gnupg.org
> Subject: Re: Cannot encrypt/decrypt zip-Files correctly (Andreas)
>
>
> don't you have to specify ascii armoring on the command line tho?
> andreas doesn't do that in his command line.  or is gpg smart enough
> to ascii armor a .txt output file based on extension?
>
> On Tue, Jun 04, 2002 at 10:50:05AM -0700, Leigh S. Jones, KR6X wrote:
> > Don't be deceived by incorrect answers.
> >
> > ASCII-armored outputs from encrypted binary files are perfectly OK.
They
> > contain
> > the full 8 bit binary content of the input file converted to the text
> output
> > format.  The
> > method for doing this was long established before PGP/gpg were created.
> No
> > data is lost or corrupted by stripping the high order bit from
> ASCII-armored
> > gpg
> > outputs; tarfiles may be damaged by transport in ASCII mode with ftp,
but
> > ASCII-
> > armored gpg outputs are ftp safe, even if the original data is binary.
> Your
> > problem
> > lies elsewhere.
> >
> > ----- Original Message -----
> > From: <akorthaus@web.de>
> > To: <gnupg-users@gnupg.org>
> > Sent: Tuesday, June 04, 2002 09:18
> > Subject: Cannot encrypt/decrypt zip-Files correctly
> >
> >
> > > Hi!
> > > I?ve got a strange problem.  I try to encrypt a gz-file on my Linux
> Server
> > > using GPG, and download the encrypted file, and decrypt it with WinPT
on
> > my
> > > PC(Win2K).
> > > That`s what I?ve tried in SHELL:
> > >
> > > (17:23:59) [webseite] gpg -o out.txt -a -e --default-recipient
akorthaus
> > > mysql.zip
> > >
> > > in the same way I encrypted html-files which I could decrypt without
any
> > > problems.
> > >
> > > Now I open out.txt and copied the code to my clipboard. After that I
> > opened
> > > WinPT and decrypted the code from clipboard, that worked correctly,
but
> > the
> > > result was:
> > >
> > > Zip!
> > >
> > > As I allready said - the same way worked with html Files!
> > >
> > > What could be the problem, or how can I decrypt complete files using
> > WinPT?
> > >
> > > cu
> > > Andreas
> > >
> > >
> > >
> > > _______________________________________________
> > > Gnupg-users mailing list
> > > Gnupg-users@gnupg.org
> > > http://lists.gnupg.org/mailman/listinfo/gnupg-users
> > >
> >
> >
> > _______________________________________________
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> >
>
> --
> Peter Abplanalp
>
> Email:   pta@psaconsultants.com
> PGP:     pgp.mit.edu
>
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