Re: [openpgp] Deprecating compression support

"Neal H. Walfield" <neal@walfield.org> Wed, 27 March 2019 10:46 UTC

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Date: Wed, 27 Mar 2019 11:46:01 +0100
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From: "Neal H. Walfield" <neal@walfield.org>
To: Andre Heinecke <aheinecke@gnupg.org>
Cc: openpgp@ietf.org, Justus Winter <justuswinter@gmail.com>, Vincent Breitmoser <look@my.amazin.horse>
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Subject: Re: [openpgp] Deprecating compression support
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Hi Andre,

On Wed, 20 Mar 2019 14:17:53 +0100,
Andre Heinecke wrote:
> On Wednesday 20 March 2019 14:14:49 CET Vincent Breitmoser wrote:
> > Is your point that you would want to keep compression as a feature in those
> > applications, hence removing it from OpenPGP would mean you'd have to keep 
> it
> > around unstandardized / on a different layer?
> 
> Exactly. The User Experience of Kleopatra on Windows is that you right click a 
> folder and encrypt that folder. You need compression there.
> Currently it is standardized. You propose to remove the standard so it will be 
> unstandartized and no longer interoperable.

You talk about encrypting a folder.  So I assume you mean multiple
files.  As far as I know, 4880 doesn't support this out of the box.
For instance, an OpenPGP message can only have one literal data
packet:

  https://tools.ietf.org/html/rfc4880#section-11.3

Are you using some container format?  PGP/Mime with multiple
attachments?  Something else?

Thanks,

Neal