Re: File transfers with post-transfer encryption
From: UnixFan (gxy1997_at_yahoo.com.au)
Date: 08/31/04
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Date: 30 Aug 2004 21:58:07 -0700
Scott McGerik <scottlm@visi.com> wrote in message news:<412e0513$0$8088$a1866201@newsreader.visi.com>...
> Can or how do I set up a system so that after a remote user transfers a
> file to my local server the file is immediately encrypted with GnuPG?
> That is, as soon as the file contents are received, they are passed to
> a program that encrypts and then writes them to disk. I am using OpenSSH
> 3.8 and prefer a system that allows the remove users to use scp or sftp
> and to be transparent to them.
>
> A constraint is that the file contents must never be written to disk in
> plaintext as this server resides in a DMZ and the contents of the files
> are private health information. The goal of this is to limit the exposure
> of our production servers by situating them behind a firewall while at
> the same time allowing our trading partners to deliver files to us in a
> more secure manner. Our production server would retrieve and remove the
> files from the DMZ server. There would be no holes in the firewall from
> the outside world.
>
> Pointers to FAQs, books, and other resources are appreciated.
>
> Scott McGerik
Why can't you ask the remote user to encrypt the files using your
public key before transfer?
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