Re: crypted remote backup

From: Kris Kennaway (kris@obsecurity.org)
Date: 11/27/01 

Date: Mon, 26 Nov 2001 17:53:20 -0800
From: Kris Kennaway <kris@obsecurity.org>
To: Randy Bush <randy@psg.com>

On Mon, Nov 26, 2001 at 05:12:41PM -0800, Randy Bush wrote:
> > If you want rsync to only copy the updated/modified stuff you'll have
> > to do the encryption on the "source" server and keep it in a separate
> > "tree"
>
> so i have been thinking
>
> > and using PGP/GPG to do the encryption is the easiest way I've found to
> > do it.
>
> is this feasible for 2GB files?

I wouldn't recommend using it on all 2GB..a single bit error will
render your backup useless. That's why I suggested breaking the file
into chunks in my earlier mail. I wouldn't recommend using PGP
either; you probably don't need it, and it will be slower than
alternatives. Just use OpenSSL..e.g. an appropriate symmetric cipher
and passphrase.

Kris

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