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List:       linux-crypto
Subject:    Re: Secure backup of encrypted partition
From:       Rob McGee <i812 () softhome ! net>
Date:       2003-06-17 2:12:15
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On Tue, Jun 17, 2003 at 12:52:59AM -0000, Frog wrote:
> >   Anonymous via the Cypherpunks Tonga Remailer wrote:
> > > When I use tar -o ...... $FILE | gpg -c ......
> > > 
> > > (please sobebody help to write a working example)
> > 
> > See "tar --help". I don't know what your -o is supposed to do.
> > Generally GNU tar writes to stdout by default, so you just do
> [snip]

> tar -O is eqv tar --to--stdout

Indeed. In my tar it's also the same as "tar -f-" or just "tar". But
"tar -O" != "tar -o". This is Unix: case matters.

> Have gpg designed to encrypt ~Gigabytes of files from stdin without unsecure ~tmp
> files creation

Try it and find out! However I would not want any gpg'ed files bigger
than a CD-R, for sake of easy manageability. Even that would be a bit
too much. I'd suggest breaking your data down into smaller archives.

    Rob - /dev/rob0
-
Linux-crypto:  cryptography in and on the Linux system
Archive:       http://mail.nl.linux.org/linux-crypto/

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