gbde and geli - differences

[RW]

On Wed, 21 Mar 2007 00:15:04 +0100
Roland Smith <rsmith at xs4all.nl> wrote:

> On Tue, Mar 20, 2007 at 10:36:19PM +0000, RW wrote:
> > On Tue, 20 Mar 2007 19:06:28 +0100 (CET)
> > Wojciech Puchar <wojtek at tensor.gdynia.pl> wrote:
> > 
> > > what they are. both works, both works right.
> > > geli has more options.
> > > 
> > > why there are both? what should i use to have better chance i
> > > will be able to recover data after say 10 years knowing password?
> >  
> > I presume it's to do with geli using OpenSSL libraries and so
> > picking-up hardware acceleration where available. I think gdbe is
> > being sidelined.
> 
> geli uses the crypto(9) framework. Not sure about the OpenSSL
> libraries.

I'm probably mixing up crypto(9) and crypto(3)
> 
> > > i need both encrypted partition and encrypted copies/DVDs.
> > 
> > I'd be interested if anyone has a method for creating encrypted DVDs
> > that still works. 
> 
> You can use a UFS filesystem on a DVD. In short:
> - create an file with random characters the size of a DVD.
> - use that as a vnode backed memory disk with mdconfig.
> - initialize and attach that with geli.
> - create a new filesystem on the geli device
> - mount it.

But how do you put that on a DVD-R or DVD+R?