[wellylug] Encrypted backup recovery

[Richard]

> Does anyone know of an encryption scheme that can (to some degree) recover from read errors on the disk?
> 
> Background-
> I'd like to back up my server to DVD, but the backups won't live in a "trusted environment," so I'd like to encrypt them.
> 
> Right now, I'm using dump & bzip2 to run backups to a spare partition.  They both can deal with a few IO errors here and there.  Basically, I don't want to lose that ability to recover from a corrupted block or two when I write them out to DVD.

http://freshmeat.net/projects/vdmfec/

Encrypt first, then run that over it. 

- Richard.