You might be able to use something like stenc (http://sourceforge.net/projects/stenc/). We use it at work to encrypt the stream to LTO tapes. That said, I don't know if it will work with backuppc....and if you trust sourceforge...
Am 2. September 2015 16:15:34 schrieb Bowie >
>> and how can be a backup encoded (because of unsecure cloud server or
>> similar)?
>
> I believe the only way to do this is to have the data directory reside
> on an encrypted filesystem.
> I am also looking for a reasonable solution for encrypting remote backups.
Encryption of the underlying filesystem on the remote end would not do the
job because data are readily accessible as long as the filesystem is mounted.
I would like encryption on the local end with a key that is kept local and
a salt, e.g. the md5 checksum of the file. This ensures encryption already
when file is in transit. For my setup, this would require getting in
between reading the local file and transferring the then encrypted file via
rsync (similar principle for restoring file).
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