On 9/2/2015 3:30 PM, Dr. Boris Neubert wrote:
> 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).
>
> Could this be achieved with custom commands?

In order to encrypt the files, you would have to modify backuppc so that 
it can read the encrypted files for comparison purposes.  This should be 
possible as it has already been done for compression, but it would not 
be as easy as adding a custom command somewhere.

-- 
Bowie

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