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Re: [Question #107216]: Public key encryption and incremental backups

 

Question #107216 on Duplicity changed:
https://answers.launchpad.net/duplicity/+question/107216

    Status: Open => Answered

edso proposed the following answer:
This was true until duplicity version 0.6.0 .. This version keeps the
necessary metadata for incrementing backups in an archive/cache folder.
Duplicity checks it against the repository and only downloads/decrypts
these files if outdated(backup from another machine) or
missing/corrupted.

Hence you can do it this way, but will have to keep an eye on
duplicity's output. On smaller backup's I'd suggest going for fulls
only, which never need a private key, except for verifying/restoring.

But what good is your backup anyway if the hacker has access to your
private key, he has access to the duplicity backend credentials as well
as to the data itself.

ede

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