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

To: duplicity-team@xxxxxxxxxxxxxxxxxxx
From: Aaron Whitehouse <question107216@xxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 13 Apr 2010 02:53:40 -0000
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New question #107216 on Duplicity:
https://answers.launchpad.net/duplicity/+question/107216

Hello,

Is it possible for Duplicity to do incremental backups encrypted to a public key without the passphrase? 

I know how public key encryption works, but I am concerned that Duplicity will need to decrypt parts of the backup to determine what increments are needed. I wish to set up FTP backups to be unattended and automatic without storing a cleartext version of the key/passphrase, so public key encryption without a passphrase would be ideal (I would clearly need to enter a passphrase to restore, but this is fine).

Thanks,

Aaron

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