I tested on trusty and that one worked well. Additionally, I tested the thought I had that my deja-dup patch might cause a regression when resuming a full backup. I noted this concern in the bug description after I wrote the patch.
But thankfully, it does not. Resuming full backups work as intended (both initial backup and a later checkpoint backup). And they validate passwords correctly. So, phew. Will try to test xenial and yakkety today. ** Tags removed: verification-needed-xenial ** Tags added: verification-done-trusty -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to deja-dup in Ubuntu. https://bugs.launchpad.net/bugs/918489 Title: duplicity allows bad passphrase on full backup if archive cache exists Status in Déjà Dup: Fix Released Status in Duplicity: New Status in deja-dup package in Ubuntu: Fix Released Status in deja-dup source package in Trusty: Fix Committed Status in deja-dup source package in Xenial: Fix Committed Status in deja-dup source package in Yakkety: Fix Committed Bug description: when doing a backup for the first time, dejadup verifies your passphrase by having you enter it twice. on future incremental backups it doesn't need to do this because entering the wrong password will result in the backup failing. with the periodic 'full' backups that happen from time to time, however, any password will be accepted. this can lead to a situation where you accidentally type the wrong password once and are left in a situation where you don't know what you typed and have no way to get your files (or do another incremental backup on top of it). i think this is what happened to me recently. clearly, the fix is to explicitly verify the passphrase is correct when doing a new full backup. this may be a duplicity bug. === Ubuntu deja-dup SRU information === [impact] Users may unwittingly re-set their backup password and not be able to restore their data. [test case] - $ deja-dup-preferences # set up a dummy backup - $ deja-dup --backup # complete first encrypted full backup - $ rename 's/\.2016/\.2000/' /path/to/test/backup/* - $ rename 's/\.2016/\.2000/' ~/.cache/deja-dup/*/* - $ deja-dup --backup # second backup, enter the wrong password - $ deja-dup --restore # try to restore with original password [regression potential] Should be limited? The fix is to delete the duplicity cache files, which ought to be safe to delete. It's possible if a full backup is being resumed, we might delete the current progress. That is a better bug to have than this bug, though. A more complicated patch would need to be investigated to prevent that. To manage notifications about this bug go to: https://bugs.launchpad.net/deja-dup/+bug/918489/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
