Re: [Duplicity-talk] --file-to-restore without passphrase

[edgar . soldin]

On 10.10.2014 01:55, Grant wrote:
> I built my encrypted backups without a passphrase by using
> --use-agent.  

you mean that you enter the passphrase in the gpg-agent dialog everytime it 
pops up when it's needed, right?
 
> I'm trying to restore a file like this:
> duplicity --use-agent -t 3D --file-to-restore /dir/file.txt
> file:///backup-dir /home/user/file.txt
> 
> I can see in top that duplicity and gpg are running but nothing ever
> happens.  

that's probably gpg-agent asking for your passphrase, weird though that it does 
not get through to your terminal.

>If I omit --use-agent, I am prompted for a passphrase and
> leaving it blank gives me "Cannot use empty passphrase with symmetric
> encryption!".

that's because you can't. gpg does simply not allow you to encrypt 
symmetrically against an empty passphrase. it has to be at least one character 
long technically.

why exactly do you use gpg-agent with symmetric encryption. that only leads to 
gpg-agent asking the password every time instead of gpg/duplicity. there is no 
safety gain there.

what is your duplicity version?

..ede/duply.net