It should be possible to have different passwords for login/keyring/encryption

[keros]

There should be a way to set different passwords for this three things.

[fetzig]

know only of password and keyring. those are the same as far as the user/ui knows (currently). backmeup-fronend asks the user for a password only. that password will be used as password and keyring when creating the user via rest api....

password/keyring is currently cached in the user session to simplify ui.

[WolfgangEibner]

Discussion about encryption password in backmeup/backmeup-prototype#81.