[Owncloud] Encryption

Dirk Kastens dirk.kastens at uni-osnabrueck.de
Tue May 22 09:33:24 UTC 2012


Hi,

someone recently posted, that OC4 uses the user's password as a key for 
file encryption.

I just tested it, and it's true. This means: as soon as someone changes 
his password, he cannot access his files anymore!!!!!! This is a real 
bad joke, IMO!!!!!

I don't know if this also applies to local users. I logged in with an 
ldap account, uploaded a test file, logged out, changed my ldap 
password, logged in again - and the file was unreadable!!!! I switched 
back to the old password and could read the file again.

This really can't be true. If you are forced to change your password by 
some password policy, and you are not allowed to use the old password 
again, you will loose all your files.

Dirk

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