But as an extra measure symmetric encryption has already proven itself to be useful. Plus you can see your user's plaintext passwords (since you have the key), which you should not be able to do. If the password leaks, you expose all passwords in mere seconds. I certainly wouldn't rely on symmetric encryption alone to store passwords. Compare that to something like LinkedIn (SHA1) where enthusiasts have cracked almost 97% of the passwords in that leak. I'm betting their key was a full 168 bit random value that was immediately deleted when the leak came to light, so it's likely that value will never exist again in this universe. So, most of the passwords were never discovered. Other than the giant crossword puzzle created by the password hints combined with their choice of ECB mode to encrypt the passwords that allowed people to infer blocks of passwords, I haven't been able to find any evidence that the encryption key was leaked or guessed. You have the option to include external storage in user quotas.Proof that they're not pointless: The adobe password leak. Any user that exceeds the quota cannot upload or sync data. The maximum disk space assigned to each user. Group admins are granted administrative privileges on system groups and can add new users, edit user properties, and remove existing users from those groups. By default, new users are not assigned to any groups. You may create system (non-LDAP) groups and assign system group memberships to users. Both the user and the admin can change the user’s e-mail at anytime. The user then gets an e-mail to set the password. Both the user and the admin can change the user’s password at anytime.
The admin sets the new user’s first password. If the full name is not set, it defaults to the login name. Admins and users may change the full name anytime. The user’s display name that appears on file shares, the ownCloud Web interface and emails. The user can log in either using the login name or the e-mail address.
Note that it cannot be changed after creating the user. Retrieve Log Files and Configuration Settings.Classify Documents and Enforce Policies.Microsoft Office Online / WOPI Integration.Migrating from User Key to Master Key Encryption.The HSM (Hardware Security Module) Daemon.External Storage Authentication Mechanisms.Detailed Installation on Ubuntu (various versions).
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