...

Share with ownCloud Users, Groups or Guest Users

It only takes some simple steps to share files using End-to-End-Encryption:

1. When an ownCloud or Guest user logs in for the first time, a

   yellow Attention box asks for a

   wizard performing the initial creation of the keys is shown
   

   Image Removed
   Click on the link

   Image Added

   Detailed information about the setup process is found in the E2EE - User Manual
   
   
2. Create a folder which should contain encrypted files. A direct share of a file wich was uploaded before is not possible.
   Image RemovedUse the E2ee share Single, previously uploaded files cannot be converted to encrypted files.
   Image Added

3. Open the folder's Sharing properties and check the Share Encrypted option to enable encrypted sharing and/or assign owncloud users or guest users to share with.

   Image Removed

   Info
   Encrypted folders are automatically shared by a custom url. They can not be shared with the default share url.

   You will receive an email once the invited guest user

   .

   Image Added

   Note
   If you start uploading right away, the files will be encrypted for you only. If you want to share files with other users, make sure to invite them and double check, if they have a valid public key in the system.

4. Next you need to share this folder. Add ownCloud users, groups or guest users the same way you would do in a standard ownCloud installation by entering the user name into the Share with input field or by inviting a guest user by entering the email address:
   Image Added

   Info
   If you shared with a guest user, you will receive an email notification once the guest has logged in the first time (and thus created

   his

   the key). You

   can then start uploading.

Encrypted Folder

You can change any folder into an encrypted by checking the appropriate checkbox:

Image Removed

Next you need to share this folder. This can be done with the normal share options or by inviting a guest user by entering his email address::

Image Removed

Once a folder is shared you can view the details in the share tab:

Image Removed

1. may spot this in the Sharing tab as well, when the user name is shown with a lock symbol instead of an exclamation mark symbol (see Sharing tab below). Only then it makes sense to start uploading files.

   Info
   If you add an existing ownCloud or guest user who already has got keys all files in the directory will be re-encrypted on the fly so the users can read them instantly. When sharing with a group, files will be re-encrypted for all group members.

2. Once a folder is shared you can view the details in the Sharing tab
   
   Image Added
   
   In this screenshot you see the file list (middle) and the Sharing tab (right) for the folder New Folder.

   Share Tab View

   
   Users who have got at least one key are indicated with a black lock symbolImage Added
   Users who do not have any keys are indicated with a red exclamation mark symbolImage Added
   
   When sharing with one or more groups, all group members will be listed.
   
   Below each user a list of abbreviated key ids is shown fore reference, when you move the mouse pointer over it the full key id is shown.
   
   If a user has generated a new key after a file was uploaded to the directory, this key is missing in the folder and therefore that user would not be able to open the mentioned file without re-encrypting the folder.
   In this case the user name is shown bold, followed by the number of new keys in the parentheses. The missing key id is shown in red color.
   
   As a Sharer, by clicking the arrow buttonImage Addednext to the user name you can re-encrypt the folder, which adds the new keys. A confirmation window will open, indicating how many files would have to been re-encrypted.
   
   Guest users receive an invitation email upon sharing with them for the first time. As long as they have not yet registered theImage Addedbutton is shown. By clicking this button the original invitation email containing the login credentials are resent to that user.
   

   File List View

   
   Every folder, which is shared encrypted carries a lock symbol in the folder icon.
   
   

   Image Added A white lock indicates that the folder is encrypted for all keys for all users the folder was shared with.
   
   Image Added A red lock indicates that at least for one user at least one key is missing.

Share with Groups

Sharing end-to-end-encrypted with groups is done the same way as with the ownCloud default.

Share with Public Links

Starting with version 1.3.0 it is possible to have files, uploaded to a public share, end-to-end-encrypted. The uploaded file will be encrypted with the share initiator's public keys.

There is no way uploaders can add their keys, so the files can be opened by the recipient only.

E2EE for Public Links is set up in three little steps:

1. Create a folder and open its Sharing properties:
   
   Image Added
   
   

2. Create a public link and make sure, that the share is writable by users, i.e. choose Read & Write or Upload only:

   Info
   When choosing Read & Write public users can see their and previously uploaded e2ee-files and even download them. However, they would not be able to open them since they never have a private key to decrypt. If uploaded files should be invisible to your share recipients, choose Upload only (File drop)

   
   
   Image Added

3. Mark the folder as an e2ee folder by clicking the Share encrypted checkbox