All transfers between the Æoncase client and the server (either the Sync Appliance or a public cloud deployment) are secured with strong industry-standard encryption.
However, in order to provide additional end-to-end security, the client can be configured to perform supplementary client-side encryption of the files before uploading them to the server. These files cannot be decoded by the server (or its administrator), and will only be accessible to the original owner and the people (s)he gives the encryption key.
When accessing the Æoncase webpage, encrypted files will be listed and can be manipulated like regular files (renamed, moved, deleted…), but it will not be possible to access their contents.
Files can be encrypted either globally (all the files in the sync), or on a folder basis. If you give read/write access to a peer without the corresponding encryption key, (s)he will be able to see the names of the encrypted files, but not their contents.
In order to transfer the encryption key securely: