It is important to distinguish between and license keys : File Sync with Resilio
With cloud storage, you share a link that points to a file on a central server. The server manages access. With Resilio Sync, the key is the link. There is no central server to revoke access from (except by changing the key). The key is the encryption mechanism and the authentication method rolled into one. resilio sync key
Once connected, files sync in both directions (if write access) or one direction (if read-only), using peer-to-peer transfer without a central server. It is important to distinguish between and license
Elias hesitated. Security protocols screamed at him not to plug an unknown key into a networked machine. But curiosity won. He installed the client on an isolated sandbox VM and pasted the key into the dialogue box. There is no central server to revoke access