Backing up data to an untrusted server or sharing data with someone who needs to hold a backup but shouldn't view the content. How to Use a Resilio Sync Key
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In the world of file sharing, a Resilio Sync Key (also known as a Secret) is your personal "digital handshake." Unlike cloud services that store your data on their servers, Resilio uses these keys to connect your devices directly via peer-to-peer (P2P) technology. resilio sync key
Right-click a folder in Resilio Sync, select "Share", and choose whether you want to share a Read-Write or Read-Only link (which contains the key).
To help tailor further advice on your synchronization setup, tell me: Backing up data to an untrusted server or
Once two devices find each other, they perform a secure cryptographic handshake to verify they hold the correct key.
| Key Letter | Key Name | Access / Permission | Use Case | | :--- | :--- | :--- | :--- | | | Standard Read-Write Key | Full Control: Can view, add, modify, and delete files. Can also share the folder with other devices. | Full read and write access for trusted collaborators. | | B | Standard Read-Only Key | View Only: Can see and download files, but cannot make any changes, add new files, or delete anything. | Sharing a document or photo library without risk of accidental deletion or changes. | | D | Encrypted RW Key | Read-Write for encrypted nodes. Can read, write, and modify folder content on devices that can decrypt data. | For trusted collaborators in an encrypted folder setup. | | E | Encrypted Read-Only Key | Can read and decrypt data from encrypted nodes. Can receive file updates but cannot modify files. This key can decrypt the data it receives. | A middle ground between a full RW key and a blind encrypted key. | | F | Encrypted Key | Server/Backup Only: Can receive, store, and re-seed (share) encrypted data, but CANNOT decrypt any filenames or content. | An untrusted third party, such as a VPS or a cloud server, that can hold encrypted backups without being able to read them. | | M | Identity Key | Used to link multiple devices into a single identity. | Syncing all your own devices without needing to re-share every single folder. | To help tailor further advice on your synchronization
Anyone with the read/write key can change or delete files for all linked devices. Guard this key carefully.
In a digital landscape dominated by centralized cloud storage providers like Google Drive and Dropbox, Resilio Sync offers a powerful alternative based on BitTorrent’s peer-to-peer (P2P) technology. At the heart of this system lies the "Key"—a unique alphanumeric string that governs how data is accessed, synced, and secured across devices. Understanding these keys is essential for anyone looking to master private, high-speed data synchronization. The Mechanism of the Key
Not all keys are created equal. Resilio Sync has developed a sophisticated prefix system that allows users to control access levels instantly. A Resilio Sync key consists of capital letters from A to Z and numbers from 2 to 7 (Base32 encoding). The very first character of the key tells you what permissions the holder has.
Copy the key or the sharing link and send it to your recipient securely.