Resilio Sync Key

It tells other devices which folder they are looking for.

Select (you can also use the QR code feature for quick scanning between mobile devices and desktops). Security Best Practices for Managing Sync Keys

: When syncing to a phone or tablet, use the built-in QR code scanner in the Resilio app instead of typing or emailing the key string.

| Feature | Description | | :--- | :--- | | | Copy the key (e.g., B7SRV7RFX3S3DZYG42ZYJWW6CBR56RF3X ) and send it via any channel—email, SMS, Slack, even a sticky note. | | Read-Only Keys | Generate a separate, read-only key for viewers. The original key remains read-write. | | Encrypted Keys | Share an "encrypted key" ( .sync file) that lets peers store encrypted backups on an untrusted server without ever seeing the plaintext key. | | Expiring Keys | Set time-to-live for temporary access (e.g., 24-hour key for a contractor). | | QR Codes | Mobile apps can scan a QR code of the key—perfect for in-person transfers. | resilio sync key

If you share a Resilio key with a friend via encrypted chat, the file transfer itself happens directly between your devices. No corporate entity scans the files for keywords; no server logs the timestamp of your access. The key is the only bridge. If you delete the key, the bridge burns, and the connection is severed. This "zero-knowledge" approach is why the key is often referred to by power users as the only lock that matters.

The key does not exist on a server; it only exists on the peers (devices) sharing the data.

If you are using the Pro version, consider sharing a "Link" instead of a raw key. Links allow you to set expiration dates and require approvals for new devices. It tells other devices which folder they are looking for

Used to link multiple devices under a single "Private Identity" for automated syncing. 3. How to Use and Share a Sync Key

these keys for a specific setup, like a NAS or a remote server?

There are generally two types of keys you will encounter:

This key allows other devices to download files but prevents them from changing the source folder. If a user modifies a file on a read-only device, those changes will not sync back to the master folder. This is ideal for distributing media libraries or software updates to friends or clients. 3. Encrypted Keys (Zero-Knowledge)