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Synology NAS User's Guide
Based on DSM 6.2
47 Chapter 9: Set Up File Sharing
Encrypt a Shared Folder
When creating a shared folder, you can choose to encrypt it.
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After a folder is encrypted, you can use the
Encryption drop-down menu to mount/unmount the folder or export the encryption key.
The AES 256-bit encryption can block off all unauthorized access attempts. Without the encryption key, other
people will not be able to use the encrypted data even if they remove the hard drives from your Synology NAS
and mount it on their device.
By default, encrypted shared folders will be unmounted automatically on startup for security reasons. If you reset
default passwords with the reset button located on the Synology NAS, encrypted shared folders will be
unmounted, and the option to automatically mount will be disabled.
Note:
It is recommended that you initialize a key store to manage encryption keys of multiple shared folders. To do so, go
to Control Panel > Shared Folder > Action > Key Manager.
Once you add the encryption key to Key Manager, you can allow an encrypted folder to mount automatically on
startup. Tick the Mount on Boot checkbox in Key Manager.
For the security of the Synology NAS, it is recommended that you choose a physical USB drive as the key store.
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Shared folder encryption is supported on specific models only.
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