How to apply encryption on existing realm database

Question

I have an iOS app that use a non-encrypted realm database.

Now I would like to apply encryption on that database.

Can I just set an encryption key using:

Realm.setEncryptionKey(key, forPath: Realm.defaultPath)

and then realm will encrypt the existing database?

Or do I need to create a new realm database file with encryption and then move the data in the existing database to the new encrypted database?

Answer 1

You'll have to create an encrypted copy of the unencrypted Realm file, which you can do by using Realm().writeCopyToPath(_:encryptionKey:) and then you can use the encrypted file at the new location.