In your JMX console, execute the operation Encryption >
Operations > Encrypt.
This
will re-read the main and backup keystores and re-encrypt the encrypted
properties. The repository can continue to run during this operation; any
newly-created encrypted properties will be encrypted with the new key.
Note: Only a single re-encryption can be done at a particular time. If a
re-encrypt is already running then subsequent requests have no
effect.