Adaptive Server versions 15.7 and later support master-key functionality.
The master key:
- Can be used with the dual master key as a composite key to provide dual control and split knowledge for all user-created keys. Alternatively, the master key can be used as a composite key with a column encryption key’s explicit password.
- Can be altered to add key copies. Master key copies provide access to the dual-master key for unattended start-up, to support recovery of the master key, and to allow users other than the base-key owner to set the encryption password.