To start an encrypted database with a connect request.
On database startup. Not used when connecting to a running database.
By default, databases are not encrypted.
Starting the database server in the Utility Guide
You must specify this parameter when you start an encrypted database with a connect request.
The following profile fragment says to use the encryption key “is!seCret” to connect to a strongly encrypted database named marvin.db that is already running.
... UID=dba;PWD=sql;DBF=marvin.db;DBKEY='is!seCret' ...