You now can set the
TABLESPACE_ENCRYPTION_DEFAULT_ALGORITHM dynamic parameter to define the default encryption algorithm for tablespace creation operations.
For example, if you set
TABLESPACE_ENCRYPTION_DEFAULT_ALGORITHM to AES256, then future tablespace creation operations will use AES256 as the default encryption algorithm.
TABLESPACE_ENCRYPTION_DEFAULT_ALGORITHM applies to both offline and online tablespace encryption operations. In addition, when you create a new tablespace using Database Configuration Assistant (DBCA), you can set the default tablespace encryption algorithm by using the DBCA command line for silent installations.
Supported encryption algorithms are AES128, AES192, AES256, and 3DES168 If you do not set
TABLESPACE_ENCRYPTION_DEFAULT_ALGORITHM, then the default encryption algorithm is the default that was used in previous releases: AES128.
This practice shows how to define the default tablespace encryption algorithm for tablespace creation operations by setting a dynamic parameter.