V$RMAN_ENCRYPTION_ALGORITHMS

V$RMAN_ENCRYPTION_ALGORITHMS displays supported encryption algorithms. It is used by the RMAN client to validate user-requested algorithms. This view will list AES128, AES192, and AES256 encryption algorithms for the current release. The default algorithm is AES128.

Column	Datatype	Description
`ALGORITHM_ID`	`NUMBER`	Number to identify the algorithm
`ALGORITHM_NAME`	`VARCHAR2(64)`	Name of the algorithm (for example, AES128, AES192, or AES256)
`ALGORITHM_DESCRIPTION`	`VARCHAR2(64)`	Description of the algorithm
`IS_DEFAULT`	`VARCHAR2(3)`	Indicates whether this is the default encryption algorithm (`YES`) or not (`NO`). This value is set by Oracle Database and may vary for each Release (that is, it is not dependent on user-specified RMAN configuration).
`RESTORE_ONLY`	`VARCHAR2(3)`	Indicates whether this algorithm can be used for restore only (`YES`) or not (`NO`). If the value is `NO`, then the algorithm is also allowed for backup. This column is useful in determining whether an encryption algorithm is deprecated for backup purpose.