Use the encryptiontype option to specify the algorithm for data encryption.
The encryptiontype affects only backup and archive operations. The data that you include is stored in encrypted form, and encryption does not affect the amount of data that is sent or received. During restore and retrieve operations the encrypted data is decrypted with the proper encryption algorithm, regardless of the setting for this option.
This option is valid for all clients.
Place this option in the dsm.sys file within a server stanza. You can also set this option on the Authorization tab of the Preferences editor. The server can override this.
Place this option in the client options file (dsm.opt). You can also set this option on the Authorization tab of the Preferences editor. The server can override this.
.-AES128-. >>-ENCRYPTIONType--+--------+---------------------------------->< +-AES256-+ '-DES56--'