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 AES 128 – the archive will be encrypted using the Advanced Encryption Standard (AES)

algorithm with a 128-bit key

 AES 192 – the archive will be encrypted using the AES algorithm with a 192-bit key

 AES 256 – the archive will be encrypted using the AES algorithm with a 256-bit key.

5. Click OK.

The AES cryptographic algorithm operates in the Cipher-block chaining (CBC) mode and uses a

randomly generated key with a user-defined size of 128, 192 or 256 bits. The larger the key size, the

longer it will take for the program to encrypt the archive and the more secure your data will be.

The encryption key is then encrypted with AES-256 using a SHA-256 hash of the password as a key.

The password itself is not stored anywhere on the disk or in the backup file; the password hash is

used for verification purposes. With this two-level security, the backup data is protected from any

unauthorized access, but recovering a lost password is not possible.

4.7.3 Backup cataloging

Cataloging a backup adds the contents of the backup to the data catalog. Using the data catalog, you

can easily find the required version of data and select it for recovery.

The Backup cataloging option specifies whether full or fast cataloging will be performed on a backup

as soon as the backup is created.

This option is effective only if backup cataloging is enabled on the backed-up machine or on the

storage node.

The preset is: Full cataloging.

If you select Full cataloging, the backup contents are cataloged to the highest possible level of detail.

This means that the following data will be displayed in the catalog:

 For a disk-level backup - disks, volumes, files, and folders.

 For a file-level backup - files and folders.

You may want to select Fast cataloging if the full cataloging tends to affect the performance of the

managed machine or if your backup window is too narrow. The following data will be displayed in the

catalog:

 For a disk-level backup - only disks and volumes.

 For a file-level backup - nothing.

To add the full contents of already existing backups to the catalog, you can start the full cataloging

manually when appropriate.

For more information about using the data catalog, see the "Data catalog" (p. 103) section.

4.7.4 Backup performance

Use this group of options to specify the amount of network and system resources to allocate to the

backup process.

Backup performance options might have a more or less noticeable effect on the speed of the backup

process. This depends on the overall system configuration and the physical characteristics of devices

the backup is being performed from or to.