User Guide

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.

3.3.1.2. Source files exclusion

This option is effective for Windows and Linux operating systems and bootable media.

This option is effective for disk-level backup of NTFS and FAT file systems only. This option is effective

for file-level backup of all supported file systems.

The option defines which files and folders to skip during the backup process and thus exclude from

the list of backed-up items.

The preset is: Exclude files matching the following criteria: *.tmp, *.~, *.bak.

To specify which files and folders to exclude:

Set up any of the following parameters:

• Exclude all hidden files and folders

Select this check box to skip files and folders with the Hidden attribute. If a folder is Hidden, all of

its contents — including files that are not Hidden — will be excluded.

• Exclude all system files and folders

Select this check box to skip files and folders with the System attribute. If a folder is System, all of

its contents — including files that are not System — will be excluded.

You can view file or folder attributes in the file/folder properties or by using the attrib command. For more

information, refer to the Help and Support Center in Windows.

• Exclude files matching the following criteria

Select this check box to skip files whose names match any of the criteria — called file masks — in

the list; use the Add, Edit, Remove and Remove All buttons to create the list of file masks.

You can use one or more wildcard characters * and ? in a file mask:

The asterisk (*) substitutes for zero or more characters in a file name; for example, the file mask

Doc*.txt yields files such as Doc.txt and Document.txt

The question mark (?) substitutes for exactly one character in a file name; for example, the file

mask Doc?.txt yields files such as Doc1.txt and Docs.txt — but not the files Doc.txt or Doc11.txt

Exclusion examples

Criterion Example Description

By name File1.log Excludes all files named File1.log.

By path C:\Finance\test.log Excludes the file named test.log located in the folder

C:\Finance

Mask (*) *.log Excludes all files with the .log extension.