Main menu - File - Verify checksums


Activating the menu item "File → Verify checksums" or the "Enter" key opens the dialog "Verify checksums", where the checksums for all checksum files selected in the active panel can be verified. If on activating the function files with extensions unlike "MD5" or "SHA..." are also selected, the following error message is shown:



Another error message is shown, if files created by different checksum methods are highlighted.


Checksum methods are widely used cryptographic hash functions, that create a hash value (checksum) over any message.

The dialog "Verify checksums" allows to verify, if files (listed in the checksum file) have changed since the creation of the checksum file.


The "Verify checksums" dialog contains the tabs

the information bar

and the buttons

Tab Operation


Selected item(s)

The content displayed under "Selected item(s)" differs according to the number of checksum files selected in the active panel:

  • One file to be verified
    If only one file is selected, the name of the file is displayed under "Selected item(s)".
  • Several files to be verified

If several files are selected, the number of files is displayed under "Selected item(s)".

from

The folder from where the checksum files are selected is displayed under "from".

Target

The input field "Target" is not active. It has to hold the folder that contains the files to be verified. This is especially important, if only relative paths are stored in a checksum file.

Include only files of this type:

  • Input field "Include only files of this type"
    The content of the input field "Include only files of this type" allows to limit (filter) the number of files (contained in the selected checksum files) that are to be verified. Wildcards and regular expressions are accepted in the input field. As soon as a filter is entered and the tab "Files" or the button "Run" are activated, the contents of the information bar  ...files ...folders is refreshed.
  • Button
    After activating the button a selection list is shown, with the last inputs (filters) in this field and the text "<RegExp>:" (to enter regular expressions). Clicking a row in this selection list overwrites the contents of the input field with the contents of the clicked row.
  • Button
    After activating the button a selection list with filters (defined under the menu item "Folder → Filter → Set filter") is shown. Selecting a filter overwrites the contents of the input field with "<Filter>:" + "contents of the filter".

Tab Files

The tab "Files" lists all files that have to be verified.



Initially only the columns "Name" and "Path" are filled. The column "checksum" and "Error message" are filled only after activating the button "Run".

Button

Activating the button reloads all files. This may be useful if they can be processed from various workspaces.

Quick filter bar


The quick filter provides the possibility to decrease the number of files for which the checksums have to be verified.

  • Input field
    The input field "Quick filter" allows to define a filter. (Example: ".bmp; .png; a*.htm")
    As soon as the focus is on this field and the first character is typed, the quick filter is activated and the button behind the input field is switched from to .
  • Button

After activating the button a selection list is shown, with the last inputs (filters) in this field. Clicking the button activates the highlighted filter.

  • Button
    Clicking activates the quick filter, changes the button to and refreshes the contents of the information bar  ...files ...folders.
    Clicking deactivates it and switches the button back to .

Tab Settings

Under the tab "Settings" further settings for the "Verify  checksums" process can be defined.



Auto close for successful operation

If this option is checked, the "Verify checksums" dialog is closed automatically, as soon as all processes are successfully completed.

Auto close for canceled operation

If this option is checked, the "Verify checksums" dialog is closed automatically, after one process was canceled.

Use uppercase for display the sum

If this option is checked, the characters in the checksums are shown in capitals.

Count for worker threads

To speed up the checksum calculation, the number of background processes can be increased. With this several checksums can be calculated parallel.

Save relative paths

If this option is irrelevant for the verification of checksums.

Information bar: ...files ...folders

In the "Verify checksums" dialog the information bar (lowest window line) " ...files ...folders" shows the information how many files are to be verified. On opening the dialog the bar is invisible. Whenever the tab "Files" or the button "Run" are activated, the files to be verified are loaded and their number is shown. The number of files shown in the information bar can be different from the number shown under "Selected item(s)". The differences may result from:

  • The input field "Include only files of this type" contains a filter
  • Under "Selected item(s)" all selected files and folders are counted.
    In the information bar all files in selected folders and their subfolders are counted additionally.

Button Run

After activating the button the verify checksums calculation process is started for all items to be verified.

The "Verify checksums" dialog shows the following modifications:



Copy to clipboard

After activating the button the file names, paths and checksums are copied to the clipboard.

Show only errors

After activating the button only files are shown during their calculation or verification an error occurred.

Verification progress

The verification progress is visualized in a progress bar below the item list.

Verification status of the files

In the file list each file is preceded by an icon that shows the verification status of the file:

  •                file not yet verified
  •        file verified successfully
  •        An error has occurred during the calculation or verification process of this file.
                   An error message is shown in the column "Error message" in the row of the file.

The message bar shows the actually verified file.

Button Cancel

Activating the button "Cancel", cancels the verification process and closes the "Verify checksums" dialog.