bug#59292: libreoffice password protection doesn't work

[Maxim Cournoyer]

Hello,

Maxim Cournoyer <maxim.cournoyer@gmail.com> writes:

> Hi,
>
> When password-protecting (encrypting) a file with LibreOffice, it fails
> silently, leaving the file unprotected (!).
>
> Reproducer:
>
> 1. Launch Calc with 'libreoffice --calc'.
> 2. Input something in the first cell.
> 3. Select File -> Save As.  At the bottom left of the dialog box, make
> sure to tick the "Save with password" box.  Give it a name,
> e.g. very-secret.ods, then click on "Save".
> 4. Enter a dummy password, such as 1234.
> 5. Quit LibreOffice Calc.
>
> 6. Open the assumed protected file, with 'libreoffice --calc
> very-secret.ods'.  Notice the file is open without any password.
>
> No output is printed at the console, and if you have an truly
> password-encrypted file, it won't be able to open it.

Attached is a sample ODS file, produced on a different GNU/Linux
distribution immune to the problem.  The password is: "1234".

password-protected-spreadsheet.ods
Description: Binary data

When attempting to open it with our LibreOffice, it says: "The password
is incorrect. The file cannot be opened.", which is a lie.

-- 
Thanks,
Maxim