Laboratory2, LTD
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Version of 09.04.2019
Fig. 4. Example of digital signature verifying.
In the tab "Verifying of file integrity " there are the following controls:
a)
Open the file.
Click "Open File" and select the desired directory and file. After se-
lecting of the desired file, the program will perform checking of its digital signature.
b)
Indicator of the progress digital signature calculation.
c)
Button "Start" / "Stop".
File digital signature checking runs by pressing the "Start"
button. By pressing “Stop” button the checking process stops.
At the end of the file checking, the program will show the message "The digital signature
is valid", if the integrity is not violated. If the file contains errors, the program displays the
message "The digital signature is not valid!".
Also, for each file, the serial number of the voice recorder is shown (Fig. 5).
a
b
c
