ARM Electronics DVRHD OSD - Manual (Page 62)

OSD Setup Manual
61
Verify digital signature of exported videos
In the tab, as shown below, users can authenticate videos with digital signatures.
Follow the steps below to complete the verification.
x Select any video from the Data List and click at the bottom, then the “Playback”
window will be displayed returning a GOOD or BAD signature result in the
field. A GOOD signature indicates the exported clip has not been altered, whereas a
BAD signature means the video might be changed at some point.
x Alternatively, click to select the *.gpg, *.drv (or *.avi), *.sig files, which belong
to the video to be authenticated, respectively. After all files are selected, click
button to start verifying digital signature.