HRDP H.264 Rev B DVR User Guide
______________________________________________________________________________________________
Document 800-06801 Rev F
97
02/13
Digital Verifier Overview
JPG images and AVI video files that are exported from the Digital Video
Recorder are automatically embedded with a digital signature. Digital
signatures are a way to verify the authenticity of the images to ensure that
they have not been tampered with or edited in any way. Included on the
Software Installation DVD, supplied with the recorder, is the Digital Signature
Verification program. This program can be installed on any Windows XP or
Windows Vista computer.
Using the Digital Verifier
1.
Open the Digital Verification program by selecting Start > Programs >
HRDP > Digital Verifier > Digital Signature Verifier.
2.
Click the Browse button to load the JPG image.
3.
Enter the Site Code of the recorder that the image was originally
extracted from. (The Site Code is specified in the System Configuration
Menu).
4.
Click Verify to continue or Close to close the window without verifying.
If the image has not been
tampered with, a blue square will
appear around the image with the
message
“
Original image file.
”
If the image has been tampered with, a
red square will appear around the image
with the message
“
Entire image
changed or wrong SITE CODE.
”
