Toshiba DVR16-X - Manual (Page 129)

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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 DVR unit is the Digital Signature Verification program.
This program can be installed on any computer and loads an image in question.
Installing the Digital Verifier
1. Insert the Software Installation CD into the CD-ROM. (Do not install on the DVR unit.)
2. Select the Digital Verifier option to begin installation. When the Welcome screen appears, click Next.
3. When the Setup Complete window appears click Finish. Installation is complete.
Using the Digital Verifier
1. Open the Digital Verification program by selecting Start > Programs > Surveillix > Digital Verifier > Digital Signature Verifier.
2. Click the Browse Button to load the .JPG image.
3. Enter the Site Code of the DVR unit that the image was
originally extracted from. (The Site Code is specified in the
Site Information Setup Menu)
4. Click the Verify Button 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.”