Appendix E: Verifying Digital Signature - Speco DVR-4TN User Manual

User's Manual

Appendix E: Verifying Digital Signature

The digital signature aims to authenticate a video file exported from the unit. Follow the
instructions to export video with a digital signature and to verify the digital signature.
To export recorded video with digital signature:
To export recorded video with a digital signature to a USB hard drive or CD-RW
drive / DVD+RW drive, follow these steps.
• In <Video Export> menu, select copy device, data type, expected channel and
start/end time, or event video clips.
• Set the <Digital Signature> function to <YES>.
• Start the exporting process by setting <Begin Export> to <YES>.
1. Select Device
2. Select Ch:
3. Start Time
4. End Time
5. Select Events
6. Data Type
7. Digital Signature
8. Erase Disc
9. Begin Export
Each recorded video will be exported into four files with different filenames,
including *.gpg, *.drv, *.sig and readme.txt.
To verify the exported recorded video:
Following are the procedures for digital signature verification.
• Start your SpecoRemote™ and click <Play> on the main window tool bar.
• Click <Verify> tab to display the Verify window.
132
Video Export
CH1 CH2 CH3 CH4
2005/03/19 AM 07:50:05
2005/03/28 PM 03:09:18
Normal
NO
NO
NO
DVR-4TN/8TN/16TN/16TS/16TT Series
SPECO TECHNOLOGIES 01/08