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User’s Manual
DVR-4TN/8TN/16TN/16TS/16TT Series
SPECO TECHNOLOGIES 01/06
122
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>.
Video Export
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
CH1 CH2 CH3 CH4
2005/03/19 AM 07:50:05
2005/03/28 PM 03:09:18
Normal
NO
NO
NO
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
TM
and click <Play> on the main window tool bar.
• Click <Verify> tab to display the Verify window.