Hidden security techniques for wireless security devices

• US 20080068457A1
• Filed: 09/19/2006
• Published: 03/20/2008
• Est. Priority Date: 09/19/2006
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Clemens, Jonathan P.
• Granted Patent: US 8,471,904 B2
• Time in Patent Office: Days
• US Class Current: 348/143
• CPC Class Codes: G06F 21/71 to assure secure computing or processing of information
• CPC Class Codes: G06F 21/81 by operating on the power supply, e.g. enabling or disabling power-on, sleep or resume operations
• CPC Class Codes: G06F 2221/2101 Auditing as a secondary aspect
• CPC Class Codes: G08B 13/19634 Electrical details of the system, e.g. component blocks for carrying out specific functions
• CPC Class Codes: G08B 13/1966 Wireless systems, other than telephone systems, used to communicate with a camera
• CPC Class Codes: G08B 25/06 using power transmission lines
• CPC Class Codes: G08B 29/18 Prevention or correction of operating errors G08B29/02, G08B29/12 take precedence
• CPC Class Codes: H04N 7/181 for receiving images from a plurality of remote sources
• CPC Class Codes: H04W 12/106 Packet or message integrity
• CPC Class Codes: H04W 12/122 Counter-measures against attacks; Protection against rogue devices

Abstract

A security device transmits captured information wirelessly while transmitting checksums for the information via a power line. The security device may be a security camera, a badge reader, or the like.

Claims

1. An apparatus comprising:

capture circuitry to capture an image and generate a checksum for the image;

a wireless interface coupled to the capture circuitry, the wireless interface to transmit the image; and

a power interface coupled to the capture circuitry, the power interface to supply power to the capture circuitry and to transmit the checksum on a power line.

2. The apparatus as recited in claim 1, wherein the image is a frame of a video stream.

3. The apparatus as recited in claim 1, wherein the image is a portion of a frame of a video stream.

4. The apparatus as recited in claim 1, wherein the image is information sensed by an electronic scanner.

5. The apparatus as recited in claim 1, wherein the capture circuitry is a badge scanner.

6. The apparatus as recited in claim 1, wherein the capture circuitry is a biometric reader.

7. The apparatus as recited in claim 1, wherein the capture circuitry is a continuous observation device.

8. The apparatus as recited in claim 1, further comprising a backup battery and circuitry powered by the battery to send a wireless transmission if the power supplied by the power interface is interrupted.

9. A method comprising:

capturing an image using capture circuitry;

calculating a checksum of the image;

transmitting the image wirelessly; and

transmitting the checksum via a power line.

10. The method as recited in claim 9, wherein the image is a frame of a video stream.

11. The method as recited in claim 9, wherein the image is a portion of a frame of a video stream.

12. The method as recited in claim 9, wherein the image is information sensed by an electronic scanner.

13. The method as recited in claim 9, wherein the capture circuitry is a badge scanner.

14. The method as recited in claim 9, wherein the capture circuitry is a biometric reader.

15. The method as recited in claim 9, wherein the capture circuitry is a continuous observation device.

16. The method as recited in claim 9, further comprising:

if the power supplied by the power interface is interrupted, sending a wireless transmission using a backup battery and circuitry powered by the battery.

18. The system as recited in claim 13, wherein the image is a frame of a video stream.

19. The system as recited in claim 13, wherein the image is a portion of a frame of a video stream.

20. The system as recited in claim 13, wherein the image is information sensed by an electronic scanner.

17. A system comprising:

wired receiver to receive a checksum that was transmitted on a power line;

wireless receiver to receive an image wirelessly; and

circuitry to verify the integrity of the image using the checksum.

22. The system as recited in claim 17, wherein the image is a frame of a video stream.

23. The system as recited in claim 17, wherein the image is a portion of a frame of a video stream.

24. The system as recited in claim 17, wherein the image is information sensed by an electronic scanner.

25. The system as recited in claim 17, wherein the capture circuitry is a badge scanner.

26. The system as recited in claim 17, wherein the capture circuitry is a biometric reader.

27. The system as recited in claim 17, wherein the capture circuitry is a continuous observation device.

28. The system as recited in claim 17, further comprising a backup battery and circuitry powered by the battery to send a wireless transmission if the power supplied by the power interface is interrupted.

21. A system comprising:

capture circuitry to capture an image and generate a checksum for the image;

an antenna;

a wireless interface coupled to the capture circuitry, the wireless interface to transmit the image on the antenna; and

a power interface coupled to the capture circuitry, the power interface to supply power to the capture circuitry and to transmit the checksum on a power line.