Transmission of encrypted image data

• US 10,291,814 B2
• Filed: 10/13/2017
• Issued: 05/14/2019
• Est. Priority Date: 10/14/2016
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Thanigasalam, Haran
• Primary Examiner(s): Barnes, Ted W
• Application Number:
  US15/783,597
• Publication Number:
  US 20180109696A1
• Time in Patent Office: 578 Days
• CPC Class Codes: G06F 21/602 Providing cryptographic facilities or services
• CPC Class Codes: G06F 21/606 by securing the transmission between two devices or processes
• CPC Class Codes: G06F 21/83 input devices, e.g. keyboards, mice or controllers thereof
• CPC Class Codes: G06T 1/0007 Image acquisition
• CPC Class Codes: H04L 9/0819 Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) network architectures or network communication protocols for key distribution in a packet data network H04L63/062
• CPC Class Codes: H04L 9/0822 using key encryption key
• CPC Class Codes: H04L 9/12 Transmitting and receiving encryption devices synchronised or initially set up in a particular manner
• CPC Class Codes: H04L 9/14 using a plurality of keys or algorithms
• CPC Class Codes: H04N 1/32272 Encryption or ciphering

Abstract

In one example, a system for transmitting encrypted data includes a processor to select a virtual channel to be encrypted between an application processor and an image sensor during an initialization process. The processor can also transmit a virtual channel command corresponding to the selected virtual channel to the image sensor. The processor can also poll a register in the image sensor to verify the image sensor has stored an encryption key corresponding to the selected virtual channel and detect image data from the image sensor via the virtual channel, the image data encrypted with the encryption key.

Claims

1. A system for transmitting encrypted image data comprising:

a processor to;

select a virtual channel to be encrypted between an application processor and an image sensor during an initialization process;

transmit a virtual channel command corresponding to the selected virtual channel to the image sensor;

transmit an encryption key detection command to the image sensor, the encryption key detection command to indicate a technique to be used by the image sensor to detect an encryption key;

poll a register in the image sensor to verify the image sensor has stored the encryption key corresponding to the selected virtual channel; and

detect image data from the image sensor via the virtual channel, the image data encrypted with the encryption key.

2. The system of claim 1, wherein the processor is to transmit the encryption key to the image sensor via a unified architecture link.

3. The system of claim 1, wherein the processor is to transmit the encryption key to the image sensor via a transmission link, wherein the transmission link is to be verified as uncompromised.

4. The system of claim 1, wherein the processor is to generate a packet for the image data, the packet comprising header information and the image data encrypted with the encryption key.

5. The system of claim 4, wherein the header information comprises a virtual channel indicator indicating the virtual channel to be encrypted.

6. The system of claim 1, wherein the processor is to detect the image data from the image sensor via an aggregator, the aggregator to transmit image data to the processor from the image sensor and a second image sensor.

7. The system of claim 1, wherein the virtual channel to be encrypted is assigned to transmitting real-time processing image data or secure image data.

8. The system of claim 1, wherein the processor is to transmit a test image to the image sensor and verify the image data matches expected encrypted image data.

9. The system of claim 1, wherein the processor is to transmit an instruction to the image sensor to provide an electrical current to a low resistance resistor, the electrical current to interrupt a circuit in the image sensor.

10. The system of claim 1, wherein the processor is to generate a table comprising a plurality of encryption keys for a plurality of virtual channels to be encrypted.

11. The system of claim 1, wherein the processor is to receive unencrypted image data from the image sensor via a unified architecture transmission link and receive the image data encrypted with the encryption key from the image sensor via a secure decrypting microprocessor.

12. A system for transmitting encrypted image data comprising:

a processor to;

detect an encryption key by an image sensor;

store the encryption key in a register of the image sensor;

associate the encryption key with a virtual channel to form an encrypted virtual channel; and

transmit image data to an application processor from the image sensor via the encrypted virtual channel, the image data encrypted with the encryption key.

13. The system of claim 12, wherein the processor is to provide an electrical current to a low resistance resistor, the electrical current to interrupt a circuit in the image sensor.

14. The system of claim 13, wherein the electrical current is to prevent the image sensor from receiving an updated encryption key.

15. The system of claim 12, wherein the processor is to detect the encryption key from an infrared transmitter.

16. The system of claim 12, wherein the processor is to detect the encryption key from a grid-to-bit figure, wherein the grid-to-bit figure comprises alternating configuration black and white boxes along the inner perimeter of the grid-to-bit figure, and encryption black and white boxes inside the configuration black and white boxes, wherein each of the encryption black and white boxes corresponds to a bit from the encryption key.

17. The system of claim 12, wherein the processor is to generate a packet for the image data, the packet comprising header information and the encrypted image data, wherein the header information comprises a virtual channel indicator.

18. The system of claim 12, wherein the image sensor comprises infrared receivers embedded within photon sensors.

19. A method for transmitting encrypted image data comprising:

selecting a virtual channel to be encrypted between an application processor and an image sensor during an initialization process;

transmitting a virtual channel command corresponding to the selected virtual channel to the image sensor;

transmitting an encryption key detection command to the image sensor, the encryption key detection command to indicate a technique to be used by the image sensor to detect an encryption key;

polling a register in the image sensor to verify the image sensor has stored the encryption key corresponding to the selected virtual channel; and

detecting image data from the image sensor via the virtual channel, the image data encrypted with the encryption key.

20. The method of claim 19, comprising transmitting an instruction to the image sensor to provide an electrical current to a low resistance resistor, the electrical current to interrupt a circuit in the image sensor.

21. A non-transitory computer readable media for transmitting encrypted image data comprising a plurality of instructions that, in response to execution by a processor, cause the processor to:

select a virtual channel to be encrypted between an application processor and an image sensor during an initialization process;

transmit a virtual channel command corresponding to the selected virtual channel to the image sensor;

transmit an encryption key detection command to the image sensor, the encryption key detection command to indicate a technique to be used by the image sensor to detect an encryption key;

poll a register in the image sensor to verify the image sensor has stored the encryption key corresponding to the selected virtual channel; and

detect image data from the image sensor via the virtual channel, the image data encrypted with the encryption key.

22. The non-transitory computer readable media of claim 21, wherein the plurality of instructions cause the processor to transmit the encryption key to the image sensor via a unified architecture link.