GENERATING A CHALLENGE RESPONSE IMAGE INCLUDING A RECOGNIZABLE IMAGE

• US 20090313694A1
• Filed: 06/16/2008
• Published: 12/17/2009
• Est. Priority Date: 06/16/2008
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: MATES, John W.
• Granted Patent: US 8,132,255 B2
• Time in Patent Office: Days
• US Class Current: 726/21
• CPC Class Codes: G06F 21/36 by graphic or iconic representation

Abstract

Provided are a method, system, and article of manufacture for generating a challenge response image including a recognizable image. A challenge image is generated including random elements and a recognizable image. The challenge image is transmitted to a recipient. Recipient input associated with the transmitted challenge image is received. A determination is made as to whether the received recipient input matches a descriptor associated with the recognizable image in the challenge image. Indication is made that the recipient correctly identified the recognizable image.

Claims

1. A method, comprising:

generating a challenge image including random elements and a recognizable image;

transmitting the challenge image to a recipient;

receiving recipient input associated with the transmitted challenge image;

determining whether the received recipient input matches a descriptor associated with the recognizable image in the challenge image; and

indicating that the recipient correctly identified the recognizable image.

2. The method of claim 1, further comprising:

permitting the recipient access to a computer resource in response to indicating that the recipient correctly identified the recognizable image.

3. The method of claim 1, wherein generating the image comprise:

selecting one of a plurality of stored recognizable images; and

incorporating the selected recognizable image in the challenge image.

4. The method of claim 1, further comprising:

receiving a request for a page from the recipient computer, wherein the requested page includes an access mechanism for the computer resource;

including the challenge image into the requested page, wherein transmitting the image comprises transmitting the requested page including the challenge image.

5. The method of claim 1, further comprising:

receiving a request from a recipient, wherein the challenge image is generated in response to the recipient request, and wherein a new challenge image is generated including random elements and at least one recognizable image for each of a plurality of recipient requests.

6. The method of claim 1, wherein the challenge image comprises a three dimensional image with the recognizable image appearing three dimensional to human visual perception when displayed at the recipient computer.

7. The method of claim 1, wherein the challenge image includes randomly distributed pieces of recognizable images.

8. The method of claim 1, wherein generating the challenge image comprises generating a stereogram including random elements and the recognizable image, wherein the recognizable image is included such that the recognizable image is perceived by human visual perception as a result of stereopsis.

9. The method of claim 8, wherein the challenge image comprises a random dot autostereogram.

10. The method of claim 8, wherein generating the stereogram comprises generating a pair of first and second images including random elements, wherein the recognizable image is only recognized by human visual perception when the first and second images are observed together, and wherein transmitting the challenge image comprises transmitting the first and second images to the recipient computer.

11. The method of claim 10, wherein the recipient computer fuses the first and second images together, wherein the recognizable image is only recognized by human visual perception when the first and second images are superimposed.

12. The method of claim 10, wherein the recipient computer displays the first and second images next to each other, wherein the recognizable image is only recognized by human visual perception when the first and second images are displayed next to each other.

13. The method of claim 10, wherein generating the pair of first and second images comprises:

generating the first image comprising a random element image;

generating the second image comprising a copy of the first image;

generating correlated changes in positions of the elements in at least one of the first and second images corresponding to the recognizable image such that the recognizable image is recognized by human visual perception when the first and second images are observed together.

14. The method of claim 10, wherein transmitting the first and second images comprises:

transmitting the first image to the recipient computer;

receiving a request from the user after transmitting the first image;

transmitting the second image to the recipient computer in response to the request from the user.

15. The method of claim 1, further comprising:

receiving a recipient image from the recipient computer, wherein generating the challenge image comprises copying the recipient image to the challenge image and including the recognizable image in the challenge image, wherein the challenge image is transmitted to the recipient computer to display next to the recipient image, wherein the recognizable image is only detectable in response to the recipient computer concurrently displaying the transmitted challenge image and the recipient image next to each other.

16. The method of claim 15, further comprising:

receiving a request for a product patch from the recipient computer; and

transmitting a request for the recipient image to the recipient computer in response to the request for the product patch, wherein the recipient image is received in response to the request, wherein the generated challenge image is transmitted to the recipient computer, and wherein the recipient input with the descriptor is received after transmitting the challenge image.

17. The method of claim 15, wherein the generated challenge image comprises a first challenge image and the recognizable image comprises a first recognizable image, further comprising:

determining a second recognizable image in response to determining that the received recipient input does not match the descriptor;

generating a second challenge image comprising a copy of the recipient image including the second recognizable image; and

transmitting the second challenge image to the recipient computer to display next to the recipient image, wherein the second recognizable image is only detectable in response to the recipient computer concurrently displaying the transmitted generated image and the received random dot image next to each other.

18. A system in communication with a recipient, comprising:

a processor; and

a computer readable medium including code executed by the processor to perform operations, the operations comprising;

generating a challenge image including random elements and a recognizable image;

transmitting the challenge image to the recipient;

receiving recipient input associated with the transmitted challenge image;

determining whether the received recipient input matches a descriptor associated with the recognizable image in the challenge image; and

indicating that the recipient correctly identified the recognizable image.

19. The system of claim 18, wherein the operations further comprise:

permitting the recipient access to a computer resource in response to indicating that the recipient correctly identified the recognizable image.

20. The system of claim 18, further comprising:

receiving a request from a recipient, wherein the challenge image is generated in response to the recipient request, and wherein a new challenge image is generated including random elements and at least one recognizable image for each of a plurality of recipient requests.

21. The system of claim 18, wherein generating the challenge image comprises generating a stereogram including random elements and the recognizable image, wherein the recognizable image is included such that the recognizable image is perceived by human visual perception as a result of stereopsis.

22. The system of claim 21, wherein generating the stereogram comprises generating a pair of first and second images including random elements, wherein the recognizable image is only recognized by human visual perception when the first and second images are observed together, and wherein transmitting the challenge image comprises transmitting the first and second images to the recipient computer.

23. The system of claim 18, wherein the operations further comprise:

receiving a recipient image from the recipient computer, wherein generating the challenge image comprises copying the recipient image to the challenge image and including the recognizable image in the challenge image, wherein the challenge image is transmitted to the recipient computer to display next to the recipient image, wherein the recognizable image is only detectable in response to the recipient computer concurrently displaying the transmitted challenge image and the recipient image next to each other.

24. An article of manufacture including code executed to perform operations and communicate with a recipient, wherein the operations comprise:

generating a challenge image including random elements and a recognizable image;

transmitting the challenge image to the recipient;

receiving recipient input associated with the transmitted challenge image;

determining whether the received recipient input matches a descriptor associated with the recognizable image in the challenge image; and

indicating that the recipient correctly identified the recognizable image.

25. The article of manufacture of claim 24, wherein the operations further comprise:

permitting the recipient access to a computer resource in response to indicating that the recipient correctly identified the recognizable image.

26. The article of manufacture of claim 24, wherein the operations further comprise:

receiving a request from a recipient, wherein the challenge image is generated in response to the recipient request, and wherein a new challenge image is generated including random elements and at least one recognizable image for each of a plurality of recipient requests.

27. The article of manufacture of claim 24, wherein generating the challenge image comprises generating a stereogram including random elements and the recognizable image, wherein the recognizable image is included such that the recognizable image is perceived by human visual perception as a result of stereopsis.

28. The article of manufacture of claim 27, wherein generating the stereogram comprises generating a pair of first and second images including random elements, wherein the recognizable image is only recognized by human visual perception when the first and second images are observed together, and wherein transmitting the challenge image comprises transmitting the first and second images to the recipient computer.

29. The article of manufacture of claim 28, wherein transmitting the first and second images comprises:

transmitting the first image to the recipient computer;

receiving a request from the user after transmitting the first image;

transmitting the second image to the recipient computer in response to the request from the user.

30. The article of manufacture of claim 24, wherein the operations further comprise:

receiving a recipient image from the recipient computer, wherein generating the challenge image comprises copying the recipient image to the challenge image and including the recognizable image in the challenge image, wherein the challenge image is transmitted to the recipient computer to display next to the recipient image, wherein the recognizable image is only detectable in response to the recipient computer concurrently displaying the transmitted challenge image and the recipient image next to each other.