Methods and devices for enrollment and verification of biometric information in identification documents

• US 8,058,972 B2
• Filed: 04/24/2008
• Issued: 11/15/2011
• Est. Priority Date: 05/09/2007
• Status: Expired due to Fees

• Current Assignee: University of North Texas
• Original Assignee: University of North Texas
• Inventors: Mohanty, Saraju P.
• Primary Examiner(s): Lee; Benjamin C
• Assistant Examiner(s): BURGDORF, STEPHEN R
• Application Number:
  US12/150,009
• Publication Number:
  US 20100052852A1
• Time in Patent Office: 1,300 Days
• Field of Search: 235/380, 235382-3825, 283/72, 283/77, 283/79, 283/901, 283/902, 340 51- 567, 340 581- 583, 340/5.84, 340/5.86, 340/10.1, 358/3.28, 370522-529, 380/45, 380/51, 380 54- 56, 380/201, 380/268, 380/281, 380/282, 380/287, 705/57, 705/66, 713170-181, 713/185, 713/186, 902 2- 6, 726/23
• US Class Current: 340/5.83
• CPC Class Codes: B42D 25/00 Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof printing processes to produce identification or security features B41M3/14
• CPC Class Codes: B42D 25/333 Watermarks
• CPC Class Codes: G07C 9/257 electronically G07C9/26 takes precedence

Abstract

Methods and devices for the secure encryption, enrollment, verification, and decryption of biometric and biographical identification information. The unique sequence of steps and the use of a combination of visible watermarking, invisible-fragile watermarking decoding, invisible-robust extraction, and decryption watermarking and encryption provides multiple layers of protection with four biometric based keys and makes it practically impossible for the information to be tampered with.

Claims

1. A method for preparing a secure identification document for an individual using a device capable of capturing biometric information, comprising the steps of:

collecting biographic information from the individual;

generating first, second, third, and fourth random numeric keys and storing the first, second, third, and fourth random numeric keys in a central database;

obtaining a facial image from the individual;

obtaining additional verification images of biometric information from the individual;

merging the first random numeric key with one of the additional verification images of biometric information to create a first encryption key;

encrypting the facial image using the first encryption key and storing it in the central database;

merging one or more of the additional verification images of biometric information from the individual with a unique code associated with the device to create a biometric watermark image;

merging the second random numeric key with one of the additional verification images of biometric information to create a second encryption key;

encrypting the biometric watermark image with the second encryption key and storing the encrypted biometric watermark image in the central database;

embedding the encrypted biometric watermark image in the facial image of the individual using invisible-robust watermarking and the third random numeric key to create a biometric watermark facial image;

watermarking the biometric watermark facial image using invisible-fragile watermarking and the fourth random numeric key to create a final facial image and storing the final facial image on a storage chip associated with the secure identification document;

watermarking the facial image of the individual with a selected design using visible-transparent watermarking to create a visible watermarked facial image;

storing the first encryption key, second encryption key, biometric watermark facial image, and final facial image in the central database;

printing the visible watermarked facial image and the biographical information on the secure identification document; and

attaching the storage chip to the secure identification document.

2. The method of claim 1, wherein the secure identification document is a passport, driver'"'"'s license, credit card, bank card, debit card, ATM card.

3. The method of claim 1, wherein the additional verification images of biometric information from the individual are selected from the group consisting of fingerprint images, iris images, facial contour images, finger geometry images, signatures, and combinations thereof.

4. The method of claim 1, wherein the first encryption key is created by merging the first random numeric key with a fingerprint image.

5. The method of claim 1, wherein the biometric watermark image is created by merging the unique code with a fingerprint image and an iris image.

6. The method of claim 1, wherein the unique code associated with the device is a Universal Product Code (“

UPC”

).

7. The method of claim 1, wherein the storage chip is an RFID chip.

8. The method of claim 1, wherein the selected design is any emblem, logo, seal, design, or pattern.

9. The secure identification document prepared according to the method of claim 1.

10. A method for verifying the identify of an individual possessing the secure identification document of claim 9, comprising the steps of:

verifying the presence of a visible watermark on the visible watermarked facial image;

accessing the final facial image from the storage chip;

obtaining the fourth random numeric key from the central database;

verifying the invisible-fragile watermarking on the final facial image;

obtaining present images of biometric information from the individual;

obtaining the third random numeric key from the central database;

extracting the biometric watermark image from the biometric watermark facial image using invisible-robust watermarking extraction;

obtaining the second random numeric key from the central database;

merging the second random numeric key with one of the present images of biometric information from the individual used to create the second encryption key to create a new second encryption key;

using the new second encryption key to create a decrypted biometric watermark image;

separating the additional verification images of biometric information used to create the biometric watermark image from the biometric watermark image;

obtaining the first random numeric key from the central database;

merging the first random numeric key with one of the present images of biometric information from the individual used to create the first encryption key to create a new first encryption key;

using the new first encryption key to create a decrypted facial image; and

comparing the decrypted facial image with the decrypted biometric watermark image to verify identity.

11. The method of claim 10, wherein the secure identification document is a passport, driver'"'"'s license, credit card, bank card, debit card, or ATM card.

12. The method of claim 10, wherein the present images of biometric information from the individual are selected from the group consisting of fingerprint images, iris images, facial contour images, finger geometry images, signatures, and combinations thereof.

13. The method of claim 10, wherein the storage chip is an RFID chip.

14. The method of claim 10, wherein if any step of the method of verifying fails, the remaining steps are not performed and the identity of the individual is not verified.