Authentication method and system

• US 7,162,035 B1
• Filed: 05/24/2000
• Issued: 01/09/2007
• Est. Priority Date: 05/24/2000
• Status: Expired due to Fees

• Current Assignee: Copilot Ventures Fund III LLC
• Original Assignee: TRACER DETECTION TECHNOLOGY CORPORATION
• Inventors: Durst, David I., Kaish, Norman, Fraser, Jay, Hoffberg, Michael, Rodricks, Brian
• Primary Examiner(s): Zand, Kambiz
• Application Number:
  US09/577,959
• Time in Patent Office: 2,421 Days
• Field of Search: 380/54, 713/185, 101/33, 428/1.6, 360/133, 235/454
• US Class Current: 380/54
• CPC Class Codes: G06F 21/602 Providing cryptographic facilities or services
• CPC Class Codes: G06K 19/086 with markings consisting of randomly placed or oriented elements, the randomness of the elements being useable for generating a unique identifying signature of the record carrier, e.g. randomly placed magnetic fibers or magnetic particles in the body of a credit card
• CPC Class Codes: G06K 7/12 using a selected wavelength, e.g. to sense red marks and ignore blue marks
• CPC Class Codes: G06K 7/1404 Methods for optical code recognition
• CPC Class Codes: G06Q 30/0185 Product, service or business identity fraud
• CPC Class Codes: G09C 5/00 Ciphering apparatus or methods not provided for in the preceding groups, e.g. involving the concealment or deformation of graphic data such as designs, written or printed messages
• CPC Class Codes: H04L 2209/24 Key scheduling, i.e. generating round keys or sub-keys for block encryption
• CPC Class Codes: H04L 2209/56 Financial cryptography, e.g. electronic payment or e-cash
• CPC Class Codes: H04L 2209/608 Watermarking
• CPC Class Codes: H04L 2209/805 Lightweight hardware, e.g. radio-frequency identification [RFID] or sensor
• CPC Class Codes: H04L 9/3236 using cryptographic hash functions
• CPC Class Codes: H04L 9/3242 involving keyed hash functions, e.g. message authentication codes [MACs], CBC-MAC or HMAC
• CPC Class Codes: H04L 9/3247 involving digital signatures

Abstract

The present invention provides a method and apparatus for the production and labeling of objects in a manner suitable for the prevention and detection of counterfeiting. Thus, the system incorporates a variety of features that make unauthorized reproduction difficult. In addition, the present invention provides an efficient means for the production of labels and verification of authenticity, whereby a recording apparatus which includes a recording medium, having anisotrophic optical domains, along with a means for transferring a portion of the recording medium to a carrier, wherein a bulk portion of the recording medium has macroscopically detectable anisotrophic optical properties and the detecting apparatus thereon.

Claims

1. An optically readable data storage medium, comprising an optically readable substrate having a data pattern and a set of optically readable characteristics which are randomly determined by a non-deterministic physical manufacturing process, further comprising a cryptographically processed set of identifications of the random optically readable characteristics, and the data pattern, associated with the data storage medium, the data pattern and the optically readable characteristics being adapted to be readable by a common imaging system, wherein the data storage medium is resistant to reproduction and alteration of the data pattern can be detected, in combination with an authentication device, said authentication device comprising:

(a) an illumination source having an output adapted for exciting fluorescence;

(d) an optical imaging sensor, for sensing a pattern of fluorescence; and

(e) a processor for analyzing said pattern of fluorescence as said set of optically readable characteristics which are randomly determined by a non-deterministic physical manufacturing process, to determine a correspondence thereof with said cryptographically processed set of identifications of the random optically readable characteristics and the data pattern associated with the data storage medium.

2. The system according to claim 1, wherein the optically readable substrate comprises a self-authenticating sealing tape, the tape further comprising a seal tamper indicator, the data pattern comprises a plurality of unique identification portions of the tape, periodically disposed along a length thereof, wherein a recorded hash of identifications is disposed proximate to a respective unique identification portion.

3. The system according to claim 2, wherein the optically readable characteristics comprise a pattern selected from the group consisting of a random dye pattern and a random fiber pattern.

4. The optically readable data storage medium according to claim 1, wherein said cryptographically processed set of identifications comprises a cryptographic hash.

5. The optically readable data storage medium according to claim 1, wherein said cryptographically processed set of identifications comprises a digital signature.

6. The optically readable data storage medium according to claim 1, wherein said cryptographically processed set of identifications is encrypted using a public-key private key technique.

7. The optically readable data storage medium according to claim 1, wherein said optically readable characteristics comprise a fluorescence pattern.

8. The optically readable data storage medium according to claim 1, wherein said optically readable characteristics comprise a polarization pattern.

9. The optically readable data storage medium according to claim 1, wherein said optically readable characteristics comprise a random fiber pattern.

10. The optically readable data storage medium according to claim 1, wherein said set of optically readable characteristics which are randomly determined by a non-deterministic physical manufacturing process comprise a non-deterministic optical polarization pattern.

11. The optically readable data storage medium according to claim 1, wherein said set of optically readable characteristics which are randomly determined by a non-deterministic physical manufacturing process comprise a non-deterministic optical fluorescent polarization pattern, wherein said illumination source excites a fluorescence of said pattern, and said optical imaging sensor determines a polarized fluorescent optical pattern.

12. The optically readable data storage medium according to claim 1, wherein said set of optically readable characteristics which are randomly determined by a non-deterministic physical manufacturing process comprise a non-deterministic optical polarization pattern, wherein said optical imaging sensor determines a polarization pattern under at least two different image acquisition states.

13. The optically readable data storage medium according to claim 1, wherein said set of optically readable characteristics which are randomly determined by a non-deterministic physical manufacturing process comprise a non-deterministic optical fluorescent pattern, wherein said illumination source and optical imaging sensor together determine a specific fluorescence characteristic of the fluorescent optical pattern.

14. An optically readable data storage medium, comprising an optically readable substrate having a data pattern and a set of optically readable characteristics which are randomly determined by a non-deterministic physical manufacturing process, further comprising a cryptographically processed set of identifications of the random optically readable characteristics, and the data pattern, associated with the data storage medium, the data pattern and the optically readable characteristics being adapted to be readable by a common imaging system, wherein the data storage medium is resistant to reproduction and alteration of the data pattern can be detected, further comprising an authentication device, said authentication device comprising:

(a) an illumination source having a narrowband output adapted for exciting fluorescence at a wavelength differing from said narrowband output, having a time-varying polarization axis;

(b) an optical filter to exclude the narrowband output and pass the fluorescence at the wavelength differing from said narrowband output;

(c) an optical imaging sensor directed toward an imaging region, for sensing dichroic elements and a recorded data pattern through said optical filter; and

(d) a processor for extracting a pattern of dichroic elements from a background, based on changes in an output of said optical imaging sensor under a plurality of respective polarization axes, and for determining whether the extracted pattern corresponds to a predetermined pattern.

15. The optically readable data storage medium according to claim 14, wherein said cryptographically processed set of identifications comprises a cryptographic hash.

16. The optically readable data storage medium according to claim 14, wherein said cryptographically processed set of identifications comprises a digital signature.

17. The optically readable data storage medium according to claim 14, wherein said cryptographically processed set of identifications is encrypted using a public-key private key technique.

18. The optically readable data storage medium according to claim 14, wherein said optically readable characteristics comprise a random fiber pattern.

19. The system according to claim 14, wherein the optically readable substrate comprises a self-authenticating sealing tape, the tape further comprising a seal tamper indicator, the data pattern comprises a plurality of unique identification portions of the tape, periodically disposed along a length thereof, wherein a recorded hash of identifications is disposed proximate to a respective unique identification portion.

20. An optically readable data storage medium, comprising an optically readable substrate having a data pattern and a set of optically readable characteristics which are randomly determined by a non-deterministic physical manufacturing process, further comprising a cryptographically processed set of identifications of the random optically readable characteristics, and the data pattern, associated with the data storage medium, the data pattern and the optically readable characteristics being adapted to be readable by a common imaging system, wherein the data storage medium is resistant to reproduction and alteration of the data pattern can be detected,

wherein said optically readable data storage medium comprises an optically readable substrate having a data pattern and a set of anisotropic optically readable fluorescent characteristics which are randomly determined by a non-deterministic physical manufacturing process;

further comprising an authentication device, said authentication device comprising;

(a) an illumination source adapted for exciting the fluorescent characteristics;

(b) a polarizer;

(c) an optical filter which filters an output of the illumination source and passes the fluorescence;

(d) a common optical imaging sensor directed toward an imaging region, for sensing fluorescent characteristics and a recorded data pattern through said optical filter; and

(e) a processor for extracting a pattern of the anisotropic optically readable fluorescent characteristics, and for authenticating the storage medium based on a correspondence of the extracted pattern and the recorded hash, whereby the data storage medium is resistant to reproduction and alteration of the data pattern can be detected.

21. The optically readable data storage medium according to claim 20, wherein said cryptographically processed set of identifications comprises a cryptographic hash.

22. The optically readable data storage medium according to claim 20, wherein said cryptographically processed set of identifications comprises a digital signature.

23. The optically readable data storage medium according to claim 20, wherein said cryptographically processed set of identifications is encrypted using a public-key private key technique.

24. The optically readable data storage medium according to claim 20, wherein said optically readable characteristics comprise a random fiber pattern.

25. The system according to claim 20, wherein the optically readable substrate comprises a self-authenticating sealing tape, the tape further comprising a seal tamper indicator, the data pattern comprises a plurality of unique identification portions of the tape, periodically disposed along a length thereof, wherein a recorded hash of identifications is disposed proximate to a respective unique identification portion.