Cryptographic container security system

• US 7,443,293 B2
• Filed: 10/24/2005
• Issued: 10/28/2008
• Est. Priority Date: 10/22/2004
• Status: Expired due to Fees

• Current Assignee: Scantech Identification Beam Systems, LLC (ScanTech Holdings, LLC)
• Original Assignee: ScanTech Holdings, LLC
• Inventors: Bowser, Gary F., Might, Matthew B., Ferderer, Mark A.
• Primary Examiner(s): TRIEU, VAN THANH
• Application Number:
  US11/259,738
• Publication Number:
  US 20070248212A1
• Time in Patent Office: 1,100 Days
• Field of Search: 340/568.1, 340/571, 340/572.1, 340/572.4, 340/539.1, 340/539.26, 340/539.29, 340/539.31, 340/539.32, 340/600, 378/57, 378/62, 705/1
• US Class Current: 340/568.1
• CPC Class Codes: G01N 23/22 by measuring secondary emission from the material
• CPC Class Codes: G01V 5/224 Multiple energy techniques using one type of radiation, e.g. X-rays of different energies

Abstract

A cryptographic container security system for enabling the secure transportation of a container from a sender site to a receiver site. The system includes, in the exemplary embodiment, apparatuses and methods for generating pre-transportation and post-transportation fingerprints of a container being transported, for encrypting and decrypting the pre-transportation fingerprint, and for comparing pre-transportation and post-transportation fingerprints, and for comparing the decrypted pre-transportation fingerprint and the pre-transportation fingerprint. The pre-transportation and post-transportation fingerprints are generated from fingerprint data, including, without limitation, the aggregate gamma flux and aggregate effective Z-number determined for the container by multi-energy scanning systems located, respectively, at sender and receiver sites.

Claims

1. A method for aiding in the secure transportation of a container used to transport at least one item therein, the method comprising the steps of:

producing pre-transportation data for a container having at least one item present therein at least in part by scanning the container with at least one x-ray beam prior to transportation of the container; and

providing the pre-transportation data to an intended receiver of the container for comparison with post-transportation data for the container produced at least in part by scanning the container with at least one x-ray beam after transportation of the container.

2. The method of claim 1, wherein the pre-transportation data is based at least in part on an aggregate gamma flux for the container and the at least one item present therein.

3. The method of claim 1, wherein the pre-transportation data is based at least in part on an aggregate effective Z-number for the container and the at least one item present therein.

4. The method of claim 1, wherein the pre-transportation data is based at least in part on a mathematical relationship in which at least one of an aggregate gamma flux for the container and an aggregate effective Z-number is an operand.

5. The method of claim 1, wherein the pre-transportation data is reproducible within an acceptable error margin after transportation of the container if the container has not been tampered with during transportation.

6. The method of claim 1, wherein the step of providing the pre-transportation data includes providing the data to an intended receiver of the container in a non-encrypted form.

7. The method of claim 1, wherein the step of providing further includes providing the data to an intended receiver of the container in an encrypted form.

8. The method of claim 1, wherein the at least one x-ray beam includes multiple spectra corresponding to multiple energy levels.

9. The method of claim 1, wherein the step of producing pre-transportation data includes generating the at least one x-ray beam from a charged particle beam having charged particles with multiple energy levels.

10. The method of claim 1, wherein the pre-transportation data is based at least in part on one of the weight of the container, the volume of the container, and a size-related dimension of the container.

11. A method for aiding in the secure transportation of a container used to transport at least one item therein, the method comprising the steps of:

producing post-transportation data for a container having at least one item present therein at least in part by scanning the container with at least one x-ray beam after transportation of the container; and

comparing the post-transportation data for the container with pre-transportation data for the container produced at least in part by scanning the container with at least one x-ray beam prior to transportation of the container.

12. The method of claim 11, wherein the post-transportation data is based at least in part on an aggregate gamma flux for the container and the at least one item present therein.

13. The method of claim 11, wherein the post-transportation data is based at least in part on an aggregate effective Z-number for the container and the at least one item present therein.

14. The method of claim 11, wherein the post-transportation data is based at least in part on a mathematical relationship in which at least one of an aggregate gamma flux for the container and an aggregate effective Z-number for the container is an operand.

15. The method of claim 14, wherein the post-transportation data and the pre-transportation data are based at least in part on the same mathematical relationship.

16. The method of claim 11, wherein the post-transportation data corresponds to the pre-transportation data within an acceptable error margin after transportation of the container if the container has not been tampered with during transportation.

17. The method of claim 11, wherein the step of producing post-termination data includes producing post-termination data at least in part by decrypting previously encrypted pre-transportation data.

18. The method of claim 17, wherein the method further comprises comparing unencrypted pre-transportation data with decrypted previously encrypted pre-transportation data after transportation of the container.

19. The method of claim 11, wherein the at least one x-ray beam includes multiple spectra corresponding to multiple energy levels.

20. The method of claim 11, wherein the post-transportation data is based at least in part on one of the weight of the container, the volume of the container, and a size-related dimension of the container.

21. A system for aiding in the secure transportation of a container used to transport at least one item therein, said apparatus comprising:

a scanning subsystem for scanning a container having at least one item therein with at least one x-ray beam, for generating first data representative of a portion of the x-ray beam passing through said container and said at least one item thereof, and for communicating said first data; and

a computer subsystem communicatively connected to said scanning subsystem for receiving said first data communicated from said scanning subsystem and for producing second data based at least in part on said first data, wherein said second data is for subsequent use at least in part to evaluate the probability that said container has not been tampered with during transportation.

22. The system of claim 21, wherein said first data comprises an aggregate gamma flux for said container and said at least one item therein.

23. The system of claim 21, wherein said first data comprises an aggregate effective Z-number for said container and said at least one item therein.

24. The system of claim 21, wherein said computer subsystem is adapted to encrypt said second data to produce encrypted second data.

25. The system of claim 24, wherein said computer subsystem is further adapted to output said second data and said encrypted second data.

26. The system of claim 21, wherein said computer subsystem is adapted to produce said second data based at least in part on a mathematical relationship in which at least one of an aggregate gamma flux for said container and an aggregate effective Z-number for said container is an operand.

27. The system of claim 21, wherein said computer subsystem is adapted to receive third data representative of at least one of an aggregate gamma flux for said container and an aggregate effective Z-number for said container prior to transportation of said container, and to compare said second data and said third data in order to evaluate the probability that said container has not been tampered with during transportation.

28. The system of claim 21, wherein said computer subsystem is adapted to receive third data representative of at least one of an aggregate gamma flux for said container and an aggregate effective Z-number for said container prior to transportation of said container, to produce fourth data by at least decrypting a first portion of said third data, and to compare a second portion of said third data with said fourth data in order to evaluate the probability that said container has not been tampered with during transportation.

29. The system of claim 21, wherein said scanning subsystem comprises a charged particle accelerator for producing a charged particle beam utilized to generate said at least one x-ray beam, said charged particle beam including at least a first plurality of charged particle pulses having a first energy level and a second plurality of charged particle pulses having a second energy level.

30. The system of claim 21, wherein said at least one x-ray beam includes multiple spectra.

31. The system of claim 21, wherein said computer subsystem is adapted for producing said second data based at least in part on one of the weight of said container, the volume of said container, and a size-related dimension of said container.