System and method for authentication of goods
First Claim
1. An authentication system comprising:
- (a) a medium having a plurality of elements, each clement having an irregularity selected from the group consisting of one or more of an irregular spatial arrangement and an irregular characteristic, and having a determinable intrinsic attribute distinct from a two-dimensional chroma-luminance map;
(b) a detector, detecting said attribute and position, with respect to a positional reference, of the plurality of elements, including said irregularity;
(c) a processor for generating an encrypted message including at least a portion of the attribute and position of the plurality of elements, including a description of said irregularity; and
(d) a recording system for recording the encrypted message in physical association with the medium.
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Accused Products
Abstract
An authentication system comprising a medium having a plurality of elements, the elements being distinctive, detectable and disposed in an irregular pattern or having an intrinsic irregularity. Each element is characterized by a determinable attribute distinct from a two-dimensional coordinate representation of simple optical absorption or simple optical reflection intensity. An attribute and position of the plurality of elements, with respect to a positional reference is detected. A processor generates an encrypted message including at least a portion of the attribute and position of the plurality of elements. The encrypted message is recorded in physical association with the medium. The elements are preferably dichroic fibers, and the attribute is preferably a polarization or dichroic axis, which may vary over the length of a fiber. An authentication of the medium based on the encrypted message may be authenticated with a statistical tolerance, based on a vector mapping of the elements of the medium, without requiring a complete image of the medium and elements to be recorded.
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Citations
52 Claims
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1. An authentication system comprising:
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(a) a medium having a plurality of elements, each clement having an irregularity selected from the group consisting of one or more of an irregular spatial arrangement and an irregular characteristic, and having a determinable intrinsic attribute distinct from a two-dimensional chroma-luminance map; (b) a detector, detecting said attribute and position, with respect to a positional reference, of the plurality of elements, including said irregularity; (c) a processor for generating an encrypted message including at least a portion of the attribute and position of the plurality of elements, including a description of said irregularity; and (d) a recording system for recording the encrypted message in physical association with the medium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. An authentication system comprising:
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(a) an authentication certificate having anisotropic optical properties; (b) a secure code associated with the authentication certificate defining the anisotropic optical properties based on a received input characterizing the anisotropic optical properties; (c) an optical system for reading the anisotropic optical properties of the authentication certificate; and (d) a processor for comparing the read anisotropic optical properties of the authentication certificate with the associated secure code to determine an authenticity of the authentication certificate, the authenticity being associated with a reliability thereof, based on; stochastic variations in the read anisotropic optical properties of the authentication certificate, and stochastic variations in the received input used for generation of the associated secure code. - View Dependent Claims (35, 36, 37)
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38. A method for authenticating a medium, comprising:
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(a) providing a medium having a plurality of elements, the elements being distinctive, detectable and irregular, each element being characterized by a determinable intrinsic attribute distinct from a two-dimensional coordinate representation of simple optical absorption or simple optical reflection intensity; (b) detecting an attribute and position of the plurality of elements, with respect to a positional reference; (c) generating an encrypted message including at least a portion of the attribute and position of the plurality of elements; and (d) recording the encrypted message in physical association with the medium. - View Dependent Claims (39, 40, 41)
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42. An authentication system comprising:
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(a) a medium comprising a plurality of physical elements, said plurality of physical elements having a spatial arrangement and respectively nonuniform optical characteristics distinct from a two-dimensional chroma-luminance map of said medium; (b) a detector, detecting a spatial arrangement of said nonuniform element characteristics of a said plurality of elements; (c) a processor for generating an encrypted message including at least a partial description of at least a portion of said arrangement of nonuniform element characteristics of the plurality of elements; and (d) a recording system for recording the encrypted message in physical association with the medium. - View Dependent Claims (43, 44)
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45. An authentication system comprising:
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(a) a medium having a plurality of elements, said plurality of elements having irregularities; (b) a detector, detecting said irregularities; (c) a processor for generating a plurality of encrypted messages, each defining at least a portion of said irregularities, said plurality of messages differing in respective algorithmic degree of computational complexity; and (d) a recording system for recording the encrypted message in physical association with the medium.
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46. A method for authenticating a medium, comprising:
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(a) providing a medium having a plurality of elements, each element being characterized by a determinable irregular intrinsic attribute distinct from a two-dimensional coordinate representation of simple optical absorption or simple optical reflection intensity; (b) detecting the irregular attribute and position of the plurality of elements, with respect to a positional reference; (c) decrypting an encrypted message including at least a portion of the attribute and position of the plurality of elements, recorded in physical association with the medium; and (d) comparing the decrypted message with the detected attribute and position, to determine an authenticity of the medium. - View Dependent Claims (47, 48, 49)
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50. A method for authenticating a medium, comprising:
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(a) providing a medium having a plurality of elements, said plurality of elements having irregularities; (b) detecting an the irregularities; (c) decrypting an encrypted message, selected from one or more of a plurality of encrypted messages recorded in physical association with the medium, each including at least a portion of the attribute and position of the plurality of elements, said plurality of messages differing in respective algorithmic degree of computational complexity; and (d) comparing at least one decrypted message with the detected attribute and position, to determine an authenticity of the medium.
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51. A self-authenticating medium, comprising:
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(a) a plurality of elements, said plurality of elements having irregularities, each element having an associated vector characteristic intrinsic attribute; and (b) an encrypted message recorded in physical association with said medium, said message describing at least a portion of the vector characteristic and position of the plurality of elements. - View Dependent Claims (52)
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Specification