Document authentication using the physical characteristics of underlying physical media
First Claim
1. A method for facilitating the authentication of a document, comprising the steps of:
- generating a document key by examining one or more physical attributes of a physical media that underlies the document; and
encoding the document key with an element of an image printed on the physical media to produce an encoded document key, the encoded document key linking the unique physical attribute of the physical media to the image printed on the physical media.
2 Assignments
0 Petitions
Accused Products
Abstract
A method for authenticating a document in which a document key for the document is generated by examining one or more attributes of a physical media that underlies the document. An original image is then imparted onto the physical media so that the original image is associated with the document key in a way that enables a subsequent recovery of the document key from the original image. This tying together of the underlying physical media, through the document key, with an original image enables detection of a forgery which was performed either through an alteration of the original image, or ink stripping and re-printing, or a printing of the original image on another physical media.
45 Citations
35 Claims
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1. A method for facilitating the authentication of a document, comprising the steps of:
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generating a document key by examining one or more physical attributes of a physical media that underlies the document; and
encoding the document key with an element of an image printed on the physical media to produce an encoded document key, the encoded document key linking the unique physical attribute of the physical media to the image printed on the physical media. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for facilitating validation of a physical document, comprising:
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generating a document key based on a unique physical attribute of a physical media;
encoding the document key with an element of an image printed on the physical media to produce an encoded document key, the encoded document key linking the unique physical attribute of the physical media to the image printed on the physical media; and
storing the encoded document key, the encoded document key being determinable from the physical media and the image printed on the physical media. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A method for authenticating a physical document, comprising:
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generating a document key based on a unique physical attribute of a physical media;
encoding the document key with an element of an image printed on the physical media to produce an encoded document key, the encoded document key linking the unique physical attribute of the physical media to the image printed on the physical media; and
comparing the encoded document key with a previously stored encoded document key to determine whether the encoded document key and the previously stored encoded document key match to indicate that the physical document is authentic. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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30. An apparatus for facilitating validation of a physical document, comprising:
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a document key generator adapted to generate a document key based on a unique physical attribute of a physical media;
an encoder adapted to encode the document key with an element of an image printed on the physical media to produce an encoded document key, the encoded document key linking the unique physical attribute of the physical media to the image printed on the physical media; and
storage media adapted to store the encoded document key, the encoded document key being determinable from the physical media and the image printed on the physical media. - View Dependent Claims (31, 32)
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33. A system for facilitating validation of a physical document, comprising:
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means for generating a document key based on a unique physical attribute of a physical media;
means for encoding the document key with an element of an image printed on the physical media to produce an encoded document key, the encoded document key linking the unique physical attribute of the physical media to the image printed on the physical media; and
means for storing the encoded document key, the encoded document key being determinable from the physical media and the image printed on the physical media. - View Dependent Claims (34, 35)
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Specification