Digital authentication with analog documents
First Claim
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1. Apparatus which authenticates a digital representation from which an analog form may be made, the apparatus comprising:
- an authenticator which uses semantic information in the digital representation that will be present in the analog form to produce first authentication information; and
an incorporator which incorporates the first authentication information into the digital representation such that the first authentication information is preserved in the analog form and the semantic information remains useful in the analog form to produce second authentication information which is comparable to the first authentication information, whereby the first authentication information may be retrieved from the analog form and compared with the second authentication information produced from the semantic information in the analog form to determine authenticity of the analog form.
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Abstract
Security of photographic identification documents is enhanced by embedding within the photographic image encoded information that may be correlated to other information pertaining to the individual represented by the image, such other information being, for example, printed on the document adjacent to the photograph.
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Citations
51 Claims
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1. Apparatus which authenticates a digital representation from which an analog form may be made, the apparatus comprising:
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an authenticator which uses semantic information in the digital representation that will be present in the analog form to produce first authentication information; and
an incorporator which incorporates the first authentication information into the digital representation such that the first authentication information is preserved in the analog form and the semantic information remains useful in the analog form to produce second authentication information which is comparable to the first authentication information, whereby the first authentication information may be retrieved from the analog form and compared with the second authentication information produced from the semantic information in the analog form to determine authenticity of the analog form. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. Apparatus for determining authenticity of an analog form, the analog form containing first authentication information that is produced using semantic information present in the analog form and that is incorporated into the analog form such that the semantic information remains useful in the analog form to produce second authentication information which is comparable to the first authentication information,
the apparatus comprising: -
a semantic information recognizer that recognizes the semantic information in the analog form;
an authentication information reader that reads the first authentication information from the analog form; and
an authenticator that computes the second authentication information from the recognized semantic information and determines whether the analog form is authentic by comparing the first authentication information with the second authentication information. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 30, 31, 32, 33, 34, 35, 36, 37, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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23. Apparatus for determining authenticity of an analog form, the analog form including first authentication information that is produced using human readable information present in the analog form and that is incorporated into the analog form such that the human readable information remains useful in the analog form to produce second authentication information which is comparable to the first authentication information,
the apparatus comprising: -
a human readable information reader that reads the human readable information in the analog form;
an authentication information reader that reads the first authentication information from the analog form; and
an authenticator that computes the second authentication information from the human readable information and determines whether the analog form is authentic by comparing the first authentication information with the second authentication information.
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29. Apparatus which authenticates a digital representation from which an analog form may be made, the apparatus comprising:
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an authenticator which uses printed information in the digital representation that will be present in the analog form to produce first authentication information; and
an incorporator which incorporates the first authentication information into the digital representation such that the first authentication information is preserved in the analog form and the printed information remains useful in the analog form to produce second authentication information which is comparable to the first authentication information, whereby the first authentication information may be retrieved from the analog form and compared with the second authentication information produced from the printed information in the analog form to determine authenticity of the analog form.
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38. A method of authenticating a digital representation from which an analog form may be made,
the method comprising the steps of: -
producing first authentication information from semantic information in the digital representation that will be present in the analog form; and
incorporating the first authentication information into the digital representation such that the first authentication information is preserved in the analog form and the semantic information remains useful in the analog form to produce second authentication information which is comparable to the first authentic information, whereby the first authentication information may be retrieved from the analog form and compared with the second authentication information produced from the semantic information in the analog form to determine authenticity of the analog form.
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39. A method of determining authenticity of an analog form, the analog form containing first authentication information that is produced using semantic information present in the analog form and that is incorporated into the analog form such that the semantic information remains useful in the analog form to produce second authentication information which is comparable to the first authentication information, the method comprising the steps of:
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recognizing the semantic information in the analog form;
reading the first authentication information;
computing second authentication information from the recognized semantic information; and
determining whether the analog form is authentic by comparing the first authentication information with the second authentication information.
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Specification