Method and apparatus for transaction card security utilizing embedded image data
First Claim
1. A personal identification related document reader system comprising:
- means for reading a machine readable area of a personal identification related document;
an optical scanner for scanning a printed image area of the personal identification related document;
means for extracting data embedded with an image in the printed image area;
a hash algorithm for deriving information from the machine readable area;
means for comparing the information derived from the machine readable area to the extracted data embedded within the printed image area; and
an indicator device which informs a user if the information derived from the machine readable area and the extracted data embedded within the printed image area are within a predetermined level of agreement, the predetermined level of agreement being less than 100 percent.
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Accused Products
Abstract
A highly secure personal identification related document is achieved by having an area which contains machine readable information and also having a printed region having embedded data in the image printed thereon. The machine readable information as recorded has been encoded using a secure hash algorithm. For legitimate personal identification related documents, the machine readable data and the embedded data are identical information. The personal identification related document is used in conjunction with a reader system which includes a reader for the machine readable data, an optical scanner for scanning the image and data embedded therein, and a processor. The machine readable data is delivered to the processor which applies the secure hash algorithm thereto to generate a first data set. The digitized image data retrieved with the optical scanner is also delivered to the processor and the embedded data is retrieved therefrom to generate a second data set. The two data streams are then passed to a comparator to determine if there is an adequate match to verify authenticity of the document.
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Citations
10 Claims
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1. A personal identification related document reader system comprising:
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means for reading a machine readable area of a personal identification related document;
an optical scanner for scanning a printed image area of the personal identification related document;
means for extracting data embedded with an image in the printed image area;
a hash algorithm for deriving information from the machine readable area;
means for comparing the information derived from the machine readable area to the extracted data embedded within the printed image area; and
an indicator device which informs a user if the information derived from the machine readable area and the extracted data embedded within the printed image area are within a predetermined level of agreement, the predetermined level of agreement being less than 100 percent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
the machine readable information is in a magnetic strip.
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3. A personal identification related document reader system as recited in claim 1 wherein:
the machine readable information is in a two-dimensional bar code.
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4. A personal identification related document reader system as recited in claim 1 wherein:
the machine readable information is in an integrated circuit.
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5. A personal identification related document reader system as recited in claim 1 wherein:
the machine readable information is in a data glyph.
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6. A personal identification related document as recited in claim 1 wherein:
the printed image information in the printed region is an image of the holder the personal identification related document.
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7. A personal identification related document reader system as recited in claim 1 further comprising:
a personal identification related document transport system.
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8. A personal identification related document reader system as recited in claim 7 wherein:
said personal identification related document is a transaction card.
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9. A method for verifying authenticity of a personal identification related document having a hash algorithm encoded first data set recorded on a machine readable area and a second data set derived from the first data set embedded in an image printed on a printed region, the method comprising the steps of:
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scanning the image in the printed region;
extracting the second data set from the image in the printed region;
reading the encoded first data set;
decoding the hash algorithm encoded first data set;
deriving the second data set from the first data set of said decoding step;
comparing the second data set from said deriving step with the second data set from said extracting step; and
determining whether the second data set from said deriving step and the first data set from said extracting step are within a predetermined level of agreement, the predetermined level of agreement being less than 100 percent. - View Dependent Claims (10)
the image to be printed onto the printed region is an image of the holder the personal identification related document.
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Specification