Method, systems, and media for identifying whether a machine readable mark may contain sensitive data
First Claim
1. A method of producing an attested document, said method comprising:
- reading encoded data in a document that is in a form other than human-readable form;
determining an amount of content in the encoded data that appears in human-readable form in the document;
determining a seal that attests to the amount of content in the encoded data that appears in human-readable form; and
marking the document with the seal.
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Accused Products
Abstract
Embodiments of the present invention relate to attesting a document that contains encoded data, such as a barcode or DataGlyph. When a document contains encoded data that is not in human-readable form, the document is checked to determine whether content in the encoded data appears somewhere in the document in human-readable form. Based on the amount of content that appears in the document, the document may be marked with a seal that attests to the amount of content in the encoded data that appears in human-readable form. The seal may be visually distinctive to facilitate easy recognition by a user or device.
21 Citations
21 Claims
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1. A method of producing an attested document, said method comprising:
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reading encoded data in a document that is in a form other than human-readable form;
determining an amount of content in the encoded data that appears in human-readable form in the document;
determining a seal that attests to the amount of content in the encoded data that appears in human-readable form; and
marking the document with the seal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of verifying a document, wherein the document contains encoded data that is in a form other than human-readable form, said method comprising:
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identifying a seal on the document, the seal comprising data about the encoded data on the document;
reading the seal;
determining a digital signature based on the document; and
verifying that content in the encoded data appears in human-readable form on the document based on a comparison of the digital signature with the seal. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A system configured to produce attested documents, said system, comprising:
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at least one processor configured to read encoded data in a document that is in a form other than human-readable form, determine an amount of content in the encoded data that appears in human-readable form in the document, and determine a seal that attests to the amount of content in the encoded data that appears in human-readable form; and
at least one printer that is configured to mark the document with the seal. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification