System and method for production and authentication of original documents
First Claim
1. A method of producing a self-authenticating document, comprising:
- providing a document stock having at least one anticounterfeit feature and having preprinted thereon an essentially unique identifier;
providing information content for the document comprising at least one of text and graphic images;
generating a digital signature of said information content;
producing a self-authenticating message comprising a cryptographic combination of the digital signature and the essentially unique identifier; and
printing the information content and the self-authenticating message on the document stock by means of a computer printer.
3 Assignments
0 Petitions
Accused Products
Abstract
A system and method for authenticating documents and content thereof. A counterfeit resistant document recording medium is provided, having thereon a predefined unique document identifier and at least one security feature. The recording medium is thereafter imprinted with document content, which typically varies between documents. The document content is stored in a database, indexed by an associated document identifier. The document may then be authenticated by checking the security feature and comparing the stored document content with a perceived document content. The system provides a number of opportunities for commercial exploitation, including sales of identified recording media, recording of information in a database, on-line authentication transactions, differential accounting for document validations and counterfeit identifications, imprinting devices, AND authentication devices. The system prevents counterfeiting of valuable documents through casual unit by providing both physical and logical security.
458 Citations
18 Claims
-
1. A method of producing a self-authenticating document, comprising:
-
providing a document stock having at least one anticounterfeit feature and having preprinted thereon an essentially unique identifier; providing information content for the document comprising at least one of text and graphic images; generating a digital signature of said information content; producing a self-authenticating message comprising a cryptographic combination of the digital signature and the essentially unique identifier; and printing the information content and the self-authenticating message on the document stock by means of a computer printer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. An authenticatable recording medium, comprising:
-
a document stock having at least one counterfeit resistant feature; an imprinted unique identifier on the document stock; an information content recording surface with a blank area suitable for printing at least one of text and graphic images by means of a computer printer and a blank area for printing a self-authenticating message; information content recorded on the content recording surface, said information content defining a distinct identification element; and a self-authenticating message recorded on the content recording surface for authenticating the recording medium with the information content and the unique identifier, said message comprising a cryptographic combination of the unique identifier and the distinct identification element. - View Dependent Claims (16, 17, 18)
-
Specification