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A Method and Apparatus for Securing Visual Identity Documents

IP.com Disclosure Number: IPCOM000125369D
Original Publication Date: 2005-May-31
Included in the Prior Art Database: 2005-May-31
Document File: 4 page(s) / 80K

Publishing Venue

IBM

Abstract

This idea proposes a method to increase the security of a non chipped visual id document. The method involves combining the textual content of the document together with information content of the image, digitally signing this information, and applying this information together with its signature in machine readable form to the document. The method allows the authenticity and integrity of the data to be machine verified. The method requires a smaller amount of data to be stored compared to comparable methods

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A Method and Apparatus for Securing Visual Identity Documents

The problem the idea solves relates to the unauthorized creation and manipulation of visual identity documents such as passports, id-cards and drivers licences.

Exisiting basic solutions rely primarily on physical security measures applied during card/passport manufacturing. Examples include security inks, complex print patterns, holograms etc. The problems associated with this approach include: Many printed security measures can be easily forged using high resolution scanner/printers; Physical measures are not content related but the same on every card; Document content cannot be machine checked .

Other more sophisticated solutions store a digitally signed image either on a chip or within a large 2-D barcode printed on the document. Problems with this approach include: This method involves a large amount of data and requires a large 2-d barcode; While the authenticity of the image can be machine checked, the image itself has to be manually compared.

The basic idea is a method to increase the security of a non chipped visual id document. The method involves combining the textual content of the document together with information content of the image, digitally signing this information, and applying this information together with its signature in machine readable form to the document.

The method allows the authenticity and integrity of the data to be machine verified.

The method requires a smaller amount of data to be stored compared to comparable methods

Digitally signing the information means that any modification can be recognized.

In order to machine verify the document image the document has to be converted into a digital format, typically using a document scanner. Variations in the scanned image mean...