Coded data associated with an object and encoding a distributed signature
First Claim
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1. Apparatus for identifying an object, the apparatus comprising:
- means for sensing coded data provided on a plurality of regions of a surface associated with the object, each region encoding a respective signature fragment, the plurality of signature fragments jointly forming a signature, the signature being an encrypted identity of said object;
means for determining, from the coded data of each sensed region, the respective signature fragment, and a signature fragment identifier associated with the signature fragment of the sensed region;
means for determining a determined signature by arranging the plurality of signature fragments according to their associated signature fragment identifiers; and
means for decrypting the determined signature to obtain an identity of said object.
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Abstract
An object associated with a surface that has coded data disposed thereon or therein. The coded data includes a number of coded data portions, each of which encodes an identity of the object. In addition, each coded data portion encodes at least part of a signature that is a digital signature of at least part of the identity. This allows the coded data to be used to both identify and authenticate the object.
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Citations
5 Claims
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1. Apparatus for identifying an object, the apparatus comprising:
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means for sensing coded data provided on a plurality of regions of a surface associated with the object, each region encoding a respective signature fragment, the plurality of signature fragments jointly forming a signature, the signature being an encrypted identity of said object; means for determining, from the coded data of each sensed region, the respective signature fragment, and a signature fragment identifier associated with the signature fragment of the sensed region; means for determining a determined signature by arranging the plurality of signature fragments according to their associated signature fragment identifiers; and means for decrypting the determined signature to obtain an identity of said object. - View Dependent Claims (2, 3, 4, 5)
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Specification