Importance

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Abstract

A system is provided having a sensing device and a processor for determining a counterfeit security document. The security document has disposed thereon or therein coded data including a number of coded data portions. Each coded data portion is indicative of an identity of the security document and a part of a digital signature of at least a part of the identity which has a plurality of signature parts. The sensing device is configured to sense one of the coded data portions and generate, using the sensed coded data portion, indicating data indicative of the identity, the part of the signature and a signature part identifier. The processor is configured to determine a determined signature using the identity, a determined signature part using the determined signature and the signature part identifier, and whether the security document is counterfeit by comparing the determined signature part and the part of the signature.

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First Claim