Method and apparatus for producing duplication- and...

Electrical computers and digital processing systems: support – Data processing protection using cryptography – Tamper resistant

Reexamination Certificate

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C235S487000, C713S172000

Reexamination Certificate

active

09397503

ABSTRACT:
A method (and system) for guaranteeing authenticity of an object, includes providing a sample of material obtainable only by at least one of chemical and physical processes such that the sample is random and not reproducible, associating a number reproducibly to the sample by using a specific reader, and forming at least one coded version of the number, the at least one coded version being obtained by a key signature, and the version being recorded into an area of the object.

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