METHOD OF CODED MARKING OF A PRODUCT OF SMALL SIZE, AND MARKED PRODUCT OBTAINED ACCORDING TO SAID METHOD
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Abstract
The method is for coded marking of a product of small size, such as horological or jewelry product (10). The method consists in carrying out a first mathematical operation of encrypting an identifier (13), such as a serial number of the product to be marked using a specific security algorithm key to obtain a first authenticator. The first authenticator includes a first data length defined by a first large number of alphanumerical characters. This first authenticator is encrypted using a second mathematical operation using a Hash type function into a second authenticator. This second authenticator includes a second data length defined by a second reduced number of alphanumerical characters shorter than the first number of characters. The second authenticator is converted into a coded image, which is preferably a two dimensional barcode (11) so as to be placed on the product as the coded mark in order to allow said product to be authenticated.
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Citations
25 Claims
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1-12. -12. (canceled)
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13. A method of coded marking of a horological or jewelry product for authenticating the same, said method consisting in carrying out a first mathematical operation of encrypting an identifier of the product to be marked using a specific security algorithm key to obtain a first authenticator, wherein the method also includes steps of:
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encrypting the first authenticator of a first data length into a second authenticator using a second mathematical operation using a Hash type function, the second authenticator, which does not allow the identifier to be found directly, comprising a second data length shorter than the first data length, converting the second authenticator into a coded image, and placing the coded image on the product as the coded mark. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification