METHOD AND DEVICE FOR MARKING OF MANUFACTURED OBJECTS Russian patent published in 2016 - IPC G06K5/00 G06Q10/06 H04L9/32 G06Q30/00 

FIELD: cryptography; data processing.

SUBSTANCE: invention relates to marking of manufactured items. Method of marking manufactured objects, which involves the following: providing cryptographic key in inactive state in a certain point in the supply chain made of objects; provided in the centre of checking cryptographic key in active state and activation code for activation of cryptographic key in inactive state, for generating a cryptographic key in active state; providing activation code in a certain point in the supply chain in response to transmission of information from the point of supply, relating to the received cryptographic key, code activation to activate the cryptographic key in inactive state in the circuit of the point of supply for generating a cryptographic key in active state, wherein the step of providing a code point in the supply chain comprises transmitting from the centre of activation in point in the supply chain; generated at the point of supply chain identification (ID) code for each made object ID code is removed from the cryptographic key in active state and dynamic key generated for each batch of manufactured items; providing dynamic switch for each batch of manufactured items in the centre; marked each made object using ID code; and number of applied as a marker ID codes on made objects, and wherein the centre of check codes code activation using public key of asymmetric key pair, associated with a cryptographic key certificate, so that activation code can be decrypted point in the circuit of delivery, using a private key of asymmetric key pair, associated with a cryptographic key certificate.

EFFECT: improved method of marking made objects, which enables to check payment taxes, checking the volume of production and authentication of manufactured items.

15 cl, 6 dwg