METHOD FOR PROTECTING DOCUMENTS, INCLUDING SECURITIES, AND FOR AUTHENTICATING THEM Russian patent published in 2003 - IPC

FIELD: means for recognition of authentic documents, including financial ones and securities, subject to risk of counterfeit. SUBSTANCE: method used not only for authenticating securities but also for controlling their circulation including confirmation of bearer's rights for their proper use involves document check-up by comparing identity mark of control security applied to document being protected with identity mark of mentioned security presented together with document for control, and data on reference security stored in data base. EFFECT: enhanced effectiveness of protection without raising cost of document production; enlarged functional capabilities. 1 cl