Patent ID: 8534543
Filing Date: 2013-09-17
Classification: G06K

Abstract:
1. A system for protecting an item of a solid oral dosage form of a human drug product from counterfeiting, the system comprising at least one computing device configured to: analyze a first digital image of an at least partially random physical property of the item to create a numerical representation of the first digital image of the at least partially random physical property of the item, the at least partially random physical property being usable to distinguish the item from other items of the solid oral dosage form of the human drug product; execute a cryptographic algorithm using at least the numerical representation of the first digital image of the at least partially random physical property of the item and a first cryptographic key associated with a source of the item as inputs to the cryptographic algorithm, the cryptographic algorithm generating a digital signature that can be used to verify the authenticity of the item and to authenticate the source of the item; create a digital certificate including the digital signature, the digital signature being readable from the digital certificate by a camera of a mobile computing device; apply the digital certificate to the item so as not to obscure the at least partially random physical property of the item; analyze a second digital image of the at least partially random physical property of the item; and at the mobile computing device, authenticate the item based on the analyzed second digital image and the digital certificate using a second cryptographic key associated with the manufacturer, wherein the first and second cryptographic keys are different from one another but related to one another, and the first cryptographic key is a secret key not accessible to the mobile computing device.