METHOD FOR MAKING SECURE TRANSACTIONS AND AUTHENTICATION OF OBJECTS OR DOCUMENTS

摘要

The invention concerns a method for making secure transactions and authentication of objects or documents from a support (2) comprising a number (4) and a remote database (5) connected to a telecommunications network. An identifier (3) in the form of code of bubbles self-generated in chaotic manner whereof the characteristic is to be always unique and unreproducible is physically attached to the card or label (2) comprising a number (4) contained either on a magnetic track, or in the form of a barcode, or in an electronic label. A representation of said identifier in the form of an image (6) and/or digital signature (7) is stored in a remote database (5) at the same number (4) as the one on the support. Said identifier (3) constitutes a tamper-resistant link between the magnetic track (1) or the chip or RFID or code and the database (5). Upon a call (9) from the remote database (5) via the number (4) written on the card (2), the link is authenticated by comparing the representation of the identifier stored in said database (5) and the actual identifier (3). If they match, the transaction is authorized or the authentication validated. Two authentication modes are possible: the first is visual by visual comparison of the image signatures and the second is automatic by automatic comparison of the identifier digital signatures. The bubbles code can integrate the brand logo to be protected by superimposition.