| 摘要 |
<p>The present invention refers to a process and system for product authentication by off-line means. According to one embodiment of the present invention, the authentication process comprises the steps of: (i) selection for each product a string of characters (20) to identify it; (ii) fixing said string of characters to the product; (iii) using a checker (31) to retrieve information from said string of characters at the moment of checking the product's authenticity and to check the validity of said string of characters retrieved; (iv) displaying a message dependent on the result of said validity check; (v) updating the indication of the validity of said string of characters in a data-storage unit (34); and (vi) periodically updating in said data-storage unit the indications of validity of said string of characters and of strings of characters that identify other products.</p> |
