METHOD FOR CODING AND DECODING INFORMATION ASSOCIATED WITH AN ITEM

摘要

A method for coding and decoding information (10) associated with an item includes the steps of coding the information (10) associated with the item through an encryption key (20) and a first encryption algorithm, so as to generate a code (50) associated with the information (10), the code being realized through at least one material, typically an ink, having predefined electric properties (30) and being readable and decryptable by applying a variable electric field, and of applying the code (50) to the item, wherein the method generates encrypted information (95) which can be obtained by encrypting variable information (70) through a second encryption algorithm which uses, as an encryption key, the information (10) associated with the item, and applies the variable information (70) to the item or to a second item associated with the item.

主权项

1. A method for coding information associated with an item, comprising the steps of coding said information associated with said item through an encryption key and a first encryption algorithm, so as to generate a code associated with said information, said code being realized through at least one material having predefined electric properties and being readable and decryptable by applying a variable electric field, and of applying said code to said item, wherein encrypted information is generated which can be obtained by encrypting variable information through a second encryption algorithm which uses, as an encryption key, said information associated with said item, and in that said variable information is applied to said item or to a second item associated with said item.