Electronic marking

A method for initializing an electronic marking comprising the following steps:

• measuring at least one electrical property of one or more electrical sensor lines of the electronic marking via at least one secure cryptoprocessor configured for securely generating a digital signature, wherein the one or more electrical sensor lines are distinct from and arranged at least partly overlapping an antenna of the electronic marking, wherein the electronic marking comprises an electronic circuit arranged for permanent monitoring of the one or more electrical sensor lines;
• storing the at least one measured electrical property in a protected memory of the electronic marking;
• and
• deactivating a write access to the protected memory after storing.

A method for validating an electronic marking comprising the following steps:

• measuring at least one electrical property of one or more electrical sensor lines of the electronic marking via at least one secure cryptoprocessor configured for securely generating a digital signature, wherein the one or more electrical sensor lines are distinct from and arranged at least partly overlapping an antenna of the electronic marking, wherein the electronic marking comprises an electronic circuit arranged for permanent monitoring of the one or more electrical sensor lines;
• loading at least one stored electrical property, wherein the stored electrical property is stored in a protected memory of the electronic marking;
• comparing the at least one measured and the at least one loaded electrical property of the one or more electrical sensor lines;
• and
• invalidating the electronic marking, if a deviation outside a predetermined tolerance range is detected between the at least one stored and at least one loaded electrical properties.