Electronic devices with individual security circuits

A computer program product, the computer program product comprising:

• a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a computing system to cause the computing system to perform a method for manufacturing a batch of a plurality of items of an electronic device, each item including an enclosure mounted to a main surface of a respective carrier, the items comprising a plurality of corresponding main modules having a same functional structure substantially identical for the items, wherein the method comprises:
• defining, for each of a plurality of enclosures, at least one security electric circuit as part of an inner surface of the enclosure, the enclosure including an edge to mount to the main surface of the respective carrier and enclose, at least in part, a respective main module on the main surface of the respective carrier, the at least one security electric circuit defined as part of the inner surface of the enclosure being adapted to protect the respective item from tampering, and the security electric circuits defined for the plurality of enclosures having individual configurations substantially different among the plurality of enclosures for the items;
• determining one or more electric characteristics of each security electric circuit and using the determined one or more electric characteristics of each security electric circuit in configuring a monitoring circuit of the corresponding main module of the respective item, the monitoring circuit being adapted to monitor the corresponding security electric circuit for detecting the tampering, according to the determined electric characteristics of the corresponding at least one security electric circuit;
• and
• wherein the defining at least one security electric circuit comprises:
• storing an indication of a pool of candidate security electric circuits for the batch;
• and
• selecting the security electric circuit for the inner surface of each enclosure from among the pool of candidate security electric circuits.

A system for manufacturing a batch of a plurality of items of an electronic device, each item including an enclosure mounted to a main surface of a respective carrier, the items comprising a plurality of corresponding main modules having a same functional structure substantially identical for all the items, wherein the system comprises:

• a memory;
• and
• a processor communicatively coupled to the memory, wherein the system performs a method comprising:
• defining, for each of a plurality of enclosures, at least one security electric circuit as part of an inner surface of the enclosure, the enclosure including an edge to mount to the main surface of the respective carrier and enclose, at least in part, a respective main module on the main surface of the respective carrier, the at least one security electric circuit defined as part of the inner surface of the enclosure being adapted to protect the respective item from tampering, and the security electric circuits defined for the plurality of enclosures having individual configurations substantially different among the plurality of enclosures for the items;
• determining one or more electric characteristics of each security electric circuit and using the determined one or more electric characteristics of each security electric circuit in configuring a monitoring circuit of the corresponding main module of the respective item, the monitoring circuit being adapted to monitor the corresponding security electric circuit for detecting the tampering, according to the determined electric characteristics of the corresponding at least one security electric circuit;
• and
• wherein the defining at least one security electric circuit comprises:
• storing an indication of a pool of candidate security electric circuits for the batch;
• and
• selecting the security electric circuit for the inner surface of each enclosure from among the pool of candidate security electric circuits.