Patent ID: 11921834
Assignee: STMICROELECTRONICS (ROUSSET) SAS
Field: Computer technology (Electrical engineering)
Classification: CPC G  B | IPC B  G

Claim 10:
11. A device, comprising:
an interface, which, in operation, sends and receives signals; and
a first electronic circuit coupled to the interface, wherein the first electronic circuit, in operation:
receives, via the interface, a request to generate a first digital signature, the request identifying code executable by the first electronic circuit; and
generates the first digital signature by combining digital states of a plurality of electric nodes distributed within the first electronic circuit according to a topography, the first digital signature to be compared with a second digital signature generated by a second electronic circuit of a second device coupled to the interface, the second digital signature being generated based on digital states of a plurality of electric nodes distributed within the second electronic circuit according to the topography, wherein the first digital signature is calculated in parallel with execution of the identified code by the first electronic circuit, the execution of the code influencing the digital states of all or part of the plurality of electric nodes of the first electronic circuit.