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

Claim 28:
29. A device, comprising:
an interface, which, in operation, sends and receives signals; and
a first electronic circuit coupled to the interface and including a plurality of electric nodes distributed according to a topography within the first electronic circuit, wherein the first electronic circuit, in operation:
generates a first digital signature, the generating of the first digital signature including:
executing code, the executing influencing digital states of all or part of the electric nodes of the first electronic circuit; and
in parallel with the executing of the code, combining digital states of the plurality of electric nodes distributed, according to the topography, within the first electronic circuit;

transmits, via the interface, a request to generate a second digital signature by combining digital states of a second plurality of electric nodes distributed according to the topography within a second electronic device, the request identifying or including the code; and
in response to receipt of the second digital signature, compares the first digital signature to the second digital signature.