Abstract: A system for securing an electronic circuit including: plural regions, activity of each of which may be controlled; plural sensors integrated into the electronic circuit, each sensor being sensitive to variations in manufacturing process and to provide a measurement representative of a local activity of the electronic circuit; a processing unit including an integrity verification module configured to: determine, based on the measurements provided by the sensors, and for each of the regions, a partition of the sensors between sensors affected and sensors not affected by an activation of the region; compare each of the partitions with a model partition to detect possible presence of a hardware Trojan horse liable to infect the electronic circuit. The system can carry out an authentication of the electronic circuit by its intrinsic physical characteristics by response to a challenge or by generation of a key.

Abstract: A system for securing an electronic circuit including: plural regions, activity of each of which may be controlled; plural sensors integrated into the electronic circuit, each sensor being sensitive to variations in manufacturing process and to provide a measurement representative of a local activity of the electronic circuit; a processing unit including an integrity verification module configured to: determine, based on the measurements provided by the sensors, and for each of the regions, a partition of the sensors between sensors affected and sensors not affected by an activation of the region; compare each of the partitions with a model partition to detect possible presence of a hardware Trojan horse liable to infect the electronic circuit. The system can carry out an authentication of the electronic circuit by its intrinsic physical characteristics by response to a challenge or by generation of a key.

Abstract: A system comprising: an electronic circuit exhibiting, in operation, a value v of an operating physical quantity; a measurement device comprising: sensors embedded in the electronic circuit so as to provide raw measurements {Xm} sensitive to the value v of the operating physical quantity, and an output unit for providing useful measurements {X?n} on the basis of the raw measurements {Xm}; a distribution calculation device for determining a current distribution function F(x) associated with the useful measurements {X?n}; a memory wherein associations {Ak} are saved, each association Ak associating a model distribution function Fk(x) with a model value v*k of the operating physical quantity; and an estimation calculation device for determining an estimation {tilde over (v)} of the value v of the operating physical quantity on the basis of the current distribution function F(x) and at least a portion of the saved associations {Ak}.