SYSTEM AND METHOD FOR SECURING AN ELECTRONIC CIRCUIT
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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.
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Citations
28 Claims
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1-14. -14. (canceled)
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15. A system for securing an electronic circuit comprising:
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plural regions, activity of which may be controlled; a plurality of 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 comprising 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. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method for securing an electronic circuit including plural regions in which activity of each region can be controlled, the method comprising:
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using measurements supplied by a plurality of sensors integrated into the electronic circuit, each sensor being sensitive to variations in manufacturing process and configured to supply a measurement representative of a local activity of the electronic circuit, to determine for each region, a partition of the sensors between sensors that are affected by activation of the region and sensors that are not affected by activation of the region; comparing the partitions with a model partition to detect possible presence of a hardware Trojan horse liable to infect the electronic circuit. - View Dependent Claims (28)
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Specification