| 摘要 |
For protecting a circuit 1 against a mechanical or electromagnetic attack, an active protection device attached to the circuit comprises: at least one generator 13, 14 for generating a magnetic field, at least one magnetic sensor S1, S2, S3, S4 for measuring a value of the magnetic field, an integrity circuit connected to the at least one magnetic sensor S1, S2, S3, S4 and to the circuit 1.
The integrity circuit activates a reaction procedure in the circuit if the measured value of the magnetic field made by the magnetic sensor is out of a values domain, the values domain being correlated to the generated magnetic field. |
