Electronic identification system with anti-tampering protection

摘要

An electronic identity device for securing to e.g. a vehicle is intended to prevent the identity of the equipment (vehicle) being changed unknowingly. The device comprises at least a control processor (10) having a memory containing accessible data unique to the vehicle (e.g. vehicle chassis number and/or engine number), and preferably a slave processor (20). The device also comprises means generating a security signal end means for detecting any lack of integrity of the security signal to generate a tamper warning signal. The security signal is generated repeatedly irrespective of whether the vehicle is in operation. The security signal is transmitted over fibre optic cabling (18) adhered to the vehicle. Any attempt to remove the electronic device or tamper with the cabling will corrupt the security signal and therefore generate a tamper warning signal.