Abstract: A method is disclosed to secure the operation of a vehicle. To detect any tampering during the communication of information or command, encrypting and authenticating devices are placed on the two ends of a communication channel. On the first end, an encryption device generates a first packet by encrypting the information using a random variable. The first packet and the information are communicated to the second end of the communication channel. On the second end, the authenticating device generates its own packet by encrypting the information using the random variable; then it compares the two packets and pronounces the information authentic if the two packets are identical. Any tampering with the information or the first packet will be detected and blocked by the authenticating device. Secured sensor and secure actuator are also provided.

Abstract: Authentication of a product could be accomplished by utilizing encryption and decryption engines onboard two integrated circuits namely a DECENC chip and a READER chip. A unique serial number in either an encrypted or un-encrypted format is programmed into eFuses, or OTP devices on board the DECENC chip where this chip is then attached to the product. During the authentication procedure, the encrypted and decrypted serial number on board the DECENC chip is transferred to the READER chip. The READER chip subsequently performs a decryption of the serial number from the first chip if this serial number is in encrypted form or performs an encryption of the serial number from the first chip if this serial number is in un-encrypted form. The READER chip then compares its result of decryption or encryption against the corresponding decrypted or encrypted versions of the serial number received from the DECENC chip.

Abstract: Authentication of a product could be accomplished by utilizing encryption and decryption engines onboard two integrated circuits namely a DECENC chip and a READER chip. A unique serial number in either an encrypted or un-encrypted format is programmed into eFuses, or OTP devices on board the DECENC chip where this chip is then attached to the product. During the authentication procedure, the encrypted and decrypted serial number on board the DECENC chip is transferred to the READER chip. The READER chip subsequently performs a decryption of the serial number from the first chip if this serial number is in encrypted form or performs an encryption of the serial number from the first chip if this serial number is in un-encrypted form. The READER chip then compares its result of decryption or encryption against the corresponding decrypted or encrypted versions of the serial number received from the DECENC chip.