A method for manipulation protection of sensor data and sensor for this purpose

The invention relates to a process for a manipulation protection of sensor data and a sensor for this purpose. In this case, is sent as part of an authentication of the sensor a unique number used by a controller to the sensor, wherein the sensor generates a cryptographic authentication message using the number used once and at least a first part of the cryptographic authentication message sends to the control unit. Further, the sensor data is provided with a cryptographic integrity protection, wherein the sensor data time-variant parameters are added and wherein the sensor data with the cryptographic integrity protection and the added time-variant parameters are sent from the sensor to the control unit. In this case, at least a second part of the cryptographic authentication message and for computing the cryptographic integrity protection, at least a third part of the cryptographic authentication message is used for the calculation of initial parameters and the time variant parameters are calculated using the initial parameters.