Abstract: A tachograph and a toll onboard unit as communication partners, which each have a data interface for a data communication via a vehicle data bus to which the communication partners are coupled. The tachograph and/or the toll onboard unit are implemented as a transmitter of data to ascertain a cryptographic check value as a function of user data, which are to be transmitted to the communication partner, and to transmit the cryptographic check value in addition to the user data to the communication partner. The toll onboard unit or the tachograph, respectively, as a receiver of data, is implemented to receive user data and the cryptographic check value associated with the user data from the communication partner and to check the received user data for corruption as a function of the received cryptographic check value.

Abstract: A docking terminal for controlling a plurality of vehicle functions of a motor vehicle by a control device connected to the vehicle, including a wireless data exchange with a control device, an input unit, and an energy store. A greater range of functions, which can also include control of safety-relevant vehicle functions, is facilitated by the connection of the wireless data exchange to a data processing system integrated in the docking terminal. The system is designed to use at least one cryptologic method.

Abstract: A mobile interface for controlling a plurality of vehicle functions in a motor vehicle using a controller connected to the vehicle, having a wireless data interchange with a controller, an input apparatus, and an energy store. By virtue of the wireless data interchange being connected to a data processing unit integrated in the mobile interface and which is designed to apply at least one cryptological method, a greater scope of functions becomes possible that can also include control of safety-relevant vehicle functions.

Abstract: An integrated circuit (1) is provided with function modules (2) which comprise a central processing unit (4) for treating data and executing a program and a cache memory (5). Until now, it was complicated and costly to ensure the manipulation security of the modules. The function modules (2) comprise an encoding unit (6) for data encoding and decoding.

Abstract: An energy storage unit, particularly for a motor vehicle, has an application unit that is configured to detect and/or process predetermined operating parameters of the energy storage unit. The energy storage unit further includes a safety unit that is configured to cryptologically process the detected and/or processed operating parameters. The energy storage unit also includes a communication interface for making the cryptologically processed operating parameters available.

Abstract: A docking terminal for controlling a plurality of vehicle functions of a motor vehicle by a control device connected to the vehicle, including a wireless data exchange with a control device, an input unit, and an energy store. A greater range of functions, which can also include control of safety-relevant vehicle functions, is facilitated by the connection of the wireless data exchange to a data processing system integrated in the docking terminal. The system is designed to use at least one cryptologic method.

Abstract: A method for operating a volatile memory supplied with a supply signal arranged either as a first supply signal of a first supply signal source or a second supply signal of a second supply signal source. If an available first supply signal is present it is used otherwise the second supply signal is used. The supply signal is supplied, based on a switch position of a switching element to the volatile memory. During a detected interrupted first supply signal, the switch position of the switching element is for a predetermined period of time such that the supply signal is supplied to the volatile memory. After expiry of the predetermined period of time, the switch position of the switching element is predetermined such that the volatile memory is decoupled electrically from the supply signal.

Abstract: A vehicle data recording device including a vehicle data recording unit which has a housing, a data memory arranged outside the housing, and a unit interface with a connection for the data memory is provided in an outer wall of the housing. The data memory is connected to the unit interface by a connecting cable. To ensure not only that the data memory is reliably arranged in the vehicle data recording device but also that the data memory can be easily removed from the device, the housing has, on a housing outer side, a mount that detachably supports the data memory.

Abstract: A mobile interface for controlling a plurality of vehicle functions in a motor vehicle using a controller connected to the vehicle, having a wireless data interchange with a controller, an input apparatus, and an energy store. By virtue of the wireless data interchange being connected to a data processing unit integrated in the mobile interface and which is designed to apply at least one cryptological method, a greater scope of functions becomes possible that can also include control of safety-relevant vehicle functions.

Abstract: A method for operating a volatile memory supplied with a supply signal arranged either as a first supply signal of a first supply signal source or a second supply signal of a second supply signal source. If an available first supply signal is present it is used otherwise the second supply signal is used. The supply signal is supplied, based on a switch position of a switching element to the volatile memory. During a detected interrupted first supply signal, the switch position of the switching element is for a predetermined period of time such that the supply signal is supplied to the volatile memory. After expiry of the predetermined period of time, the switch position of the switching element is predetermined such that the volatile memory is decoupled electrically from the supply signal.

Abstract: A tachograph and a toll onboard unit as communication partners, which each have a data interface for a data communication via a vehicle data bus to which the communication partners are coupled. The tachograph and/or the toll onboard unit are implemented as a transmitter of data to ascertain a cryptographic check value as a function of user data, which are to be transmitted to the communication partner, and to transmit the cryptographic check value in addition to the user data to the communication partner. The toll onboard unit or the tachograph, respectively, as a receiver of data, is implemented to receive user data and the cryptographic check value associated with the user data from the communication partner and to check the received user data for corruption as a function of the received cryptographic check value.

Abstract: An energy storage unit, particularly for a motor vehicle, has an application unit that is configured to detect and/or process predetermined operating parameters of the energy storage unit. The energy storage unit further includes a safety unit that is configured to cryptologically process the detected and/or processed operating parameters. The energy storage unit also includes a communication interface for making the cryptologically processed operating parameters available.

Abstract: A single-chip computer includes at least one first processor core and at least one second processor core constructed on a common chip. The at least one first and the at least one second processor cores are interconnected via a processor interface. Data can be read via a separate or common memory interface from a separate or common data memory respectively and/or stored in said data memory. The single-chip computer includes an encryption and decryption unit which is assigned to the at least one processor core and which is constructed and functionally arranged between the at least one second processor core and the memory interface in such a way that the data which can be exchanged between the at least one second processor core and the data memory can be encrypted and decrypted by the encryption and decryption unit.

Abstract: An integrated circuit (1) is provided with function modules (2) which comprise a central processing unit (4) for treating data and executing a program and a cache memory (5). Until now, it was complicated and costly to ensure the manipulation security of the modules. The function modules (2) comprise an encoding unit (6) for data encoding and decoding.

Abstract: A system (1) has a battery (2) provided with a first contact pole (9), a second contact pole (10) and two connection lines (3, 4) each of which has the first (11) and second (12) ends associated with the contact pole (9, 10) in such a way that one end is electrically connected to the pole on the first end (11, 12) and the other is connectable to a user on the second end (21, 22). In the presence of dangerous products, conventional systems involve short circuit risks resulting from inadmissible temperature development. A remedy is provided in which the first end (11) of the connection line (3) is assigned to the end of the first contact pole (9) and a constant-ohmic resistance (30) is electrically connected to the first contact pole (9).

Abstract: In a safety device for electronic devices in a vehicle, it is provided that a security module with a data memory is only accessible after prior authentication; that signatures of data of the devices are stored in the data memory; and that a comparator is provided for comparing the stored data with the data respectively read out from the devices.