Abstract: A data-processing system having at least one operating memory holding operating data is provided with a protection unit having an execution environment protected from unauthorized access. At least one monitoring logic in the execution environment is connected to the operating memory for monitoring unauthorized modifications, access, or similar protection violations of the operating data stored in the operating memory and for generating an output on detection of such a protection violation. A protection logic in the execution environment holds replacement data capable of replacing the operating data and is connected to the monitoring logic for, on generation of the output, providing to the operating memory the replacement data for the operation or for a substitute operation of the data-processing system.

Abstract: An electric wiring system of a motor vehicle with several control devices that communicate with each other via a data bus, and with an immobilizer is provided. In order to create an electric wiring system of a motor vehicle that includes an immobilizer with high reliability the immobilizer includes at least a first and a second control device from the plurality of control devices and an authentication apparatus, in particular an authentication control device. The authentication information of the plurality of control devices is supplied via the data bus to the authentication apparatus. The authentication cancels the immobilizer of the vehicle when the authentication information transmitted from the first and the second control device corresponds to the authentication information expected for the particular control devices.

Abstract: A system and method are provided for direct data exchange between two or more vehicles for transmission of data relating to events having a negative effect on driving safety, via wireless communication such as WLAN in particular. Unambiguous identification information is assigned to each vehicle. To increase acceptance of such a system, the identification information of the respective vehicle is temporary and is formed on the basis of the current status of the vehicle.

Abstract: A method, system, and computer program product for updating and/or expanding the functionality of the sequence control of at least one control unit of a motor vehicle are provided. In accordance with the method, a first data may be read from a first control unit and a second data may be read from a second control unit. A first check in the vehicle may be performed to ascertain whether the version of the sequence control currently running in the second control unit corresponds to a predetermined version of a sequence control or is even more current than the predetermined version. If the outcome of the first check is positive, a more current version in comparison with the version of the sequence control currently running in the first control unit may be saved and/or a version which expands the functionality may be saved in the first control unit.

Abstract: A method for authenticating a software package, which is provided by a software supplier and which contains a software component that can be loaded into a terminal. The software component is provided with a first authentication suffix, which is verified in order to carry out an authenticity test in the terminal. A higher-level authenticating site is provided, performing authenticating measures on the software package to increase security, wherein the measures performed by the higher-level authenticating site include providing the software package with at least one second authentication suffix instead of the first authentication suffix after successful checking of the software package provided by the software provider and including the first authentication suffix in addition to the software component of the software package.

Abstract: An electric wiring system of a motor vehicle with several control devices that communicate with each other via a data bus, and with an immobilizer is provided. In order to create an electric wiring system of a motor vehicle that includes an immobilizer with high reliability the immobilizer includes at least a first and a second control device from the plurality of control devices and an authentication apparatus, in particular an authentication control device. The authentication information of the plurality of control devices is supplied via the data bus to the authentication apparatus. The authentication cancels the immobilizer of the vehicle when the authentication information transmitted from the first and the second control device corresponds to the authentication information expected for the particular control devices.

Abstract: A system and method are provided for direct data exchange between two or more vehicles for transmission of data relating to events having a negative effect on driving safety, via wireless communication such as WLAN in particular. Unambiguous identification information is assigned to each vehicle. To increase acceptance of such a system, the identification information of the respective vehicle is temporary and is formed on the basis of the current status of the vehicle.

Abstract: A data-processing system having at least one operating memory holding operating data is provided with a protection unit having an execution environment protected from unauthorized access. At least one monitoring logic in the execution environment is connected to the operating memory for monitoring unauthorized modifications, access, or similar protection violations of the operating data stored in the operating memory and for generating an output on detection of such a protection violation. A protection logic in the execution environment holds replacement data capable of replacing the operating data and is connected to the monitoring logic for, on generation of the output, providing to the operating memory the replacement data for the operation or for a substitute operation of the data-processing system.

Abstract: A vehicle having electrical or electronic components connected to a communication network also has a security unit connected to the network. This security unit in turn has at least one cryptography module connected to the communication network and with which cryptographic codes are generated, stored, managed or processed and at least one coordination module for the coordination of individual modules within the security unit.

Abstract: A method, system, and computer program product for updating and/or expanding the functionality of the sequence control of at least one control unit of a motor vehicle are provided. In accordance with the method, a first data may be read from a first control unit and a second data may be read from a second control unit. A first check in the vehicle may be performed to ascertain whether the version of the sequence control currently running in the second control unit corresponds to a predetermined version of a sequence control or is even more current than the predetermined version. If the outcome of the first check is positive, a more current version in comparison with the version of the sequence control currently running in the first control unit may be saved and/or a version which expands the functionality may be saved in the first control unit.

Abstract: A method, device, and computer program product for documentation of service measures on a motor vehicle using an electronic memory are provided. The method for documentation of service measures on a motor vehicle using an electronic memory, includes generating a hash value of an input data specifying at least one concrete service measure, encrypting the hash value with a personal key as part of a public key method and entering into the electronic memory the input data, the encrypted hash value and a certificate containing in plain text at least the public key complementary to the personal key and data on the key holder.

Abstract: A method for authenticating a software package, which is provided by a software supplier and which contains a software component that can be loaded into a terminal. The software component is provided with a first authentication suffix, which is verified in order to carry out an authenticity test in the terminal. A higher-level authenticating site is provided, performing authenticating measures on the software package to increase security, wherein the measures performed by the higher-level authenticating site include providing the software package with at least one second authentication suffix instead of the first authentication suffix after successful checking of the software package provided by the software provider and including the first authentication suffix in addition to the software component of the software package.