Abstract: A method for authorizing a first participant in a communication network, via which a plurality of participants communicate. A respective identification information is associated with each of the participants, the method includes: transmitting the identification information of the first participant to a second participant in the communication network, which is a processing device; checking, by the processing device, whether authorization data associated with the identification information is present in a data structure; and enabling a function of the second participant exclusively upon fulfillment of an authorization condition evaluating the authorization data, which condition can only be fulfilled if authorization data associated with the identification information are present.

Abstract: A method for activating an electrical charging process between an electric vehicle and a charging station. The certificate data for activating the charging process are stored in a server device by an operating device of a user distinct from the motor vehicle, and the operating device transfers the certificate data to a data memory assigned to the motor vehicle in the server device, by a predetermined transfer command, and, before or while the motor vehicle is connected to the charging station for the charging process, a control unit of the motor vehicle sends out access data for accessing the data memory to an activation circuit of the charging station and the activation circuit requests the certificate data from the data memory of the motor vehicle at the server device based on the access data and, if the requested certificate data meet a predetermined permissibility criterion, carries out the charging process.

Abstract: A method for the verification of an electric charging process is provided, wherein electric energy is transferred by the charging process between an electrically operated motor vehicle and an electric charging station and station-side measurement data about the charging process are generated by a metering circuit of the charging station and the station-side measurement data are received by a server device from the charging station. Vehicle-side charging data about the same charging process are generated by a control circuit of the motor vehicle and the vehicle-side charging data are received by the server device from the motor vehicle and the server device operates a predetermined consensus algorithm in order to generate on the basis of the measurement data and the charging data a consensus value consistently describing the charging process for both the charging station and for the motor vehicle.

Abstract: A method for activating an electrical charging process between an electric vehicle and a charging station. The certificate data for activating the charging process are stored in a server device by an operating device of a user distinct from the motor vehicle, and the operating device transfers the certificate data to a data memory assigned to the motor vehicle in the server device, by a predetermined transfer command, and, before or while the motor vehicle is connected to the charging station for the charging process, a control unit of the motor vehicle sends out access data for accessing the data memory to an activation circuit of the charging station and the activation circuit requests the certificate data from the data memory of the motor vehicle at the server device based on the access data and, if the requested certificate data meet a predetermined permissibility criterion, carries out the charging process.