Mercedes-benz Group Ag

Valeo Schalter Und Sensoren Gmbh

Viktor Friesen

Hubert Rehborn

Micha Koller

Viktor Pavlovic

Andreas Hiller

Benjamin Nepp

Marc Scheerle

Manuel Beck

Frederic Gehin

Ullrich Pressel

Martin Anderschitz

Albert Held

Matthias Dettling

Daniel Meidlinger

Philipp Weber

A method for generating secrets using a vehicle involves a computing unit reading input data and processing the input data to generate at least one secret using rules. At least action data is used as the input data, the action data being generated by the vehicle after carrying out at least one action. The computing unit calculates a unique pseudo-random byte sequence from the action data using the rules. The pseudo-random byte sequence is used as the secret or pseudo-random byte sequence is further processed by a function in order to derive the secret.

Method for generating secrets with a vehicle, and vehicle

A method involves a vehicle certification authority and a control device certification authority having a respective infrastructure for public keys based on an asymmetric pain of is established. The respective private key remains in the certification authority and the public key is distributed to the participants. The control device has initial cryptographic material by a control device-individual pair of keys being generated for the control device and the identity of the control device and its public key are transmitted to the control device certification authority, after which a control device-individual certificate is generated there for the transmitted data using the private key of the control device certification authority and transmitted back to the control device. The public key of the vehicle certification authority is stored in a tamper-proof manner in the control device. The vehicle identity belonging to the identity of the control device is determined and stored in a tamper-proof manner.

Method for securely equipping a vehicle with an individual certificate

A method for checking cryptographic secrets for equality involves at least one of the secrets being stored in a read-protected manner in a secure system. The at least one secure system has a cryptographic hash value interface. For checking purposes, a hash value of the secret provided with a salt or with the hash value of a salt is output via the interface for comparison with a corresponding hash value of another secret provided with the salt or with the hash value of the salt.

Method for checking cryptographic secrets for equality

A method for implementing and using cryptographic material in at least one system component of an information technology system for performing at least one operation involves describing a state of the system component by at least one variable is checked at least at a first time. The cryptographic material is supplemented with additional data describing possible states of system components. The cryptographic material is used by the system component when the additional data of the cryptographic material include comprise at least the state that the system component has at the first time. The additional data are formed by at least one condition, at least one role, and/or at least one target component identity.

Method for implementing and using cryptographic material in at least one system component of an information technology system

Communications between a communication system of a vehicle and an external server external via a communication interface are secured such that data is transmitted to the communication system with integrity and authenticity protection, and also confidentially where necessary. A first securing method for the non-post-quantum-resistant securing of exchanged data is implemented, a second securing method for the post-quantum-resistant securing of exchanged data is implemented or is able to be implemented. Key material for the second securing method is initially introduced in the communication system and is stored securely or is able to be introduced via a further interface with cryptographic encryption and is securely stored for exclusive use in the second securing method.

Method for securing communication between a communication system of a vehicle and a vehicle-external server

A system for generating cryptographic material includes a cryptomaterial server and developer module. The cryptomaterial server has at least one cryptomaterial generator and a cryptomaterial distributor. The cryptomaterial generator is set up to generate cryptographic material by using specifications that can be predetermined via the developer module. The cryptomaterial server has a receiving part of a specification interface and the developer module has a corresponding sending part of the specification interface, which can be coupled directly or indirectly for the secure transmission of data. The developer module has a user interface or can be coupled directly or indirectly to one that is set up for an input of the specifications in abstract form. A transformation module automatically transforms the input specifications into a syntax of the cryptomaterial generator.

System for generating cryptographic material

A method for anonymizing movement data of road users equipped with a position detection device involves collecting movement data in the form of individual time- and position-related data records and transmitting the collected movement data to a backend server. At least some data records are transmitted indirectly via at least one other vehicle, or the position or time reference in at least some data records is made noisy prior to the transmission.

Method for anonymizing movement data

A method for transmitting information between a data processing system external to the vehicle and systems using the information in a vehicle employs integrity protection and/or encryption mechanisms. The integrity and/or encryption mechanisms are used with different levels of protection, wherein the level of protection is selected and/or adjusted based on the information or a classification of the information, the provided use of the information, the state of the vehicle, the surroundings of the vehicle, the origin of the information, the protection goal, and/or the resource consumption.

Method for transmitting information

A method for secure usage of cryptographic material in networked system components provided with the cryptographic material in which a lifecycle of every system component includes at least one development phase and one production phase. The entire cryptographic material is at least directly securely marked as development or production material. Each system component has a binary state flag showing which phase the system component is in and which is secured against unauthorized manipulation. Each system component determines via an assessment function which phase it is in, according to which each system component carries out a check, during which the current phase and the marker of the cryptographic material are compared. Security measures are introduced if there is no agreement between the phase and the marker.

Method for secure usage of cryptographic material

The invention relates to a method for the remote control of a function of a motor vehicle by means of a vehicle-external electronic unit, in which the vehicle-external electronic unit () is checked during the driving event of the motor vehicle () in that the vehicle-external electronic unit () triggers an operation, the result of which is checked for correctness by a control device () of the motor vehicle (). In the method, in which the computing power of the control device as well as the bandwidth of the communication between the vehicle-external electronic unit and the control device are reduced, an index list is stored in the control device (), wherein, for triggering an operation, an index is transmitted from the control device () to the vehicle-external electronic unit () and the vehicle-external electronic unit () determines by means of the index input variables which are stored in dependence on the index in the vehicle-external electronic unit (), by means of which the operation is carried out.

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Karlsruhe, Germany

Viktor Friesen