Patents by Inventor Carsten Schmal

Carsten Schmal has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Motor vehicle control unit having a cryptographic device
    Patent number: 9479329
    Abstract: It should not be possible for control units for motor vehicles to be exchanged between individual motor vehicles by unauthorized persons. For a motor vehicle it should, therefore, be rendered possible for individual functionalities of a control unit to be unblocked only for a specific motor vehicle. For this purpose, a first cryptographic key and a second cryptographic key are stored in a control unit. A cryptographic device is designed to encrypt a first message initially by one of the cryptographic keys, subsequently to encrypt a result of the encryption by the other cryptographic key and, finally, to provide a result of the second encryption as third cryptographic key for an encryption and/or decryption of a further message. A method configures a control unit in a motor vehicle.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: October 25, 2016
    Assignee: AUDI AG
    Inventors: Stefan Geiger, Ingo Ledendecker, Carsten Schmal
  • MOTOR VEHICLE CONTROL UNIT HAVING A CRYPTOGRAPHIC DEVICE
    Publication number: 20140016781
    Abstract: It should not be possible for control units for motor vehicles to be exchanged between individual motor vehicles by unauthorized persons. For a motor vehicle it should, therefore, be rendered possible for individual functionalities of a control unit to be unblocked only for a specific motor vehicle. For this purpose, a first cryptographic key and a second cryptographic key are stored in a control unit. A cryptographic device is designed to encrypt a first message initially by one of the cryptographic keys, subsequently to encrypt a result of the encryption by the other cryptographic key and, finally, to provide a result of the second encryption as third cryptographic key for an encryption and/or decryption of a further message. A method configures a control unit in a motor vehicle.
    Type: Application
    Filed: January 27, 2012
    Publication date: January 16, 2014
    Inventors: Stefan Geiger, Ingo Ledendecker, Carsten Schmal