Patents by Inventor Andreas Graubner

Andreas Graubner 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).

  • Communication device and method for performing encrypted communication in multipoint networks
    Patent number: 9930015
    Abstract: A communication device for performing encrypted communication with at least one further communication device in a communication network is provided. Advantageously, the device is adapted to communicate with a plurality of further communication devices. The communication device comprises a communication unit and a cryptographic unit. Moreover it comprises a key encryption key generator configured to generate at least one key encryption key jointly with the at least further communication device, using the communication unit. Also, it comprises a traffic encryption key generator configured to generate a traffic encryption key, specific to the communication device, for encrypting traffic data by the communication device. The cryptographic unit is preferably configured to encrypt the traffic encryption key using the at least one key encryption key. Moreover, the communication unit is preferably configured to transmit the encrypted traffic encryption key to the at least one further communication device.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: March 27, 2018
    Assignee: Rohde & Schwarz SIT GmbH
    Inventors: Andreas Graubner, Stefan Roehrich, Bernhard Heep
  • Communication device and method for performing encrypted communication in multipoint networks
    Publication number: 20170054691
    Abstract: A communication device for performing encrypted communication with at least one further communication device in a communication network is provided. Advantageously, the device is adapted to communicate with a plurality of further communication devices. The communication device comprises a communication unit and a cryptographic unit. Moreover it comprises a key encryption key generator configured to generate at least one key encryption key jointly with the at least further communication device, using the communication unit. Also, it comprises a traffic encryption key generator configured to generate a traffic encryption key, specific to the communication device, for encrypting traffic data by the communication device. The cryptographic unit is preferably configured to encrypt the traffic encryption key using the at least one key encryption key. Moreover, the communication unit is preferably configured to transmit the encrypted traffic encryption key to the at least one further communication device.
    Type: Application
    Filed: October 19, 2015
    Publication date: February 23, 2017
    Inventors: Andreas Graubner, Stefan Roehrich, Bernhard Heep