Patents by Inventor Stephen H. Babbage

Stephen H. Babbage 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).

  • Mitigation of problems arising from SIM key leakage
    Patent number: 11228428
    Abstract: Method, system or Universal Integrated Circuit Card (UICC) for provisioning a UICC with a new key. The UICC contains an initial subscriber key shared between the UICC and an authentication center. A new key is exchanged between the UICC and the authentication center using a communication between the UICC and the authentication center authenticated using the initial subscriber key. The new key is used in place of the initial subscriber key for further communications with the UICC.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: January 18, 2022
    Assignee: VODAFONE IP LICENSING LIMITED
    Inventor: Stephen H. Babbage
  • MITIGATION OF PROBLEMS ARISING FROM SIM KEY LEAKAGE
    Publication number: 20200120495
    Abstract: Method, system or Universal Integrated Circuit Card (UICC) for provisioning a UICC with a new key. The UICC contains an initial subscriber key shared between the UICC and an authentication center. A new key is exchanged between the UICC and the authentication center using a communication between the UICC and the authentication center authenticated using the initial subscriber key. The new key is used in place of the initial subscriber key for further communications with the UICC.
    Type: Application
    Filed: December 11, 2019
    Publication date: April 16, 2020
    Inventor: Stephen H. BABBAGE
  • Mitigation of problems arising from SIM key leakage
    Patent number: 10542427
    Abstract: Method, system or Universal Integrated Circuit Card (UICC) for provisioning a UICC with a new key. The UICC contains an initial subscriber key shared between the UICC and an authentication center. A new key is exchanged between the UICC and the authentication center using a communication between the UICC and the authentication center authenticated using the initial subscriber key. The new key is used in place of the initial subscriber key for further communications with the UICC.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: January 21, 2020
    Assignee: VODAFONE IP LICENSING LIMITED
    Inventor: Stephen H. Babbage