Patents by Inventor HELEN Y. HOSELTON

HELEN Y. HOSELTON 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 protocol for secure communications systems
    Patent number: 9143321
    Abstract: A method and apparatus for transmitting encryption keys in a secure communication system is provided herein. During rekeying of a device, a key encryption key (KEK) is utilized to wrap (encrypt) the traffic encryption key (TEK) when the KEK is available to the device. If unavailable, the TEK will be wrapped using public key encryption with the recipient device's public key. The receiving device will then be able to unwrap the TEK using public key decryption with its own private key. Because TEKs are always transmitted in a secure manner, secure and efficient rekeying of devices on foreign networks can occur.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: September 22, 2015
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Thomas J. Senese, Helen Y. Hoselton, Obaid Shahab
  • Communication protocol for secure communications systems
    Patent number: 8650404
    Abstract: A method and apparatus for authenticating a key management message within a secure communication system is provided herein. During operation, a digital signature for message authentication of a Project 25 Key Management Message (KMM) is utilized. In particular, the digital signature will be used to authenticate the KMM in scenarios where there is no Message Authentication Code (MAC). The MAC will be utilized to authenticate the KMM when available. Because authentication of KMMs take place, even when no MAC is available, it becomes increasingly more difficult to tamper or spoof the delivery of encryption keys.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: February 11, 2014
    Assignee: Motorola Solutions, Inc.
    Inventors: Thomas J. Senese, Helen Y. Hoselton, Obaid Shahab
  • COMMUNICATION PROTOCOL FOR SECURE COMMUNICATIONS SYSTEMS
    Publication number: 20130236014
    Abstract: A method and apparatus for transmitting encryption keys in a secure communication system is provided herein. During rekeying of a device, a key encryption key (KEK) is utilized to wrap (encrypt) the traffic encryption key (TEK) when the KEK is available to the device. If unavailable, the TEK will be wrapped using public key encryption with the recipient device's public key. The receiving device will then be able to unwrap the TEK using public key decryption with its own private key. Because TEKs are always transmitted in a secure manner, secure and efficient rekeying of devices on foreign networks can occur.
    Type: Application
    Filed: March 9, 2012
    Publication date: September 12, 2013
    Applicant: MOTOROLA SOLUTIONS, INC.
    Inventors: THOMAS J. SENESE, HELEN Y. HOSELTON, OBAID SHAHAB
  • COMMUNICATION PROTOCOL FOR SECURE COMMUNICATIONS SYSTEMS
    Publication number: 20130227294
    Abstract: A method and apparatus for authenticating a key management message within a secure communication system is provided herein. During operation, a digital signature for message authentication of a Project 25 Key Management Message (KMM) is utilized. In particular, the digital signature will be used to authenticate the KMM in scenarios where there is no Message Authentication Code (MAC). The MAC will be utilized to authenticate the KMM when available. Because authentication of KMMs take place, even when no MAC is available, it becomes increasingly more difficult to tamper or spoof the delivery of encryption keys.
    Type: Application
    Filed: February 28, 2012
    Publication date: August 29, 2013
    Applicant: MOTOROLA SOLUTIONS, INC.
    Inventors: THOMAS J. SENESE, HELEN Y. HOSELTON, OBAID SHAHAB