Patents by Inventor David Robert SUFFLING

David Robert SUFFLING 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).

  • Patent number: 9473474
    Abstract: An identity is communicated by a client device to a server without requiring the identity to be disclosed to eavesdroppers and without requiring the use of symmetric or asymmetric cryptography. In one example, the identity is an identity of the client device, where the identity has been assigned to the client device by the server through the provisioning of a unique subset of client-identifying keys. In another example, the identity is an identity of a group shared secret that has been provisioned by the server to the client device.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: October 18, 2016
    Assignee: BlackBerry Limited
    Inventor: David Robert Suffling
  • Patent number: 9232024
    Abstract: An identity is communicated by a client device to a server without requiring the identity to be disclosed to eavesdroppers and without requiring the use of symmetric or asymmetric cryptography. In one example, the identity is an identity of the client device, where the identity has been assigned to the client device by the server through the provisioning of a unique subset of client-identifying keys. In another example, the identity is an identity of a group shared secret that has been provisioned by the server to the client device.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: January 5, 2016
    Assignee: BLACKBERRY LIMITED
    Inventor: David Robert Suffling
  • Publication number: 20140331052
    Abstract: An identity is communicated by a client device to a server without requiring the identity to be disclosed to eavesdroppers and without requiring the use of symmetric or asymmetric cryptography. In one example, the identity is an identity of the client device, where the identity has been assigned to the client device by the server through the provisioning of a unique subset of client-identifying keys. In another example, the identity is an identity of a group shared secret that has been provisioned by the server to the client device.
    Type: Application
    Filed: July 16, 2014
    Publication date: November 6, 2014
    Inventor: David Robert SUFFLING
  • Patent number: 8832444
    Abstract: An identity is communicated by a client device to a server without requiring the identity to be disclosed to eavesdroppers and without requiring the use of symmetric or asymmetric cryptography. In one example, the identity is an identity of the client device, where the identity has been assigned to the client device by the server through the provisioning of a unique subset of client-identifying keys. In another example, the identity is an identity of a group shared secret that has been provisioned by the server to the client device.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: September 9, 2014
    Assignee: BlackBerry Limited
    Inventor: David Robert Suffling
  • Patent number: 8793780
    Abstract: A system and method, implementable using an authenticating device, are provided for authenticating requesting devices such as mobile devices and other communication devices over a network. At least one group shared secret is provisioned on a plurality of requesting devices, which are further provided with other authentication credentials such as a shared secret for full authentication by the authenticating device. When authentication is sought, the requesting device transmits a pre-authentication request comprising one of the group shared secrets to the authenticating device, which verifies that group shared secret. The group shared secrets may be stored in volatile memory at the authenticating device. If the group shared secret is verified, the authenticating device will authenticate that same device in response to a subsequent authentication request.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: July 29, 2014
    Assignee: BlackBerry Limited
    Inventor: David Robert Suffling
  • Publication number: 20120260329
    Abstract: A system and method, implementable using an authenticating device, are provided for authenticating requesting devices such as mobile devices and other communication devices over a network. At least one group shared secret is provisioned on a plurality of requesting devices, which are further provided with other authentication credentials such as a shared secret for full authentication by the authenticating device. When authentication is sought, the requesting device transmits a pre-authentication request comprising one of the group shared secrets to the authenticating device, which verifies that group shared secret. The group shared secrets may be stored in volatile memory at the authenticating device. If the group shared secret is verified, the authenticating device will authenticate that same device in response to a subsequent authentication request.
    Type: Application
    Filed: April 11, 2011
    Publication date: October 11, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventor: David Robert SUFFLING