Patents by Inventor Steven D. Ratts

Steven D. Ratts 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: 11831786
    Abstract: A system for establishing and maintaining a chain of trust can include a root of trust (RoT) executing a root trusted server that pushes authenticated code and data into memory of a given node in a plurality of nodes. The RoT can also record a memory address range of a static portion of the authenticated code and a corresponding static data in the given node and cause the given node to execute the authenticated code in response to the pushing to establish a trusted relationship between the trusted server of the RoT and the given node. The root trusted server also monitors the given node to ensure that the given node executes trusted operations. The authenticated code in the memory of the given node can include a trusted server that pushes authenticated code into memory of another node in the plurality of nodes.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: November 28, 2023
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Steven D. Ratts, Brian J. Noe, Francis B. Afinidad
  • Patent number: 11722903
    Abstract: A system for controlling access to data based on environmental verification can include a physical environment authenticator that receives data characterizing environmental parameters of a node in an environment from a set of environmental sensors. The physical environment authenticator can compare correlated environmental parameters with each other and/or a threshold value. At least a subset of the correlated environmental parameters are based on the data from the set of environmental sensors and grants access to a data if the correlated environmental parameters indicate that the node is operating in an authorized environment and prevents access to the data if the correlated environmental parameters indicates that the node is not operating in an authorized environment.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: August 8, 2023
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Steven D. Ratts, Brian J. Noe, Kathryn E. Schmidt, Alexander J. Voce, Albert C. Stevens, Michael Scholz
  • Publication number: 20220330031
    Abstract: A system for controlling access to data based on environmental verification can include a physical environment authenticator that receives data characterizing environmental parameters of a node in an environment from a set of environmental sensors. The physical environment authenticator can compare correlated environmental parameters with each other and/or a threshold value. At least a subset of the correlated environmental parameters are based on the data from the set of environmental sensors and grants access to a data if the correlated environmental parameters indicate that the node is operating in an authorized environment and prevents access to the data if the correlated environmental parameters indicates that the node is not operating in an authorized environment.
    Type: Application
    Filed: April 9, 2021
    Publication date: October 13, 2022
    Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: STEVEN D. RATTS, BRIAN J. NOE, KATHRYN E. SCHMIDT, ALEXANDER J. VOCE, ALBERT C. STEVENS, MICHAEL SCHOLZ
  • Patent number: 11157626
    Abstract: A system for establishing and maintaining a bi-directional chain of trust includes a root of trust (RoT) executing a root trusted server that can establish a trusted relationship between the RoT and a given node, and monitor the given node to ensure that the given node executes trusted operations and to ensure that authenticated code and static data for the given node are unchanged. The given node can include a trusted server that can monitor another node to ensure that the other node executes trusted operations and to ensure that authenticated code and static data for the other node are unchanged. The other node can include a trusted server that can monitor the given node to ensure that the given node executes trusted operations and to ensure that the authenticated code and static data for the given node are unchanged based on maintenance information received for the given node.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: October 26, 2021
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Steven D. Ratts, Brian J. Noe, Francis B. Afinidad