Patents by Inventor Vasileios Tenentes

Vasileios Tenentes 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: 11693992
    Abstract: An apparatus and system for remote attestation of a power delivery network is disclosed. Embodiments of the disclosure enable remote attestation of the power delivery network by storing a trusted golden reference waveform in secure memory. The trusted golden reference waveform characterizes a power delivery network in response to a load generated on the power delivery network. A remote cloud server generates a server-generated remote attestation of the power delivery network by receiving an attestation packet from the power delivery network and verifying whether the attestation packet is consistent with an expected power delivery network identity.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: July 4, 2023
    Assignee: Arm Limited
    Inventors: Milosch Meriac, Hugo John Martin Vincent, Shidhartha Das, Vasileios Tenentes
  • Patent number: 11620413
    Abstract: An apparatus and method for detecting a change in electrical properties in a system is disclosed. Embodiments of the disclosure enable the detection of a change in electrical properties in a system by, in response to a load generated on a power delivery network power in at least part of the system, measuring noise induced in the power delivery network in response to the load. Based on the measured noise, a dynamic-response property of the power delivery network is determined and the dynamic-response property is compared to a stored reference dynamic-response property of the power delivery network based on a predetermined load. In the event of a difference between the dynamic-response property and the reference dynamic-response property, a response to the event is triggered to indicate tampering with the power delivery network.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: April 4, 2023
    Assignee: Arm Limited
    Inventors: Hugo John Martin Vincent, Shidhartha Das, Milosch Meriac, Vasileios Tenentes
  • Patent number: 11232236
    Abstract: A method and authenticator for authenticating a device in a system using the electrical properties of the device is disclosed. Embodiments of the disclosure enable authentication by receiving a plurality of input seed values from a requestor. For each input seed value, load stimuli are generated to produce an electrical load sequence on a power delivery network powering at least part of the system. Noise induced in the power delivery network is measured in response to the electrical load sequence using one or more sensors located on the power delivery network. Based on the measured noise, a dynamic response property (magnitude and phase response as a function of frequency) of the power delivery network corresponding to a respective input seed value can be determined and returned to the requestor.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: January 25, 2022
    Assignee: Arm Limited
    Inventors: Hugo John Martin Vincent, Shidhartha Das, Milosch Meriac, Vasileios Tenentes
  • Publication number: 20210150071
    Abstract: An apparatus and method for detecting a change in electrical properties in a system is disclosed. Embodiments of the disclosure enable the detection of a change in electrical properties in a system by, in response to a load generated on a power delivery network power in at least part of the system, measuring noise induced in the power delivery network in response to the load. Based on the measured noise, a dynamic-response property of the power delivery network is determined and the dynamic-response property is compared to a stored reference dynamic-response property of the power delivery network based on a predetermined load. In the event of a difference between the dynamic-response property and the reference dynamic-response property, a response to the event is triggered to indicate tampering with the power delivery network.
    Type: Application
    Filed: April 18, 2019
    Publication date: May 20, 2021
    Applicant: Arm Limited
    Inventors: Hugo John Martin Vincent, Shidhartha Das, Milosch Meriac, Vasileios Tenentes
  • Publication number: 20210097207
    Abstract: An apparatus and system for remote attestation of a power delivery network is disclosed. Embodiments of the disclosure enable remote attestation of the power delivery network by storing a trusted golden reference waveform in secure memory. The trusted golden reference waveform characterizes a power delivery network in response to a load generated on the power delivery network. A remote cloud server generates a server-generated remote attestation of the power delivery network by receiving an attestation packet from the power delivery network and verifying whether the attestation packet is consistent with an expected power delivery network identity.
    Type: Application
    Filed: April 18, 2019
    Publication date: April 1, 2021
    Applicant: Arm Limited
    Inventors: Milosch Meriac, Hugo John Martin Vincent, Shidhartha Das, Vasileios Tenentes
  • Publication number: 20210064789
    Abstract: A method and authenticator for authenticating a device in a system using the electrical properties of the device is disclosed. Embodiments of the disclosure enable authentication by receiving a plurality of input seed values from a requestor. For each input seed value, load stimuli are generated to produce an electrical load sequence on a power delivery network powering at least part of the system. Noise induced in the power delivery network is measured in response to the electrical load sequence using one or more sensors located on the power delivery network. Based on the measured noise, a dynamic response property (magnitude and phase response as a function of frequency) of the power delivery network corresponding to a respective input seed value can be determined and returned to the requestor.
    Type: Application
    Filed: April 18, 2019
    Publication date: March 4, 2021
    Applicant: Arm Limited
    Inventors: Hugo John Martin Vincent, Shidhartha Das, Milosch Meriac, Vasileios Tenentes