Patents by Inventor Rodrigo Portella do Canto

Rodrigo Portella do Canto 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: 11463236
    Abstract: An indication of a mode of operation to be performed with a block cipher may be received. Logic associated with the block cipher may be configured based on the indicated mode of operation to be performed with the block cipher. Furthermore, an input data and a mask data may be received. The input data may be combined with the mask data to generate a masked input data based on the configured logic. The masked input data may be provided to the block cipher based on the configured logic and an output data may be generated with the block cipher based on the provided masked input data.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: October 4, 2022
    Assignee: CRYPTOGRAPHY RESEARCH, INC.
    Inventors: Rodrigo Portella do Canto, Elke De Mulder, Pankaj Rohatgi, Matthew Pond Baker
  • Publication number: 20200125756
    Abstract: Systems and methods for implementing access control by systems-on-chip (SoCs). An example SoC may comprise: an access control unit comprising a secure memory for storing access control data, the access control unit to: receive a message comprising an access control data item; store the access control data item in the secure memory; perform at least one of: authenticating the message using a message digest function, or validating contents of the secure memory by comparing a stored reference value with a calculated value of a message digest function of the contents of the secure memory; and control, in view of the access control data item, access by an initiator device to a target device.
    Type: Application
    Filed: October 11, 2019
    Publication date: April 23, 2020
    Inventors: Craig E. Hampel, Jean-Michel Cioranesco, Rodrigo Portella do Canto, Guilherme Ozari de Almeida
  • Patent number: 10482275
    Abstract: Systems and methods for implementing access control by systems-on-chip (SoCs). An example SoC may comprise: an access control unit comprising a secure memory for storing access control data, the access control unit to: receive a message comprising an access control data item; store the access control data item in the secure memory; perform at least one of: authenticating the message using a message digest function, or validating contents of the secure memory by comparing a stored reference value with a calculated value of a message digest function of the contents of the secure memory; and control, in view of the access control data item, access by an initiator device to a target device.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: November 19, 2019
    Assignee: Cryptography Research, Inc.
    Inventors: Craig E. Hampel, Jean-Michel Cioranesco, Rodrigo Portella do Canto, Guilherme Ozari de Almeida
  • Publication number: 20190349187
    Abstract: An indication of a mode of operation to be performed with a block cipher may be received. Logic associated with the block cipher may be configured based on the indicated mode of operation to be performed with the block cipher. Furthermore, an input data and a mask data may be received. The input data may be combined with the mask data to generate a masked input data based on the configured logic. The masked input data may be provided to the block cipher based on the configured logic and an output data may be generated with the block cipher based on the provided masked input data.
    Type: Application
    Filed: December 4, 2017
    Publication date: November 14, 2019
    Inventors: Rodrigo Portella do Canto, Elke De Mulder, Pankaj Rohatgi, Matthew Pond Baker
  • Patent number: 9853974
    Abstract: Systems and methods for implementing access control by systems-on-chip (SoCs). An example SoC may comprise an access control unit employed to: receive a message comprising an access control data item; validate the message using a value of a message digest function of contents of the message and a value of a state variable reflecting a state of communications between the access control unit and a programming agent that has initiated the message, wherein the value of the state variable is derived from a previous value of the message digest function calculated within a current communication session between the access control unit and the programming agent; update the state variable using the value of the message digest function of the contents of the message; and control, using the access control data item, access by an initiator device to a target device.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: December 26, 2017
    Assignee: Cryptography Research, Inc.
    Inventors: Craig E. Hampel, Jean-Michel Cioranesco, Rodrigo Portella do Canto, Guilherme Ozari de Almeida, Christopher Gori
  • Publication number: 20160350549
    Abstract: Systems and methods for implementing access control by systems-on-chip (SoCs). An example SoC may comprise: an access control unit comprising a secure memory for storing access control data, the access control unit to: receive a message comprising an access control data item; store the access control data item in the secure memory; perform at least one of: authenticating the message using a message digest function, or validating contents of the secure memory by comparing a stored reference value with a calculated value of a message digest function of the contents of the secure memory; and control, in view of the access control data item, access by an initiator device to a target device.
    Type: Application
    Filed: January 27, 2015
    Publication date: December 1, 2016
    Inventors: Craig E. Hampel, Jean-Michel Cioranesco, Rodrigo Portella do Canto, Guilherme Ozari de Almeida
  • Publication number: 20160028728
    Abstract: Systems and methods for implementing access control by systems-on-chip (SoCs). An example SoC may comprise an access control unit employed to: receive a message comprising an access control data item; validate the message using a value of a message digest function of contents of the message and a value of a state variable reflecting a state of communications between the access control unit and a programming agent that has initiated the message, wherein the value of the state variable is derived from a previous value of the message digest function calculated within a current communication session between the access control unit and the programming agent; update the state variable using the value of the message digest function of the contents of the message; and control, using the access control data item, access by an initiator device to a target device.
    Type: Application
    Filed: July 28, 2015
    Publication date: January 28, 2016
    Inventors: Craig E. Hampel, Jean-Michel Cioranesco, Rodrigo Portella do Canto, Guilherme Ozari de Almeida, Christopher Gori