Patents by Inventor Mario Alberto Sanchez

Mario Alberto Sanchez 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).

  • Trust verification system and method for a baseboard management controller (BMC)
    Patent number: 11797679
    Abstract: An Information Handling System (IHS) includes multiple hardware devices, and a baseboard Management Controller (BMC) in communication with the plurality of hardware devices. The BMC includes instructions for executing a bootloader to verify an integrity of a first firmware stack, and boot the first firmware stack on a first processor. Once booted, the first firmware stack verifies the integrity of a first code segment on a second processor that is also used to execute a custom BMC firmware stack. The first code segment is executed to verify the integrity of one or more vendor supplied code segments executed on the second processor.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: October 24, 2023
    Assignee: Dell Products, L.P.
    Inventors: Eugene David Cho, Mario Alberto Sanchez, Akkiah Choudary Maddukuri, Marshal F. Savage, Paul W. Vancil
  • System and method for maintaining trusted execution in an untrusted computing environment using a secure communication channel
    Patent number: 11593490
    Abstract: An Information Handling System (IHS) includes multiple hardware devices, and a baseboard Management Controller (BMC) in communication with the plurality of hardware devices. The BMC includes instructions for executing an assistance application (APP) in an untrusted domain of the BMC. The assistance APP configured to monitor a custom BMC firmware stack executed in the untrusted domain. The instructions are further executed to verify an integrity of the assistance APP from a trusted domain of the BMC by encrypting communications between the trusted and untrusted domains using an encryption key that comprises a function of a time counter value.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: February 28, 2023
    Assignee: Dell Products, L.P.
    Inventors: Eugene David Cho, Mario Alberto Sanchez, Akkiah Choudary Maddukuri, Marshal F. Savage, Paul W. Vancil
  • SYSTEM AND METHOD FOR MAINTAINING TRUSTED EXECUTION IN AN UNTRUSTED COMPUTING ENVIRONMENT USING A SECURE COMMUNICATION CHANNEL
    Publication number: 20230030501
    Abstract: An Information Handling System (IHS) includes multiple hardware devices, and a baseboard Management Controller (BMC) in communication with the plurality of hardware devices. The BMC includes instructions for executing an assistance application (APP) in an untrusted domain of the BMC. The assistance APP configured to monitor a custom BMC firmware stack executed in the untrusted domain. The instructions are further executed to verify an integrity of the assistance APP from a trusted domain of the BMC by encrypting communications between the trusted and untrusted domains using an encryption key that comprises a function of a time counter value.
    Type: Application
    Filed: July 28, 2021
    Publication date: February 2, 2023
    Applicant: Dell Products, L.P.
    Inventors: Eugene David Cho, Mario Alberto Sanchez, Akkiah Choudary Maddukuri, Marshal F. Savage, Paul W. Vancil
  • TRUST VERIFICATION SYSTEM AND METHOD FOR A BASEBOARD MANAGEMENT CONTROLLER (BMC)
    Publication number: 20230034526
    Abstract: An Information Handling System (IHS) includes multiple hardware devices, and a baseboard Management Controller (BMC) in communication with the plurality of hardware devices. The BMC includes instructions for executing a bootloader to verify an integrity of a first firmware stack, and boot the first firmware stack on a first processor. Once booted, the first firmware stack verifies the integrity of a first code segment on a second processor that is also used to execute a custom BMC firmware stack. The first code segment is executed to verify the integrity of one or more vendor supplied code segments executed on the second processor.
    Type: Application
    Filed: July 28, 2021
    Publication date: February 2, 2023
    Applicant: Dell Products, L.P.
    Inventors: Eugene David Cho, Mario Alberto Sanchez, Akkiah Choudary Maddukuri, Marshal F. Savage, Paul W. Vancil