公开(公告)号：US20210382979A1

公开(公告)日：2021-12-09

申请号：US17054197

申请日：2019-02-28

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Richard Alden Bramley, Jr. ,  Dallas M. Barlow ,  Patrick Lee Gibbons ,  Adrian John Baldwin ,  Tevin Jaupaul Richards ,  Robert Stephen Craig ,  Valiuddin Ali ,  Jeffrey Kevin Jeansonne

IPC: G06F21/44 ,  H04L9/14 ,  G06F9/445

Abstract: An example computing device includes a memory accessible at startup of the computing device, a buffer, and a set of instructions. The memory stores a configuration setting that is configurable by the application of a change request. The memory also stores a first public key and a second public key. The buffer stores change requests submitted by a remote entity, including a first change request to make a first setting change and a second change request to make a second setting change. The first change request is signed by a first private key corresponding to the first public key, and the second change request is signed by a second private key corresponding to the second public key. The set of instructions retrieves a change request from the buffer, determines whether the change request is authenticated by a public key, and if authenticated, applies the change request.

公开(公告)号：US20200320198A1

公开(公告)日：2020-10-08

申请号：US16481087

申请日：2017-12-19

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Christopher H Stewart ,  Jeffrey P Kenline ,  Brandon Huber ,  Robert Stephen Craig ,  Virupakshi Channagiri ,  Jon G Lloyd ,  Rosilet Braduke ,  Lan Wang ,  Hsin-Ming Yang

IPC: G06F21/57 ,  G06F13/20

Abstract: An example device comprises a plurality of components and a BIOS includes a non-volatile memory having instructions stored thereon that are executable by a processor of the device to cause the BIOS to determine a component identification (ID) of a component of the plurality of components, and fetch a plurality of recall component IDs. The instructions also are to cause the BIOS to compare the determined component ID with the plurality of recall component IDs. In response to a correspondence between the determined component ID and one recall component ID of the plurality of component IDs, the BIOS is to transmit signals representing a prompt to place the component of the plurality of components in a safety mode. The instructions also cause the BIOS to receive signals in response to the prompt and, responsive to the received signals, disable the component of the plurality of components.

公开(公告)号：US11907411B2

公开(公告)日：2024-02-20

申请号：US17777843

申请日：2019-12-09

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Mason Andrew Gunyuzlu ,  Robert Stephen Craig ,  Tevin Richards

IPC: G06F21/83 ,  G06F21/31 ,  G06F21/74

CPC classification number: G06F21/83 ,  G06F21/31 ,  G06F21/74

Abstract: Example computing devices that are enabled to enter secure operating modes are provided. An example computing device includes a main processor to run an operating system enabled to establish communication from an external device to the main processor via a hardware interrupt handler when the external device is connected to the computing device. The computing device further includes a keyboard controller to detect a lock keystroke sequence at a keyboard, and, in response to detecting the lock keystroke sequence, cause the main processor to halt the operating system and to enter a secure operating mode in which communication from the external device to the main processor via the hardware interrupt handler is blocked.

公开(公告)号：US11657138B2

公开(公告)日：2023-05-23

申请号：US17054197

申请日：2019-02-28

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Richard Alden Bramley, Jr. ,  Dallas M. Barlow ,  Patrick Lee Gibbons ,  Adrian John Baldwin ,  Tevin Jaupaul Richards ,  Robert Stephen Craig ,  Valiuddin Ali ,  Jeffrey Kevin Jeansonne

IPC: G06F21/00 ,  H04L29/06 ,  G06F21/44 ,  G06F9/445 ,  H04L9/14

CPC classification number: G06F21/44 ,  G06F9/44505 ,  H04L9/14

Abstract: An example computing device includes a memory accessible at startup of the computing device, a buffer, and a set of instructions. The memory stores a configuration setting that is configurable by the application of a change request. The memory also stores a first public key and a second public key. The buffer stores change requests submitted by a remote entity, including a first change request to make a first setting change and a second change request to make a second setting change. The first change request is signed by a first private key corresponding to the first public key, and the second change request is signed by a second private key corresponding to the second public key. The set of instructions retrieves a change request from the buffer, determines whether the change request is authenticated by a public key, and if authenticated, applies the change request.