公开(公告)号：US10067770B2

公开(公告)日：2018-09-04

申请号：US14976863

申请日：2015-12-21

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

Inventor： Jeffrey K. Jeansonne ,  Lan Wang ,  Valiuddin Y. Ali

IPC: G06Q10/02 ,  G06Q20/32 ,  G06F9/4401

Abstract: In one example, a system for a platform key hierarchy includes an embedded controller to, store a first public platform key with a key bit list corresponding to a number of valid private platform keys, and verify a second public platform key by comparing a key number corresponding to a private platform key to the key bit list.

公开(公告)号：US20170180139A1

公开(公告)日：2017-06-22

申请号：US14976987

申请日：2015-12-21

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

Inventor： Jeffrey K. Jeansonne ,  Lan Wang ,  Dallas M. Barlow

IPC: H04L9/32

CPC classification number: H04L9/3247 ,  H04L9/0891 ,  H04L9/14

Abstract: Example implementations relate to key revocation. For example, a system for key revocation may comprise a processor, an embedded controller, a non-volatile memory storing a system instruction signing key authorization data element, wherein the data element includes a system instruction signing key, a signing key number and a signature. The embedded controller may include a plurality of keys to verify the data element, and a one-time programmable (OTP) memory and a key among the plurality of keys that is revocable using the OTP memory, wherein revocation of the key permanently prevents the embedded controller from utilizing the key.

公开(公告)号：US10747873B2

公开(公告)日：2020-08-18

申请号：US15747983

申请日：2016-01-26

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

Inventor： Richard A. Bramley, Jr. ,  David Plaquin ,  Maugan Villatel ,  Jeffrey K. Jeansonne

IPC: G06F21/53 ,  G06F21/55 ,  G06F21/57 ,  G06F21/62 ,  G06F21/74

Abstract: In one example, a system for a system management mode (SMM) privilege architecture includes a computing device comprising: a first portion of SMM instructions to set up a number of resources and implement a privilege architecture for the SMM of a computing device and a second portion of SMM instructions to execute a number of functions during the SMM of the computing device, wherein the privilege architecture assigns the first portion of SMM instructions to a first privilege level and assigns the second portion of SMM instructions to a second privilege level.

公开(公告)号：US20180322277A1

公开(公告)日：2018-11-08

申请号：US15747983

申请日：2016-01-26

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

Inventor： Richard A. Bramley Jr. ,  David Plaquin ,  Maugan Villatel ,  Jeffrey K. Jeansonne

IPC: G06F21/53 ,  G06F21/57 ,  G06F21/62

CPC classification number: G06F21/53 ,  G06F21/57 ,  G06F21/577 ,  G06F21/6218 ,  G06F21/629 ,  G06F21/74 ,  G06F2221/2141 ,  G06F2221/2149

Abstract: In one example, a system for a system management mode (SMM) privilege architecture includes a computing device comprising: a first portion of SMM instructions to set up a number of resources and implement a privilege architecture for the SMM of a computing device and a second portion of SMM instructions to execute a number of functions during the SMM of the computing device, wherein the privilege architecture assigns the first portion of SMM instructions to a first privilege level and assigns the second portion of SMM instructions to a second privilege level.

公开(公告)号：US11316827B2

公开(公告)日：2022-04-26

申请号：US16076230

申请日：2017-04-24

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

Inventor： Jeffrey K. Jeansonne ,  Isaac Lagnado ,  Roger D. Benson

IPC: G06F1/16 ,  H04L101/622 ,  G06F1/26 ,  H04L61/5038

Abstract: Examples relate to operating mode configuration. An apparatus may include a memory resource storing executable instructions. Instructions may include instructions to receive a message from a host computing device coupled to the apparatus. The message may include a Host Based Media Access Control Address (HBMA). Instructions may further include instructions to configure the apparatus using the HBMA in response to a determination that the apparatus is in a particular operating mode. The apparatus may further include a processing resource to execute the instructions stored on the memory resource.

公开(公告)号：US09928367B2

公开(公告)日：2018-03-27

申请号：US14957898

申请日：2015-12-03

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

Inventor： Jeffrey K. Jeansonne ,  Valiuddin Y. Ali ,  Stanley Hyojun Park

IPC: G06F21/00 ,  G06F21/56 ,  G06F12/14 ,  G06F13/42 ,  G06F21/57

CPC classification number: G06F21/566 ,  G06F12/1458 ,  G06F13/4282 ,  G06F21/57 ,  G06F2212/1052

Abstract: Example implementations relate to runtime verification. In one example, runtime verification includes a processor, a shared memory storing embedded controller instructions, and an embedded controller to verify the embedded controller instructions stored in the shared memory during runtime of the processor.

公开(公告)号：US10181956B2

公开(公告)日：2019-01-15

申请号：US14976987

申请日：2015-12-21

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

Inventor： Jeffrey K. Jeansonne ,  Lan Wang ,  Dallas M. Barlow

IPC: H04L9/32

Abstract: Example implementations relate to key revocation. For example, a system for key revocation may comprise a processor, an embedded controller, a non-volatile memory storing a system instruction signing key authorization data element, wherein the data element includes a system instruction signing key, a signing key number and a signature. The embedded controller may include a plurality of keys to verify the data element, and a one-time programmable (OTP) memory and a key among the plurality of keys that is revocable using the OTP memory, wherein revocation of the key permanently prevents the embedded controller from utilizing the key.

公开(公告)号：US20170177373A1

公开(公告)日：2017-06-22

申请号：US14976863

申请日：2015-12-21

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

Inventor： Jeffrey K. Jeansonne ,  Lan Wang ,  Valiuddin Y. Ali

IPC: G06F9/44

CPC classification number: G06F9/4403 ,  G06F21/57 ,  H04L9/0836 ,  H04L9/0891 ,  H04L9/3247 ,  H04L9/3263 ,  H04W12/04

Abstract: In one example, a system for a platform key hierarchy includes an embedded controller to, store a first public platform key with a key bit list corresponding to a number of valid private platform keys, and verify a second public platform key by comparing a key number corresponding to a private platform key to the key bit list.

公开(公告)号：US11321267B2

公开(公告)日：2022-05-03

申请号：US16074180

申请日：2016-09-30

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

Inventor： Jeffrey K. Jeansonne ,  Justin C. Prindle

IPC: G06F13/20 ,  G06F13/42

Abstract: Example implementations relate to safe peripheral device communications. In one example, a host computing device can include a serializer/deserializer (SERDES), a PCIe bus, a video source, a connector coupled, via the SERDES, to the PCIe bus and the video source; and a host controller to operate in a safe mode and cause PCIe data from PCIe bus to be provided, via the SERDES and the connector, solely to a peripheral controller of a peripheral device.

公开(公告)号：US20170161497A1

公开(公告)日：2017-06-08

申请号：US14957898

申请日：2015-12-03

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

Inventor： Jeffrey K. Jeansonne ,  Valiuddin Y. Ali ,  Stanley Hyojun Park

IPC: G06F21/56 ,  G06F13/42 ,  G06F12/14

CPC classification number: G06F21/566 ,  G06F12/1458 ,  G06F13/4282 ,  G06F21/57 ,  G06F2212/1052

Abstract: Example implementations relate to runtime verification. In one example, runtime verification includes a processor, a shared memory storing embedded controller instructions, and an embedded controller to verify the embedded controller instructions stored in the shared memory during runtime of the processor.