公开(公告)号：US10534739B2

公开(公告)日：2020-01-14

申请号：US15515743

申请日：2014-10-31

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Maugan Villatel ,  David Plaquin ,  Chris I. Dalton

IPC: G06F13/40 ,  G06F12/14 ,  G06F13/36 ,  G06F21/62 ,  G06F21/78

Abstract: A bus between a requester and a target component includes a portion dedicated to carry information indicating a privilege level, from among a plurality of privilege levels, of machine-readable instructions executed on the requester.

公开(公告)号：US11086797B2

公开(公告)日：2021-08-10

申请号：US15518218

申请日：2014-10-31

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Gregg B. Lesartre ,  Joseph E. Foster ,  David Plaquin ,  James M. Mann

IPC: G06F12/14 ,  G06F12/02 ,  G06F12/1081

Abstract: A method for restricting write access to a non-volatile memory. The method includes receiving a request to write to a protected location in the non-volatile memory and determining whether the protected location is in a write-protected state. If the protected location is not in a write-protected state, the method includes writing data indicated by the request to the protected location. If the protected location is in a write-protected state, the method includes rejecting the request. The protected location stores a validation key to validate the contents of another portion of the non-volatile memory.

公开(公告)号：US20180183609A1

公开(公告)日：2018-06-28

申请号：US15579904

申请日：2015-06-05

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Adrian Shaw ,  Ludovic Emmanuel Paul N. Jacquin ,  David Plaquin

IPC: H04L9/32 ,  G06F21/62 ,  H04L29/06 ,  G06F21/60 ,  H04L9/14 ,  H04L9/08

CPC classification number: H04L9/3268 ,  G06F21/602 ,  G06F21/6218 ,  H04L9/083 ,  H04L9/14 ,  H04L9/3234 ,  H04L9/3271 ,  H04L63/0823

Abstract: Examples relate to a network endpoint device of a first network infrastructure that facilitates remote attestation of the network endpoint device. In same examples, the network endpoint device comprises a trusted platform module and a processor that implements machine readable instructions that cause the network endpoint device to: receive a connection request from a computing device residing a second network infrastructure external to the first network infrastructure, the request comprising s security challenge; determine, based on a configuration of the network endpoint device, whether it can access information stored in the trusted platform module; and responsive to determining that information in the trusted platform module can be accessed, facilitate connection of the computing device to the network endpoint device by accessing the information and responding to the security challenge.

公开(公告)号：US20180107509A1

公开(公告)日：2018-04-19

申请号：US15573542

申请日：2015-07-31

Applicant: Adrian SHAW ,  Kate MALLICHAN ,  David PLAQUIN ,  Hewlett Packard Enterprise Development LP

Inventor： Adrian Shaw ,  Kate Mallichan ,  David Plaquin

IPC: G06F9/48 ,  G06F9/44

CPC classification number: G06F9/4856 ,  G06F9/4406

Abstract: An example method for migrating a live operating system from a first computing device to a second computing device is provided. The example method comprises (a) providing register values of a processor of a first computing device to a second computing device which is in communication with the first computing device; (b) providing contents of a dynamic random access memory, DRAM, of the first computing device to the second computing device; (c) storing the register values in a protected memory of the second computing device, wherein the protected memory is separate from a memory used by the second computing device during normal operation of the second computing device; (d) storing the contents of the DRAM of the first computing device in a DRAM of the second computing device; and (e) loading the register values from the protected memory to registers of a processor of the second computing device.