US 8,751,813 B2 · Cross validation of data using multiple subsystems

Abstract

A method and apparatus for cross validation of data using multiple subsystems are described. According to one embodiment of the invention, a computer comprises a first subsystem and a second subsystem; and a memory, the memory comprising a first memory region and a second memory region, the first memory region being associated with the first subsystem and a second memory region being associated with the second subsystem; upon start up of the computer, the first subsystem to validate the second memory region and the second subsystem to validate the first memory region.

Claims20

Dependent claims

A system comprising:

a first processor and a second processor;
a first memory and a second memory;
and
a trusted platform module to generate a first expected result and a second expected result for verification of contents of the first and second memory;
wherein the first processor to verify the contents of the second memory as a function of the first expected value generated by the trusted platform module and the second processor to verify the contents of the first memory as a function of the second expected value generated by the trusted platform module.

2 more elements

One or more non-transitory, machine-readable storage media comprising a plurality of instructions stored thereon that, in response to being executed, result in a computer system:

generating, using a trusted platform module of the computing system, a first expected result and a second expected result for verification of a first memory and a second memory of the computing system;
verifying, using a first processor of the computing system, contents of a first region of the second memory having stored therein a software image for the second processor as a function of the first expected result;
and
verifying, using the second processor of the computing system, contents of a first region of the first memory having stored therein a software image for the first processor as a function of the second expected result.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

13/550,583Filed 16 Jul 2012 · continuation

Priority

9 Jun 2004

Published

US 2012/0284525 A18 Nov 2012

Granted

10 Jun 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

G06F 21/57
Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems: certifying or…
G06F 12/1433
The protection being physical, e.g. cell, word, block: for a module or a part of a module
G06F 21/575
Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates…:…
G06F 21/64
Protecting data: protecting data integrity, e.g. using checksums, certificates or signatures

Family

Application10/865,144Parent of this continuation · filed 9 Jun 2004

Application12/502,868Parent of this continuation · filed 14 Jul 2009

US 7,594,124 B2Parent of this continuation · filed 22 Sep 2009

US 2012/0284525 A1Pre-grant publication · published 8 Nov 2012

US 8,225,101 B2Parent of this continuation

US 2005/0278499 A1Published application

US 2009/0282268 A1Published application

US 8,751,813 B2This patent

From the US filing history. Foreign family members aren’t listed.

Cross validation of data using multiple subsystems

Life of this patent

Cross validation of data using multiple subsystems

Life of this patent

Abstract

Claims20