Communications between modules of a computing apparatus

Details Communications between modules of a computing apparatus Communications between modules of a computing apparatus

2007-06-26

2007-06-26

Pham, Chi (Department: 2616)

Multiplex communications

Data flow congestion prevention or control

Control of data admission to the network

C370S396000, C370S401000, C380S255000, C713S182000, C713S189000

Reexamination Certificate

active

09913453

ABSTRACT:
A computing apparatus comprises a plurality of hardware modules (102,104,106) and a shared communication infrastructure (110) by which the modules can communicate with each other in the usual way. In order to increase the level of trust and security in the apparatus, a trusted hardware module (120) is also provided and is connected to the other modules by respective communication paths (122a;122b;122c), distinct from the communication infrastructure, by which each of those modules can communicate directly with the trusted module but cannot communicate directly with any other of the modules. The trusted module can therefore have secure communications, for example of “unsafe” data, with each of the other modules without any of the remaining modules eavesdropping, and the trusted module can route unsafe data between any pair of the other modules, or decline to provide such routing, for example in dependence on policy stored in the trusted module.

REFERENCES:
patent: 5361359 (1994-11-01), Tajalli et al.
patent: 5421006 (1995-05-01), Jablon et al.
patent: 5444850 (1995-08-01), Chang
patent: 5530758 (1996-06-01), Marino et al.
patent: 5596718 (1997-01-01), Boebert et al.
patent: 5680547 (1997-10-01), Chang
patent: 5802178 (1998-09-01), Holden et al.
patent: 5822435 (1998-10-01), Boebert et al.
patent: 6138239 (2000-10-01), Veil
patent: 6330670 (2001-12-01), England et al.
patent: 6385724 (2002-05-01), Beckman et al.
patent: 0 510 244 (1992-10-01), None
patent: 0 848 315 (1998-06-01), None
patent: 0 849 657 (1998-06-01), None
patent: 94/01821 (1993-07-01), None
patent: 94/01821 (1994-01-01), None
patent: WO 95/24696 (1995-09-01), None
patent: WO 97/07463 (1997-02-01), None
patent: WO 97/37305 (1997-10-01), None
patent: WO 98/15082 (1998-04-01), None
patent: WO 98/25372 (1998-06-01), None
patent: 98/36517 (1998-08-01), None
Anderson, R. and Markus Kuhn, “Tamper Resistance—a Cautionary Note,” 16 pages, located at Internet address <www.cl.cam.ac.uk/˜mgk25/tamper.html> (1996).
Berger, J.L., et al., “Compartmented Mode Workstation: Prototype Highlights,”IEEE Transactions on Software Engineering, vol. 16, No. 6, pp. 608-618 (Jun. 1990).
Intel, “Wired for Management Baseline specification v2.0,”Boot Integrity Services Application Programming Interface Version 1.0, 64 pages (Dec. 28, 1998).
“Information technology-Security techniques-Entity Authentication—Part 3: Mechanisms using digital signature techniques,”ISO/IEC 9798-3, 6 pages (1998).
“Information technology-Security techniques-Key management—Part 3: Mechanisms using asymmetric techniques,”ISO/IEC 11770-3, pp. 1-23 and Annexes A-E (1999).
The Trusted Computing Platform Alliance, “Building a Foundation of Trust in the PC,”, 9 pages, located at Internet address <www.trustedpc.org/home/home.html> (Jan. 2000).
Trusted Computing Platform Alliance, Main Specification Version 1.0, 284 pages (Jan. 25, 2001).
Wiseman, S., et al, “The Trusted Path between SMITE and the User,”IEEE Proceedings of the Symposium on Security and Privacy, pp. 147-155 (1988).
Yee, B., “Using Secure Coprocessors,” Doctoral thesis—Carnegie Mellon University, pp. 1-94 (May 1994).

Affiliated with

Also associated with

Rating

Communications between modules of a computing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Communications between modules of a computing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Communications between modules of a computing apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3851813