Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2007-02-06
2007-02-06
Song, Hosuk (Department: 2135)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S176000, C713S181000
Reexamination Certificate
active
09266207
ABSTRACT:
A general-purpose processor (CPU) is configured with a new mechanism facilitating an authenticated boot sequence that provides building blocks for client-side rights management when the system is online, and provides continued protection of persistent data even when the system goes offline or is rebooted. The CPU includes a cryptographic key pair, and a manufacturer certificate testifying that the manufacturer built the CPU according to a known specification. The operating system (OS) includes a unique block of code, or “boot block” that can establish OS identity by extraction from a digitally signed boot block or by computing a hash digest of the boot block. During booting, the CPU executes a single opcode, followed by the boot block, as an atomic operation to set the identity of the OS into the software identity register. The subscriber unit then can establish a chain of trust to a content provider.
REFERENCES:
patent: 4827508 (1989-05-01), Shear
patent: 4969189 (1990-11-01), Ohta et al.
patent: 4977594 (1990-12-01), Shear
patent: 5007082 (1991-04-01), Cummins
patent: 5023907 (1991-06-01), Johnson et al.
patent: 5050213 (1991-09-01), Shear
patent: 5140634 (1992-08-01), Guillou et al.
patent: 5276311 (1994-01-01), Hennige
patent: 5335334 (1994-08-01), Takahashi et al.
patent: 5349643 (1994-09-01), Cox et al.
patent: 5410598 (1995-04-01), Shear
patent: 5473690 (1995-12-01), Grimonprez et al.
patent: 5473692 (1995-12-01), Davis
patent: 5491827 (1996-02-01), Holtey
patent: 5544246 (1996-08-01), Mandelbaum et al.
patent: 5557518 (1996-09-01), Rosen
patent: 5557765 (1996-09-01), Lipner et al.
patent: 5623637 (1997-04-01), Jones et al.
patent: 5654746 (1997-08-01), McMullan, Jr. et al.
patent: 5664016 (1997-09-01), Preneel et al.
patent: 5671280 (1997-09-01), Rosen
patent: 5721781 (1998-02-01), Deo et al.
patent: 5745886 (1998-04-01), Rosen
patent: 5757919 (1998-05-01), Herbert et al.
patent: 5796824 (1998-08-01), Hasebe et al.
patent: 5802592 (1998-09-01), Chess et al.
patent: 5812662 (1998-09-01), Hsu et al.
patent: 5812980 (1998-09-01), Asai
patent: 5841869 (1998-11-01), Merkling et al.
patent: 5860099 (1999-01-01), Milios et al.
patent: 5872847 (1999-02-01), Boyle et al.
patent: 5892900 (1999-04-01), Ginter
patent: 5892902 (1999-04-01), Clark
patent: 5892904 (1999-04-01), Atkinson et al.
patent: 5910987 (1999-06-01), Ginter et al.
patent: 5915019 (1999-06-01), Ginter et al.
patent: 5917912 (1999-06-01), Ginter et al.
patent: 5919257 (1999-07-01), Trostle
patent: 5920861 (1999-07-01), Hall et al.
patent: 5933498 (1999-08-01), Schneck et al.
patent: 5940504 (1999-08-01), Griswold
patent: 5943422 (1999-08-01), Van Wie et al.
patent: 5944821 (1999-08-01), Angelo
patent: 5949876 (1999-09-01), Ginter et al.
patent: 5953502 (1999-09-01), Helbig, Sr.
patent: 5958050 (1999-09-01), Griffin et al.
patent: 5963980 (1999-10-01), Coulier et al.
patent: 5974546 (1999-10-01), Anderson
patent: 5982891 (1999-11-01), Ginter et al.
patent: 5991399 (1999-11-01), Graunke et al.
patent: 5991876 (1999-11-01), Johnson et al.
patent: 6006332 (1999-12-01), Rabne et al.
patent: 6009274 (1999-12-01), Fletcher et al.
patent: 6009401 (1999-12-01), Horstmann
patent: 6026166 (2000-02-01), LeBourgeois
patent: 6032257 (2000-02-01), Olarig et al.
patent: 6038551 (2000-03-01), Barlow et al.
patent: 6073124 (2000-06-01), Krishnan et al.
patent: 6092189 (2000-07-01), Fisher et al.
patent: 6105137 (2000-08-01), Graunke et al.
patent: 6112181 (2000-08-01), Shear et al.
patent: 6118873 (2000-09-01), Lotspiech et al.
patent: 6138119 (2000-10-01), Hall et al.
patent: 6148083 (2000-11-01), Fieres et al.
patent: 6148387 (2000-11-01), Galasso et al.
patent: 6148402 (2000-11-01), Campbell
patent: 6157721 (2000-12-01), Shear et al.
patent: 6175917 (2001-01-01), Arrow et al.
patent: 6185678 (2001-02-01), Arbaugh et al.
patent: 6185683 (2001-02-01), Ginter et al.
patent: 6189100 (2001-02-01), Barr et al.
patent: 6192473 (2001-02-01), Ryan, Jr. et al.
patent: 6212636 (2001-04-01), Boyle et al.
patent: 6223284 (2001-04-01), Novoa et al.
patent: 6229894 (2001-05-01), Van Oorschot et al.
patent: 6230285 (2001-05-01), Sadowsky et al.
patent: 6237786 (2001-05-01), Ginter et al.
patent: 6240185 (2001-05-01), Van Wie et al.
patent: 6253193 (2001-06-01), Ginter et al.
patent: 6263431 (2001-07-01), Lovelace et al.
patent: 6272629 (2001-08-01), Stewart
patent: 6292569 (2001-09-01), Shear et al.
patent: 6327652 (2001-12-01), England et al.
patent: 6327660 (2001-12-01), Patel
patent: 6330588 (2001-12-01), Freeman
patent: 6338139 (2002-01-01), Ando et al.
patent: 6341373 (2002-01-01), Shaw
patent: 6363486 (2002-03-01), Knapton, III
patent: 6363488 (2002-03-01), Ginter et al.
patent: 6367012 (2002-04-01), Atkinson et al.
patent: 6381741 (2002-04-01), Shaw
patent: 6389402 (2002-05-01), Ginter et al.
patent: 6389537 (2002-05-01), Davis et al.
patent: 6427140 (2002-07-01), Ginter et al.
patent: 6449367 (2002-09-01), Van Wie et al.
patent: 6477252 (2002-11-01), Faber et al.
patent: 6477648 (2002-11-01), Schell et al.
patent: 6480961 (2002-11-01), Rajasekharan et al.
patent: 6560706 (2003-05-01), Carbajal et al.
patent: 6609199 (2003-08-01), DeTreville
patent: 6640304 (2003-10-01), Ginter et al.
patent: 6735696 (2004-05-01), Hannah
patent: 6820063 (2004-11-01), England et al.
patent: 7079649 (2006-07-01), Bramhill et al.
patent: 2002/0007452 (2002-01-01), Traw et al.
patent: 2002/0069365 (2002-06-01), Howard et al.
patent: 2002/0107803 (2002-08-01), Lisanke et al.
patent: 2002/0120936 (2002-08-01), Del Beccaro et al.
patent: 2002/0152173 (2002-10-01), Rudd
patent: 0 695 985 (1996-02-01), None
patent: WO 99 38070 (1999-07-01), None
Arbaugh, A Secure and Reliable Bootstrap Architecture, 1996, pp. 1-7.
Stallings, Cryptography and Network Security, 1999, 2nd Edition, pp. 186-187.
Microsoft Press Computer Dictionary, Third Edition, published by Microsoft Press, Copyright 1997, pp. 27, 34, and 341.
Arbaugh et al., “A Secure and Reliable Bootstrap Architecture”, Distributed Systems Laboratory, Philadelphia, PA, 1997, pp. 65-71.
Lampson et al., “Authentication in Distributed Systems: Theory and Practice”, Digital Equipment Corporation, ACM Transactions on Computer Systems, vol. 10, No. 4, Nov. 1992, pp. 265-310.
Clark et al., “Bits: A Smartcard Protected Operating System”, Communications of the ACM, vol. 37, No. 11, Nov. 1994, pp. 66-70, 94.
Yee, “Using Secure Coprocessors”, School of Computer Science, Carnegie Mellon University, 1994, 104 pages.
Schneier, B., “Applied Cryptography”, Applied Cryptography. Protocols, Algoriths, and Source Code in C, 1996, pp. 574-577.
“Facing An Internet Security Minefield Microsoft Hardens NT Server's Defenses” Windows Watcher Sep. 12, 1997 Issue 9 8 pages.
Stallings, Cryptography and Network Security, 1999, Prentice Hall, 2nd Edition, pp. 143-147.
Arbaugh, William A. et al., “A Secure and Reliable Bootstrap Architecture”, 1997 IEEE, pp. 65-71.
Lampson, Butler et al., “Authentication in Distributed Systems: Theory and Practice”, ACM Transactions on Computer Systems, vol. 10, No. 4, Nov. 1992, pp. 265-310.
Clark, Paul C. et al., “BITS: A Smartcard Protected Operating System”, Communications of the ACM, Nov. 1994, vol. 37, No. 11, pp. 66-70, 94.
Yee, Bennet, “Using Secure Coprocessors”, School of Computer Science, Carnegie Mellon University, Pittsburgh, Pennsylvania, 1994, 104 pages.
Young, Robbin, “Facing an Internet Security Minefield, Microsoft Hardens NT Server Defenses”, Windows Watcher, Sep. 12, 1997, vol. 7 Issue 9, p. 1, 6p, 1 chart.
Feiertag, et al., “The Foundations of a provably secure operating system( PSOS)”, California Proceedings of the National Computer Conference AFIPS Press, 1979, pp. 329-334.
Arbaugh, et al., “A Secure and Reliable Bootstrap Architecture”, Assumptions, pp. 1-7, Dec. 1996.
McKenzie, Seybold Report on Internet Publishing, vol. 1, No. 4, p. 6(9), Dec. 1996.
M. Kuhn, “The TrustNo 1 Cryptoproc
DeTreville John D.
England Paul
Lampson Butler W.
Klimach Paula
Lee & Hayes PLLC
Song Hosuk
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