Processing apparatus and integrated circuit to prevent...

Details Processing apparatus and integrated circuit to prevent... Processing apparatus and integrated circuit to prevent...

2000-12-20

2010-02-02

Henning, Matthew T (Department: 2431)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

By stored data protection

C713S190000, C713S191000, C713S501000

Reexamination Certificate

active

07657758

ABSTRACT:
A processing apparatus including an internal circuit having a CPU and internal devices and an external circuit including external devices provided externally of the internal circuit, and the like, and is aimed to prevent illicit access and reverse engineering. The internal circuit including a CPU, internal devices and a bus line connecting the CPU to the internal devices and extending externally, and the external circuit including external devices provided externally of an externally extending portion of the bus line. The internal circuit further including a ciphering section120provided at an entrance to an external side and ciphering addresses and data on the bus line by ciphering patterns according to a plurality of regions divided from an address space allotted to the entire external devices.

REFERENCES:
patent: 4168396 (1979-09-01), Best
patent: 4278837 (1981-07-01), Best
patent: 4525599 (1985-06-01), Curran et al.
patent: 4573119 (1986-02-01), Westheimer et al.
patent: 4628358 (1986-12-01), Robbins
patent: 4742546 (1988-05-01), Nishimura
patent: 4747073 (1988-05-01), Desbois et al.
patent: 5048086 (1991-09-01), Bianco et al.
patent: 5081675 (1992-01-01), Kittirutsunetorn
patent: 5081765 (1992-01-01), Fraser et al.
patent: 5237699 (1993-08-01), Little et al.
patent: 5400331 (1995-03-01), Lucak et al.
patent: 5404402 (1995-04-01), Sprunk
patent: 5428685 (1995-06-01), Kadooka et al.
patent: 5488661 (1996-01-01), Matsui
patent: 5515540 (1996-05-01), Grider et al.
patent: 5666516 (1997-09-01), Combs
patent: 5706445 (1998-01-01), Milhaupt et al.
patent: 5848159 (1998-12-01), Collins et al.
patent: 5915025 (1999-06-01), Taguchi et al.
patent: 5943421 (1999-08-01), Grabon
patent: 6115144 (2000-09-01), Hirokawa
patent: 6226237 (2001-05-01), Chan et al.
patent: 6272637 (2001-08-01), Little et al.
patent: 6345359 (2002-02-01), Bianco
patent: 6895506 (2005-05-01), Abu-Husein
patent: 6910094 (2005-06-01), Eslinger et al.
patent: 6971022 (2005-11-01), Katta et al.
patent: 6981156 (2005-12-01), Stern et al.
patent: 6985582 (2006-01-01), Sano et al.
patent: 6986053 (2006-01-01), Schwartz et al.
patent: 6989052 (2006-01-01), Wu et al.
patent: 7000119 (2006-02-01), Jia et al.
patent: 7005733 (2006-02-01), Kommerling et al.
patent: 7010124 (2006-03-01), Ishiguro et al.
patent: 7069404 (2006-06-01), Roche
patent: 7111176 (2006-09-01), Ellison et al.
patent: 7188255 (2007-03-01), Toh et al.
patent: 7194092 (2007-03-01), England et al.
patent: 7266202 (2007-09-01), Kawakami et al.
patent: 2002/0178083 (2002-11-01), Cianciarulo et al.
patent: 19922155 (2000-11-01), None
patent: 0660215 (1995-06-01), None
patent: 0 720098 (1996-07-01), None
patent: 2 787 216 (2000-06-01), None
patent: WO 99 13615 (1999-03-01), None
patent: WO 0019321 (2000-04-01), None
IBM Technical Disclosure Bulletin, Jun. 1980, IBM, vol. 23, Issue 1, pp. 203.
Microsoft Press Computer Dictionary Third Edition, 1997, Microsoft Press, p. 302.
Schneier, “Applied Cryptography”, Second Edition, 1996, John Wiley and Sons,pp. 180-181.
Microsoft Computer Dictionary Third Edition, 1997, Microsoft Corporation, pp. 68.
Bruce Schneier, “Applied Cryptography, Second Edition”, 1996, John Wiley and Sons, pp. 225.

Affiliated with

Also associated with

Rating

Processing apparatus and integrated circuit to prevent... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Processing apparatus and integrated circuit to prevent..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Processing apparatus and integrated circuit to prevent... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4207440