Information security – Access control or authentication
Reexamination Certificate
2011-08-09
2011-08-09
El Hady, Nabil M (Department: 2434)
Information security
Access control or authentication
C726S017000, C380S255000, C347S005000, C347S006000, C347S007000, C710S036000
Reexamination Certificate
active
07996880
ABSTRACT:
A method of attempting a write to an entity to cause performance of an action is provided in which a first message is sent to the entity which causes performance of the action and adjustment of initial values in respective security fields of the entity to respective first adjusted values, and a second message is sent to the entity which causes adjustment of the initial values to respective second adjusted values. The security fields have write restrictions which prevent values in the security fields being adjusted, in accordance with the first message, if the initial values have been adjusted in accordance with the second message, and vice versa. The action is only performed when the initial values have been adjusted in accordance with the first message. The respective first adjusted values are different than the respective second adjusted values.
REFERENCES:
patent: 4593384 (1986-06-01), Kleijne
patent: 4685056 (1987-08-01), Barnsdale et al.
patent: 4792910 (1988-12-01), Lange
patent: 4999814 (1991-03-01), Hashimoto
patent: 5016276 (1991-05-01), Matumoto et al.
patent: 5185717 (1993-02-01), Mori
patent: 5193012 (1993-03-01), Schmidt
patent: 5309516 (1994-05-01), Takaragi et al.
patent: 5315635 (1994-05-01), Kane et al.
patent: 5363447 (1994-11-01), Rager et al.
patent: 5375089 (1994-12-01), Lo
patent: 5406627 (1995-04-01), Thompson et al.
patent: 5457748 (1995-10-01), Bergum et al.
patent: 5485245 (1996-01-01), Kobayashi et al.
patent: 5581198 (1996-12-01), Trimberger
patent: 5594839 (1997-01-01), Shu
patent: 5621698 (1997-04-01), Lee
patent: 5673316 (1997-09-01), Auerbach et al.
patent: 5701505 (1997-12-01), Yamashita et al.
patent: 5784642 (1998-07-01), Smith et al.
patent: 5796416 (1998-08-01), Silverbrook
patent: 5815286 (1998-09-01), Matsuba et al.
patent: 5983225 (1999-11-01), Anfindsen
patent: 6003134 (1999-12-01), Kuo et al.
patent: 6026492 (2000-02-01), Cromer et al.
patent: 6027195 (2000-02-01), Gauthier et al.
patent: 6064989 (2000-05-01), Cordery et al.
patent: 6065113 (2000-05-01), Shiell et al.
patent: 6113208 (2000-09-01), Benjamin et al.
patent: 6154195 (2000-11-01), Young et al.
patent: 6196670 (2001-03-01), Saruta
patent: 6217165 (2001-04-01), Silverbrook
patent: 6246970 (2001-06-01), Silverbrook et al.
patent: 6283572 (2001-09-01), Kumar et al.
patent: 6312074 (2001-11-01), Walker
patent: 6314521 (2001-11-01), Debry
patent: 6354689 (2002-03-01), Couwenhoven et al.
patent: 6385728 (2002-05-01), DeBry
patent: 6415142 (2002-07-01), Martineau
patent: 6587947 (2003-07-01), O'Donnell et al.
patent: 6601211 (2003-07-01), Norman
patent: 6651149 (2003-11-01), Iwasaki
patent: 6655768 (2003-12-01), Takagi
patent: 6667895 (2003-12-01), Jang et al.
patent: 6734538 (2004-05-01), Sturcken
patent: 6738788 (2004-05-01), Horng et al.
patent: 6757831 (2004-06-01), Folmsbee
patent: 7031012 (2006-04-01), Serizawa
patent: 7055029 (2006-05-01), Collins et al.
patent: 7124170 (2006-10-01), Sibert
patent: 7155590 (2006-12-01), Mathis
patent: 7165177 (2007-01-01), Gilbert et al.
patent: 7178040 (2007-02-01), Takada et al.
patent: 7192114 (2007-03-01), Suzuki et al.
patent: 7224803 (2007-05-01), Cheng
patent: 7271908 (2007-09-01), Noguchi et al.
patent: 7273483 (2007-09-01), Wiener et al.
patent: 7278697 (2007-10-01), Plunkett
patent: 7467839 (2008-12-01), Walmsley
patent: 7483312 (2009-01-01), Fukuda et al.
patent: 7611215 (2009-11-01), Walmsley
patent: 2001/0010724 (2001-08-01), Murakami
patent: 2002/0013898 (2002-01-01), Sudia et al.
patent: 2002/0060707 (2002-05-01), Yu et al.
patent: 2002/0093358 (2002-07-01), Kang
patent: 2002/0103999 (2002-08-01), Camnisch et al.
patent: 2002/0116616 (2002-08-01), Mi et al.
patent: 2004/0046811 (2004-03-01), D'Souza et al.
patent: 2005/0286287 (2005-12-01), Park et al.
patent: 0863004 (1998-09-01), None
patent: 0963854 (1999-12-01), None
patent: 0974467 (2000-01-01), None
patent: 0983855 (2000-03-01), None
patent: 1157840 (2001-11-01), None
patent: WO98/40222 (1998-09-01), None
patent: WO 98/40222 (1998-09-01), None
patent: WO 99/08875 (1999-02-01), None
patent: WO99/08875 (1999-02-01), None
El Hady Nabil M
Powers William S
Silverbrook Research Pty Ltd
LandOfFree
Secure updating of integrated circuits does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Secure updating of integrated circuits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Secure updating of integrated circuits will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2777690