Device and method for disabling an override hardware pin...

Information security – Protection of hardware – Via power supply

Reexamination Certificate

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Details

C713S310000, C713S300000, C713S324000, C713S330000, C713S152000, C713S152000, C726S035000

Reexamination Certificate

active

07089595

ABSTRACT:
One embodiment of present invention is a method for preventing the modification of a primary pass-phrase of an electronic system. Access to stored information such as a primary pass-phrase is disabled despite assertion of an override pin of an integrated circuit device of the electronic device when an override disable pin of the integrated circuit device is asserted prior to assertion of the override pin.

REFERENCES:
patent: 4841492 (1989-06-01), Russell
patent: 5231666 (1993-07-01), Matyas
patent: 5249227 (1993-09-01), Bergum et al.
patent: 5349643 (1994-09-01), Cox et al.
patent: 5401921 (1995-03-01), D'Antonio et al.
patent: 5451912 (1995-09-01), Torode
patent: 5457748 (1995-10-01), Bergum et al.
patent: 5778070 (1998-07-01), Mattison
patent: 5812861 (1998-09-01), Ishac et al.
patent: 5844986 (1998-12-01), Davis
patent: 5901284 (1999-05-01), Hamdy-Swink
patent: 5919257 (1999-07-01), Trostle
patent: 5935242 (1999-08-01), Madany et al.
patent: 5937063 (1999-08-01), Davis
patent: 5944821 (1999-08-01), Angelo
patent: 5949272 (1999-09-01), Bickford et al.
patent: 5954818 (1999-09-01), Dalvi et al.
patent: 5978860 (1999-11-01), Chan et al.
patent: 6073243 (2000-06-01), Dalvi et al.
patent: 6121635 (2000-09-01), Watanabe et al.
patent: 6487667 (2002-11-01), Brown
Schneier, Bruce, “Applied Cryptography: Protocols, Algorithms, and Source Code in C,” 2nd ed., Oct. 1995, section 2.6, pp. 34-41; pp. 574-577.

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