Proving BIOS trust in a TCPA compliant system

Details Proving BIOS trust in a TCPA compliant system Proving BIOS trust in a TCPA compliant system

2006-01-31

2006-01-31

Du, Thuan (Department: 2116)

Electrical computers and digital processing systems: support

Digital data processing system initialization or configuration

Loading initialization program

C713S155000

Reexamination Certificate

active

06993648

ABSTRACT:
When a flash unlock routine unlocks the flash memory to permit updating of a BIOS image, a message is left in secure non-volatile memory, such as a EEPROM. Upon the next re-boot, the boot block code will detect the special message in the non-volatile memory and perform a signature verification of the next block of code that is to be executed during the POST process. This code block will check the remainder of the BIOS image before POST proceeds.

REFERENCES:
patent: 5522076 (1996-05-01), Dewa et al.
patent: 5802592 (1998-09-01), Chess et al.
patent: 5844986 (1998-12-01), Davis
patent: 5937063 (1999-08-01), Davis
patent: 5987536 (1999-11-01), Johnson et al.
patent: 6009524 (1999-12-01), Olarig et al.
patent: 6138239 (2000-10-01), Veil
patent: 6188602 (2001-02-01), Alexander et al.
patent: 6263431 (2001-07-01), Lovelace et al.
patent: 6272628 (2001-08-01), Aguilar et al.
patent: 6308265 (2001-10-01), Miller
patent: 6463155 (2002-10-01), Akiyama et al.
patent: 6581159 (2003-06-01), Nevis et al.
patent: 6715067 (2004-03-01), Rhoads et al.
patent: 6754895 (2004-06-01), Bartel et al.
“Client Security in the Enterprise Network: Dell's Perspective,”Dell Highlight, Feb. 2000, pp. 1-6.
“Trusted Computing Platform Alliance (TCPA),”Main Specification Version 1.0, Jan. 25, 2001, pp. 1-284.

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