Proving BIOS trust in a TCPA compliant system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 31, 2006
Grant Date -
Feb 20, 2003
app pub date -
Aug 16, 2001
filing date -
Aug 16, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully