Method and apparatus for firmware authentication

Details Method and apparatus for firmware authentication Method and apparatus for firmware authentication

1996-07-01

2000-10-24

Le, Dieu-Minh T.

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Protection at a particular protocol layer

713202, G06F 1130, H04L 900

Patent

active

061382361

ABSTRACT:
An apparatus for firmware authentication and methods of operating the same result in software upgradability to firmware without compromising the integrity of the firmware. The apparatus for firmware authentication of a boot PROM comprises a software programmable data section having a plurality of micro-code. An authentication section having a hash generator configured to generate a data hash in response to the plurality of micro-code programmed in the software programmable data section to authorize execution of the plurality of micro-code of the data section.

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patent: 5621796 (1997-04-01), Davis et al.
patent: 5633930 (1997-05-01), Davis et al.
patent: 5643086 (1997-07-01), Alcorn et al.
patent: 5768382 (1998-06-01), Schneier et al.

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