Someone wrote in [personal profile] mjg59,
You seem to be describing Static Root for Trust Measurement (SRTM) where each part of the boot sequence verifies the integrity of the next phase. Afaik if you use Dynamic Root for Trust Measurement (DRTM) then a bug in a boot loader is not enough to compromise the system. Qubes development blog has somewhat related posts

http://theinvisiblethings.blogspot.com/2010/04/remotely-attacking-network-cards-or-why.html
http://theinvisiblethings.blogspot.com/2009/01/why-do-i-miss-microsoft-bitlocker.html

You might also want to read the description of the x86 SENTER/SINIT (secure init) instruction.


(Read 3 comments)

Post a comment in response:

From:
Anonymous
OpenID
Identity URL: 
User
Account name:
Password:
If you don't have an account you can create one now.
Subject:
HTML doesn't work in the subject.

Message:

If you are unable to use this captcha for any reason, please contact us by email at support@dreamwidth.org


 
Notice: This account is set to log the IP addresses of everyone who comments.
Links will be displayed as unclickable URLs to help prevent spam.