RSA Encryption

Discussion in 'BIOS Mods' started by mackphx, Jun 14, 2014.

  1. mackphx

    mackphx MDL Junior Member

    Sep 4, 2013
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    Can a RSA encrypted BIOS be modified?
     
  2. Bytebuster

    Bytebuster MDL Addicted

    Apr 30, 2013
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    ...read this. ;)
     
  3. donovan6000

    donovan6000 MDL Novice

    Dec 29, 2010
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    Depends on if the rom contains signature verification checks. All the initial HP bios that were RSA signed didn't have these, so they can be modded. However all the new HP bios do verify the signatures of the PEI and DXE component of the rom everytime your computer starts up, so these kind of bios aren't currently moddable.