Re: [edk2] Authenticated variable drivers question

Subject: Re: [edk2] Authenticated variable drivers question

From: Andrew Fish <>


Date: 2012-01-29 16:49:43

Please see UEFI 2.3.1 specification for a description of how Authenticated variables work. 

Andrew Fish

On Jan 29, 2012, at 12:06 AM, nicolas wrote:

hi, experts:
I have reviewed SecurityPkg\VariableAuthenticated\Pei && VariableRuntimeDxe driver, found:
1. Variable Peim
     It's same with MdeModulePkg\Universal\Variable\Pei except it would check gEfiAuthenticatedVariableGuid in
     variable store header.
     GetVariable() function did not do any authenticated operation.
2. VariableRuntimeDxe driver
    Only SetVariable() function did authenticated operation.
Why not add authenticated operations in GetVariable() function?
best wishes,

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