out0xb2

Write-Host "Checking for Administrator permission..."
if (-NOT ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator")) {
  Write-Warning "Insufficient permissions to run this script. Open the PowerShell console as administrator and run this script again."
  Break
} else {
  Write-Host "Running as administrator — continuing execution..." -ForegroundColor Green
}

 $patchfile  = $args[0]

out0xb2

$file  = Get-Content -Encoding Byte $args[0]

$chop = $file[40..($file.Length - 1)]
if (($chop[0] -ne 0x30) -or ($chop[1] -ne 0x82 )) { 
    Write-Error "Cannot find signature"
    exit 1 
}
Write-Host "Found signature magic"

$sig_length = ($chop[2] * 256) + $chop[3] + 4 # ASN size plus header of 4 bytes

out0xb2

The old, but still applicable, UEFI Secure Boot functional tests from the Windows Logo Kit (WLK), now Hardware Lab Kit (HLK), along with testing instructions...

• Instructions https://techcommunity.microsoft.com/t5/windows-hardware-certification/pre-submission-testing-for-uefi-submissions/ba-p/364829

• Example Scroll to the bottom of the instructions page... Or here is the direct link: https://msdnshared.blob.core.windows.net/media/MSDNBlogsFS/prod.evol.blogs.msdn.com/CommunityServer.Components.PostAttachments/00/10/47/32/33/UefiSecureBootManualTests.zip

out0xb2

Keybase proof

I hereby claim:

• I am out0xb2 on github.
• I am out0xb2 (https://keybase.io/out0xb2) on keybase.
• I have a public key ASC5tROD63_brnqywF19OzNUytJPwfq2R-7D80QDkR_IJQo

To claim this, I am signing this object: