CopySslCertToTrustedRoot.ps1

# Based on # https://social.technet.microsoft.com/wiki/contents/articles/28753.powershell-trick-copy-certificates-from-one-store-to-another.aspx

$SourceStoreScope = 'LocalMachine'
$SourceStorename = 'My'
$CertificateSubjectPattern = '*mytestdomain'

Write-Host 'Looking for certificates with subject' $CertificateSubjectPattern 'in' $SourceStoreScope'\'$SourceStorename
 
$SourceStore = New-Object  -TypeName System.Security.Cryptography.X509Certificates.X509Store  -ArgumentList $SourceStorename, $SourceStoreScope
$SourceStore.Open([System.Security.Cryptography.X509Certificates.OpenFlags]::ReadOnly)
 
$cert = $SourceStore.Certificates | Where-Object  -FilterScript {
    $_.subject -like $CertificateSubjectPattern
}

Write-Host 'Certificate(s) found:'
Write-Host $cert.subject

$DestStoreScope = 'LocalMachine'
$DestStoreName = 'Root'
 
$DestStore = New-Object  -TypeName System.Security.Cryptography.X509Certificates.X509Store  -ArgumentList $DestStoreName, $DestStoreScope
$DestStore.Open([System.Security.Cryptography.X509Certificates.OpenFlags]::ReadWrite)
$DestStore.Add($cert)
 
$SourceStore.Close()
$DestStore.Close()

Write-Host 'Certificate(s) added to:' $DestStoreScope'\'$DestStoreName

# https://ignas.me/tech/self-signed-multi-domain-ssl-certificate/