(AutoIt) DKIM Signature using Windows Current User Certificate Store

This is a Windows-specific example to load a certificate from the Current User (registry-based) certificate store, and then use the certificate's associated private key for a DKIM signature.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

; This example requires the Chilkat API to have been previously unlocked.
; See Global Unlock Sample for sample code.

$oCert = ObjCreate("Chilkat.Cert")

; The LoadByCommonName method searches the Windows Local Machine and Current User 
; registry-based certificate stores for a certificate having the common name specified. 
; If found, the certificate is loaded and ready for use.
Local $bSuccess = $oCert.LoadByCommonName("My Certificate ABC")
If ($bSuccess <> True) Then
    ConsoleWrite($oCert.LastErrorText & @CRLF)
    Exit
EndIf

; The certificate must have an associated private key installed, and it must be a
; private key that has been marked "exportable" when it was originally installed.
If (Not $oCert.HasPrivateKey()) Then
    ConsoleWrite("This certificate does not have a private key available." & @CRLF)
    Exit
EndIf

Local $oPrivKey

$oPrivKey = $oCert.ExportPrivateKey()
If ($oCert.LastMethodSuccess = False) Then
    ConsoleWrite($oCert.LastErrorText & @CRLF)
    Exit
EndIf

$oDkim = ObjCreate("Chilkat.Dkim")

; Load the private key into the DKIM object:
$bSuccess = $oDkim.LoadDkimPk($oPrivKey.GetPkcs8Pem(),"")
If ($bSuccess <> True) Then
    ConsoleWrite($oDkim.LastErrorText & @CRLF)
    Exit
EndIf

; The private key has been loaded into the DKIM object.  See the other DKIM
; examples for guidance on how to create a DKIM signature...