AutoIt

POP3 Verify Signed (S/MIME) Email

Demonstrates how to download and verify digitally signed S/MIME email. AutoIt

Local $bSuccess = False

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

$oMailman = ObjCreate("Chilkat.MailMan")

; Set the POP3 server's hostname
$oMailman.MailHost = "pop.example.com"

; Set the POP3 login/password.
$oMailman.PopUsername = "myLogin"
$oMailman.PopPassword = "myPassword"

$oStUidls = ObjCreate("Chilkat.StringTable")
$bSuccess = $oMailman.FetchUidls($oStUidls)
If ($bSuccess = False) Then
    ConsoleWrite($oMailman.LastErrorText & @CRLF)
    Exit
EndIf

$oEmail = ObjCreate("Chilkat.Email")
$oCert = ObjCreate("Chilkat.Cert")

Local $iCount = $oStUidls.Count
Local $i = 0
While $i < $iCount
    ; Download the full email.
    $bSuccess = $oMailman.FetchByUidl($oStUidls.StringAt($i),False,0,$oEmail)
    If ($bSuccess = False) Then
        ConsoleWrite($oMailman.LastErrorText & @CRLF)
        Exit
    EndIf

    ConsoleWrite($i & @CRLF)
    ConsoleWrite("From: " & $oEmail.From & @CRLF)
    ConsoleWrite("Subject: " & $oEmail.Subject & @CRLF)

    ; The security layers of signed and/or encrypted emails
    ; are automatically "unwrapped" when loaded into
    ; a Chilkat email object.
    ; An application only needs to check to see if an email
    ; was received signed or encrypted, and then examine
    ; the success/failure.  For example:
    If ($oEmail.ReceivedSigned = True) Then

        ConsoleWrite("This email was signed." & @CRLF)

        ; Check to see if the signatures were verified.
        If ($oEmail.SignaturesValid = True) Then
            ConsoleWrite("Digital signature(s) verified." & @CRLF)
            ConsoleWrite("Signer: " & $oEmail.SignedBy & @CRLF)

            $bSuccess = $oEmail.LastSignerCert(0,$oCert)
            If ($bSuccess = False) Then
                ConsoleWrite($oEmail.LastErrorText & @CRLF)
                Exit
            EndIf

            ConsoleWrite("Signing cert: " & $oCert.SubjectCN & @CRLF)
        EndIf

    Else
        ConsoleWrite("Digital signature verification failed." & @CRLF)
    EndIf

    $i = $i + 1
Wend

$oMailman.Pop3EndSession()