(AutoIt) Create PKCS1 RSA Signature with PEM Private Key

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Demonstrates how to load a private key from a PEM file and create a PKCS1 RSA digital signature.

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

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

$oPkey = ObjCreate("Chilkat.PrivateKey")

; Load the private key from an RSA PEM file:
Local $bSuccess = $oPkey.LoadPemFile("pvkey2_rsa.pem")

Local $sPkeyXml
; Get the private key in XML format:
$sPkeyXml = $oPkey.GetXml()

$oRsa = ObjCreate("Chilkat.Rsa")

; Import the private key into the RSA object:
$bSuccess = $oRsa.ImportPrivateKey($sPkeyXml)
If ($bSuccess <> True) Then
    ConsoleWrite($oRsa.LastErrorText & @CRLF)
    Exit
EndIf

; Get the signature as hex.
$oRsa.EncodingMode = "hex"

Local $strData = "This is the string to be signed."

; Sign the string using the sha-1 hash algorithm.
; Other valid choices are "md2", "md5", "sha256",
; "sha384", and "sha512".
Local $sHexSig = $oRsa.SignStringENC($strData,"sha-1")

ConsoleWrite($sHexSig & @CRLF)

ConsoleWrite("Success!" & @CRLF)