(AutoIt) Create CAdES p7m using AWS KMS to Sign in the Cloud

See more Signing in the Cloud Examples

Note: This example requires Chilkat v9.5.0.96 or greater.

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.

; Load the certificate used for signing.  The certificate's private key is stored in AWS KMS
; However, we still need the certificate locally (without private key).
$oCert = ObjCreate("Chilkat.Cert")
Local $bSuccess = $oCert.LoadFromFile("qa_data/certs/myCert.cer")
If ($bSuccess = False) Then
    ConsoleWrite($oCert.LastErrorText & @CRLF)
    Exit
EndIf

; Here's a screenshot showing the key ID of a private key in AWS KMS:


; To sign using AWS KMS, 
; add the following lines of code to specify your AWS authentication credentials,
; and the ID of the KMS private key.
$oJsonAwsKms = ObjCreate("Chilkat.JsonObject")
; Set the "service" equal to "aws_kms" to tell Chilkat to use AWS KMS for signing.
$oJsonAwsKms.UpdateString("service","aws_kms")
$oJsonAwsKms.UpdateString("access_key","ACCESS_KEY")
$oJsonAwsKms.UpdateString("secret_key","SECRET_KEY")
; Make sure to specify the correct region for your case.
$oJsonAwsKms.UpdateString("region","us-west-2")
; In the above screenshot, our key ID is "187012e8-008f-4fc7-b100-5efe6146dff2".  You will use your key ID.
$oJsonAwsKms.UpdateString("key_id","187012e8-008f-4fc7-b100-5efe6146dff2")

$bSuccess = $oCert.SetCloudSigner($oJsonAwsKms)

$oCrypt = ObjCreate("Chilkat.Crypt2")

$bSuccess = $oCrypt.SetSigningCert($oCert)
If ($bSuccess = False) Then
    ConsoleWrite($oCrypt.LastErrorText & @CRLF)
    Exit
EndIf

; The CadesEnabled property applies to all methods that create PKCS7 signatures. 
; To create a CAdES-BES signature, set this property equal to true.
$oCrypt.CadesEnabled = True

$oCrypt.HashAlgorithm = "sha256"

$oSignedAttrs = ObjCreate("Chilkat.JsonObject")
$oSignedAttrs.UpdateInt("contentType",1)
$oSignedAttrs.UpdateInt("signingTime",1)
$oSignedAttrs.UpdateInt("messageDigest",1)
$oSignedAttrs.UpdateInt("signingCertificateV2",1)
$oCrypt.SigningAttributes = $oSignedAttrs.Emit()

; You can sign any type of file..
Local $sInputXmlPath = "qa_data/e-Invoice.xml"
Local $sOutputP7mPath = "qa_output/signed.p7m"

; Create the CAdES-BES attached signature, which contains the original data.
; Chilkat will build the .p7m locally, but will (internally) use ARSS
; to do the RSA signing remotely.
$bSuccess = $oCrypt.CreateP7M($sInputXmlPath,$sOutputP7mPath)
If ($bSuccess = False) Then
    ConsoleWrite($oCrypt.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("Success." & @CRLF)