AutoIt Requires Chilkat v11.0.0+
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Sign MIME using RSASSA-PSS with SHA256
See more MIME Examples
Demonstrates how to sign an MIME using the RSASSA-PSS signing algorithm with the SHA256 hash algorithm.Chilkat AutoIt Downloads
Local $bSuccess = False
; This requires the Chilkat API to have been previously unlocked.
; See Global Unlock Sample for sample code.
$oMime = ObjCreate("Chilkat.Mime")
; Create a MIME message to sign.
$oMime.NewMultipartMixed()
$oMime.AddHeaderField("someHeader1","Some value 1")
$oMime.AddHeaderField("someHeader2","Some value 2")
$oPart0 = ObjCreate("Chilkat.Mime")
$oPart0.AddHeaderField("hdrA","Some value A")
$oPart0.AddHeaderField("hdrB","Some value B")
$oPart0.ContentType = "text/plain"
$oPart0.SetBody "This is the plain-text body."
$oPart1 = ObjCreate("Chilkat.Mime")
$oPart1.AddHeaderField("hdrX","Some value X")
$oPart1.AddHeaderField("hdrY","Some value Y")
$oPart1.ContentType = "text/xml"
$oPart1.SetBody "<a>This is the XML body</a>"
$oMime.AppendPart($oPart0)
$oMime.AppendPart($oPart1)
; The MIME to be signed:
$oSbUnsignedMime = ObjCreate("Chilkat.StringBuilder")
$oMime.GetMimeSb($oSbUnsignedMime)
ConsoleWrite($oSbUnsignedMime.GetAsString() & @CRLF)
; Content-Type: multipart/mixed; boundary="------------080303020600020604010008"
; someHeader1: Some value 1
; someHeader2: Some value 2
;
; --------------080303020600020604010008
; hdrA: Some value A
; hdrB: Some value B
; Content-Type: text/plain
;
; This is the plain-text body.
; --------------080303020600020604010008
; hdrX: Some value X
; hdrY: Some value Y
; Content-Type: text/xml
;
; <a>This is the XML body</a>
; --------------080303020600020604010008--
;
; Get a digital certificate with private key from a .pfx
; (Chilkat has many different ways to provide a cert + private key for siging.
; Using a PFX is just one possible option.)
$oPfx = ObjCreate("Chilkat.Pfx")
$bSuccess = $oPfx.LoadPfxFile("qa_data/rsassa-pss/privatekey.pfx","PFX_PASSWORD")
If ($bSuccess = False) Then
ConsoleWrite($oPfx.LastErrorText & @CRLF)
Exit
EndIf
; Get the certificate to be used for signing.
; (The typical case for a PFX is that it contains a cert with an associated private key,
; as well as other certificates in the chain of authentication. The cert with the private
; key should be in the first position at index 0.)
$oCert = ObjCreate("Chilkat.Cert")
$bSuccess = $oPfx.CertAt(0,$oCert)
If ($bSuccess = False) Then
ConsoleWrite($oPfx.LastErrorText & @CRLF)
Exit
EndIf
; Indicate that RSASSA-PSS with SHA256 should be used.
$oMime.SigningAlg = "pss"
$oMime.SigningHashAlg = "sha256"
; Add a detached signature.
$bSuccess = $oMime.AddDetachedSignature($oCert)
If ($bSuccess <> True) Then
ConsoleWrite($oMime.LastErrorText & @CRLF)
Exit
EndIf
; Show the clear-signed MIME. (see the sample output below)
ConsoleWrite("-------------------------------------------------------------" & @CRLF)
ConsoleWrite("Clear-signed MIME using detached signature:" & @CRLF)
ConsoleWrite("-------------------------------------------------------------" & @CRLF)
ConsoleWrite($oMime.GetMime() & @CRLF)
; Restore the original unsigned MIME, and this time create an opaque signature.
$oMime.LoadMime($oSbUnsignedMime.GetAsString())
; Sign using an opaque signature
$bSuccess = $oMime.ConvertToSigned($oCert)
If ($bSuccess <> True) Then
ConsoleWrite($oMime.LastErrorText & @CRLF)
Exit
EndIf
; Show the opaque-signed MIME. (see the sample output below)
ConsoleWrite("-------------------------------------------------------------" & @CRLF)
ConsoleWrite("Opaque-signed MIME :" & @CRLF)
ConsoleWrite("-------------------------------------------------------------" & @CRLF)
ConsoleWrite($oMime.GetMime() & @CRLF)
ConsoleWrite("Success." & @CRLF)
; -----------------------------------------------
; This is sample output for the clear-signed MIME:
; -----------------------------------------------
;
; Content-Type: multipart/signed; boundary="----=_NextPart_672_c95a_97b64c9a.90b5204d";
; protocol="application/x-pkcs7-signature";
; micalg=sha256
;
; ------=_NextPart_672_c95a_97b64c9a.90b5204d
; Content-Type: multipart/mixed; boundary="------------030207090102000301050504"
; someHeader1: Some value 1
; someHeader2: Some value 2
;
; --------------030207090102000301050504
; hdrA: Some value A
; hdrB: Some value B
; Content-Type: text/plain
;
; This is the plain-text body.
; --------------030207090102000301050504
; hdrX: Some value X
; hdrY: Some value Y
; Content-Type: text/xml
;
; <a>This is the XML body</a>
; --------------030207090102000301050504--
;
; ------=_NextPart_672_c95a_97b64c9a.90b5204d
; Content-Transfer-Encoding: base64
; Content-Type: application/x-pkcs7-signature; name="smime.p7s"
; Content-Disposition: attachment; filename="smime.p7s"
;
; MIIG5wYJKoZIhvcNAQcCoIIG2DCCBtQCAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg
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; neC8qw==
;
; ------=_NextPart_672_c95a_97b64c9a.90b5204d--
;
; -----------------------------------------------
; This is sample output for the opaque-signed MIME:
; -----------------------------------------------
; Content-Type: application/x-pkcs7-mime; name="smime.p7m"; smime-type="signed-data"
; someHeader1: Some value 1
; someHeader2: Some value 2
; Content-Disposition: attachment; filename="smime.p7m"
; Content-Transfer-Encoding: base64
;
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;