(AutoIt) Send a Signed Email using RSASSA-PSS with SHA256

Demonstrates how to sign and send an email using the RSASSA-PSS signing algorithm with the SHA256 hash algorithm.

Note: This example requires Chilkat v9.5.0.67 or greater.

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.

; 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")
Local $bSuccess = $oPfx.LoadPfxFile("qa_data/rsassa-pss/privatekey.pfx","PFX_PASSWORD")
If ($bSuccess <> True) Then
    ConsoleWrite($oPfx.LastErrorText & @CRLF)
    Exit
EndIf

$oEmail = ObjCreate("Chilkat.Email")

; Create a simple email.
$oEmail.Subject = "Sample RSASSA-PSS Signed Email"
$oEmail.Body = "Sample RSASSA-PSS Signed Email"
$oEmail.From = "from_name@mydomain.com"
; Add one ore more recipients..
$oEmail.AddTo("Chilkat Support","support@chilkatsoft.com")
$oEmail.AddTo("Chilkat GMail","chilkat.support@gmail.com")

; Indicate that the email is to be signed, and that we want to use RSASSA-PSS.
$oEmail.SendSigned = True
$oEmail.SigningAlg = "pss"
$oEmail.SigningHashAlg = "sha256"

; 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.)
Local $oCert = $oPfx.GetCert(0)
If ($oPfx.LastMethodSuccess <> True) Then
    ConsoleWrite($oPfx.LastErrorText & @CRLF)
    Exit
EndIf

; Tell the email object to use this cert (and private key) for signing.
$oEmail.SetSigningCert($oCert)

$oMailman = ObjCreate("Chilkat.MailMan")

; Set the SMTP settings for your email account on your mail server.
$oMailman.SmtpUsername = "SMTP_LOGIN"
$oMailman.SmtpPassword = "SMTP_PASSWORD"
$oMailman.SmtpHost = "MY_SMTP_DOMAIN_OR_IP"
$oMailman.SmtpPort = 587
$oMailman.StartTLS = True

; Signed email can be sent in two different ways.  
; In a multipart/signed email, the signature is attached as a separate MIME part.
; In an opaque email (signedData) the content of the email is encapsulated within the signature
; and the email is sent as "application/pkcs7-mime". 
; Either should be fine, but some receiving systems might require one or the other..
$oMailman.OpaqueSigning = False

; Send the email.  The mailman will sign the email as directed by the 
; property settings of the email object.
$bSuccess = $oMailman.SendEmail($oEmail)
If ($bSuccess <> True) Then
    ConsoleWrite($oMailman.LastErrorText & @CRLF)
    Exit
EndIf

$bSuccess = $oMailman.CloseSmtpConnection()
If ($bSuccess <> True) Then
    ConsoleWrite("Connection to SMTP server not closed cleanly." & @CRLF)
EndIf

ConsoleWrite("Mail Sent!" & @CRLF)

; -----------------------------------------------------------
; This is the MIME of the RSASSA-PSS signed email that was sent

; 	MIME-Version: 1.0
; 	Date: Thu, 20 Apr 2017 10:14:58 -0500
; 	Message-ID: <3682A87344CB3A4FB5EB5BC9908C0C4DA01DA461@CHILKAT13>
; 	Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha256;
; 	 boundary="------------050103020705000601010800"
; 	X-Priority: 3 (Normal)
; 	Subject: Sample RSASSA-PSS Signed Email
; 	From: support@chilkatsoft.com
; 	To: "Chilkat Support" <support@chilkatsoft.com>,
; 	 "Chilkat GMail" <chilkat.support@gmail.com>
; 
; 	--------------050103020705000601010800
; 	Content-Type: text/plain; format=flowed
; 	Content-Transfer-Encoding: 7bit
; 
; 	Sample RSASSA-PSS Signed Email
; 	--------------050103020705000601010800
; 	Content-Transfer-Encoding: base64
; 	Content-Type: application/pkcs7-signature; name="smime.p7s"
; 	Content-Disposition: attachment; filename="smime.p7s"
; 
; 	MIIG5wYJKoZIhvcNAQcCoIIG2DCCBtQCAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg
; 	ggL4MIIC9DCCAl2gAwIBAgIJAMPsJCT11cniMA0GCSqGSIb3DQEBCwUAMIGSMQswCQYDVQQGEwJB
; 	VTERMA8GA1UECAwIVmljdG9yaWExEjAQBgNVBAcMCU1lbGJvdXJuZTEhMB8GA1UECgwYSW50ZXJu
; 	ZXQgV2lkZ2l0cyBQdHkgTHRkMQ8wDQYDVQQDDAZXaWRnZXQxKDAmBgkqhkiG9w0BCQEWGWFkbWlu
; 	QGludGVybmV0d2lkZ2V0cy5jb20wHhcNMTYxMTAxMTY1MjMyWhcNMjExMDMxMTY1MjMyWjCBkjEL
; 	MAkGA1UEBhMCQVUxETAPBgNVBAgMCFZpY3RvcmlhMRIwEAYDVQQHDAlNZWxib3VybmUxITAfBgNV
; 	BAoMGEludGVybmV0IFdpZGdpdHMgUHR5IEx0ZDEPMA0GA1UEAwwGV2lkZ2V0MSgwJgYJKoZIhvcN
; 	AQkBFhlhZG1pbkBpbnRlcm5ldHdpZGdldHMuY29tMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKB
; 	gQDGIdoCjyavs+F/Rm0VIB4m6O7VL1j+1IqieoR9NEX2GQvu2VCdceyxf9qaw1bxipEvjLwUkw7M
; 	e+BTlLpWQbBMH87s6KpsC8MVyXhMLpP0oM8NFix/vLz2wdLhUh7CZvJA0plqkJk9bj57QIu+EO1k
; 	tUHM2DFb6sckvCL2yybD1wIDAQABo1AwTjAdBgNVHQ4EFgQUONKKu2zsXIrinWxIGT654vrcQwsw
; 	HwYDVR0jBBgwFoAUONKKu2zsXIrinWxIGT654vrcQwswDAYDVR0TBAUwAwEB/zANBgkqhkiG9w0B
; 	AQsFAAOBgQArFvdi5u9i2QF1Qw+cdC1l7w2Y3+q6RIkln2W8rWJFje00644o8hXy7v46giJCedmF
; 	ULlhm1n7XIsZGy2W3lJ77v5agn9gFwXu1h3cqkGXkoteE6SQJQXWgsW3GWPveObvTL8LF4y57fgM
; 	9ZWS+V9MJajeu44Rf/tU17TLYKjvEjGCA7MwggOvAgEBMIGgMIGSMQswCQYDVQQGEwJBVTERMA8G
; 	A1UECAwIVmljdG9yaWExEjAQBgNVBAcMCU1lbGJvdXJuZTEhMB8GA1UECgwYSW50ZXJuZXQgV2lk
; 	Z2l0cyBQdHkgTHRkMQ8wDQYDVQQDDAZXaWRnZXQxKDAmBgkqhkiG9w0BCQEWGWFkbWluQGludGVy
; 	bmV0d2lkZ2V0cy5jb20CCQDD7CQk9dXJ4jANBglghkgBZQMEAgEFAKCCAjQwGAYJKoZIhvcNAQkD
; 	MQsGCSqGSIb3DQEHATAcBgkqhkiG9w0BCQUxDxcNMTcwNDIwMTUxNDU4WjAvBgkqhkiG9w0BCQQx
; 	IgQgoHOtpFiAgti0cwDw46C8wyYSZbhx2yJqJZ/qRE8WPSQwXwYJKoZIhvcNAQkPMVIwUDALBglg
; 	hkgBZQMEAQIwCgYIKoZIhvcNAwcwDgYIKoZIhvcNAwICAgCAMA0GCCqGSIb3DQMCAgFAMAcGBSsO
; 	AwIHMA0GCCqGSIb3DQMCAgEoMIGxBgkrBgEEAYI3EAQxgaMwgaAwgZIxCzAJBgNVBAYTAkFVMREw
; 	DwYDVQQIDAhWaWN0b3JpYTESMBAGA1UEBwwJTWVsYm91cm5lMSEwHwYDVQQKDBhJbnRlcm5ldCBX
; 	aWRnaXRzIFB0eSBMdGQxDzANBgNVBAMMBldpZGdldDEoMCYGCSqGSIb3DQEJARYZYWRtaW5AaW50
; 	ZXJuZXR3aWRnZXRzLmNvbQIJAMPsJCT11cniMIGzBgsqhkiG9w0BCRACCzGBo6CBoDCBkjELMAkG
; 	A1UEBhMCQVUxETAPBgNVBAgMCFZpY3RvcmlhMRIwEAYDVQQHDAlNZWxib3VybmUxITAfBgNVBAoM
; 	GEludGVybmV0IFdpZGdpdHMgUHR5IEx0ZDEPMA0GA1UEAwwGV2lkZ2V0MSgwJgYJKoZIhvcNAQkB
; 	FhlhZG1pbkBpbnRlcm5ldHdpZGdldHMuY29tAgkAw+wkJPXVyeIwPQYJKoZIhvcNAQEKMDCgDTAL
; 	BglghkgBZQMEAgGhGjAYBgkqhkiG9w0BAQgwCwYJYIZIAWUDBAIBogMCASAEgYCDQpT6vJZ9zERJ
; 	JVX69PGUfCN5Eq9pKzoOTQSrIBe1YgNDSPd5pyOPP2MN1RpI0T/GTQZw4iWy5LZq0T5sjmk3fFVB
; 	+VZjKtkTuhGaCdzMQXomVLBbI2fN4UaA4v1/Ayrqr8SY9Rsa20TpKv/bufK7oYs083UOtlcA1EHY
; 	41wQ5A==
; 
; 	--------------050103020705000601010800--