(Excel) Encrypt MIME using PEM Certificate

Encrypt MIME using a PEM certificate.

Download Excel Class Modules Chilkat Excel Class Modules

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

Dim mime As Chilkat.Mime
Set mime = Chilkat.NewMime

' Create a simple MIME message to be encrypted:

success = mime.AddHeaderField("Content-Type","text/plain")
success = mime.AddHeaderField("abc","123")
mime.SetBody "This is a test"

Dim cert As Chilkat.Cert
Set cert = Chilkat.NewCert
success = cert.LoadFromFile("qa_data/pem/mf_public_rsa.pem")
If (success = False) Then
    Debug.Print cert.LastErrorText
    Exit Sub
End If

' Encrypt the MIME.
success = mime.Encrypt(cert)
If (success = False) Then
    Debug.Print mime.LastErrorText
    Exit Sub
End If

' Display the MIME:
Debug.Print mime.GetMime()

' The resulting S/MIME looks like this:

' Content-Type: application/x-pkcs7-mime; name="smime.p7m"; smime-type="enveloped-data"
' abc: 123
' Content-Disposition: attachment; filename="smime.p7m"
' Content-Transfer-Encoding: base64
' 
' MIICMAYJKoZIhvcNAQcDoIICITCCAh0CAQAxggGoMIIBpAIBADCBizB3MQswCQYDVQQGEwJQTDEi
' MCAGA1UEChMZVW5pemV0byBUZWNobm9sb2dpZXMgUy5BLjEnMCUGA1UECxMeQ2VydHVtIENlcnRp
' ZmljYXRpb24gQXV0aG9yaXR5MRswGQYDVQQDExJDZXJ0dW0gTGV2ZWwgSVYgQ0ECEDVuXbie8bb5
' sHeajm5k3ZYwDQYJKoZIhvcNAQEBBQAEggEADNac7gEUOvTWfyqwe0cS+m65Lte7ZmDGRElvqeo7
' C2+JZJfuxl2Roy+4vTovnn+9U2Yf5Kqc1m2ZPCE5Q8ExvOV4M0cTocLNLK6sfCR7cvo1xgf220qf
' XYqWF1/ePuP9j1FrkFvBOoS4BREAnXsEa4zvuhvNPsMfjInK8wWnMftbLUiriAZBq391D+dxxX8M
' kB1EHCWaS3H8WQI/caTnkRS6YdOCOrctJHtotkcU+4gcIxfTcq6yeloceURbesAYAvdRbIGszKCQ
' FA2sC1x8SkDQCHfNUvmyS/fmkq5waFpmq1ksOspInb4ZM7SOjEUu+22vkAgbTmOS3MUdieuRcTBs
' BgkqhkiG9w0BBwEwHQYJYIZIAWUDBAECBBClRoHLQZyzdHwoZA6pZjLYgEChuMzbQRXOjNF3RpnI
' ZjNTKFDuhaUqk0rRTTn3D89F7ZMUBtoCP0bw+bH5UE9zpDaAgCF9s3W3/D5YNgAuw4AZ