Decrypt MIME with PFX

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Demonstrates how to decrypt MIME using a PFX (containing a digital certificate with private key). The content-type of an encrypted MIME message looks like this:

Content-Type: application/x-pkcs7-mime;
	name="smime.p7m"

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
set mime = Server.CreateObject("Chilkat_9_5_0.Mime")

success = mime.UnlockComponent("Anything for 30-day trial")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode("Failed to unlock component") & "</pre>"

End If

success = mime.LoadMimeFile("encryptedEmail.eml")
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( mime.LastErrorText) & "</pre>"

End If

set certStore = Server.CreateObject("Chilkat_9_5_0.CertStore")
success = certStore.LoadPfxFile("myPfx.pfx","myPfxPassword")
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( certStore.LastErrorText) & "</pre>"

End If

'  Find the certificate by email address.  There are many
'  ways to find certificates within a Chilkat certificate store
'  object...

' cert is a Chilkat_9_5_0.Cert
Set cert = certStore.FindCertBySubjectE("support@chilkatsoft.com")
If (cert Is Nothing ) Then
    Response.Write "<pre>" & Server.HTMLEncode( certStore.LastErrorText) & "</pre>"

End If

' privKey is a Chilkat_9_5_0.PrivateKey
Set privKey = cert.ExportPrivateKey()
If (privKey Is Nothing ) Then
    Response.Write "<pre>" & Server.HTMLEncode( cert.LastErrorText) & "</pre>"

End If

success = mime.Decrypt2(cert,privKey)
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( mime.LastErrorText) & "</pre>"

End If

'  Show the decrypted MIME:
Response.Write "<pre>" & Server.HTMLEncode( mime.GetMime()) & "</pre>"


%>
</body>
</html>