Add a Recipient Certificate for S/MIME Encryption

See more MIME Examples

Demonstrates AddEncryptCert, which adds one recipient certificate to the list used by EncryptN. Call it once for each intended recipient, then call EncryptN to encrypt for all of them.

The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Dim success As Boolean = False

Dim mime As New Chilkat.Mime
success = mime.SetBodyFromPlainText("This message will be encrypted.")
If (success = False) Then
    Debug.WriteLine(mime.LastErrorText)
    Exit Sub
End If


'  AddEncryptCert adds one recipient certificate to the list used by EncryptN.  Call it once per
'  recipient.
Dim cert As New Chilkat.Cert
success = cert.LoadFromFile("qa_data/recipient.cer")
If (success = False) Then
    Debug.WriteLine(cert.LastErrorText)
    Exit Sub
End If


success = mime.AddEncryptCert(cert)
If (success = False) Then
    Debug.WriteLine(mime.LastErrorText)
    Exit Sub
End If


'  EncryptN then encrypts for all certificates added.
success = mime.EncryptN()
If (success = False) Then
    Debug.WriteLine(mime.LastErrorText)
    Exit Sub
End If

Debug.WriteLine("Encrypted for the added recipient(s).")