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C#

Clear the S/MIME Recipient Certificate List

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Demonstrates ClearEncryptCerts, which empties the recipient-certificate list previously populated by AddEncryptCert. This is useful to start over with a different set of recipients before calling EncryptN.

Background. The recipient list is internal state that accumulates across AddEncryptCert calls. ClearEncryptCerts resets it so a subsequent EncryptN encrypts only for the certificates added afterward.

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C#
bool success = false;

Chilkat.Mime mime = new Chilkat.Mime();
success = mime.SetBodyFromPlainText("This message will be encrypted.");
if (success == false) {
    Debug.WriteLine(mime.LastErrorText);
    return;
}

//  Add a recipient certificate.
Chilkat.Cert cert = new Chilkat.Cert();
success = cert.LoadFromFile("qa_data/recipient.cer");
if (success == false) {
    Debug.WriteLine(cert.LastErrorText);
    return;
}

success = mime.AddEncryptCert(cert);
if (success == false) {
    Debug.WriteLine(mime.LastErrorText);
    return;
}

//  ClearEncryptCerts empties the recipient-certificate list, for example to start over with a
//  different set of recipients before calling EncryptN.  It is a void method.
mime.ClearEncryptCerts();

Debug.WriteLine("Recipient certificate list cleared.");