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C#

Set an IMAP TLS Client Certificate from PEM

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Demonstrates the Chilkat Imap.SetSslClientCertPem method, which supplies a TLS client certificate and private key from PEM. The first argument may be the PEM text itself or a path to a PEM file (Chilkat detects which), and the second is the password used when the private key is encrypted. Call it before connecting.

Note: The certificate path is relative to the application's current working directory. Supply the path to your own certificate file.

Background: PEM is the Base64 text format (delimited by -----BEGIN----- lines) commonly produced by OpenSSL and used across Unix tooling. This method is the convenient choice when your client certificate and key already live in a .pem file; use SetSslClientCertPfx for a PKCS #12 .pfx/.p12 bundle instead.

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C#
bool success = false;

//  Demonstrates the Imap.SetSslClientCertPem method, which supplies a TLS client certificate
//  and private key from PEM.  The 1st argument is the PEM text or a PEM file path, and the 2nd
//  is the password when the private key is encrypted.  It must be called before connecting.

Chilkat.Imap imap = new Chilkat.Imap();

imap.Ssl = true;
imap.Port = 993;

//  The PEM private-key password is not hard-coded in source.  Insert code here to obtain it from an
//  interactive prompt, environment variable, or a secrets vault.
string pemPassword;

//  Provide the PEM client certificate BEFORE connecting.  The first argument may be a PEM file
//  path or the PEM text itself.
success = imap.SetSslClientCertPem("qa_data/client.pem",pemPassword);
if (success == false) {
    Debug.WriteLine(imap.LastErrorText);
    return;
}

success = imap.Connect("imap.example.com");
if (success == false) {
    Debug.WriteLine(imap.LastErrorText);
    return;
}

success = imap.Login("user@example.com","myPassword");
if (success == false) {
    Debug.WriteLine(imap.LastErrorText);
    return;
}

success = imap.Disconnect();
if (success == false) {
    Debug.WriteLine(imap.LastErrorText);
    return;
}