(C#) ScMinidriver - Import a Certificate and Private Key to a Smart Card or USB Token

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Demonstrates how to import a certificate and its private key to a key container on a smart card or USB token.

Note: This functionality was introduced in Chilkat v9.5.0.87.

Note: The ScMinidriver functionality is for Windows-only because ScMinidriver DLLs only exist on Windows.

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

Chilkat.ScMinidriver scmd = new Chilkat.ScMinidriver();

// Reader names (smart card readers or USB tokens) can be discovered
// via List Readers or Find Smart Cards
string readerName = "SCM Microsystems Inc. SCR33x USB Smart Card Reader 0";
bool success = scmd.AcquireContext(readerName);
if (success == false) {
    Debug.WriteLine(scmd.LastErrorText);
    return;
}

// If successful, the name of the currently inserted smart card is available:
Debug.WriteLine("Card name: " + scmd.CardName);

// To import a cert + private key, we'll need to be PIN authenticated.
// For more details about smart card PIN authentication, see the Smart Card PIN Authentication Example
string pinId = "user";
int retval = scmd.PinAuthenticate(pinId,"000000");
if (retval != 0) {
    Debug.WriteLine("PIN Authentication failed.");
    scmd.DeleteContext();
    return;
}

Chilkat.Cert cert = new Chilkat.Cert();

// Load the cert + private key from a .p12/.pfx
// We got this .p12 from https://badssl.com/download/
string password = "badssl.com";
success = cert.LoadPfxFile("qa_data/pfx/badssl.com-client.p12",password);
if (success == false) {
    Debug.WriteLine(cert.LastErrorText);
    scmd.DeleteContext();
    return;
}

// Let's import this certificate as the "signature" key/cert in key container #6.
int containerIndex = 6;
string keySpec = "sig";
success = scmd.ImportCert(cert,containerIndex,keySpec,pinId);
if (success == false) {
    Debug.WriteLine(scmd.LastErrorText);
}
else {
    Debug.WriteLine("Successfully imported the cert + private key onto the smart card.");
}

// When finished with operations that required authentication, you may if you wish, deauthenticate the session.
success = scmd.PinDeauthenticate("user");
if (success == false) {
    Debug.WriteLine(scmd.LastErrorText);
}

// Delete the context when finished with the card.
success = scmd.DeleteContext();
if (success == false) {
    Debug.WriteLine(scmd.LastErrorText);
}