Rust

ScMinidriver - Delete Smart Card Key Container

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Demonstrates how to delete the contents of a key container on a smart card (or USB token). Rust

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

// Chilkat recommends the following free tool for interactively examining the contents of your smart card
// through the ScMinidriver interface:  MGTEK Tool for Minidriver enabled Smart Cards

// Let's first look at our smart card..
// Here's the view of the card we happen to be using: a Gemalto (Thales) IDPrime MD T=0 smart card.

// (image:https://example-code.com/images/gemalto_idprime_after_key_import.JPG/endImage)

let scmd = chilkat::ScMinidriver::new();

// First we need to acquire a context to the smart card in the reader where it is inserted.
// Reader names (smart card readers or USB tokens) can be discovered
// via List Readers or Find Smart Cards
let reader_name = "Alcor Micro USB Smart Card Reader 0".to_string();
if scmd.acquire_context(&reader_name).is_err() {
    println!("{}", scmd.last_error_text());
    return;
}

// If successful, the name of the currently inserted smart card is available:
println!("Card name: {}", scmd.card_name());

// To delete the contents of a key container, we'll need to be PIN authenticated..

// For more details about smart card PIN authentication, see the Smart Card PIN Authentication Example
let pin_id = "user".to_string();
let retval = scmd.pin_authenticate(&pin_id, "0000");
if retval != 0 {
    println!("PIN Authentication failed.");
    let _ = scmd.delete_context();
    return;
}

// Let's delete the contents of key container #7
// This deletes both keys (signature key and "key exchange" key) that might be present in the key container.
// (It is not possible to delete just one or the other.)
if scmd.delete_key_container(7).is_err() {
    println!("{}", scmd.last_error_text());
    let _ = scmd.delete_context();
    return;
}

let _ = scmd.delete_context();
println!("Successfully delete the contents of key container #7");