Rust

PKCS11 Find All Certificates on Smart Card or USB Token

See more PKCS11 Examples

Sample code showing how to examine all the certificates on a smart card or USB token.

Note: This example requires Chilkat v9.5.0.88 or later.

Rust

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

// Note: Chilkat's PKCS11 implementation runs on Windows, Linux, Mac OS X, and other supported operating systems.

let pkcs11 = chilkat::Pkcs11::new();

// Set your shared lib path -- either a full path to the DLL, .so, or .dylib,
// or just the filename if the driver is in a location that can be automatically found. (Such as in C:\Windows\System32)
pkcs11.set_shared_lib_path("aetpkss1.dll");

if pkcs11.initialize().is_err() {
    println!("{}", pkcs11.last_error_text());
    return;
}

// Pass -1 for the slotID to open a session on the first non-empty slot.
let slot_id = -1;

// Open a session.
let read_write = true;
if pkcs11.open_session(slot_id, read_write).is_err() {
    println!("{}", pkcs11.last_error_text());
    return;
}

// Make it an authenticated session by calling Login.
// 
// If we don't authenticate, then we won't be able to see the private keys, and thus
// we won't know which certificates have an associated private key stored on the smart card.

// The smart card PIN is passed to the Login method.
// userType 1 indicates a "Normal User".
let user_type = 1;
let pin = "0000".to_string();
if pkcs11.login(user_type, &pin).is_err() {
    println!("{}", pkcs11.last_error_text());
    let _ = pkcs11.close_session().is_ok();
    return;
}

// Call FindAllCerts to find all certificates on the smart card or USB token.
if pkcs11.find_all_certs().is_err() {
    println!("{}", pkcs11.last_error_text());
    let _ = pkcs11.close_session().is_ok();
    return;
}

// The NumCerts property is set by FindAllCerts.
let num_certs = pkcs11.num_certs();
println!("Number of certs: {}", num_certs);

let mut private_key_note = String::new();
let cert = chilkat::Cert::new();
let mut i = 0;
while i < num_certs {
    let _ = pkcs11.get_cert(i, &cert);
    private_key_note = String::new();
    if cert.has_private_key() {
        private_key_note = "(has private key)".to_string();
    }

    println!("{}: {} {}", i, private_key_note, cert.subject_dn());
    println!("{}: issuer: {}", i, cert.issuer_dn());
    println!("----");
    i = i + 1;
}

// Revert to an unauthenticated session by calling Logout.
if pkcs11.logout().is_err() {
    println!("{}", pkcs11.last_error_text());
    let _ = pkcs11.close_session().is_ok();
    return;
}

// When finished, close the session.
// It is important to close the session (memory leaks will occur if the session is not properly closed).
if pkcs11.close_session().is_err() {
    println!("{}", pkcs11.last_error_text());
    return;
}

println!("Success.");