Java

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.

Chilkat2 Java

import com.chilkatsoft.chilkat2.Cert;
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Pkcs11;

public class ChilkatExample {

    public static void main(String[] args) {
        // 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.

        Pkcs11 pkcs11 = new Pkcs11();

        // 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.setSharedLibPath("aetpkss1.dll");

        try {
            pkcs11.initialize();
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

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

        // Open a session.
        boolean readWrite = true;
        try {
            pkcs11.openSession(slotID, readWrite);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            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".
        int userType = 1;
        String pin = "0000";
        try {
            pkcs11.login(userType, pin);

            // Call FindAllCerts to find all certificates on the smart card or USB token.
            pkcs11.findAllCerts();
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            pkcs11.closeSession();
            return;
        }

        // The NumCerts property is set by FindAllCerts.
        int numCerts = pkcs11.getNumCerts();
        System.out.println("Number of certs: " + numCerts);

        String privateKeyNote = "";
        Cert cert = new Cert();
        int i = 0;
        while (i < numCerts) {
            pkcs11.getCert(i, cert);
            privateKeyNote = "";
            if (cert.hasPrivateKey()) {
                privateKeyNote = "(has private key)";
            }

            System.out.println(i + ": " + privateKeyNote + " " + cert.getSubjectDN());
            System.out.println(i + ": issuer: " + cert.getIssuerDN());
            System.out.println("----");
            i = i + 1;
        }

        // Revert to an unauthenticated session by calling Logout.
        try {
            pkcs11.logout();
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            pkcs11.closeSession();
            return;
        }

        // When finished, close the session.
        // It is important to close the session (memory leaks will occur if the session is not properly closed).
        try {
            pkcs11.closeSession();
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("Success.");
    }
}