Java

ScMinidriver - Change Smart Card PIN (or USB token PIN)

See more ScMinidriver Examples

Demonstrates how to change the PIN for a smart card or USB token. Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.ScMinidriver;

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.

        ScMinidriver scmd = new ScMinidriver();

        // Reader names (smart card readers or USB tokens) can be discovered
        // via List Readers or Find Smart Cards
        String readerName = "Alcor Micro USB Smart Card Reader 0";
        try {
            scmd.acquireContext(readerName);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // If successful, the name of the currently inserted smart card is available:
        System.out.println("Card name: " + scmd.getCardName());

        // Change the "user" PIN.  (Typically, you'll always be using the "user" PIN.)
        String currentPin = "0000";
        String newPin = "1234";
        int retval = scmd.pinChange("user", currentPin, newPin);
        if (retval == -1) {
            System.out.println("The PIN is already blocked.");
            return;
        }

        if (retval == -2) {
            System.out.println("The PinChange function failed for some unanticipated reason");
            System.out.println(scmd.getLastErrorText());
            return;
        }

        if (retval == 0) {
            System.out.println("PIN successfully changed.");
        } else {
            System.out.println("Current PIN is incorrect.");
            System.out.println("Number of attempts remaining = " + retval);
        }

        scmd.deleteContext();
    }
}