Java

ScMinidriver - Load Certificate from Smart Card or USB Token by Index

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Demonstrates how to load a certificate located on a smart card or USB token by key container index. Chilkat2 Java

import com.chilkatsoft.chilkat2.Cert;
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 = "SCM Microsystems Inc. SCR33x 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());

        // If desired, perform regular PIN authentication with the smartcard.
        // For more details about smart card PIN authentication, see the Smart Card PIN Authentication Example
        int retval = scmd.pinAuthenticate("user", "000000");
        if (retval != 0) {
            System.out.println("PIN Authentication failed.");
        }

        Cert cert = new Cert();
        // We can pass a specific key container index, or -1 to locate the 1st non-empty container containing a certificate and private key.
        int keyContainerIndex = -1;
        // keySpec can be "kex" or "sig" to indicate the key-exchange or signature position within the container.
        // keySpec can also be "any" to accept either position, with preference given to the "sig" position if both are occupied.
        String keySpec = "any";
        try {
            scmd.getCert(keyContainerIndex, keySpec, cert);
            System.out.println("Successfully loaded the cert object from the smart card / USB token.");

            // Note: When successful, the cert object is internally linked to the ScMinidriver object's authenticated session.
            // The cert object can now be used to sign or do other cryptographic operations that occur on the smart card / USB token.
            // If your application calls PinDeauthenticate or DeleteContext, the cert will no longer be able to sign on the smart card
            // because the smart card ScMinidriver session will no longer be authenticated or deleted.
        } catch (ChilkatException e) {
            System.out.println("Failed to load the certificate.");
        }

        // ...
        // ...
        // ...

        // When finished with operations that required authentication, you may if you wish, deauthenticate the session.
        try {
            scmd.pinDeauthenticate("user");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
        }

        // Delete the context when finished with the card.
        try {
            scmd.deleteContext();
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
        }
    }
}