Java

PKCS11 Find Private Key by Label

See more PKCS11 Examples

Demonstrates how to find a private key based on a user-specified label.

Note: This example requires Chilkat v9.5.0.96 or later.

Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    //  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.

    CkPkcs11 pkcs11 = new CkPkcs11();

    //  Use the PKCS11 driver (.dll, .so, .dylib) for your particular HSM.
    //  For example:
    pkcs11.put_SharedLibPath("C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS11.dll");

    //  Use your HSM's PIN.
    String pin = "0000";

    //  Normal user = 1
    int userType = 1;

    //  Establish a logged-on user session with the HSM.
    success = pkcs11.QuickSession(userType,pin);
    if (success == false) {
        System.out.println(pkcs11.lastErrorText());
        return;
        }

    //  Provide a template to find a PKCS11 object.
    CkJsonObject jsonTemplate = new CkJsonObject();

    //  Find an RSA private key with the label "MySshKey".
    //  Here's an example of how the key was originally imported: 
    //  PKCS11 Import SSH Key
    jsonTemplate.UpdateString("class","private_key");
    jsonTemplate.UpdateString("key_type","rsa");
    jsonTemplate.UpdateString("label","MySshKey");

    int privKeyHandle = pkcs11.FindObject(jsonTemplate);
    if (privKeyHandle == 0) {
        System.out.println(pkcs11.lastErrorText());
        return;
        }

    //  The private key handle is only valid during the PKCS11 session.
    //  If you wish to use the private key in another PKCS11 session,
    //  you'll first need to find it.  See:  
    System.out.println("private key handle: " + privKeyHandle);

    //  Do whatever you wish with the private key handle...
    //  ...
    //  ...

    pkcs11.Logout();
    pkcs11.CloseSession();
  }
}