GenerateMAC.java

Example of MAC generation.

See Note on examples.

package doxy.examples;
 
import com.dinamonetworks.Dinamo;
 
import br.com.trueaccess.TacException;
import br.com.trueaccess.TacNDJavaLib;
 
public class GenerateMAC {
    private static String strAddr   = "127.0.0.1";
    private static String strUsrId  = "master";
    private static String strPwd    = "12345678";
    private static String hmacKeyName   = "hmac_key";
 
 public static void main(String[] args) throws TacException {
 
        Dinamo api = new Dinamo();
 
        System.out.println("--> Login HSM");
        api.openSession(strAddr, strUsrId, strPwd);
 
        System.out.println("--> Create a HMAC key");
        api.createKey(hmacKeyName, TacNDJavaLib.ALG_HMAC_SHA2_256, true);
 
       byte message1[] =
       {
           (byte)0x31, (byte)0x32, (byte)0x33, (byte)0x34, (byte)0x35, (byte)0x36, (byte)0x37, (byte)0x38,
           (byte)0x31, (byte)0x32, (byte)0x33, (byte)0x34, (byte)0x35, (byte)0x36, (byte)0x37, (byte)0x38
       } ;
 
 
        byte message2[] =
        {
          (byte)0x31, (byte)0x31, (byte)0x31, (byte)0x31, (byte)0x31, (byte)0x31, (byte)0x31, (byte)0x31,
          (byte)0x32, (byte)0x32, (byte)0x32, (byte)0x32, (byte)0x32, (byte)0x32, (byte)0x32, (byte)0x32,
        } ;
 
 
        System.out.println("--> Generate HMAC in one operation");
        byte[] mac = api.generateMAC(TacNDJavaLib.ALG_HMAC_SHA2_256,
                                    hmacKeyName,
                                    message1);
 
 
        System.out.println("--> Initialize a HMAC multiple parts operation");
        api.initMAC(TacNDJavaLib.ALG_HMAC_SHA2_256,
                    hmacKeyName);
 
        System.out.println("--> Update part 1");
        api.updateMAC(message1);
 
        System.out.println("--> Update part 2");
        api.updateMAC(message2);
 
        System.out.println("--> End multiple parts MAC operation");
        mac = api.endMAC();
 
        System.out.println("--> Delete HMAC key");
        api.deleteKey(hmacKeyName);
 
        api.closeSession();
 
        System.out.println("The process ended sucessfully");
    }
}