IssueTOTPBlob2.java

Example of generating, verifying and re-synchronizing a TOTP blob OATH using the HSM. With seed generated outside the HSM.

See Note on examples.

package doxy.examples;
 
import com.dinamonetworks.Dinamo;
import br.com.trueaccess.TacException;
import br.com.trueaccess.TacNDJavaLib;
 
public class IssueTOTPBlob2 {
    private static String strAddr   = "127.0.0.1";
    private static String strUsrId  = "master";
    private static String strPwd    = "12345678";
    private static String masterKeyName   = "master_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 master key");
        api.createKey(masterKeyName, TacNDJavaLib.ALG_AES_256, TacNDJavaLib.NONEXPORTABLE_KEY);
 
        byte[] totpSeed = { (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01,
                (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01,
                (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01,
                (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x01};
 
        byte[] totpImpBlob = api.importOATHTotpBlob(masterKeyName,
                                                totpSeed);
 
        //This call simulates the client application
        String nextOtp = api.getNextOATHOTP(masterKeyName,
                                            TacNDJavaLib.ISSUE_OATH_MIN_OTP_LEN,
                                            totpImpBlob);
 
        System.out.println("--> check OTP value for know seed and sequence");
        totpImpBlob = api.checkOATHBlobOTP(masterKeyName, nextOtp, totpImpBlob);
 
        System.out.println("--> Delete the master key");
        api.deleteKey(masterKeyName);
 
        api.closeSession();
 
        System.out.println("The process ended sucessfully");
 
    }
}