/*
 * Copyright 2008 Federal Chancellery Austria and
 * Graz University of Technology
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package at.gv.egiz.smcc;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import javax.smartcardio.ATR;
import javax.smartcardio.Card;
import javax.smartcardio.CardTerminal;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * A factory for creating {@link SignatureCard}s from {@link Card}s.
 */
public class SignatureCardFactory {

	public static boolean ENFORCE_RECOMMENDED_PIN_LENGTH = false;

	/**
	 * This class represents a supported smart card.
	 */
	private class SupportedCard {

		/**
		 * The ATR pattern.
		 */
		private byte[] atrPattern;

		/**
		 * The ATR mask.
		 */
		private byte[] atrMask;

		/**
		 * The implementation class.
		 */
		private String impl;

		/**
		 * Creates a new SupportedCard instance with the given ATR pattern and
		 * mask und the corresponding implementation class.
		 * 
		 * @param atrPattern
		 *            the ATR pattern
		 * @param atrMask
		 *            the ATR mask
		 * @param implementationClass
		 *            the name of the implementation class
		 * 
		 * @throws NullPointerException
		 *             if <code>atrPattern</code> or <code>atrMask</code> is
		 *             <code>null</code>.
		 * @throws IllegalArgumentException
		 *             if the lengths of <code>atrPattern</code> and
		 *             <code>atrMask</code> of not equal.
		 */
		public SupportedCard(byte[] atrPattern, byte[] atrMask,
				String implementationClass) {
			if (atrPattern.length != atrMask.length) {
				throw new IllegalArgumentException(
						"Length of 'atr' and 'mask' must be equal.");
			}
			this.atrPattern = atrPattern;
			this.atrMask = atrMask;
			this.impl = implementationClass;
		}

		/**
		 * Returns true if the given ATR matches the ATR pattern and mask this
		 * SupportedCard object.
		 * 
		 * @param atr
		 *            the ATR
		 * 
		 * @return <code>true</code> if the given ATR matches the ATR pattern
		 *         and mask of this SupportedCard object, or <code>false</code>
		 *         otherwise.
		 */
		public boolean matches(ATR atr) {

			byte[] bytes = atr.getBytes();
			if (bytes == null) {
				return false;
			}
			if (bytes.length < atrMask.length) {
				// we cannot test for equal length here, as we get ATRs with
				// additional bytes on systems using PCSClite (e.g. linux and OS
				// X) sometimes
				return false;
			}

			int l = Math.min(atrMask.length, bytes.length);
			for (int i = 0; i < l; i++) {
				if ((bytes[i] & atrMask[i]) != atrPattern[i]) {
					return false;
				}
			}
			return true;

		}

		/**
		 * @return the corresponding implementation class.
		 */
		public String getImplementationClassName() {
			return impl;
		}

	}

	/**
	 * Logging facility.
	 */
	private final Logger log = LoggerFactory
			.getLogger(SignatureCardFactory.class);

	/**
	 * The instance to be returned by {@link #getInstance()}.
	 */
	private static SignatureCardFactory instance;

	/**
	 * The list of supported smart cards.
	 */
	private List<SupportedCard> supportedCards;

	/**
	 * @return an instance of this SignatureCardFactory.
	 */
	public static synchronized SignatureCardFactory getInstance() {
		if (instance == null) {
			instance = new SignatureCardFactory();
		}
		return instance;
	}

	/**
	 * Private constructor.
	 */
	private SignatureCardFactory() {

		supportedCards = new ArrayList<SupportedCard>();

		// e-card
		supportedCards.add(new SupportedCard(
				// ATR
				// (3b:bd:18:00:81:31:fe:45:80:51:02:00:00:00:00:00:00:00:00:00:00:00)
				new byte[] { (byte) 0x3b, (byte) 0xbd, (byte) 0x18,
						(byte) 0x00, (byte) 0x81, (byte) 0x31, (byte) 0xfe,
						(byte) 0x45, (byte) 0x80, (byte) 0x51, (byte) 0x02,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00, (byte) 0x00, (byte) 0x00 },
				// mask
				// (ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:00:00:00:00:00:00:00:00:00:00:00)
				new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00, (byte) 0x00, (byte) 0x00 },
				"at.gv.egiz.smcc.STARCOSCard"));

		// e-card G3
		supportedCards.add(new SupportedCard(
		// ATR
				// (3b:dd:96:ff:81:b1:fe:45:1f:03:80:31:b0:52:02:03:64:04:1b:b4:22:81:05:18)
				new byte[] { (byte) 0x3b, (byte) 0xdd, (byte) 0x96,
						(byte) 0xff, (byte) 0x81, (byte) 0xb1, (byte) 0xfe,
						(byte) 0x45, (byte) 0x1f, (byte) 0x03, (byte) 0x00,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00 },
				// mask (
				new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0x00,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00 }, "at.gv.egiz.smcc.STARCOSCard"));

		// a-sign premium (EPA)
		supportedCards.add(new SupportedCard(
		// ATR
				// (3b:bf:11:00:81:31:fe:45:45:50:41:00:00:00:00:00:00:00:00:00:00:00:00:00)
				new byte[] { (byte) 0x3b, (byte) 0xbf, (byte) 0x11,
						(byte) 0x00, (byte) 0x81, (byte) 0x31, (byte) 0xfe,
						(byte) 0x45, (byte) 0x45, (byte) 0x50, (byte) 0x41,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00 },
				// mask
				// (ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:00:00:00:00:00:00:00:00:00:00:00:00:00)
				new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00 }, "at.gv.egiz.smcc.ACOSCard"));

		// a-sign premium (MCA)
		supportedCards.add(new SupportedCard(
		// ATR
				// (3b:bf:11:00:81:31:fe:45:45:50:41:00:00:00:00:00:00:00:00:00:00:00:00:00)
				new byte[] { (byte) 0x3b, (byte) 0xbf, (byte) 0x11,
						(byte) 0x00, (byte) 0x81, (byte) 0x31, (byte) 0xfe,
						(byte) 0x45, (byte) 0x4D, (byte) 0x43, (byte) 0x41,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00 },
				// mask
				// (ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:00:00:00:00:00:00:00:00:00:00:00:00:00)
				new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
						(byte) 0x00 }, "at.gv.egiz.smcc.ACOSCard"));

		// BELPIC
		supportedCards.add(new SupportedCard(
				// ATR (3b:98:13:40:0A:A5:03:01:01:01:AD:13:11)
				new byte[] { (byte) 0x3b, (byte) 0x98, (byte) 0x13,
						(byte) 0x40, (byte) 0x0a, (byte) 0xa5, (byte) 0x03,
						(byte) 0x01, (byte) 0x01, (byte) 0x01, (byte) 0xad,
						(byte) 0x13, (byte) 0x11 },
				// mask (ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff)
				new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff },
				"at.gv.egiz.smcc.BELPICCard"));
		supportedCards.add(new SupportedCard(
				// ATR [3b:98:_94_:40:_ff_:a5:03:01:01:01:ad:13:_10_]
				new byte[] { (byte) 0x3b, (byte) 0x98, (byte) 0x94,
						(byte) 0x40, (byte) 0xff, (byte) 0xa5, (byte) 0x03,
						(byte) 0x01, (byte) 0x01, (byte) 0x01, (byte) 0xad,
						(byte) 0x13, (byte) 0x10 },
				// mask (ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff)
				new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff },
				"at.gv.egiz.smcc.BELPICCard"));
		supportedCards.add(new SupportedCard(
				// ATR [3b:98:_94_:40:0a:a5:03:01:01:01:ad:13:_10_]
				new byte[] { (byte) 0x3b, (byte) 0x98, (byte) 0x94,
						(byte) 0x40, (byte) 0x0a, (byte) 0xa5, (byte) 0x03,
						(byte) 0x01, (byte) 0x01, (byte) 0x01, (byte) 0xad,
						(byte) 0x13, (byte) 0x10 },
				// mask (ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff)
				new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff },
				"at.gv.egiz.smcc.BELPICCard"));
		supportedCards.add(new SupportedCard(
				// ATR [3b:98:_95_:40:0a:a5:_07_:01:01:01:ad:13:_20_]
				new byte[] { (byte) 0x3b, (byte) 0x98, (byte) 0x95,
						(byte) 0x40, (byte) 0x0a, (byte) 0xa5, (byte) 0x07,
						(byte) 0x01, (byte) 0x01, (byte) 0x01, (byte) 0xad,
						(byte) 0x13, (byte) 0x20 },
				// mask (ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff)
				new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff },
				"at.gv.egiz.smcc.BELPICCard"));

		// ES DNIe
		supportedCards.add(new SupportedCard(
		// ATR [3b:7f:38:00:00:00:6a:44:4e:49:65:20:02:4c:34:01:13:03:90:00]
				new byte[] { (byte) 0x3b, (byte) 0x7F, (byte) 0x38,
						(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x6A,
						(byte) 0x44, (byte) 0x4E, (byte) 0x49, (byte) 0x65,
						(byte) 0x00, (byte) 0x02, (byte) 0x4C, (byte) 0x34,
						(byte) 0x01, (byte) 0x13, (byte) 0x00, (byte) 0x90,
						(byte) 0x00 },
				// mask (ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff)
				new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0x00, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0x00, (byte) 0xff,
						(byte) 0xff }, "at.gv.egiz.smcc.ESDNIeCard"));

		// FMNT card - ATR is correct, but implementation is NOT equal to DNIe
//		supportedCards.add(new SupportedCard(
//				// ATR
//				// [3b:ef:00:00:40:14:80:25:43:45:52:45:53:57:01:16:01:01:03:90:00]
//				new byte[] { (byte) 0x3b, (byte) 0xEF, (byte) 0x00,
//						(byte) 0x00, (byte) 0x40, (byte) 0x14, (byte) 0x80,
//						(byte) 0x25, (byte) 0x43, (byte) 0x45, (byte) 0x52,
//						(byte) 0x45, (byte) 0x53, (byte) 0x57, (byte) 0x01,
//						(byte) 0x16, (byte) 0x01, (byte) 0x01, (byte) 0x03,
//						(byte) 0x90, (byte) 0x00 },
//				// mask (ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff)
//				new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff,
//						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
//						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
//						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
//						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
//						(byte) 0xff, (byte) 0xff },
//				"at.gv.egiz.smcc.ESDNIeCard"));

		// FIN eID
		supportedCards.add(new SupportedCard(
		// ATR [3b:7B:94:00:00:80:62:12:51:56:46:69:6E:45:49:44]
				new byte[] { (byte) 0x3b, (byte) 0x7B, (byte) 0x94,
						(byte) 0x00, (byte) 0x00, (byte) 0x80, (byte) 0x62,
						(byte) 0x00, (byte) 0x51, (byte) 0x56, (byte) 0x46,
						(byte) 0x69, (byte) 0x6E, (byte) 0x45, (byte) 0x49,
						(byte) 0x44 },
				// mask (ff:ff:ff:ff:ff:ff:ff:00:ff:ff:ff:ff:ff:ff:ff:ff) -
				// ignore card OS minor version
				new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0x00, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff }, "at.gv.egiz.smcc.FINEIDCard"));

		// ITCards
		supportedCards.add(new SupportedCard(
		// ATR =
				// [3b:ff:18:00:ff:81:31:fe:55:00:6b:02:09:02:00:01:11:01:43:4e:53:11:31:80:8e]
				new byte[] { (byte) 0x3b, (byte) 0xff, (byte) 0x18,
						(byte) 0x00, (byte) 0xff, (byte) 0x81, (byte) 0x31,
						(byte) 0xfe, (byte) 0x55, (byte) 0x00, (byte) 0x6b,
						(byte) 0x02, (byte) 0x09 /*
												 * , (byte) 0x02, (byte) 0x00,
												 * (byte) 0x01, (byte) 0x11,
												 * (byte) 0x01, (byte) 0x43,
												 * (byte) 0x4e, (byte) 0x53,
												 * (byte) 0x11, (byte) 0x31,
												 * (byte) 0x80, (byte) 0x8e
												 */
				},
				// mask (ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff)
				new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff /*
												 * , (byte) 0xff, (byte) 0xff,
												 * (byte) 0xff, (byte) 0xff,
												 * (byte) 0xff, (byte) 0xff,
												 * (byte) 0xff, (byte) 0xff,
												 * (byte) 0xff, (byte) 0xff,
												 * (byte) 0xff, (byte) 0xff
												 */
				}, "at.gv.egiz.smcc.ITCard"));
		supportedCards.add(new SupportedCard(
				// ATR
				// (3B:FF:18:00:FF:C1:0A:31:FE:55:00:6B:05:08:C8:05:01:01:01:43:4E:53:10:31:80:1C)
				new byte[] { (byte) 0x3b, (byte) 0xff, (byte) 0x18,
						(byte) 0x00, (byte) 0xFF, (byte) 0xC1, (byte) 0x0a,
						(byte) 0x31, (byte) 0xfe, (byte) 0x55, (byte) 0x00,
						(byte) 0x6B, (byte) 0x05, (byte) 0x08, (byte) 0xC8,
						(byte) 0x05, (byte) 0x01, (byte) 0x01, (byte) 0x01,
						(byte) 0x43, (byte) 0x4E, (byte) 0x53, (byte) 0x10,
						(byte) 0x31, (byte) 0x80, (byte) 0x1C },
				// mask
				// (ff:ff:ff:00:00:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:00:00:00:00)
				new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff },
				"at.gv.egiz.smcc.ITCard"));

		// EstEID cards return different ATRs depending on the reader device
		supportedCards.add(new SupportedCard(
				// ATR
				// (3B:5E:11:FF:45:73:74:45:49:44:20:76:65:72:20:31:2E:30)
				new byte[] { (byte) 0x3b, (byte) 0x00, (byte) 0x00,
						(byte) 0xff, (byte) 0x45, (byte) 0x73, (byte) 0x74,
						(byte) 0x45, (byte) 0x49, (byte) 0x44, (byte) 0x20,
						(byte) 0x76, (byte) 0x65, (byte) 0x72, (byte) 0x20,
						(byte) 0x31, (byte) 0x2e, (byte) 0x30 },
				// mask
				// (ff:00:00:00:00:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff)
				new byte[] { (byte) 0xff, (byte) 0x00, (byte) 0x00,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff },
				"at.gv.egiz.smcc.EstEIDCard"));

		// EstEID cards return different ATRs depending on the reader device
		supportedCards.add(new SupportedCard(
				// ATR
				// (3B:DE:18:FF:C0:80:B1:FE:45:1F:03:45:73:74:45:49:44:20:76:65:72:20:31:2E:30:2B)
				new byte[] { (byte) 0x3b, (byte) 0xde, (byte) 0x18,
						(byte) 0xff, (byte) 0xc0, (byte) 0x80, (byte) 0xb1,
						(byte) 0xfe, (byte) 0x45, (byte) 0x1f, (byte) 0x03,
						(byte) 0x45, (byte) 0x73, (byte) 0x74, (byte) 0x45,
						(byte) 0x49, (byte) 0x44, (byte) 0x20, (byte) 0x76,
						(byte) 0x65, (byte) 0x72, (byte) 0x20, (byte) 0x31,
						(byte) 0x2e, (byte) 0x30, (byte) 0x2b },
				// mask
				// (ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:00:00:00:00)
				new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff },
				"at.gv.egiz.smcc.EstEIDCard"));
		supportedCards.add(new SupportedCard(
				// ATR
				// (3b:fe:94:00:ff:80:b1:fa:45:1f:03:45:73:74:45:49:44:20:76:65:72:20:31:2e:30:43)
				new byte[] { (byte) 0x3b, (byte) 0xfe, (byte) 0x94,
						(byte) 0x00, (byte) 0xff, (byte) 0x80, (byte) 0xb1,
						(byte) 0xfa, (byte) 0x45, (byte) 0x1f, (byte) 0x03,
						(byte) 0x45, (byte) 0x73, (byte) 0x74, (byte) 0x45,
						(byte) 0x49, (byte) 0x44, (byte) 0x20, (byte) 0x76,
						(byte) 0x65, (byte) 0x72, (byte) 0x20, (byte) 0x31,
						(byte) 0x2e, (byte) 0x30, (byte) 0x43 },
				// mask
				// (ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:00:00:00:00)
				new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff },
				"at.gv.egiz.smcc.EstEIDCard"));
		
		supportedCards.add(new SupportedCard(
				// ATR (3B:7D:95:00:00:80:31:80:65:B0:83:11:C0:A9:83:00:90:00 -
				// 00:00:00:00)
				new byte[] { (byte) 0x3b, (byte) 0x7d, (byte) 0x95,
						(byte) 0x00, (byte) 0x00, (byte) 0x80, (byte) 0x31,
						(byte) 0x80, (byte) 0x65, (byte) 0xb0, (byte) 0x83,
						(byte) 0x11, (byte) 0xc0, (byte) 0xa9, (byte) 0x83,
						(byte) 0x00, (byte) 0x90, (byte) 0x00 },
				// mask
				// (ff:ff:ff:00:00:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:00:00:00:00)
				new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0x00, (byte) 0x00, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0x00, (byte) 0xff, (byte) 0x00 },
				"at.gv.egiz.smcc.PtEidCard"));

		supportedCards.add(new SupportedCard(
				// SwissSign ATR
				// 3b:fa:18:00:02:c1:0a:31:fe:58:4b:53:77:69:73:73:53:69:67:6e:89
				new byte[] { (byte) 0x3b, (byte) 0xfa, (byte) 0x18,
						(byte) 0x00, (byte) 0x02, (byte) 0xc1, (byte) 0x0a,
						(byte) 0x31, (byte) 0xfe, (byte) 0x58, (byte) 0x4b,
						'S', 'w', 'i', 's', 's', 'S', 'i', 'g', 'n',
						(byte) 0x89 },
				// mask
				new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff },
				"at.gv.egiz.smcc.SuisseIDCard"));

		supportedCards.add(new SupportedCard(
				// QuoVadis ATR 3b:f2:18:00:02:c1:0a:31:fe:58:c8:08:74
				new byte[] { (byte) 0x3b, (byte) 0xf2, (byte) 0x18,
						(byte) 0x00, (byte) 0x02, (byte) 0xc1, (byte) 0x0a,
						(byte) 0x31, (byte) 0xfe, (byte) 0x58, (byte) 0xc8,
						(byte) 0x08, (byte) 0x74 },
				// mask
				new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff },
				"at.gv.egiz.smcc.SuisseIDCard"));

		supportedCards.add(new SupportedCard(
				// FL-Post card
				// [3b:bb:18:00:c0:10:31:fe:45:80:67:04:12:
				// b0:03:03:00:00:81:05:3c]
				new byte[] { (byte) 0x3b, (byte) 0xbb, (byte) 0x18,
						(byte) 0x00, (byte) 0xc0, (byte) 0x10, (byte) 0x31,
						(byte) 0xfe, (byte) 0x45, (byte) 0x80, (byte) 0x67,
						(byte) 0x04, (byte) 0x12, (byte) 0xb0, (byte) 0x03,
						(byte) 0x03, (byte) 0x00, (byte) 0x00, (byte) 0x81,
						(byte) 0x05, (byte) 0x3c },
				// mask
				new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
						(byte) 0xff, (byte) 0xff },
				"at.gv.egiz.smcc.LIEZertifikatCard"));

	}

	/**
	 * Creates a SignatureCard instance with the given smart card.
	 * 
	 * @param card
	 *            the smart card, or <code>null</code> if a software card should
	 *            be created
	 * @param cardTerminal
	 *            TODO
	 * 
	 * @return a SignatureCard instance
	 * 
	 * @throws CardNotSupportedException
	 *             if no implementation of the given <code>card</code> could be
	 *             found
	 */
	public SignatureCard createSignatureCard(Card card,
			CardTerminal cardTerminal) throws CardNotSupportedException {

		if (card == null) {
			SignatureCard sCard = new SWCard();
			sCard.init(card, cardTerminal);
			return sCard;
		}

		ATR atr = card.getATR();
		Iterator<SupportedCard> cards = supportedCards.iterator();
		while (cards.hasNext()) {
			SupportedCard supportedCard = cards.next();
			if (supportedCard.matches(atr)) {

				ClassLoader cl = SignatureCardFactory.class.getClassLoader();
				SignatureCard sc;
				try {
					Class<?> scClass = cl.loadClass(supportedCard
							.getImplementationClassName());
					sc = (SignatureCard) scClass.newInstance();

					sc = ExclSignatureCardProxy.newInstance(sc);

					sc.init(card, cardTerminal);

					return sc;

				} catch (ClassNotFoundException e) {
					log.warn(
							"Cannot find signature card implementation class.",
							e);
					throw new CardNotSupportedException(
							"Cannot find signature card implementation class.",
							e);
				} catch (InstantiationException e) {
					log
							.warn(
									"Failed to instantiate signature card implementation.",
									e);
					throw new CardNotSupportedException(
							"Failed to instantiate signature card implementation.",
							e);
				} catch (IllegalAccessException e) {
					log
							.warn(
									"Failed to instantiate signature card implementation.",
									e);
					throw new CardNotSupportedException(
							"Failed to instantiate signature card implementation.",
							e);
				}

			}
		}

		throw new CardNotSupportedException("Card not supported: ATR="
				+ toString(atr.getBytes()));

	}

	public static String toString(byte[] b) {
		StringBuffer sb = new StringBuffer();
		if (b != null && b.length > 0) {
			sb.append(Integer.toHexString((b[0] & 240) >> 4));
			sb.append(Integer.toHexString(b[0] & 15));
		}
		for (int i = 1; i < b.length; i++) {
			sb.append(':');
			sb.append(Integer.toHexString((b[i] & 240) >> 4));
			sb.append(Integer.toHexString(b[i] & 15));
		}
		return sb.toString();
	}

}