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This is the master POM file for Oracle's Implementation of the JSF 2.2 Specification.

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/*
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 *
 * Copyright (c) 1997-2013 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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 * If you wish your version of this file to be governed by only the CDDL or
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 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
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package com.sun.faces.renderkit;

import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.Mac;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import javax.faces.FacesException;
import javax.faces.context.FacesContext;

import java.security.SecureRandom;
import java.util.logging.Level;
import java.util.logging.Logger;

import com.sun.faces.util.FacesLogger;
import com.sun.faces.RIConstants;

import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;

import javax.crypto.BadPaddingException;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.SecretKeySpec;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.servlet.http.HttpSession;
import javax.xml.bind.DatatypeConverter;

/**
 * 

This utility class is to provide both encryption and * decryption Ciphers to ResponseStateManager * implementations wishing to provide encryption support.

* *

The algorithm used to encrypt byte array is AES with CBC.

* *

Original author Inderjeet Singh, J2EE Blue Prints Team. Modified to suit JSF * needs.

*/ public final class ByteArrayGuard { // Log instance for this class private static final Logger LOGGER = FacesLogger.RENDERKIT.getLogger(); private static final int MAC_LENGTH = 32; private static final int KEY_LENGTH = 128; private static final int IV_LENGTH = 16; private static final String KEY_ALGORITHM = "AES"; private static final String CIPHER_CODE = "AES/CBC/PKCS5Padding"; private static final String MAC_CODE = "HmacSHA256"; private static final String SK_SESSION_KEY = RIConstants.FACES_PREFIX + "SK"; private SecretKey sk; // ------------------------------------------------------------ Constructors public ByteArrayGuard() { try { setupKeyAndMac(); } catch (Exception e) { if (LOGGER.isLoggable(Level.SEVERE)) { LOGGER.log(Level.SEVERE, "Unexpected exception initializing encryption." + " No encryption will be performed.", e); } System.err.println("ERROR: Initializing Ciphers"); } } // ---------------------------------------------------------- Public Methods /** * This method: * Encrypts bytes using a cipher. * Generates MAC for intialization vector of the cipher * Generates MAC for encrypted data * Returns a byte array consisting of the following concatenated together: * |MAC for cnrypted Data | MAC for Init Vector | Encrypted Data | * @param bytes The byte array to be encrypted. * @return the encrypted byte array. */ public byte[] encrypt(FacesContext facesContext, byte[] bytes) { byte[] securedata = null; try { // Generate IV SecureRandom rand = new SecureRandom(); byte[] iv = new byte[16]; rand.nextBytes(iv); IvParameterSpec ivspec = new IvParameterSpec(iv); Cipher encryptCipher = Cipher.getInstance(CIPHER_CODE); SecretKey secKey = getSecretKey(facesContext); encryptCipher.init(Cipher.ENCRYPT_MODE, secKey, ivspec); Mac encryptMac = Mac.getInstance(MAC_CODE); encryptMac.init(secKey); encryptMac.update(iv); // encrypt the plaintext byte[] encdata = encryptCipher.doFinal(bytes); byte[] macBytes = encryptMac.doFinal(encdata); byte[] tmp = concatBytes(macBytes, iv); securedata = concatBytes(tmp, encdata); } catch (Exception e) { if (LOGGER.isLoggable(Level.SEVERE)) { LOGGER.log(Level.SEVERE, "Unexpected exception initializing encryption." + " No encryption will be performed.", e); } return null; } return securedata; } /** * This method decrypts the provided byte array. * The decryption is only performed if the regenerated MAC * is the same as the MAC for the received value. * @param bytes Encrypted byte array to be decrypted. * @return Decrypted byte array. */ public byte[] decrypt(FacesContext facesContext, byte[] bytes) { try { // Extract MAC byte[] macBytes = new byte[MAC_LENGTH]; System.arraycopy(bytes, 0, macBytes, 0, macBytes.length); // Extract IV byte[] iv = new byte[IV_LENGTH]; System.arraycopy(bytes, macBytes.length, iv, 0, iv.length); // Extract encrypted data byte[] encdata = new byte[bytes.length - macBytes.length - iv.length]; System.arraycopy(bytes, macBytes.length + iv.length, encdata, 0, encdata.length); IvParameterSpec ivspec = new IvParameterSpec(iv); SecretKey secKey = getSecretKey(facesContext); Cipher decryptCipher = Cipher.getInstance(CIPHER_CODE); decryptCipher.init(Cipher.DECRYPT_MODE, secKey, ivspec); // verify MAC by regenerating it and comparing it with the received value Mac decryptMac = Mac.getInstance(MAC_CODE); decryptMac.init(secKey); decryptMac.update(iv); decryptMac.update(encdata); byte[] macBytesCalculated = decryptMac.doFinal(); if (areArrayEqualsConstantTime(macBytes, macBytesCalculated)) { // continue only if the MAC was valid // System.out.println("Valid MAC found!"); byte[] plaindata = decryptCipher.doFinal(encdata); return plaindata; } else { System.err.println("ERROR: MAC did not verify!"); return null; } } catch (Exception e) { System.err.println("ERROR: Decrypting:"+e.getCause()); return null; // Signal to JSF runtime } } private boolean areArrayEqualsConstantTime(byte[] array1, byte[] array2) { boolean result = true; for(int i=0; i




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