/* * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.sun.crypto.provider; import java.util.Arrays; import java.nio.ByteBuffer; import javax.crypto.MacSpi; import javax.crypto.SecretKey; import javax.crypto.spec.SecretKeySpec; import javax.crypto.spec.PBEParameterSpec; import java.security.*; import java.security.spec.*; /** * This is an implementation of the HMAC-PBESHA1 algorithm as defined * in PKCS#12 v1.0 standard. * * @author Valerie Peng */ public final class HmacPKCS12PBESHA1 extends HmacCore { /** * Standard constructor, creates a new HmacSHA1 instance. */ public HmacPKCS12PBESHA1() throws NoSuchAlgorithmException { super("SHA1", 64); } /** * Initializes the HMAC with the given secret key and algorithm parameters. * * @param key the secret key. * @param params the algorithm parameters. * * @exception InvalidKeyException if the given key is inappropriate for * initializing this MAC. * @exception InvalidAlgorithmParameterException if the given algorithm * parameters are inappropriate for this MAC. */ protected void engineInit(Key key, AlgorithmParameterSpec params) throws InvalidKeyException, InvalidAlgorithmParameterException { char[] passwdChars; byte[] salt = null; int iCount = 0; if (key instanceof javax.crypto.interfaces.PBEKey) { javax.crypto.interfaces.PBEKey pbeKey = (javax.crypto.interfaces.PBEKey) key; passwdChars = pbeKey.getPassword(); salt = pbeKey.getSalt(); // maybe null if unspecified iCount = pbeKey.getIterationCount(); // maybe 0 if unspecified } else if (key instanceof SecretKey) { byte[] passwdBytes; if (!(key.getAlgorithm().regionMatches(true, 0, "PBE", 0, 3)) || (passwdBytes = key.getEncoded()) == null) { throw new InvalidKeyException("Missing password"); } passwdChars = new char[passwdBytes.length]; for (int i=0; i