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    1   /*
    2    * Copyright (c) 1997, 2007, Oracle and/or its affiliates. All rights reserved.
    3    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
    4    *
    5    * This code is free software; you can redistribute it and/or modify it
    6    * under the terms of the GNU General Public License version 2 only, as
    7    * published by the Free Software Foundation.  Oracle designates this
    8    * particular file as subject to the "Classpath" exception as provided
    9    * by Oracle in the LICENSE file that accompanied this code.
   10    *
   11    * This code is distributed in the hope that it will be useful, but WITHOUT
   12    * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   13    * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   14    * version 2 for more details (a copy is included in the LICENSE file that
   15    * accompanied this code).
   16    *
   17    * You should have received a copy of the GNU General Public License version
   18    * 2 along with this work; if not, write to the Free Software Foundation,
   19    * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   20    *
   21    * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   22    * or visit www.oracle.com if you need additional information or have any
   23    * questions.
   24    */
   25   
   26   package javax.crypto.spec;
   27   
   28   import java.math.BigInteger;
   29   import java.security.spec.AlgorithmParameterSpec;
   30   
   31   /**
   32    * This class specifies the set of parameters used with password-based
   33    * encryption (PBE), as defined in the
   34    * <a href="http://www.ietf.org/rfc/rfc2898.txt">PKCS #5</a>
   35    * standard.
   36    *
   37    * @author Jan Luehe
   38    *
   39    * @since 1.4
   40    */
   41   public class PBEParameterSpec implements AlgorithmParameterSpec {
   42   
   43       private byte[] salt;
   44       private int iterationCount;
   45   
   46       /**
   47        * Constructs a parameter set for password-based encryption as defined in
   48        * the PKCS #5 standard.
   49        *
   50        * @param salt the salt. The contents of <code>salt</code> are copied
   51        * to protect against subsequent modification.
   52        * @param iterationCount the iteration count.
   53        * @exception NullPointerException if <code>salt</code> is null.
   54        */
   55       public PBEParameterSpec(byte[] salt, int iterationCount) {
   56           this.salt = (byte[])salt.clone();
   57           this.iterationCount = iterationCount;
   58       }
   59   
   60       /**
   61        * Returns the salt.
   62        *
   63        * @return the salt. Returns a new array
   64        * each time this method is called.
   65        */
   66       public byte[] getSalt() {
   67           return (byte[])this.salt.clone();
   68       }
   69   
   70       /**
   71        * Returns the iteration count.
   72        *
   73        * @return the iteration count
   74        */
   75       public int getIterationCount() {
   76           return this.iterationCount;
   77       }
   78   }

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