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/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You 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 javax.crypto.spec;

import java.security.spec.AlgorithmParameterSpec;

/**
 * The algorithm parameter specification for a password based encryption
 * algorithm.
 * 

* Password based encryption is described in PKCS #5. * */ public class PBEParameterSpec implements AlgorithmParameterSpec { private final byte[] salt; private final int iterationCount; /** * Creates a new PBEParameterSpec with the specified salt and * iteration count. * * @param salt * the salt. * @param iterationCount * the iteration count. * @throws NullPointerException * if salt is null. */ public PBEParameterSpec(byte[] salt, int iterationCount) { if (salt == null) { throw new NullPointerException("salt == null"); } this.salt = new byte[salt.length]; System.arraycopy(salt, 0, this.salt, 0, salt.length); this.iterationCount = iterationCount; } /** * Returns a copy to the salt. * * @return a copy to the salt. */ public byte[] getSalt() { byte[] result = new byte[salt.length]; System.arraycopy(salt, 0, result, 0, salt.length); return result; } /** * Returns the iteration count. * * @return the iteration count. */ public int getIterationCount() { return iterationCount; } }





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