60 lines
2.3 KiB
Java
60 lines
2.3 KiB
Java
/* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */
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/*
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Copyright (c) 2013-2015 ymnk, JCraft,Inc. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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3. The names of the authors may not be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT,
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INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package com.jcraft.jsch.jce;
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import com.jcraft.jsch.HASH;
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import javax.crypto.spec.PBEKeySpec;
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import javax.crypto.SecretKeyFactory;
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import java.security.spec.InvalidKeySpecException;
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import java.security.NoSuchAlgorithmException;
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public class PBKDF implements com.jcraft.jsch.PBKDF{
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public byte[] getKey(byte[] _pass, byte[] salt, int iterations, int size){
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char[] pass=new char[_pass.length];
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for(int i = 0; i < _pass.length; i++){
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pass[i]=(char)(_pass[i]&0xff);
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}
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try {
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PBEKeySpec spec =
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new PBEKeySpec(pass, salt, iterations, size*8);
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SecretKeyFactory skf =
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SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
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byte[] key = skf.generateSecret(spec).getEncoded();
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return key;
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}
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catch(InvalidKeySpecException e){
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}
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catch(NoSuchAlgorithmException e){
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}
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return null;
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}
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}
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