1 /*
   2  * Copyright (c) 1998, 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 com.sun.crypto.provider;
  27 
  28 import java.util.*;
  29 import java.io.*;
  30 import sun.security.util.*;
  31 import java.security.AlgorithmParametersSpi;
  32 import java.security.spec.AlgorithmParameterSpec;
  33 import java.security.spec.InvalidParameterSpecException;
  34 import javax.crypto.spec.IvParameterSpec;
  35 
  36 /**
  37  * This class implements the parameter (IV) used with the Blowfish algorithm in
  38  * feedback-mode. IV is defined in the standards as follows:
  39  *
  40  * <pre>
  41  * IV ::= OCTET STRING  -- 8 octets
  42  * </pre>
  43  *
  44  * @author Jan Luehe
  45  *
  46  */
  47 
  48 public final class BlowfishParameters extends AlgorithmParametersSpi {
  49 
  50     private BlockCipherParamsCore core;
  51 
  52     public BlowfishParameters() {
  53         core = new BlockCipherParamsCore
  54             (BlowfishConstants.BLOWFISH_BLOCK_SIZE);
  55     }
  56     protected void engineInit(AlgorithmParameterSpec paramSpec)
  57         throws InvalidParameterSpecException {
  58         core.init(paramSpec);
  59     }
  60 
  61     protected void engineInit(byte[] encoded)
  62         throws IOException {
  63         core.init(encoded);
  64     }
  65 
  66     protected void engineInit(byte[] encoded, String decodingMethod)
  67         throws IOException {
  68         core.init(encoded, decodingMethod);
  69     }
  70 
  71     protected AlgorithmParameterSpec engineGetParameterSpec(Class paramSpec)
  72         throws InvalidParameterSpecException {
  73         return core.getParameterSpec(paramSpec);
  74     }
  75 
  76     protected byte[] engineGetEncoded() throws IOException {
  77         return core.getEncoded();
  78     }
  79 
  80     protected byte[] engineGetEncoded(String encodingMethod)
  81         throws IOException {
  82         return core.getEncoded();
  83     }
  84 
  85     protected String engineToString() {
  86         return core.toString();
  87     }
  88 }