Save This Page
Home » openjdk-7 » com.sun.crypto » provider » [javadoc | source]
    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 DES 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 DESParameters extends AlgorithmParametersSpi {
   49   
   50       private BlockCipherParamsCore core;
   51   
   52       public DESParameters() {
   53           core = new BlockCipherParamsCore(DESConstants.DES_BLOCK_SIZE);
   54       }
   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   }

Save This Page
Home » openjdk-7 » com.sun.crypto » provider » [javadoc | source]