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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package org.apache.harmony.crypto.tests.javax.crypto.func;
     17 
     18 
     19 import java.security.Key;
     20 import java.security.SecureRandom;
     21 
     22 import javax.crypto.Cipher;
     23 import javax.crypto.KeyGenerator;
     24 
     25 public class CipherWrapThread extends CipherThread {
     26     CipherWrapThread(String name, int[] keys, String[] modes, String[] paddings) {
     27         super(name, keys, modes, paddings);
     28     }
     29 
     30     @Override
     31     public void crypt() throws Exception {
     32         KeyGenerator kg = KeyGenerator.getInstance(getAlgName().replace("Wrap", ""));
     33         kg.init(getKeyLength(), new SecureRandom());
     34         Key key = kg.generateKey();
     35 
     36         // ignore mode and padding
     37         Cipher cip = Cipher.getInstance(getAlgName());
     38 
     39         cip.init(Cipher.WRAP_MODE, key);
     40         byte[] output = cip.wrap(key);
     41         cip.init(Cipher.UNWRAP_MODE, key);
     42         Key decrypted = cip.unwrap(output, getAlgName(), Cipher.SECRET_KEY);
     43 
     44         checkEncodedData(key.getFormat().getBytes(), decrypted.getFormat().getBytes());
     45         checkEncodedData(key.getEncoded(), decrypted.getEncoded());
     46     }
     47 }
     48