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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.KeyPair;
     20 import java.security.KeyPairGenerator;
     21 
     22 import javax.crypto.Cipher;
     23 
     24 public class CipherRSAThread extends CipherThread {
     25 
     26     CipherRSAThread(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         byte[] output = new byte[256];
     33         byte[] decrypted = new byte[256];
     34         int dataBlock = 20;
     35         byte[] input  =  getData().substring(0, dataBlock).getBytes();
     36         KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");
     37         kpg.initialize(getKeyLength());
     38         KeyPair kp = kpg.generateKeyPair();
     39 
     40         Cipher cip = Cipher.getInstance(getAlgName() + "/" + getMode() + "/" +
     41                 getPadding());
     42         cip.init(Cipher.ENCRYPT_MODE, kp.getPublic());
     43         cip.doFinal(input, 0, input.length, output);
     44         int outputSize = cip.getOutputSize(input.length);
     45         cip.init(Cipher.DECRYPT_MODE, kp.getPrivate());
     46         cip.doFinal(output, 0, outputSize, decrypted);
     47 
     48         checkEncodedData(input, decrypted);
     49     }
     50 }
     51