encryptedinputstream.java

来自「基于Eclipse RCP开发的管理工具」· Java 代码 · 共 57 行

 /*  
  * Copyright 2006 Marcel Schoffelmeer 
  * 
  * Licensed under the Apache License, Version 2.0 (the "License"); 
  * you may not use this file except in compliance with the License. 
  * You may obtain a copy of the License at 
  * 
  *    http://www.apache.org/licenses/LICENSE-2.0 
  *    
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS, 
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

package com.s10r.io;

import java.io.IOException;
import java.io.InputStream;

import javax.crypto.Cipher;
import javax.crypto.CipherInputStream;

import com.s10r.crypto.CipherUtil;

public class EncryptedInputStream extends InputStream
{
    private CipherInputStream in = null;

    public EncryptedInputStream(InputStream in, String password)
    {
        Cipher pbeCipher = CipherUtil.createCipher(Cipher.DECRYPT_MODE, password);

        this.in = new CipherInputStream(in, pbeCipher);
    }
 
    @Override
    public int read() throws IOException
    {
        return in.read();
    }

    @Override
    public void close() throws IOException
    {
        super.close();
        in.close();
    }

}