package?org.transfer.secret;

import?java.io.BufferedOutputStream;
import?java.io.File;
import?java.io.FileOutputStream;
import?java.io.RandomAccessFile;

import?org.transfer.util.Log;

public?class?DecryptRecevieFile?{

	private?File?recevieFile;
	
	private?RandomAccessFile?randomAccessFile?=?null;

	private?BufferedOutputStream?bos?=?null;
	
	private?String?publicKeyPath;
	
	private?String?savePath;
	
	private?byte[]?readByte?=?new?byte[1024*10];
	
	public?DecryptRecevieFile（File?recevieFileString?publicKeyPathString?savePath）{
		this.recevieFile?=?recevieFile;
		this.publicKeyPath?=?publicKeyPath;
		this.savePath?=?savePath;
	}
	
	public?boolean?getEnFileByDes（）{
		try{
			File?temp?=?new?File（“recevie/“+System.currentTimeMillis（）+“_“+recevieFile.getName（））;
			bos?=?new?BufferedOutputStream（new?FileOutputStream（temp））;
			randomAccessFile?=?new?RandomAccessFile（recevieFile“rws“）;
			long?sessionKeyLength?=?randomAccessFile.readLong（）;
			byte[]?recevie?=?new?byte[（int）sessionKeyLength];
			randomAccessFile.read（recevie?0?recevie.length）;
			String?sessionKeyEn?=?new?String（recevie）;
			String?sessionKey?=??RSA.decrypt（sessionKeyEn?new?File（“myselfKey/private_key.dat“））;
			Log.print（“get?Session?key?sessionkey?=?“+sessionKey）;
			int?readLength?=?0;
????????????while（（readLength?=?randomAccessFile.read（readByte））>0）{
????????????	bos.write（readByte0readLength）;
????????????????bos.flush（）;
????????????}
????????????bos.close（）;
????????????randomAccessFile.close（）;
????????????recevieFile.delete（）;
????????????Log.print（“get?Temp?filefile?length?=?“+temp.length（））;
????????????
????????????String?newFileName?=?DES.desFile（temp?sessionKey）;
????????????Log.print（“decrypt?the?file?successfully“）;
????????????temp.delete（）;
????????????File?M?=?new?File（newFileName）;
????????????File?reallyFile?=?new?File（savePath+recevieFile.getName（））;?
????????????bos?=?new?BufferedOutputStream（new?FileOutputStream（reallyFile））;
			randomAccessFile?=?new?RandomAccessFile（M“rws“）;
			long?md5StringLength?=?randomAccessFile.readLong（）;
			Log.print（“md5?length?=?“+md5StringLength）;
			byte?[]?md5Byte?=?new?byte[（int）md5StringLength];
			randomAccessFile.read（md5Byte?0?md5Byte.length）;
			
			byte[]?oldMD5Value?=?RSA.decryptByPublicKey（md5Byte?new?File（publicKeyPath））;
			
			String?md5Str?=?new?String（oldMD5Value）;
			Log.print（“new?md5?=“+new?String（md5Str））;
			int?length?=?0;
			while（（length?=?randomAccessFile.read（readByte））>0）{
				bos.write（readByte?0?length）;
				bos.flush（）;
			}
????????????bos.close（）;
????????????randomAccessFile.close（）;
????????????M.delete（）;
????????????String?newMD5Value?=?MD5.computeFile（reallyFile）;
????????????if（md5Str.equals（newMD5Value））{
????????????	return?true;
????????????}
????????????return?false;
		}catch（Exception?e）{
			Log.print（e.getMessage（））;
			return?false;
		}
	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????291??2009-11-27?21:05??SecTransfer\.classpath

?????文件?????????66??2009-11-27?21:03??SecTransfer\.myumldata

?????文件????????387??2009-11-27?20:47??SecTransfer\.project

?????文件????????629??2009-11-27?21:02??SecTransfer\.settings\org.eclipse.jdt.core.prefs

?????文件?????????99??2009-11-27?21:02??SecTransfer\.settings\org.eclipse.jdt.ui.prefs

?????文件?????127076??2009-11-29?14:22??SecTransfer\audio\Begin.wav

?????文件??????43402??2009-11-29?14:22??SecTransfer\audio\dead.wav

?????文件??????54958??2009-11-29?14:22??SecTransfer\audio\gamewin.wav

?????文件???????3362??2009-11-29?14:22??SecTransfer\audio\go.wav

?????文件?????????39??2009-11-29?18:25??SecTransfer\conf.txt

?????文件??????11022??2009-11-20?15:18??SecTransfer\icon\icon.png

????..A.SH.??????9728??2009-11-28?21:05??SecTransfer\icon\Thumbs.db

?????文件??????11001??2009-12-06?22:53??SecTransfer\log\200912062253.rar

?????文件???????5364??2010-01-22?15:27??SecTransfer\log\log.txt

?????文件????????892??2009-12-05?23:07??SecTransfer\myselfKey\private_key.dat

?????文件????????419??2009-12-05?23:07??SecTransfer\myselfKey\public_key.dat

?????文件???????3547??2009-12-07?11:31??SecTransfer\org\transfer\secret\DecryptRecevieFile.class

?????文件???????2959??2009-12-05?23:19??SecTransfer\org\transfer\secret\DecryptRecevieFile.java

?????文件???????3752??2009-12-07?11:31??SecTransfer\org\transfer\secret\DES.class

?????文件???????2762??2009-12-05?17:51??SecTransfer\org\transfer\secret\DES.java

?????文件???????4283??2009-12-07?11:31??SecTransfer\org\transfer\secret\EncryptSendFile.class

?????文件???????3422??2009-12-05?23:15??SecTransfer\org\transfer\secret\EncryptSendFile.java

?????文件???????2379??2009-12-07?11:31??SecTransfer\org\transfer\secret\MD5.class

?????文件???????1437??2009-12-05?17:52??SecTransfer\org\transfer\secret\MD5.java

?????文件???????6037??2009-12-07?11:31??SecTransfer\org\transfer\secret\RSA.class

?????文件???????6080??2009-12-04?22:42??SecTransfer\org\transfer\secret\RSA.java

?????文件???????5872??2009-12-07?11:31??SecTransfer\org\transfer\thread\RecevieThread.class

?????文件???????4946??2009-12-06?22:11??SecTransfer\org\transfer\thread\RecevieThread.java

?????文件???????5747??2009-12-07?11:31??SecTransfer\org\transfer\thread\SendThread.class

?????文件???????4980??2009-12-06?22:53??SecTransfer\org\transfer\thread\SendThread.java

............此處省略60個文件信息