import?java.security.*;
import?javax.crypto.*;

public?class?AESKey{
	private?final?static?int?BIT?=?128;
	private?KeyGenerator?keyGen;
	private?Key?key;
	
	public?AESKey（）?{
		try?{
			keyGen?=?KeyGenerator.getInstance（“AES“）;
			generateKey（）;
		}?catch?（NoSuchAlgorithmException?e）?{
			e.printStackTrace（）;
		}
	}
	public?byte[]?AESencrypt（byte[]?plainTextKey?k）throws?Exception
	{	
		Cipher?cipher=Cipher.getInstance（“AES“）;
		cipher.init（Cipher.ENCRYPT_MODEk）;
		byte[]?cipherText=cipher.doFinal（plainText）;	
		return?cipherText;	
	}
	
	
	public?String?AESdecrypt（byte[]?tKey?k）throws?Exception
	{
		Cipher?cipher=Cipher.getInstance（“AES“）;	
		cipher.init（Cipher.DECRYPT_MODEk）;
		byte[]?newPlainText?=?cipher.doFinal（t）;	
		return?new?String（newPlainText“UTF8“）;		
	}
	private?void?generateKey（）?{
		keyGen.init（BIT）;
		key?=?keyGen.generateKey（）;
	}
	
	public?Key?getKey（）{
		return?key;
	}
}

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

?????文件????????232??2008-06-02?12:46??SecurityProject\.classpath

?????文件????????391??2008-05-28?23:57??SecurityProject\.project

?????文件??????????0??2008-06-04?22:55??SecurityProject\bin\AESKey

?????文件???????1675??2008-06-04?23:10??SecurityProject\bin\AESKey.class

?????文件???????3622??2008-06-04?21:38??SecurityProject\bin\ASserver.class

?????文件????????503??2008-06-04?18:47??SecurityProject\bin\AS_C.class

?????文件????????674??2008-06-04?18:47??SecurityProject\bin\Authenticator_s.class

?????文件????????680??2008-06-04?18:47??SecurityProject\bin\Authenticator_tgs.class

?????文件????????922??2008-06-05?21:44??SecurityProject\bin\Client$1.class

?????文件???????1352??2008-06-05?21:44??SecurityProject\bin\Client$2.class

?????文件??????14226??2008-06-05?21:44??SecurityProject\bin\Client.class

?????文件????????498??2008-06-04?18:47??SecurityProject\bin\C_AS.class

?????文件????????610??2008-06-04?18:47??SecurityProject\bin\C_S.class

?????文件????????771??2008-06-04?18:47??SecurityProject\bin\C_TGS.class

?????文件???????1499??2008-06-04?18:47??SecurityProject\bin\DEScode.class

?????文件???????1620??2008-06-04?18:48??SecurityProject\bin\FileStream.class

?????文件???????1418??2008-06-04?20:29??SecurityProject\bin\RSACryptography.class

?????文件???????5831??2008-06-04?23:21??SecurityProject\bin\SServer.class

?????文件????????374??2008-06-04?18:47??SecurityProject\bin\S_C.class

?????文件???????5950??2008-06-04?22:45??SecurityProject\bin\TGSserver.class

?????文件????????493??2008-06-04?18:47??SecurityProject\bin\TGS_C.class

?????文件????????981??2008-06-04?22:03??SecurityProject\bin\Ticket_s.class

?????文件???????1195??2008-06-04?20:57??SecurityProject\bin\Ticket_tgs.class

?????文件???????4519??2008-06-04?21:29??SecurityProject\bin\Utils.class

?????文件????????419??2008-06-04?21:29??SecurityProject\keys\pbclient.txt

?????文件????????419??2008-06-04?21:29??SecurityProject\keys\pbserver.txt

?????文件????????419??2008-06-04?21:29??SecurityProject\keys\pbtgs.txt

?????文件????????894??2008-06-04?21:29??SecurityProject\keys\prclient.txt

?????文件????????893??2008-06-04?21:29??SecurityProject\keys\prserver.txt

?????文件????????894??2008-06-04?21:29??SecurityProject\keys\prtgs.txt

............此處省略26個文件信息