import?java.io.FileInputStream;
import?java.io.objectInputStream;
import?java.security.PrivateKey;
import?java.security.PublicKey;

import?javax.crypto.KeyAgreement;
import?javax.crypto.spec.SecretKeySpec;


public?class?KeyAgree?{

	/**
	?*?@param?args
	?*?@throws?Exception?
	?*/
	public?static?void?main（String[]?args）?throws?Exception?{
		//?TODO?Auto-generated?method?stub
		//讀取DH私鑰和對方公鑰
		FileInputStream?f1?=?new?FileInputStream（“Skey_DH_pbk.dat“）;
		objectInputStream?b1?=?new?objectInputStream（f1）;
		PublicKey?pbk?=?（PublicKey）b1.readobject（）;
		
		FileInputStream?f2?=?new?FileInputStream（“Skey_DH_prk.dat“）;
		objectInputStream?b2?=?new?objectInputStream（f2）;
		PrivateKey?prk?=?（PrivateKey）b2.readobject（）;
		
		//創建私鑰協定對象
		KeyAgreement?ka?=?KeyAgreement.getInstance（“DH“）;
		//用自己的私鑰初始化密鑰協定對象
		ka.init（prk）;?
		/*執行私鑰協定對象的doPhase（）方法，其在第一個參數中傳入對方公鑰*/
		ka.doPhase（pbk?true）;
		//生成共享信息
		?byte[]?sb?=?ka.generateSecret（）;??//生成共享秘密并在新的緩沖區中返回它
		?for（int?i?=?0?;?i?			?System.out.print（sb[i]+““）;
		?}
		?//創建密鑰
		@SuppressWarnings（“unused“）
		SecretKeySpec?k?=?new?SecretKeySpec（sb“DESede“）;
	}

}

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

?????文件????????232??2010-12-23?16:06??Diffle-Human\Diffle-Human\.classpath

?????文件????????388??2010-12-23?16:06??Diffle-Human\Diffle-Human\.project

?????文件???????1963??2010-12-25?23:09??Diffle-Human\Diffle-Human\bin\KeyAgree.class

?????文件???????2848??2010-12-25?23:09??Diffle-Human\Diffle-Human\bin\Key_DH.class

?????文件????????551??2010-12-23?17:02??Diffle-Human\Diffle-Human\Skey_DH_pbk.dat

?????文件????????489??2010-12-23?17:02??Diffle-Human\Diffle-Human\Skey_DH_prk.dat

?????文件???????1266??2010-12-23?17:40??Diffle-Human\Diffle-Human\src\KeyAgree.java

?????文件???????3167??2010-12-23?17:02??Diffle-Human\Diffle-Human\src\Key_DH.java

?????文件??????46592??2011-01-02?22:54??Diffle-Human\實習4—Diffle-Human.doc

?????目錄??????????0??2010-12-25?23:09??Diffle-Human\Diffle-Human\bin

?????目錄??????????0??2010-12-25?23:03??Diffle-Human\Diffle-Human\src

?????目錄??????????0??2010-12-25?23:03??Diffle-Human\Diffle-Human

?????目錄??????????0??2011-01-22?18:45??Diffle-Human

-----------?---------??----------?-----??----

????????????????57496????????????????????13