/**
?*?@jdk版本:1.6
?*?@編碼時間:2010-3-20
?*/
package?com.mingrisoft.security;

import?java.io.File;
import?java.io.FileInputStream;
import?java.io.FileNotFoundException;
import?java.io.IOException;
import?java.security.InvalidKeyException;
import?java.security.KeyFactory;
import?java.security.NoSuchAlgorithmException;
import?java.security.PublicKey;
import?java.security.Signature;
import?java.security.SignatureException;
import?java.security.spec.InvalidKeySpecException;
import?java.security.spec.X509EncodedKeySpec;

/**
?*?@author?bwm
?*?
?*/
public?class?SingleDSAClientFile?{

	static?String?algorithm?=?“DSA“;

	static?String?signdataFile?=?“fileSignData.dat“;
	static?String?publickeyFile?=?“keyPublicData.dat“;

	/**
	?*?用數字簽名進行驗證
	?*?
	?*?@param?data
	?*?@return
	?*/
	public?boolean?verifySign（byte[]?data）?{

		byte[]?key?=?readFile（publickeyFile）;
		byte[]?sign?=?readFile（signdataFile）;

		X509EncodedKeySpec?keySpec?=?new?X509EncodedKeySpec（key）

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件?????????232??2010-12-17?09:48??.classpath
?????文件?????????379??2010-12-17?10:27??.project
?????文件??????????46??2011-01-28?14:24??fileSignData.dat
?????文件?????????335??2011-01-28?14:24??keyPrivateData.dat
?????文件?????????443??2011-01-28?14:24??keyPublicData.dat
?????文件?????????635??2010-12-17?09:47??.settings\org.eclipse.jdt.core.prefs
?????文件????????2889??2011-02-14?10:45??bin\com\mingrisoft\security\SingleDSAClientFile.class
?????文件????????4647??2011-02-14?10:45??bin\com\mingrisoft\security\SingleDSAServerFile.class
?????文件????????2586??2010-12-16?17:11??src\com\mingrisoft\security\SingleDSAClientFile.java
?????文件????????4210??2010-12-25?13:18??src\com\mingrisoft\security\SingleDSAServerFile.java