㈠ 求幫助：下面這段字元串先經過base64解碼再用3des解密後得到的數據 幫忙把執行的源代碼發出來 謝謝了在線
首先是加密方法
package logic;
import java.security.Key;
import java.security.Security;
import javax.crypto.Cipher;
import javax.crypto.SecretKeyFactory;
//import javax.crypto.SecretKey;
import javax.crypto.spec.DESedeKeySpec;
//import javax.crypto.spec.SecretKeySpec;
/*字元串 DESede(3DES) 加密*/
public class ThreeDes {
/**
* @param args在java中調用sun公司提供的3DES加密解密演算法時，需要使
* 用到$JAVA_HOME/jre/lib/目錄下如下的4個jar包：
*jce.jar
*security/US_export_policy.jar
*security/local_policy.jar
*ext/sunjce_provider.jar
*/
//加密密鑰
public final static byte[] keyBytes = {0x11, 0x22, 0x4F, 0x58,
(byte)0x88, 0x10, 0x40, 0x38, 0x28, 0x25, 0x79, 0x51,
(byte)0xCB,
(byte)0xDD, 0x55, 0x66, 0x77, 0x29, 0x74,
(byte)0x98, 0x30, 0x40, 0x36,
(byte)0xE2 };
//private static final String Algorithm = "DESede/ECB/PKCS5Padding"; //定義加密演算法,可用 DES,DESede,Blowfish
//keybyte為加密密鑰，長度為24位元組
//src為被加密的數據緩沖區（源）
public static byte[] encryptMode(byte[] keybyte,byte[] src){
try {
Key deskey = null;
DESedeKeySpec spec = new DESedeKeySpec(keybyte);
SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("DESede");
deskey = keyfactory.generateSecret(spec);
Cipher cipher = Cipher.getInstance("DESede" + "/ECB/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, deskey);
//生成密鑰
//SecretKey deskey = new SecretKeySpec(keybyte, Algorithm);
//加密
//Cipher c1 = Cipher.getInstance(Algorithm);
//c1.init(Cipher.ENCRYPT_MODE, deskey);
return cipher.doFinal(src);//在單一方面的加密或解密
} catch (java.security.NoSuchAlgorithmException e1) {
// TODO: handle exception
e1.printStackTrace();
}catch(javax.crypto.NoSuchPaddingException e2){
e2.printStackTrace();
}catch(java.lang.Exception e3){
e3.printStackTrace();
}
return null;
}
//keybyte為加密密鑰，長度為24位元組
//src為加密後的緩沖區
public static byte[] decryptMode(byte[] keybyte,byte[] src){
try {
Key deskey = null;
//獲取密鑰
DESedeKeySpec spec = new DESedeKeySpec(keybyte);
//加密演算法
SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("DESede");
//生成密碼
deskey = keyfactory.generateSecret(spec);
//加入模式和填充方法
Cipher cipher = Cipher.getInstance("DESede" + "/ECB/PKCS5Padding");
cipher.init(Cipher.DECRYPT_MODE, deskey);
//生成密鑰
//SecretKey deskey = new SecretKeySpec(keybyte, Algorithm);
//解密
//Cipher c1 = Cipher.getInstance(Algorithm);
//c1.init(Cipher.DECRYPT_MODE, deskey);
return cipher.doFinal(src);
} catch (java.security.NoSuchAlgorithmException e1) {
// TODO: handle exception
e1.printStackTrace();
}catch(javax.crypto.NoSuchPaddingException e2){
e2.printStackTrace();
}catch(java.lang.Exception e3){
e3.printStackTrace();
}
return null;
}
//轉換成十六進制字元串
public static String byte2Hex(byte[] b){
String hs="";
String stmp="";
for(int n=0; n<b.length; n++){
stmp = (java.lang.Integer.toHexString(b[n]& 0XFF));
if(stmp.length()==1){
hs = hs + "0" + stmp;
}else{
hs = hs + stmp;
}
if(n<b.length-1)hs=hs+":";
}
return hs.toUpperCase();
}
public static void main(String[] args) {
// TODO Auto-generated method stub
//添加新安全演算法,如果用JCE就要把它添加進去
Security.addProvider(new com.sun.crypto.provider.SunJCE());
//24位元組的密鑰
String szSrc = "This is a 3DES test. 測試";
System.out.println("加密前的字元串:" + szSrc);
byte[] encoded = encryptMode(keyBytes,szSrc.getBytes());
System.out.println("加密後的字元串:" + new String(encoded));
byte[] srcBytes = decryptMode(keyBytes,encoded);
System.out.println("解密後的字元串:" + (new String(srcBytes)));
}
}
調用加密方法後給他編碼 ~~~
byte[] encoded = ThreeDes.encryptMode(ThreeDes.keyBytes,body.getBytes());
//用 BASE64給密文編碼（要不然解密出錯）
BASE64Encoder enc = new BASE64Encoder();
String cipherString = enc.encode(encoded);
㈡ 啟動後,系統提示腳本錯誤.一會又說有惡意代碼 這是怎麼回事啊
[[email protected]的解答:]請掃描並毒並嘗試關閉一些外觀優化軟體,一些vbs等製作的病毒木馬會產生此提示,一些外觀優化補丁和軟體也會.
㈢ 求易語言洛克王國東哥源碼
不知道什麼意思...
㈣ 易語言如何批量獲取網頁的標題,關鍵詞,求源碼.謝謝
我也想要這源碼。有解決辦法的話發我一下！謝謝……郵箱：[email protected]