㈠ 求帮助：下面这段字符串先经过base64解码再用3des解密后得到的数据 帮忙把执行的源代码发出来 谢谢了在线
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;
/*字符串 DESede(3DES) 加密*/
public class ThreeDes {
/**
* @param args在java中调用sun公司提供的3DES加密解密算法时，需要使
* 用到$JAVA_HOME/jre/lib/目录下如下的4个jar包：
*jce.jar
*security/US_export_policy.jar
*security/local_policy.jar
*ext/sunjce_provider.jar
*/
//加密密钥
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"; //定义加密算法,可用 DES,DESede,Blowfish
//keybyte为加密密钥，长度为24字节
//src为被加密的数据缓冲区（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);
//生成密钥
//SecretKey deskey = new SecretKeySpec(keybyte, Algorithm);
//加密
//Cipher c1 = Cipher.getInstance(Algorithm);
//c1.init(Cipher.ENCRYPT_MODE, deskey);
return cipher.doFinal(src);//在单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为加密密钥，长度为24字节
//src为加密后的缓冲区
public static byte[] decryptMode(byte[] keybyte,byte[] src){
try {
Key deskey = null;
//获取密钥
DESedeKeySpec spec = new DESedeKeySpec(keybyte);
//加密算法
SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("DESede");
//生成密码
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);
//生成密钥
//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;
}
//转换成十六进制字符串
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
//添加新安全算法,如果用JCE就要把它添加进去
Security.addProvider(new com.sun.crypto.provider.SunJCE());
//24字节的密钥
String szSrc = "This is a 3DES test. 测试";
System.out.println("加密前的字符串:" + szSrc);
byte[] encoded = encryptMode(keyBytes,szSrc.getBytes());
System.out.println("加密后的字符串:" + new String(encoded));
byte[] srcBytes = decryptMode(keyBytes,encoded);
System.out.println("解密后的字符串:" + (new String(srcBytes)));
}
}
调用加密方法后给他编码 ~~~
byte[] encoded = ThreeDes.encryptMode(ThreeDes.keyBytes,body.getBytes());
//用 BASE64给密文编码（要不然解密出错）
BASE64Encoder enc = new BASE64Encoder();
String cipherString = enc.encode(encoded);
㈡ 启动后,系统提示脚本错误.一会又说有恶意代码 这是怎么回事啊
[[email protected]的解答:]请扫描并毒并尝试关闭一些外观优化软件,一些vbs等制作的病毒木马会产生此提示,一些外观优化补丁和软件也会.
㈢ 求易语言洛克王国东哥源码
不知道什么意思...
㈣ 易语言如何批量获取网页的标题,关键词,求源码.谢谢
我也想要这源码。有解决办法的话发我一下！谢谢……邮箱：[email protected]