Diffle-Human密钥交换（信息安全）--java版本

摘要：转载请注明初始化为其指定参数转载请注明转载请注明用自己的私钥初始化秘药协定对象

package hao.ning;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.math.BigInteger;
import java.security.InvalidAlgorithmParameterException;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.NoSuchAlgorithmException;
import java.security.PrivateKey;
import java.security.PublicKey;

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

public class Key_DH {

  private final static byte skip1024ModulusBytes[]={
          (byte)0xF4, (byte)0x88, (byte)0xFD, (byte)0x58,
            (byte)0x4E, (byte)0x49, (byte)0xDB, (byte)0xCD,
            (byte)0x20, (byte)0xB4, (byte)0x9D, (byte)0xE4,
            (byte)0x91, (byte)0x07, (byte)0x36, (byte)0x6B,
            (byte)0x33, (byte)0x6C, (byte)0x38, (byte)0x0D,
            (byte)0x45, (byte)0x1D, (byte)0x0F, (byte)0x7C,
            (byte)0x88, (byte)0xB3, (byte)0x1C, (byte)0x7C,
            (byte)0x5B, (byte)0x2D, (byte)0x8E, (byte)0xF6,
            (byte)0xF3, (byte)0xC9, (byte)0x23, (byte)0xC0,
            (byte)0x43, (byte)0xF0, (byte)0xA5, (byte)0x5B,
            (byte)0x18, (byte)0x8D, (byte)0x8E, (byte)0xBB,
            (byte)0x55, (byte)0x8C, (byte)0xB8, (byte)0x5D,
            (byte)0x38, (byte)0xD3, (byte)0x34, (byte)0xFD,
            (byte)0x7C, (byte)0x17, (byte)0x57, (byte)0x43,
            (byte)0xA3, (byte)0x1D, (byte)0x18, (byte)0x6C,
            (byte)0xDE, (byte)0x33, (byte)0x21, (byte)0x2C,
            (byte)0xB5, (byte)0x2A, (byte)0xFF, (byte)0x3C,
            (byte)0xE1, (byte)0xB1, (byte)0x29, (byte)0x40,
            (byte)0x18, (byte)0x11, (byte)0x8D, (byte)0x7C,
            (byte)0x84, (byte)0xA7, (byte)0x0A, (byte)0x72,
            (byte)0xD6, (byte)0x86, (byte)0xC4, (byte)0x03,
            (byte)0x19, (byte)0xC8, (byte)0x07, (byte)0x29,
            (byte)0x7A, (byte)0xCA, (byte)0x95, (byte)0x0C,
            (byte)0xD9, (byte)0x96, (byte)0x9F, (byte)0xAB,
            (byte)0xD0, (byte)0x0A, (byte)0x50, (byte)0x9B,
            (byte)0x02, (byte)0x46, (byte)0xD3, (byte)0x08,
            (byte)0x3D, (byte)0x66, (byte)0xA4, (byte)0x5D,
            (byte)0x41, (byte)0x9F, (byte)0x9C, (byte)0x7C,
            (byte)0xBD, (byte)0x89, (byte)0x4B, (byte)0x22,
            (byte)0x19, (byte)0x26, (byte)0xBA, (byte)0xAB,
            (byte)0xA2, (byte)0x5E, (byte)0xC3, (byte)0x55,
            (byte)0xE9, (byte)0x2F, (byte)0x78, (byte)0xC7

  };
  

// The skip 1024 bit modulus

   /*转载请注明：www.panmum.com*/
  private static final BigInteger skip1024Modulus=new BigInteger(1,skip1024ModulusBytes);
  private static final BigInteger skip1024Base=BigInteger.valueOf(2);
  
  DHParameterSpec DHP=new DHParameterSpec(skip1024Modulus,skip1024Base);
  byte []sb;
  
  public void makeKey(){
    KeyPairGenerator kpg = null;
    try {
        kpg = KeyPairGenerator.getInstance("DH");
    } 
    catch (NoSuchAlgorithmException e1) {
        
        e1.printStackTrace();
    }
      try {
        kpg.initialize(DHP);//初始化"DH",为其指定参数
    } 
    catch (InvalidAlgorithmParameterException e) {
        
        e.printStackTrace();
    }
     KeyPair kp=kpg.generateKeyPair();
     PublicKey pbk=kp.getPublic();
     PrivateKey prk=kp.getPrivate();
     
    try {
        FileOutputStream f1 = new FileOutputStream("pbk.dat");
        ObjectOutputStream out1 = null;
        
        try {
            out1 = new ObjectOutputStream(f1);
        } 
        catch (IOException e) {
            e.printStackTrace();
        }
        try {
            out1.writeObject(pbk);
        } 
        catch (IOException e) {
            e.printStackTrace();
        }
    } 
    /*转载请注明：www.tengxunyun.me*/
    catch (FileNotFoundException e) {
        e.printStackTrace();
    }
    
    try {
        FileOutputStream f2= new FileOutputStream("prk.dat");
        ObjectOutputStream out2 = null;
        
        try {
            out2 = new ObjectOutputStream(f2);
        } 
        catch (IOException e) {
            e.printStackTrace();
        }
        try {
            out2.writeObject(prk);
        } 
        catch (IOException e) {
            e.printStackTrace();
        }
    } 
    
    catch (FileNotFoundException e) {
        e.printStackTrace();
    }
}
  
public void shareKey(){
    PublicKey pbk=null;
    PrivateKey prk = null;
    try {
        FileInputStream f1= new FileInputStream("pbk.dat");
        ObjectInputStream in1 = null;
        
        try {
            in1 = new ObjectInputStream(f1);
        } 
        catch (IOException e) {
            e.printStackTrace();
        }
        /*转载请注明：www.quzhuanpan.com*/
        try {
            try {
                pbk=(PublicKey)in1.readObject();
            }
            catch (ClassNotFoundException e) {
                
                e.printStackTrace();
            }
        } 
        catch (IOException e) {
            e.printStackTrace();
        }
    } 
    catch (FileNotFoundException e) {
        e.printStackTrace();
    }
    
    try {
        FileInputStream f2= new FileInputStream("prk.dat");
        ObjectInputStream in2 = null;
        
        try {
            in2 = new ObjectInputStream(f2);
        } 
        catch (IOException e) {
            e.printStackTrace();
        }
        try {
            try {
                prk=(PrivateKey)in2.readObject();
            }
            catch (ClassNotFoundException e) {
                
                e.printStackTrace();
            }
        } 
        catch (IOException e) {
            e.printStackTrace();
        }
    } 
    catch (FileNotFoundException e) {
        e.printStackTrace();
    }
    
    try {
        KeyAgreement ka=KeyAgreement.getInstance("DH");
        ka.init(prk);//用自己的私钥初始化秘药协定对象
        ka.doPhase(pbk, true);
        sb=ka.generateSecret();
        SecretKeySpec k=new SecretKeySpec(sb,"DESede");
    } 
    catch (Exception e) {
        
        e.printStackTrace();
    }
}

public void printShareInformation(){
    System.out.println("Share Information:");
    for(int i=0;i
}
package hao.ning;
public class Main {
public static void main(String args[]){
    Key_DH k_dh=new Key_DH();
    k_dh.makeKey();
    k_dh.shareKey();
    k_dh.printShareInformation();
}

}