加密解密，脑袋都搞大了，大伙帮忙看看！__getInstance_import_KeyGenerator_keygen_desCipher_

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加密解密，脑袋都搞大了，大伙帮忙看看！

来源: 互联网发布时间：2015-06-05

本文导语: 下面是两个测试程序，（均是从网上找到的，^_^）。测试程序一： package encryption; /** * Title: * Description: * Copyright: Copyright (c) 2001 * Company: * @author * @version 1.0 */ import java.io.*; import java.math.BigInteg...

下面是两个测试程序，（均是从网上找到的，^_^）。
测试程序一：
package encryption;

/**
* Title:
* Description:
* Copyright:    Copyright (c) 2001
* Company:
* @author
* @version 1.0
*/
import java.io.*;
import java.math.BigInteger;
import java.security.*;
import java.security.spec.*;
import java.security.interfaces.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import javax.crypto.interfaces.*;

public class En1 {

    public En1() {

        KeyGenerator keygen;
        SecretKey desKey;
        Cipher desCipher;

        try{
            //DES,DESede,PBEWithMD5AndDES,Blowfish
            //Generating a Key
//            keygen = KeyGenerator.getInstance("DES");
//            keygen = KeyGenerator.getInstance("DESede");
            keygen = KeyGenerator.getInstance("Blowfish");

            desKey = keygen.generateKey();
            System.out.println(
                desKey.getEncoded().toString()
            );

            // Create the cipher
//            desCipher = Cipher.getInstance("DES/ECB/PKCS5Padding");
//            desCipher = Cipher.getInstance("DESede");
            desCipher = Cipher.getInstance("Blowfish");

            // Our cleartext
            byte[] cleartext = "This is just an example:邢战军".getBytes();
            StringBuffer StrBuf = new StringBuffer();
            for(int i=0,j=cleartext.length;i