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1.Base64
  ¼ÓÃÜ£ºorg.apache.commons.codec.binary.Base64.encodeBase64(byte[] binaryData)
  ½âÃÜ£ºorg.apache.commons.codec.binary.Base64.decodeBase64(byte[] base64Data)
2.Md5
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3.DES£¨des-ecb,3des,des-cbc,cbc-mac£©
import java.io.ByteArrayOutputStream;
import java.security.SecureRandom;
import java.util.Arrays;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESKeySpec;
import javax.crypto.spec.DESedeKeySpec;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import org.bouncycastle.crypto.BlockCipher;
import org.bouncycastle.crypto.Mac;
import org.bouncycastle.crypto.engines.DESEngine;
import org.bouncycastle.crypto.macs.CBCBlockCipherMac;
import org.bouncycastle.crypto.params.KeyParameter;
import com.alibaba.common.lang.StringUtil;
import com.huateng.commons.lang.convert.HexUtils;
public class ShfftDes {
//ÑéÖ¤ÓÃÃÜÔ¿
private byte[] key = "000000000000000000000000".getBytes();
// private byte[] key = Hex.decode("00000000");
private byte[] ivs = new byte[] { 0, 0, 0, 0, 0, 0, 0, 0 };
private static final String DES_EDE = "DESede/ECB/NoPadding"; //¶¨Òå ¼ÓÃÜËã·¨,¿ÉÓà DES,DESede,Blowfish //keybyteΪ¼ÓÃÜÃÜÔ¿£¬³¤¶ÈΪ24×Ö½Ú //srcΪ±»¼ÓÃܵÄÊý¾Ý»º³åÇø£¨Ô´£©
private static final String DES_EDE_CBC = "DESede/CBC/NoPadding"; //¶¨Òå ¼ÓÃÜËã·¨,¿ÉÓà DES,DESede,Blowfish //keybyteΪ¼ÓÃÜÃÜÔ¿£¬³¤¶ÈΪ24×Ö½Ú //srcΪ±»¼ÓÃܵÄÊý¾Ý»º³åÇø£¨Ô´£©
private static final String DES_CBC = "DES/CBC/NoPadding";
private static final String DES_ECB = "DES/ECB/PKCS5Padding";
/**
* ʹÓÃDES_ECB·½·¨½øÐмÓÃÜ
* @param content Ðè¼ÓÃÜÄÚÈÝ
* @param key ¼ÓÃܵÄÃÜÔ¿
* @param mode ¼ÓÃÜ»¹ÊǽâÃÜ


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Oracle + Sun: Java Strategy
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import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.nio.ByteBuffer;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.ServerSocketChannel;
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