JAVA 常用加密方法

1.Base64
  加密：org.apache.commons.codec.binary.Base64.encodeBase64(byte[] binaryData)
  解密：org.apache.commons.codec.binary.Base64.decodeBase64(byte[] base64Data)
2.Md5
  加密：org.apache.commons.codec.digest.md5Hex(byte[] data)
  解密：无
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 {
//验证用密钥
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"; //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）
private static final String DES_EDE_CBC = "DESede/CBC/NoPadding"; //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）
private static final String DES_CBC = "DES/CBC/NoPadding";
private static final String DES_ECB = "DES/ECB/PKCS5Padding";
/**
* 使用DES_ECB方法进行加密
* @param content 需加密内容
* @param key 加密的密钥
* @param mode 加密还是解密