shiro的使用2 灵活使用shiro的密码服务模块

package com.util;
import com.domain.User;
import com.google.common.base.Preconditions;
import com.google.common.base.Strings;
import com.sun.crypto.provider.AESKeyGenerator;
import org.apache.shiro.codec.Base64;
import org.apache.shiro.codec.CodecSupport;
import org.apache.shiro.codec.H64;
import org.apache.shiro.codec.Hex;
import org.apache.shiro.crypto.AesCipherService;
import org.apache.shiro.crypto.SecureRandomNumberGenerator;
import org.apache.shiro.crypto.hash.Md5Hash;
import java.security.Key;
/**
* User： cutter.li
* Date： 2014/6/27 0027
* Time： 16:49
* 备注： shiro进行加密解密的工具类封装
*/
public final class EndecryptUtils {
    /**
     * base64进制加密
     *
     * @param password
     * @return
     */
    public static String encrytBase64(String password) {
        Preconditions.checkArgument(!Strings.isNullOrEmpty(password), "不能为空");
        byte[] bytes = password.getBytes();
        return Base64.encodeToString(bytes);
    }
    /**
     * base64进制解密
     * @param cipherText
     * @return
     */
    public static String decryptBase64(String cipherText) {
        Preconditions.checkArgument(!Strings.isNullOrEmpty(cipherText), "消息摘要不能为空");
        return Base64.decodeToString(cipherText);
    }
    /**
     * 16进制加密
     *
     * @param password
     * @return
     */
    public static String encrytHex(String password) {
        Preconditions.checkArgument(!Strings.isNullOrEmpty(password), "不能为空");
        byte[] bytes = password.getBytes();
        return Hex.encodeToString(bytes);
    }
    /**
     * 16进制解密
     * @param cipherText
     * @return
     */
    public static String decryptHex(String cipherText) {
        Preconditions.checkArgument(!Strings.isNullOrEmpty(cipherText), "消息摘要不能为空");
        return new String(Hex.decode(cipherText));
    }
    public static String generateKey()
    {
        AesCipherService aesCipherService=new AesCipherService();
        Key key=aesCipherService.generateNewKey();
        return Base64.encodeToString(key.getEncoded());
    }
    /**
     * 对密码进行md5加密,并返回密文和salt，包含在User对象中
     * @param username 用户名
     * @param password 密码
     * @return 密文和salt
     */
    public static User md5Password(String username,String password){
        Preconditions.checkArgument(!Strings.isNullOrEmpty(username),"username不能为空");
        Preconditions.checkArgument(!Strings.isNullOrEmpty(password),"password不能为空");
        SecureRandomNumberGenerator secureRandomNumberGenerator=new SecureRandomNumberGenerator();
        String salt= secureRandomNumberGenerator.nextBytes().toHex();
        //组合username,两次迭代，对密码进行加密
        String password_cipherText= new Md5Hash(password,username+salt,2).toBase64();
        User user=new User();
        user.setPassword(password_cipherText);
        user.setSalt(salt);
        user.setUsername(username);
        return user;
    }
    public static void main(String[] args) {
        String password = "admin";
        String cipherText = encrytHex(password);
        System.out.println(password + "hex加密之后的密文是：" + cipherText);
        String decrptPassword=decryptHex(cipherText);
        System.out.println(cipherText + "hex解密之后的密码是：" + decrptPassword);
        String cipherText_base64 = encrytBase64(password);
        System.out.println(password + "base64加密之后的密文是：" + cipherText_base64);
        String decrptPassword_base64=decryptBase64(cipherText_base64);
        System.out.println(cipherText_base64 + "base64解密之后的密码是：" + decrptPassword_base64);
        String h64=  H64.encodeToString(password.getBytes());
        System.out.println(h64);
        String salt="7road";
        String cipherText_md5= new Md5Hash(password,salt,4).toHex();
        System.out.println(password+"通过md5加密之后的密文是："+cipherText_md5);
        System.out.println(generateKey());
        System.out.println("==========================================================");
        AesCipherService aesCipherService=new AesCipherService();
        aesCipherService.setKeySize(128);
        Key key=aesCipherService.generateNewKey();
        String aes_cipherText= aesCipherService.encrypt(password.getBytes(),key.getEncoded()).toHex();
        System.out.println(password+" aes加密的密文是："+aes_cipherText);
        String aes_mingwen=new String(aesCipherService.decrypt(Hex.decode(aes_cipherText),key.getEncoded()).getBytes());
        System.out.println(aes_cipherText+" aes解密的明文是："+aes_mingwen);
    }
}