package com.bcxin.ins.third.tyx.qianhai.util;

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

/**
 * 签名
 *
 * @author Administrator
 * @create 2023-02-09 14:25
 */
public class Encrypt {

    /**
     * 加密
     *
     * @param inputText
     * @return
     */
    public static String e(String inputText) {
        return md5(inputText);
    }

    /**
     * 二次加密，应该破解不了了吧？
     *
     * @param inputText
     * @return
     */
    public static String md5AndSha(String inputText) {
        return sha(md5(inputText));
    }

    /**
     * md5加密
     *
     * @param inputText
     * @return
     */
    public static String md5(String inputText) {
        return encrypt(inputText, "md5");
    }

    /**
     * sha加密
     *
     * @param inputText
     * @return
     */
    public static String sha(String inputText) {
        return encrypt(inputText, "sha-1");
    }

    /**
     * md5或者sha-1加密
     *
     * @param inputText
     *            要加密的内容
     * @param algorithmName
     *            加密算法名称：md5或者sha-1，不区分大小写
     * @return
     */
    private static String encrypt(String inputText, String algorithmName) {
        if (inputText == null || "".equals(inputText.trim())) {
            throw new IllegalArgumentException("请输入要加密的内容");
        }
        if (algorithmName == null || "".equals(algorithmName.trim())) {
            algorithmName = "md5";
        }
        String encryptText = null;
        try {
            MessageDigest m = MessageDigest.getInstance(algorithmName);
            m.update(inputText.getBytes("UTF8"));
            byte s[] = m.digest();
            // m.digest(inputText.getBytes("UTF8"));
            return hex(s);
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        return encryptText;
    }

    /**
     * 返回十六进制字符串
     *
     * @param arr
     * @return
     */
    private static String hex(byte[] arr) {
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < arr.length; ++i) {
            sb.append(Integer.toHexString((arr[i] & 0xFF) | 0x100).substring(1, 3));
        }
        return sb.toString();
    }

    public static void main(String sdf[]){
        String Str = "qhpmcip24BaoTest970220179313000124bao2016-12-05 10:25:420600092016-12-10 06:50:002016-12-10 09:50:00610113196610200535";
        System.out.println("明文："+Str);
        System.out.println("密文："+md5(Str));
    }
}
