package com.gkhy.safePlatform.account.utils;

import com.google.common.base.Charsets;
import com.google.common.hash.Hashing;

import java.util.Random;

/**
* @Description: 密码 盐 生成
* @date 2022/6/21 18:51
*/
public class PasswordUtil {


    /**
    * @Description: 编码加密
    */

    public static String SHA256Encode(String content) {
        return Hashing.sha256().newHasher().putString(content, Charsets.UTF_8).hash().toString();
    }


    /**
    * @Description:  密码判断  参数密码， 盐 和数据库密码
    */
    public static boolean match(String paramPassword, String salt, String dbPassword) {
        String makePassword = makePassword(paramPassword, salt);
        return dbPassword.equals(makePassword);
    }

    /**
    * @Description: 密码生成
    */

    public static String makePassword(String paramPassword, String salt) {
        String firstResult = SHA256Encode(paramPassword);
        return SHA256Encode(firstResult + salt);
    }


    /**
    * @Description: 盐生成
    */
    public static String makeSalt() {
        Random random = new Random();
        long l = random.nextInt(10) + System.nanoTime() + random.nextInt(10);
        return SHA256Encode(l + "");
    }

    public static void main(String[] args) {
        String r1 = SHA256Encode("r");
        String r = makePassword("123", r1);
        System.out.println(r1);
        System.out.println(r);
    }
}