package com.doumee.core.utils;

import org.springframework.util.DigestUtils;

import java.util.Random;

/**
 * 安全处理工具类
 * @author Eva.Caesar Liu
 * @date 2023/02/14 11:14
 */
public class Secure {

    /**
     * 加密密码
     * @param password 密码
     * @param salt 密码盐
     *
     * @return String
     */
    public String encryptPassword(String password, String salt) {
        return DigestUtils.md5DigestAsHex((password + salt).getBytes());
    }

    /**
     * 随机生成8位密码盐
     *
     * @return
     */
    public String getRandomSalt() {
        char[] chars = ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" +
                "1234567890").toCharArray();
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < 4; i++) {
            //Random().nextInt()返回值为[0,n)
            char aChar = chars[new Random().nextInt(chars.length)];
            sb.append(aChar);
        }
        return sb.toString();
    }
}