package com.ff.base.utils;

import com.ff.base.exception.base.BaseException;
import lombok.Data;

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import java.nio.charset.StandardCharsets;
import java.util.Base64;


/**
 * 解密有用
 *
 * @author shi
 * @date 2025/03/24
 */
public class DESEncryptUtils {

    /**
     * 给…解密
     *
     * @param inString  字符串中
     * @param secretKey 密钥
     * @return {@link String }
     * @throws Exception 例外
     */
    public static String DESEncrypt(String inString, String secretKey) {
        try {
            // 使用相同的密钥进行加密
            SecretKeySpec key = new SecretKeySpec(secretKey.getBytes(StandardCharsets.US_ASCII), "DES");

            // 使用DES加密算法
            Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding");
            cipher.init(Cipher.ENCRYPT_MODE, key);

            // 加密输入字符串
            byte[] encrypted = cipher.doFinal(inString.getBytes(StandardCharsets.UTF_8));

            // 返回Base64编码的密文
            return Base64.getEncoder().encodeToString(encrypted);
        } catch (Exception e) {
            throw new BaseException("加密失败");
        }

    }

}