package com.ruoyi.common.utils;
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import cn.hutool.core.util.CharsetUtil;
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import cn.hutool.crypto.SmUtil;
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import cn.hutool.crypto.symmetric.SymmetricCrypto;
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import com.alibaba.fastjson2.JSON;
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import com.alibaba.fastjson2.JSONObject;
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/**
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* @Author 国密4工具类
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* @Description 数据加密解密
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**/
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public class Sm4Utils {
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// 示例密钥，实际应用中应使用安全的方式生成和存储密钥
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private static final String KEY = "2022lab02ora12to";
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/**
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* sm4数据加密
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* @param params 参数信息
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* @return 加密后的值
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*/
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public static String sm4EncryptUtil(String params){
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SymmetricCrypto sm4 = SmUtil.sm4(KEY.getBytes());
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return sm4.encryptHex(params);
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}
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/**
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* sm4数据解密
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* @param encryptContext 加密的内容
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* @return 解密后的值
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*/
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public static String sm4DecryptUtil(String encryptContext){
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SymmetricCrypto sm4 = SmUtil.sm4(KEY.getBytes());
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return sm4.decryptStr(encryptContext, CharsetUtil.CHARSET_UTF_8);
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}
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/**
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* 测试方法，测试完要记得删除掉
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*/
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public static void main(String[] args) {
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// 自定义秘钥
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String secretKey = "csdn1024CSDN1024";
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JSONObject jsonObject = new JSONObject();
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jsonObject.put("name", "csdn");
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jsonObject.put("desc","1024程序员节");
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String strParams = JSON.toJSONString(jsonObject);
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System.out.println(String.format("明文参数: %s", strParams));
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String encryptContext = sm4EncryptUtil(strParams);
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System.out.println(String.format("加密后的值: %s", encryptContext));
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String decryptInfo = sm4DecryptUtil("d2f1da26d73f31d8f66ea64b23beebe014345f504ca516579dce993e4a527b48bc242f17941c7cb6d3eeb60bfe6175a51dafb387fa67a655fb18084acf6f68d149b14b6b9bb0063a7714ae24df78e064250b7bcd7847a719a69328ffaaa2d3add6d002b44fcc4610f3661f7611031cd410325c8391a7227ded9f6c4ec8d8a9908ae19c93c4fb2a16501738055acbea0925500bf691703c2ad4e1b172679d38da");
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System.out.println(String.format("解密后的信息: %s", decryptInfo));
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}
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}
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