package com.stylefeng.guns.modular.system.util.zhenglian;
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import com.stylefeng.guns.modular.system.util.SpringContextsUtil;
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import com.stylefeng.guns.modular.system.util.zhenglian.model.MessageBody;
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import com.zlpay.assist.encrypt.sm4.SM4Util;
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import com.zlpay.assist.sign.sm2.SM2Util;
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import lombok.extern.slf4j.Slf4j;
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/**
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* @author zhibing.pu
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* @Date 2025/7/28 14:25
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*/
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@Slf4j
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public class CallbackUtil {
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private static ZhengLianConfig zhengLianConfig = SpringContextsUtil.getBean(ZhengLianConfig.class).getZhengLianConfig();
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public static String callback(MessageBody messageBody) {
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try {
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String data = messageBody.getData();
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String sign = messageBody.getSign();
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String secret = messageBody.getSecret();
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//加密对称加密的秘钥
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// 获取公钥
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String publicKey = ZhengLianUtil.getPublicKey();
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// 验签
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boolean checkResult = SM2Util.verify(publicKey, zhengLianConfig.getEncrpNo(), sign, data);
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System.out.println("验签结果：" + checkResult);
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// 获取私钥
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String privateKey = ZhengLianUtil.getPrivateKey();
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// 解密对称秘钥
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String k = SM2Util.decrypt(privateKey, secret);
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System.out.println("对称秘钥：" + k);
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// 解密业务报文
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String backData = SM4Util.sm4EcbDecrypt(k, data);
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System.out.println("业务报文：" + backData);
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return backData;
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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}
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