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.zlpay.assist.sign.sm2.SM2Cert;
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import lombok.extern.slf4j.Slf4j;
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import org.apache.commons.lang.RandomStringUtils;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.security.cert.X509Certificate;
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import java.util.Base64;
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/**
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* @author zhibing.pu
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* @Date 2025/7/28 14:22
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*/
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@Slf4j
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public class ZhengLianUtil {
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private static ZhengLianConfig zhengLianConfig = SpringContextsUtil.getBean(ZhengLianConfig.class).getZhengLianConfig();
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/**
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* @Description: 从公钥证书获取公钥串
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* @return
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* @return String
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* @throws
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* @author: tsl
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* @date: 2019年4月19日 下午9:07:56
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*/
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public static String getPublicKey() {
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String publicKey = "";
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FileInputStream inputStream = null;
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try {
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inputStream = new FileInputStream(new File(zhengLianConfig.getCer()));
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X509Certificate publicCert = SM2Cert.getPublicCert(inputStream);
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publicKey = Base64.getEncoder().encodeToString(publicCert.getEncoded());
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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if (inputStream != null) {
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try {
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inputStream.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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return publicKey;
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}
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/**
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* @Description: 从私钥证书获取私钥传
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* @return
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* @return String
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* @throws
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* @author: tsl
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* @date: 2019年4月19日 下午9:08:00
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*/
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public static String getPrivateKey() {
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String privateKey = "";
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FileInputStream inputStream = null;
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try {
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inputStream = new FileInputStream(new File(zhengLianConfig.getSm2()));
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byte[] priBytes = SM2Cert.getPrivateCert(inputStream);
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privateKey = SM2Cert.getPrivateKey(zhengLianConfig.getPassword(), priBytes);
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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if (inputStream != null) {
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try {
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inputStream.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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return privateKey;
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}
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/**
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* @Description: 生成对称加密秘钥
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* @return String
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* @throws
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* @author: syuf
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* @date: 2018年11月8日 下午5:50:05
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*/
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public static String generateKey(int length) {
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return RandomStringUtils.randomAlphanumeric(length);
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}
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/**
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* @Description: 签名
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* @param data
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* @return String
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* @throws
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* @author: syuf
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* @date: 2018年11月15日 下午2:19:01
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*/
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public static String sign(String data) {
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try {
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// 获取私钥
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String privateKey = getPrivateKey();
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return com.zlpay.assist.sign.sm2.SM2Util.sign(privateKey, zhengLianConfig.getSignNo(), data);
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} catch (Exception e) {
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e.printStackTrace();
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}
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return "";
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}
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}
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