From c18ec3846c8483975de2224c1ecac9470e9b2804 Mon Sep 17 00:00:00 2001
From: puzhibing <393733352@qq.com>
Date: 星期三, 16 八月 2023 19:21:36 +0800
Subject: [PATCH] 同步代码
---
management/guns-admin/src/main/java/com/stylefeng/guns/modular/system/util/MallBook/util/RSASignature.java | 118 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 118 insertions(+), 0 deletions(-)
diff --git a/management/guns-admin/src/main/java/com/stylefeng/guns/modular/system/util/MallBook/util/RSASignature.java b/management/guns-admin/src/main/java/com/stylefeng/guns/modular/system/util/MallBook/util/RSASignature.java
new file mode 100644
index 0000000..d927439
--- /dev/null
+++ b/management/guns-admin/src/main/java/com/stylefeng/guns/modular/system/util/MallBook/util/RSASignature.java
@@ -0,0 +1,118 @@
+package com.stylefeng.guns.modular.system.util.MallBook.util;
+
+
+import com.stylefeng.guns.modular.system.util.MallBook.config.ChannelConfig;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+import java.security.KeyFactory;
+import java.security.PrivateKey;
+import java.security.PublicKey;
+import java.security.spec.PKCS8EncodedKeySpec;
+import java.security.spec.X509EncodedKeySpec;
+
+/**
+ * @author RSA签名验签类
+ */
+public class RSASignature {
+
+ public static Logger logger = LoggerFactory.getLogger(RSASignature.class);
+
+ /**
+ * 签名算法
+ */
+ public static final String SIGN_ALGORITHMS = "SHA1WithRSA";
+
+
+ /**
+ * 商户平台私钥签名
+ *
+ * @param content
+ * @return
+ */
+ public static String sign(String content) {
+ try {
+ String privateKey = ChannelConfig.merchantPrivateKey;
+ PKCS8EncodedKeySpec priPKCS8 = new PKCS8EncodedKeySpec(Base64.decode(privateKey));
+ KeyFactory keyf = KeyFactory.getInstance("RSA");
+ PrivateKey priKey = keyf.generatePrivate(priPKCS8);
+ java.security.Signature signature = java.security.Signature.getInstance(SIGN_ALGORITHMS);
+ signature.initSign(priKey);
+ signature.update(content.getBytes());
+ byte[] signed = signature.sign();
+ return Base64.encode(signed);
+ } catch (Exception e) {
+ logger.error("签名失败{}", e);
+ }
+ return null;
+ }
+
+
+ /**
+ * 读取证书
+ *
+ * @param filePath 证书文件路径
+ */
+ public static String loadKey(String filePath) throws Exception {
+ try (BufferedReader br = new BufferedReader(new FileReader(filePath))) {
+ String readLine;
+ StringBuilder sb = new StringBuilder();
+ while ((readLine = br.readLine()) != null) {
+ sb.append(readLine);
+ }
+ return sb.toString();
+ } catch (IOException e) {
+ throw new Exception("私钥数据读取错误");
+ } catch (NullPointerException e) {
+ throw new Exception("私钥输入流为空");
+ }
+ }
+
+
+ /**
+ * mallbook公钥验签
+ *
+ * @param content 待签名数据
+ * @param sign 签名值
+ * @return false 验签失败 true 成功
+ */
+ public static boolean validate(String content, String sign) {
+ boolean verify = false;
+ try {
+ String publicKey = ChannelConfig.mallBookPublicKey;
+ verify = RSASignature.doCheck(content, sign, publicKey, "utf-8");
+ } catch (Exception e) {
+ logger.error("验签失败：{}", e);
+ }
+ return verify;
+ }
+
+
+ /**
+ * RSA验签
+ *
+ * @param content 待签名数据
+ * @param sign 签名值
+ * @param publicKey 分配给开发商公钥
+ * @param encode 字符集编码
+ * @return 布尔值
+ */
+ public static boolean doCheck(String content, String sign, String publicKey, String encode) {
+ try {
+ KeyFactory keyFactory = KeyFactory.getInstance("RSA");
+ byte[] encodedKey = Base64.decode(publicKey);
+ PublicKey pubKey = keyFactory.generatePublic(new X509EncodedKeySpec(encodedKey));
+ java.security.Signature signature = java.security.Signature.getInstance(SIGN_ALGORITHMS);
+ signature.initVerify(pubKey);
+ signature.update(content.getBytes(encode));
+ return signature.verify(Base64.decode(sign));
+ } catch (Exception e) {
+ logger.error("验签失败{}", e);
+ }
+ return false;
+ }
+
+}
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