init: 简单的验证授权

nl-verify-check-test/src/main/java/org/nl/GenerateAuthCode.java

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+package org.nl;
+
+import javax.crypto.Cipher;
+import java.security.KeyFactory;
+import java.security.PublicKey;
+import java.security.spec.X509EncodedKeySpec;
+import java.util.Base64;
+
+/**
+ * @Author: lyd
+ * @Date: 2025/8/13
+ */
+public class GenerateAuthCode {
+    public static void main(String[] args) throws Exception {
+        String publicKeyBase64 = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAgW1kN/JmXZjl9+/Zsl/zRZ/6hSHj95G6IA4lpRrXNSTbeng0rDhEoVDY96PCaOUGnqcqOo+LLT+FqZggFBbHcjqHc1NEetD+4BTkdTiHSsskNjkvSdTHTV0UbpLHw9VlRvms6AfobkKNg+dm3F0o57tVA0Q61zd112YIdS9lf2g4PhovUACLDAx7TetsyrB7OLZQpR7dCjkUnQMTfUYz81BTWF38Vt3TUzPc35baDNm4HlHxutReRDIqZABFYw2+Pj7tgbDVGpo8vOXig1gPDcQ1Orrg5MSzYi8eSoqS8TkfhDOP3DqkcB3RI/JmraRpagUjnzsV3ekoeV5lUrQY7QIDAQAB"; // 从生成器中获取
+        String expirationDate = "2025-12-31"; // 到期时间原文
+
+        // 还原公钥
+        byte[] publicKeyBytes = Base64.getDecoder().decode(publicKeyBase64);
+        X509EncodedKeySpec keySpec = new X509EncodedKeySpec(publicKeyBytes);
+        KeyFactory keyFactory = KeyFactory.getInstance("RSA");
+        PublicKey publicKey = keyFactory.generatePublic(keySpec);
+
+        // 加密
+//        Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding"); // 标准填充模式
+        Cipher cipher = Cipher.getInstance("RSA"); // 标准填充模式
+        cipher.init(Cipher.ENCRYPT_MODE, publicKey);
+        byte[] encrypted = cipher.doFinal(expirationDate.getBytes("UTF-8"));
+        String authCode = Base64.getEncoder().encodeToString(encrypted);
+
+        System.out.println("授权码: " + authCode);
+    }
+}

nl-verify-check-test/src/main/java/org/nl/Main.java

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+package org.nl;
+
+/**
+ * @Author: lyd
+ * @Date: ${DATE}
+ */
+public class Main {
+    public static void main(String[] args) {
+        System.out.println("Hello world!");
+    }
+}

nl-verify-check-test/src/main/java/org/nl/RSAKeyGenerator.java

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+package org.nl;
+
+import java.security.*;
+import java.util.Base64;
+
+/**
+ * @Author: lyd
+ * @Date: 2025/8/13
+ */
+public class RSAKeyGenerator {
+    public static void main(String[] args) {
+        try {
+            KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA");
+            keyGen.initialize(2048); // 推荐 2048 位密钥，安全级别高
+            KeyPair pair = keyGen.generateKeyPair();
+            PrivateKey privateKey = pair.getPrivate();
+            PublicKey publicKey = pair.getPublic();
+
+            // Base64 编码，便于存储和传输
+            String privateKeyBase64 = Base64.getEncoder().encodeToString(privateKey.getEncoded());
+            String publicKeyBase64 = Base64.getEncoder().encodeToString(publicKey.getEncoded());
+
+            System.out.println("Private Key (Base64): " + privateKeyBase64);
+            System.out.println("Public Key (Base64): " + publicKeyBase64);
+        } catch (NoSuchAlgorithmException e) {
+            e.printStackTrace();
+        }
+    }
+}