From 4728c1f514ba6f8af19cd03810f1367aedf1df0c Mon Sep 17 00:00:00 2001
From: liurunyu <lry9898@163.com>
Date: 星期四, 15 五月 2025 13:48:57 +0800
Subject: [PATCH] 功能码9A、21、22、23、26、86、87、93、A2、A3远程命令接口定义与后端编码实现
---
pipIrr-platform/pipIrr-web/pipIrr-web-wechat/src/main/java/com/dy/pipIrrWechat/util/AesUtil.java | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 50 insertions(+), 0 deletions(-)
diff --git a/pipIrr-platform/pipIrr-web/pipIrr-web-wechat/src/main/java/com/dy/pipIrrWechat/util/AesUtil.java b/pipIrr-platform/pipIrr-web/pipIrr-web-wechat/src/main/java/com/dy/pipIrrWechat/util/AesUtil.java
new file mode 100644
index 0000000..7a629c2
--- /dev/null
+++ b/pipIrr-platform/pipIrr-web/pipIrr-web-wechat/src/main/java/com/dy/pipIrrWechat/util/AesUtil.java
@@ -0,0 +1,50 @@
+package com.dy.pipIrrWechat.util;
+
+import javax.crypto.Cipher;
+import javax.crypto.NoSuchPaddingException;
+import javax.crypto.spec.GCMParameterSpec;
+import javax.crypto.spec.SecretKeySpec;
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+import java.security.InvalidAlgorithmParameterException;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.util.Base64;
+
+/**
+ * @author ZhuBaoMin
+ * @date 2024-07-15 10:18
+ * @LastEditTime 2024-07-15 10:18
+ * @Description
+ */
+public class AesUtil {
+ static final int KEY_LENGTH_BYTE = 32;
+ static final int TAG_LENGTH_BIT = 128;
+
+ /**
+ * 瑙ｅ瘑
+ * @param apiV3Key apiV3瀵嗛挜
+ * @param associatedData 闄勫姞鏁版嵁
+ * @param nonce 闅忔満涓�
+ * @param ciphertext 鏁版嵁瀵嗘枃
+ * @return 瑙ｅ瘑鍚庡瓧绗︿覆
+ * @throws GeneralSecurityException
+ * @throws IOException
+ */
+ public static String decryptToString(byte[] apiV3Key, byte[] associatedData, byte[] nonce, String ciphertext) throws GeneralSecurityException, IOException {
+ try {
+ Cipher cipher = Cipher.getInstance("AES/GCM/NoPadding");
+ SecretKeySpec key = new SecretKeySpec(apiV3Key, "AES");
+ GCMParameterSpec spec = new GCMParameterSpec(TAG_LENGTH_BIT, nonce);
+
+ cipher.init(Cipher.DECRYPT_MODE, key, spec);
+ cipher.updateAAD(associatedData);
+
+ return new String(cipher.doFinal(Base64.getDecoder().decode(ciphertext)), "utf-8");
+ } catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
+ throw new IllegalStateException(e);
+ } catch (InvalidKeyException | InvalidAlgorithmParameterException e) {
+ throw new IllegalArgumentException(e);
+ }
+ }
+}
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