From 5d7b65670282a4fad015e37d567cfa171b162052 Mon Sep 17 00:00:00 2001
From: huliguo <2023611923@qq.com>
Date: 星期二, 20 五月 2025 12:25:19 +0800
Subject: [PATCH] 基础代码
---
pt-errand/src/main/java/com/ruoyi/errand/utils/AES.java | 72 ++++++++++++++++++++++++++++++++++++
1 files changed, 72 insertions(+), 0 deletions(-)
diff --git a/pt-errand/src/main/java/com/ruoyi/errand/utils/AES.java b/pt-errand/src/main/java/com/ruoyi/errand/utils/AES.java
new file mode 100644
index 0000000..b18277c
--- /dev/null
+++ b/pt-errand/src/main/java/com/ruoyi/errand/utils/AES.java
@@ -0,0 +1,72 @@
+package com.ruoyi.errand.utils;
+
+import org.bouncycastle.jce.provider.BouncyCastleProvider;
+
+import javax.crypto.BadPaddingException;
+import javax.crypto.Cipher;
+import javax.crypto.IllegalBlockSizeException;
+import javax.crypto.NoSuchPaddingException;
+import javax.crypto.spec.IvParameterSpec;
+import javax.crypto.spec.SecretKeySpec;
+import java.security.*;
+
+/**
+* AES加密
+* @author pzb
+* @Date 2021/12/3 15:43
+*/
+public class AES {
+
+ public static boolean initialized = false;
+
+ /**
+ * AES解密
+ *
+ * @param content
+ * 密文
+ * @return
+ * @throws InvalidAlgorithmParameterException
+ * @throws NoSuchProviderException
+ */
+ public byte[] decrypt(byte[] content, byte[] keyByte, byte[] ivByte) throws InvalidAlgorithmParameterException {
+ initialize();
+ try {
+ Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7Padding");
+ Key sKeySpec = new SecretKeySpec(keyByte, "AES");
+ cipher.init(Cipher.DECRYPT_MODE, sKeySpec, generateIV(ivByte));// 初始化
+ byte[] result = cipher.doFinal(content);
+ return result;
+ } catch (NoSuchAlgorithmException e) {
+ e.printStackTrace();
+ } catch (NoSuchPaddingException e) {
+ e.printStackTrace();
+ } catch (InvalidKeyException e) {
+ e.printStackTrace();
+ } catch (IllegalBlockSizeException e) {
+ e.printStackTrace();
+ } catch (BadPaddingException e) {
+ e.printStackTrace();
+ } catch (NoSuchProviderException e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ } catch (Exception e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ }
+ return null;
+ }
+
+ public static void initialize() {
+ if (initialized)
+ return;
+ Security.addProvider(new BouncyCastleProvider());
+ initialized = true;
+ }
+
+ // 生成iv
+ public static AlgorithmParameters generateIV(byte[] iv) throws Exception {
+ AlgorithmParameters params = AlgorithmParameters.getInstance("AES");
+ params.init(new IvParameterSpec(iv));
+ return params;
+ }
+}
--
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