From 86df207c37502cce1b2043e1c7c0486459eef1d6 Mon Sep 17 00:00:00 2001
From: mitao <2763622819@qq.com>
Date: 星期四, 13 三月 2025 19:58:45 +0800
Subject: [PATCH] 党员、诉求评论基础代码
---
springcloud_k8s_panzhihuazhihuishequ/common/src/main/java/com/panzhihua/common/utlis/AES.java | 174 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 174 insertions(+), 0 deletions(-)
diff --git a/springcloud_k8s_panzhihuazhihuishequ/common/src/main/java/com/panzhihua/common/utlis/AES.java b/springcloud_k8s_panzhihuazhihuishequ/common/src/main/java/com/panzhihua/common/utlis/AES.java
new file mode 100644
index 0000000..f1f4374
--- /dev/null
+++ b/springcloud_k8s_panzhihuazhihuishequ/common/src/main/java/com/panzhihua/common/utlis/AES.java
@@ -0,0 +1,174 @@
+package com.panzhihua.common.utlis;
+
+import java.io.UnsupportedEncodingException;
+import java.nio.charset.StandardCharsets;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.security.SecureRandom;
+
+import javax.crypto.*;
+import javax.crypto.spec.SecretKeySpec;
+
+public class AES {
+ /**
+ * 加密
+ *
+ * @param content
+ * 需要加密的内容
+ * @param password
+ * 加密密码
+ * @return
+ */
+ public static byte[] encrypt(String content, String password) {
+ try {
+ KeyGenerator kgen = KeyGenerator.getInstance("AES");
+
+ SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG");
+ secureRandom.setSeed(password.getBytes());
+ kgen.init(128, secureRandom);
+
+ SecretKey secretKey = kgen.generateKey();
+ byte[] enCodeFormat = secretKey.getEncoded();
+ SecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES");
+ Cipher cipher = Cipher.getInstance("AES");// 创建密码器
+ byte[] byteContent = content.getBytes(StandardCharsets.UTF_8);
+ cipher.init(Cipher.ENCRYPT_MODE, key);// 初始化
+ byte[] result = cipher.doFinal(byteContent);
+ return result; // 加密
+ } 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();
+ }
+ return null;
+ }
+
+ /**
+ * 解密
+ *
+ * @param content
+ * 待解密内容
+ * @param password
+ * 解密密钥
+ * @return
+ */
+ public static byte[] decrypt(byte[] content, String password) {
+ try {
+ String charset = "utf-8";
+ KeyGenerator kgen = KeyGenerator.getInstance("AES");
+
+ SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG");
+ secureRandom.setSeed(password.getBytes());
+ kgen.init(128, secureRandom);
+
+ SecretKey secretKey = kgen.generateKey();
+ byte[] enCodeFormat = secretKey.getEncoded();
+ SecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES");
+ Cipher cipher = Cipher.getInstance("AES");// 创建密码器
+ cipher.init(Cipher.DECRYPT_MODE, key);// 初始化
+ byte[] result = cipher.doFinal(content);
+ return result; // 加密
+ } 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();
+ }
+ return null;
+ }
+
+ /**
+ * 将二进制转换成16进制
+ *
+ * @param buf
+ * @return
+ */
+ public static String parseByte2HexStr(byte[] buf) {
+ StringBuffer sb = new StringBuffer();
+ for (int i = 0; i < buf.length; i++) {
+ String hex = Integer.toHexString(buf[i] & 0xFF);
+ if (hex.length() == 1) {
+ hex = '0' + hex;
+ }
+ sb.append(hex.toUpperCase());
+ }
+ return sb.toString();
+ }
+
+ /**
+ * 将16进制转换为二进制
+ *
+ * @param hexStr
+ * @return
+ */
+ public static byte[] parseHexStr2Byte(String hexStr) {
+ if (hexStr.length() < 1)
+ return null;
+ byte[] result = new byte[hexStr.length() / 2];
+ for (int i = 0; i < hexStr.length() / 2; i++) {
+ int high = Integer.parseInt(hexStr.substring(i * 2, i * 2 + 1), 16);
+ int low = Integer.parseInt(hexStr.substring(i * 2 + 1, i * 2 + 2), 16);
+ result[i] = (byte)(high * 16 + low);
+ }
+ return result;
+ }
+
+ /**
+ * 加密
+ *
+ * @param content
+ * 需要加密的内容
+ * @param password
+ * 加密密码
+ * @return
+ */
+ public static byte[] encrypt2(String content, String password) {
+ try {
+ SecretKeySpec key = new SecretKeySpec(password.getBytes(), "AES");
+ Cipher cipher = Cipher.getInstance("AES/ECB/NoPadding");
+ byte[] byteContent = content.getBytes(StandardCharsets.UTF_8);
+ cipher.init(Cipher.ENCRYPT_MODE, key);// 初始化
+ byte[] result = cipher.doFinal(byteContent);
+ return result; // 加密
+ } 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();
+ }
+ return null;
+ }
+
+ public static void main(String[] args) throws UnsupportedEncodingException {
+ String content = "我是shoneworn";
+ String password = "12345678";
+ // 加密
+ System.out.println("加密前：" + content);
+ byte[] encode = encrypt(content, password);
+
+ // 传输过程,不转成16进制的字符串，就等着程序崩溃掉吧
+ String code = parseByte2HexStr(encode);
+ System.out.println("密文字符串：" + code);
+ byte[] decode = parseHexStr2Byte(code);
+ // 解密
+ byte[] decryptResult = decrypt(decode, password);
+ System.out.println("解密后：" + new String(decryptResult, StandardCharsets.UTF_8)); // 不转码会乱码
+
+ }
+}
--
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