From 99bc815e07e39354f51421b77f4012ffd35594d8 Mon Sep 17 00:00:00 2001
From: wjc <1243177876@qq.com>
Date: 星期三, 28 六月 2023 18:03:00 +0800
Subject: [PATCH] 2023年06月28日18:02:58
---
HDLLinkLocalSdk/src/main/java/com/hdl/sdk/link/core/utils/AesUtil.java | 150 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 150 insertions(+), 0 deletions(-)
diff --git a/HDLLinkLocalSdk/src/main/java/com/hdl/sdk/link/core/utils/AesUtil.java b/HDLLinkLocalSdk/src/main/java/com/hdl/sdk/link/core/utils/AesUtil.java
new file mode 100644
index 0000000..942e76e
--- /dev/null
+++ b/HDLLinkLocalSdk/src/main/java/com/hdl/sdk/link/core/utils/AesUtil.java
@@ -0,0 +1,150 @@
+package com.hdl.sdk.link.core.utils;
+
+
+import android.text.TextUtils;
+
+import com.hdl.sdk.link.common.utils.LogUtils;
+
+import java.security.InvalidAlgorithmParameterException;
+import java.security.InvalidKeyException;
+import java.security.Key;
+import java.security.NoSuchAlgorithmException;
+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;
+
+/**
+ * Aes 鍔犺В瀵嗗伐鍏风被
+ *
+ * @author yangtao
+ * 2020骞�10鏈�29鏃�
+ */
+public class AesUtil {
+
+ private static final String CIPHER_INSTANCE = "AES/CBC/PKCS7Padding";
+ private static final String AES_ALGORITHM = "AES";
+
+// static {
+// //AES/CBC/PKCS7Padding 渚濊禆
+// Security.addProvider(new BouncyCastleProvider());
+// }
+
+ /**
+ * AES鍔犲瘑
+ *
+ * @param key
+ * @return
+ * @throws Exception
+ */
+ public static byte[] aesEncrypt(byte[] content, String key) {
+ return encrypt(content, key.getBytes(), CIPHER_INSTANCE, true, null);
+ }
+
+ /**
+ * AES瑙ｅ瘑
+ *
+ * @param key
+ * @return
+ * @throws Exception
+ */
+ public static byte[] aesDecrypt(byte[] content, String key) {
+ if (content == null || TextUtils.isEmpty(key)) {
+ LogUtils.i("鏁版嵁瑙ｅ瘑锛�","content锛�"+content+" key:"+key);
+ return null;
+ }
+ return decrypt(content, key.getBytes(), CIPHER_INSTANCE, true, null);
+ }
+
+
+ /**
+ * 鍔犲瘑
+ *
+ * @param content 寰呭姞瀵嗗瓧绗︿覆
+ * @param keyByte aesKye鐨刪exStr
+ * @param cipherInstance AES绠楁硶濉厖鏂瑰紡
+ * @param isIv 鏄惁浣跨敤鍋忕Щ閲� ECB妯″紡涓嶅彲鐢�
+ * @param iv 鍋忕Щ閲� 涓嶄紶榛樿瀵嗛挜
+ * @return
+ */
+ public static byte[] encrypt(byte[] content, byte[] keyByte, String cipherInstance, Boolean isIv, byte[] iv) {
+ try {
+ //KEY杞崲
+ Key key = new SecretKeySpec(keyByte, AES_ALGORITHM);
+ //鍔犲瘑
+ Cipher cipher = Cipher.getInstance(cipherInstance);
+ if (isIv != null && isIv) {
+ //鍋忕Щ閲� 涓嶄紶榛樿瀵嗛挜
+ if (iv == null) {
+ iv = keyByte;
+ }
+ IvParameterSpec ivps = new IvParameterSpec(iv);
+ cipher.init(Cipher.ENCRYPT_MODE, key, ivps);
+ } else {
+ cipher.init(Cipher.ENCRYPT_MODE, key);
+ }
+ byte[] result = cipher.doFinal(content);
+ return result;
+ } catch (NoSuchAlgorithmException e) {
+ LogUtils.e(e.getMessage());
+ } catch (InvalidKeyException e) {
+ LogUtils.e(e.getMessage());
+ } catch (NoSuchPaddingException e) {
+ LogUtils.e(e.getMessage());
+ } catch (BadPaddingException e) {
+ LogUtils.e(e.getMessage());
+ } catch (IllegalBlockSizeException e) {
+ LogUtils.e(e.getMessage());
+ } catch (InvalidAlgorithmParameterException e) {
+ LogUtils.e(e.getMessage());
+ }
+ return null;
+ }
+
+ /**
+ * 瑙ｅ瘑
+ *
+ * @param contentByte 寰呰В瀵嗗緟瀛楃涓瞙exStr
+ * @param contentByte 瀵嗛挜
+ * @param cipherInstance AES绠楁硶濉厖鏂瑰紡
+ * @param isIv 鏄惁浣跨敤鍋忕Щ閲� ECB妯″紡涓嶅彲鐢�
+ * @param iv 鍋忕Щ閲� 涓嶄紶榛樿瀵嗛挜
+ * @return
+ */
+ public static byte[] decrypt(byte[] contentByte, byte[] keyByte, String cipherInstance, Boolean isIv, byte[] iv) {
+ try {
+ //KEY杞崲
+ Key key = new SecretKeySpec(keyByte, AES_ALGORITHM);
+ //瑙ｅ瘑
+ Cipher cipher = Cipher.getInstance(cipherInstance);
+ if (isIv != null && isIv) {
+ //鍋忕Щ閲� 涓嶄紶榛樿瀵嗛挜
+ if (iv == null) {
+ iv = keyByte;
+ }
+ IvParameterSpec ivps = new IvParameterSpec(iv);
+ cipher.init(Cipher.DECRYPT_MODE, key, ivps);
+ } else {
+ cipher.init(Cipher.DECRYPT_MODE, key);
+ }
+ byte[] result = cipher.doFinal(contentByte);
+ return result;
+ } catch (NoSuchAlgorithmException e) {
+ LogUtils.e(e.getMessage());
+ } catch (InvalidKeyException e) {
+ LogUtils.e(e.getMessage());
+ } catch (NoSuchPaddingException e) {
+ LogUtils.e(e.getMessage());
+ } catch (BadPaddingException e) {
+ LogUtils.e(e.getMessage());
+ } catch (IllegalBlockSizeException e) {
+ LogUtils.e(e.getMessage());
+ } catch (InvalidAlgorithmParameterException e) {
+ LogUtils.e(e.getMessage());
+ }
+ return null;
+ }
+
+}
--
Gitblit v1.8.0