From b0e33b3c3ac3b0015841efdda0be1598da265cd7 Mon Sep 17 00:00:00 2001
From: ALEXTANG <574809918@qq.com>
Date: Mon, 3 Apr 2023 14:42:51 +0800
Subject: [PATCH] Create Encryption.cs

---
 Assets/TEngine/Editor/Resource/Encryption.cs | 38 ++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 Assets/TEngine/Editor/Resource/Encryption.cs

diff --git a/Assets/TEngine/Editor/Resource/Encryption.cs b/Assets/TEngine/Editor/Resource/Encryption.cs
new file mode 100644
index 00000000..4eae2e9c
--- /dev/null
+++ b/Assets/TEngine/Editor/Resource/Encryption.cs
@@ -0,0 +1,38 @@
+using System;
+using System.IO;
+using TEngine;
+using YooAsset;
+
+public class FileOffsetEncryption : IEncryptionServices
+{
+    public EncryptResult Encrypt(EncryptFileInfo fileInfo)
+    {
+        int offset = 32;
+        byte[] fileData = File.ReadAllBytes(fileInfo.FilePath);
+        var encryptedData = new byte[fileData.Length + offset];
+        Buffer.BlockCopy(fileData, 0, encryptedData, offset, fileData.Length);
+
+        EncryptResult result = new EncryptResult();
+        result.LoadMethod = EBundleLoadMethod.LoadFromFileOffset;
+        result.EncryptedData = encryptedData;
+        return result;
+    }
+}
+
+public class FileStreamEncryption : IEncryptionServices
+{
+    public EncryptResult Encrypt(EncryptFileInfo fileInfo)
+    {
+        // LoadFromStream
+        var fileData = File.ReadAllBytes(fileInfo.FilePath);
+        for (int i = 0; i < fileData.Length; i++)
+        {
+            fileData[i] ^= BundleStream.KEY;
+        }
+
+        EncryptResult result = new EncryptResult();
+        result.LoadMethod = EBundleLoadMethod.LoadFromStream;
+        result.EncryptedData = fileData;
+        return result;
+    }
+}
\ No newline at end of file