fix #526

Assets/YooAsset/Runtime/FileSystem/DefaultBuildinFileSystem/Operation/internal/LoadBuildinPackageManifestOperation.cs

@@ -69,8 +69,7 @@ namespace YooAsset
 
             if (_steps == ESteps.VerifyFileData)
             {
-                string fileHash = HashUtility.BytesCRC32(_webDataRequestOp.Result);
-                if (fileHash == _packageHash)
+                if (ManifestTools.VerifyManifestData(_webDataRequestOp.Result, _packageHash))
                 {
                     _steps = ESteps.LoadManifest;
                 }

Assets/YooAsset/Runtime/FileSystem/DefaultCacheFileSystem/Operation/internal/LoadCachePackageManifestOperation.cs

@@ -59,8 +59,7 @@ namespace YooAsset
 
             if (_steps == ESteps.VerifyFileData)
             {
-                string fileHash = HashUtility.BytesCRC32(_fileData);
-                if (fileHash == _packageHash)
+                if (ManifestTools.VerifyManifestData(_fileData, _packageHash))
                 {
                     _steps = ESteps.LoadManifest;
                 }

Assets/YooAsset/Runtime/FileSystem/DefaultEditorFileSystem/Operation/internal/LoadEditorPackageManifestOperation.cs

@@ -59,8 +59,7 @@ namespace YooAsset
 
             if (_steps == ESteps.VerifyFileData)
             {
-                string fileHash = HashUtility.BytesCRC32(_fileData);
-                if (fileHash == _packageHash)
+                if (ManifestTools.VerifyManifestData(_fileData, _packageHash))
                 {
                     _steps = ESteps.LoadManifest;
                 }

Assets/YooAsset/Runtime/FileSystem/DefaultWebRemoteFileSystem/Operation/internal/LoadWebRemotePackageManifestOperation.cs

@@ -72,8 +72,7 @@ namespace YooAsset
 
             if (_steps == ESteps.VerifyFileData)
             {
-                string fileHash = HashUtility.BytesCRC32(_webDataRequestOp.Result);
-                if (fileHash == _packageHash)
+                if (ManifestTools.VerifyManifestData(_webDataRequestOp.Result, _packageHash))
                 {
                     _steps = ESteps.LoadManifest;
                 }

Assets/YooAsset/Runtime/FileSystem/DefaultWebServerFileSystem/Operation/internal/LoadWebServerPackageManifestOperation.cs

@@ -69,8 +69,7 @@ namespace YooAsset
 
             if (_steps == ESteps.VerifyFileData)
             {
-                string fileHash = HashUtility.BytesCRC32(_webDataRequestOp.Result);
-                if (fileHash == _packageHash)
+                if (ManifestTools.VerifyManifestData(_webDataRequestOp.Result, _packageHash))
                 {
                     _steps = ESteps.LoadManifest;
                 }

Assets/YooAsset/Runtime/ResourcePackage/ManifestTools.cs

@@ -8,6 +8,30 @@ namespace YooAsset
 {
     internal static class ManifestTools
     {
+        /// <summary>
+        /// 验证清单文件的二进制数据
+        /// </summary>
+        public static bool VerifyManifestData(byte[] fileData, string hashValue)
+        {
+            if (fileData == null || fileData.Length == 0)
+                return false;
+            if (string.IsNullOrEmpty(hashValue))
+                return false;
+
+            // 注意：兼容俩种验证方式
+            // 注意：计算MD5的哈希值通常为32个字符
+            string fileHash;
+            if (hashValue.Length == 32)
+                fileHash = HashUtility.BytesMD5(fileData);
+            else
+                fileHash = HashUtility.BytesCRC32(fileData);
+
+            if (fileHash == hashValue)
+                return true;
+            else
+                return false;
+        }
+
         /// <summary>
         /// 序列化（JSON文件）
         /// </summary>