diff --git a/AxibugEmuOnline.Client/Assets/Script/Common/Helper.cs b/AxibugEmuOnline.Client/Assets/Script/Common/Helper.cs
index 6cf5c99..6d64427 100644
--- a/AxibugEmuOnline.Client/Assets/Script/Common/Helper.cs
+++ b/AxibugEmuOnline.Client/Assets/Script/Common/Helper.cs
@@ -59,5 +59,19 @@ namespace AxibugEmuOnline.Client.Common
                 }
             }
         }
+        public static string FileMD5Hash(byte[] data)
+        {
+            using (var md5 = MD5.Create())
+            {
+                using (var stream = new MemoryStream(data))
+                {
+                    var hash = md5.ComputeHash(stream);
+                    var sb = new StringBuilder(hash.Length * 2);
+                    foreach (var b in hash)
+                        sb.AppendFormat("{0:x2}", b);
+                    return sb.ToString();
+                }
+            }
+        }
     }
 }
diff --git a/AxibugEmuOnline.Client/Assets/Script/Manager/RomLib/RomLib.cs b/AxibugEmuOnline.Client/Assets/Script/Manager/RomLib/RomLib.cs
index 1aafdac..b4105d9 100644
--- a/AxibugEmuOnline.Client/Assets/Script/Manager/RomLib/RomLib.cs
+++ b/AxibugEmuOnline.Client/Assets/Script/Manager/RomLib/RomLib.cs
@@ -1,4 +1,5 @@
 using AxibugEmuOnline.Client.ClientCore;
+using AxibugEmuOnline.Client.Common;
 using System;
 using System.Collections.Generic;
 using System.IO;
@@ -116,15 +117,7 @@ namespace AxibugEmuOnline.Client
 
         public static string CalcHash(byte[] data)
         {
-            return string.Empty; //todo : 等待远程仓库敲定hash算法
-            //var hashBytes = MD5.Create().ComputeHash(data);
-            //StringBuilder sb = new StringBuilder();
-            //foreach (byte b in hashBytes)
-            //{
-            //    sb.Append(b.ToString("x2"));
-            //}
-
-            //return sb.ToString();
+            return Helper.FileMD5Hash(data);
         }
     }
 }