From fd39c75a64e7ef703264a5e09cac2909e73882c8 Mon Sep 17 00:00:00 2001
From: CroakFang <1605296300@qq.com>
Date: Tue, 13 Dec 2022 23:09:47 +0800
Subject: [PATCH] add game manifest hash algorithm

---
 Assets/Scripts/ManifestEntry.cs | 44 +++++++++++++++++----------------
 1 file changed, 23 insertions(+), 21 deletions(-)

diff --git a/Assets/Scripts/ManifestEntry.cs b/Assets/Scripts/ManifestEntry.cs
index 0bef48d..ca498f1 100644
--- a/Assets/Scripts/ManifestEntry.cs
+++ b/Assets/Scripts/ManifestEntry.cs
@@ -3,31 +3,33 @@ using System;
 using System.Security.Cryptography;
 using System.Text;
 using UnityEngine;
-
-namespace Assets.Editor.RootMotion
+public class ManifestEntry
 {
-    public class ManifestEntry 
+    public static byte[] CalHame(ulong checksum, ulong size, byte[] name)
     {
-        public static byte[] CalHame(ulong checksum, ulong size, byte[] name)
+        if (name == null) return null;
+        SHA1CryptoServiceProvider sha1 = new SHA1CryptoServiceProvider();
+        byte[] allbyte = new byte[name.Length + 16];
+        byte[] checksumByte = BitConverter.GetBytes(checksum);
+        byte[] sizeByte = BitConverter.GetBytes(size);
+        for (int i = 0; i < 16; i++)
         {
-            if (name == null) return null;
-            SHA1CryptoServiceProvider sha1 = new SHA1CryptoServiceProvider();
-            byte[] allbyte = new byte[name.Length + 16];
-            byte[] checksumByte = BitConverter.GetBytes(checksum);
-            byte[] sizeByte = BitConverter.GetBytes(size);
-            for(int i=0; i < 16; i++)
-            {
-                allbyte[i] = (i < 8 ? checksumByte[7 - i] : sizeByte[15 - i]);
-            }
-            Buffer.BlockCopy(name, 0, allbyte, 16, name.Length);
-            return sha1.ComputeHash(allbyte);
+            allbyte[i] = (i < 8 ? checksumByte[7 - i] : sizeByte[15 - i]);
         }
+        Buffer.BlockCopy(name, 0, allbyte, 16, name.Length);
+        return sha1.ComputeHash(allbyte);
+    }
 
-        public static string CalHameString(ulong checksum, ulong size, byte[] name)
-        {
-            var bytes = CalHame(checksum, size, name);
-            Base32 base32 = new Base32();
-            return base32.Encode(bytes);
-        }
+    public static string CalHameString(ulong checksum, ulong size, byte[] name)
+    {
+        var bytes = CalHame(checksum, size, name);
+        Base32 base32 = new Base32();
+        return base32.Encode(bytes);
+    }
+
+    public static string CalHameString(ulong checksum, ulong size, string name)
+    {
+        return CalHameString(checksum, size, Encoding.UTF8.GetBytes(name));
     }
 }
+