another KiriKiri encryption scheme.

ArcFormats/KiriKiri/CryptAlgorithms.cs

@@ -976,4 +976,49 @@ namespace GameRes.Formats.KiriKiri
             Decrypt (entry, offset, data, pos, count);
         }
     }
+
+    [Serializable]
+    public class PuCaCrypt : ICrypt
+    {
+        public uint[] HashTable;
+        public byte[] KeyTable;
+
+        public override void Decrypt (Xp3Entry entry, long offset, byte[] buffer, int pos, int count)
+        {
+            if (HashTable != null)
+            {
+                int i = Array.IndexOf (HashTable, entry.Hash);
+                if (i != -1)
+                {
+                    for (int j = 0; j < count; ++j)
+                        buffer[pos+j] ^= KeyTable[i];
+                    return;
+                }
+            }
+            var hash_table = new byte[32];
+            uint hash = entry.Hash;
+            for (int k = 0; k < 32; k += 4)
+            {
+                if (0 != (hash & 1))
+                    hash |= 0x80000000;
+                else
+                    hash &= 0x7FFFFFFF;
+                LittleEndian.Pack (hash, hash_table, k);
+                hash >>= 1;
+            }
+            var key_table = new byte[0x400];
+            for (int l = 0; l < 32; ++l)
+            {
+                for (int m = 0; m < 32; ++m)
+                    key_table[32 * l + m] = (byte)(~hash_table[l] ^ hash_table[m]);
+            }
+            for (int n = 0; n < count; ++n)
+                buffer[pos+n] ^= key_table[(offset + n) & 0x3FF];
+        }
+
+        public override void Encrypt (Xp3Entry entry, long offset, byte[] buffer, int pos, int count)
+        {
+            Decrypt (entry, offset, buffer, pos, count);
+        }
+    }
 }

ArcFormats/Properties/AssemblyInfo.cs

@@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion ("1.2.33.1382")]
+[assembly: AssemblyVersion ("1.2.33.1383")]
-[assembly: AssemblyFileVersion ("1.2.33.1382")]
+[assembly: AssemblyFileVersion ("1.2.33.1383")]

docs/version.xml

@@ -12,10 +12,10 @@
 </Notes>
     </Release>
     <FormatsData>
-        <FileVersion>66</FileVersion>
+        <FileVersion>67</FileVersion>
         <Url>https://github.com/morkt/GARbro/raw/master/ArcFormats/Resources/Formats.dat</Url>
         <Requires>
-            <Assembly Name="ArcFormats" Version="1.2.31.1367"/>
+            <Assembly Name="ArcFormats" Version="1.2.33.1383"/>
             <Assembly Name="GameRes" Version="1.4.26.238"/>
         </Requires>
     </FormatsData>