diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj
index e58b2648..9d215848 100644
--- a/ArcFormats/ArcFormats.csproj
+++ b/ArcFormats/ArcFormats.csproj
@@ -346,6 +346,7 @@
+
diff --git a/ArcFormats/TanukiSoft/ArcTAC.cs b/ArcFormats/TanukiSoft/ArcTAC.cs
new file mode 100644
index 00000000..fc41b24f
--- /dev/null
+++ b/ArcFormats/TanukiSoft/ArcTAC.cs
@@ -0,0 +1,167 @@
+//! \file ArcTAC.cs
+//! \date Wed Jan 25 04:41:35 2017
+//! \brief TanukiSoft resource archive.
+//
+// Copyright (C) 2017 by morkt
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+using System.Linq;
+using System.Text;
+using GameRes.Compression;
+using GameRes.Cryptography;
+
+namespace GameRes.Formats.Tanuki
+{
+ [Export(typeof(ArchiveFormat))]
+ public class TacOpener : ArchiveFormat
+ {
+ public override string Tag { get { return "TAC"; } }
+ public override string Description { get { return "TanukiSoft resource archive"; } }
+ public override uint Signature { get { return 0x63724154; } } // 'TArc'
+ public override bool IsHierarchic { get { return false; } }
+ public override bool CanWrite { get { return false; } }
+
+ static readonly byte[] IndexKey = Encoding.ASCII.GetBytes ("TLibArchiveData");
+
+ public override ArcFile TryOpen (ArcView file)
+ {
+ int version;
+ if (file.View.AsciiEqual (4, "1.00"))
+ version = 100;
+ else if (file.View.AsciiEqual (4, "1.10"))
+ version = 110;
+ else
+ return null;
+ int count = file.View.ReadInt32 (0x14);
+ if (!IsSaneCount (count))
+ return null;
+
+ int bucket_count = file.View.ReadInt32 (0x18);
+ uint index_size = file.View.ReadUInt32 (0x1C);
+ long index_offset = version >= 110 ? 0x2C : 0x24;
+ long base_offset = index_offset + index_size;
+ var blowfish = new Blowfish (IndexKey);
+ var packed_bytes = file.View.ReadBytes (index_offset, index_size);
+ blowfish.Decipher (packed_bytes, packed_bytes.Length & ~7);
+
+ using (var input = new MemoryStream (packed_bytes))
+ using (var unpacked = new ZLibStream (input, CompressionMode.Decompress))
+ using (var index = new BinaryReader (unpacked))
+ {
+ var dir_table = new List (bucket_count);
+ for (int i = 0; i < bucket_count; ++i)
+ {
+ var entry = new TacBucket();
+ entry.Hash = index.ReadUInt16();
+ entry.Count = index.ReadUInt16();
+ entry.Index = index.ReadInt32();
+ dir_table.Add (entry);
+ }
+ var dir = new List (count);
+ for (int i = 0; i < count; ++i)
+ {
+ var entry = new TacEntry();
+ entry.Hash = index.ReadUInt64();
+ entry.IsPacked = index.ReadInt32() != 0;
+ entry.UnpackedSize = index.ReadUInt32();
+ entry.Offset = base_offset + index.ReadUInt32();
+ entry.Size = index.ReadUInt32();
+ if (!entry.CheckPlacement (file.MaxOffset))
+ return null;
+ dir.Add (entry);
+ }
+ var buffer = new byte[8];
+ foreach (var bucket in dir_table)
+ {
+ for (int i = 0; i < bucket.Count; ++i)
+ {
+ var entry = dir[bucket.Index+i] as TacEntry;
+ entry.Hash = entry.Hash << 16 | bucket.Hash;
+ entry.Name = string.Format ("{0:X16}", entry.Hash);
+ if (entry.IsPacked)
+ continue;
+ entry.Key = Encoding.ASCII.GetBytes (string.Format ("{0}_tlib_secure_", entry.Hash));
+ var bf = new Blowfish (entry.Key);
+ file.View.Read (entry.Offset, buffer, 0, 8);
+ bf.Decipher (buffer, 8);
+ var res = AutoEntry.DetectFileType (buffer.ToUInt32 (0));
+ if (res != null)
+ entry.ChangeType (res);
+ if ("image" == entry.Type)
+ entry.EncryptedSize = Math.Min (10240, entry.Size);
+ else
+ entry.EncryptedSize = entry.Size;
+ }
+ }
+ return new ArcFile (file, this, dir);
+ }
+ }
+
+ public override Stream OpenEntry (ArcFile arc, Entry entry)
+ {
+ var tent = entry as TacEntry;
+ if (null == tent)
+ return base.OpenEntry (arc, entry);
+ if (tent.IsPacked)
+ {
+ var input = arc.File.CreateStream (entry.Offset, entry.Size);
+ return new ZLibStream (input, CompressionMode.Decompress);
+ }
+ var bf = new Blowfish (tent.Key);
+ if (tent.EncryptedSize < tent.Size)
+ {
+ var header = arc.File.View.ReadBytes (tent.Offset, tent.EncryptedSize);
+ bf.Decipher (header, header.Length);
+ var rest = arc.File.CreateStream (tent.Offset+tent.EncryptedSize, tent.Size-tent.EncryptedSize);
+ return new PrefixStream (header, rest);
+ }
+ else if (0 == (tent.Size & 7))
+ {
+ var input = arc.File.CreateStream (tent.Offset, tent.Size);
+ return new InputCryptoStream (input, bf.CreateDecryptor());
+ }
+ else
+ {
+ var data = arc.File.View.ReadBytes (tent.Offset, tent.Size);
+ bf.Decipher (data, data.Length & ~7);
+ return new BinMemoryStream (data);
+ }
+ }
+ }
+
+ internal class TacEntry : PackedEntry
+ {
+ public ulong Hash;
+ public byte[] Key;
+ public uint EncryptedSize;
+ }
+
+ internal class TacBucket
+ {
+ public ushort Hash;
+ public int Count;
+ public int Index;
+ }
+}
diff --git a/supported.html b/supported.html
index e4ad9e3f..e0e7963c 100644
--- a/supported.html
+++ b/supported.html
@@ -1375,6 +1375,10 @@ femme fatale
Kidou Houshinki