From 6bd04f5bc621d824229573521aa8f5edf0d51dda Mon Sep 17 00:00:00 2001
From: morkt <muvluv.ru@gmail.com>
Date: Sat, 27 Aug 2016 21:17:30 +0400
Subject: [PATCH] (ShiinaRio): additional encryption scheme.

---
 ArcFormats/ShiinaRio/WarcEncryption.cs | 49 ++++++++++++++++++++++++++
 supported.html                         |  9 +++++
 2 files changed, 58 insertions(+)

diff --git a/ArcFormats/ShiinaRio/WarcEncryption.cs b/ArcFormats/ShiinaRio/WarcEncryption.cs
index a24b925c..4b31416a 100644
--- a/ArcFormats/ShiinaRio/WarcEncryption.cs
+++ b/ArcFormats/ShiinaRio/WarcEncryption.cs
@@ -722,4 +722,53 @@ namespace GameRes.Formats.ShiinaRio
             }
         }
     }
+
+    [Serializable]
+    public class DodakureCrypt : IDecryptExtra
+    {
+        public void Decrypt (byte[] data, int index, uint length, uint flags)
+        {
+            if (length < 0x200)
+                return;
+            if ((flags & 0x204) == 0x204)
+            {
+                if (0x718E958D == LittleEndian.ToUInt32 (data, index))
+                {
+                    var input = new byte[0x200];
+                    Buffer.BlockCopy (data, index, input, 0, 0x200);
+                    int remaining = LittleEndian.ToInt32 (input, 8);
+                    int src = 12;
+                    int dst = index;
+                    bool rle = false;
+                    while (remaining > 0)
+                    {
+                        int count = input[src++];
+                        if (rle)
+                        {
+                            byte v = data[dst-1];
+                            for (int i = 0; i < count; ++i)
+                                data[dst++] = v;
+                        }
+                        else
+                        {
+                            Buffer.BlockCopy (input, src, data, dst, count);
+                            src += count;
+                            dst += count;
+                        }
+                        remaining -= count;
+                        if (count < 0xFF)
+                            rle = !rle;
+                    }
+                }
+                if (length > 0x200)
+                    data[index + 0x200] ^= (byte)length;
+                if (length > 0x201)
+                    data[index + 0x201] ^= (byte)(length >> 8);
+                if (length > 0x202)
+                    data[index + 0x202] ^= (byte)(length >> 16);
+                if (length > 0x203)
+                    data[index + 0x203] ^= (byte)(length >> 24);
+            }
+        }
+    }
 }
diff --git a/supported.html b/supported.html
index d9f947d6..c3d197a6 100644
--- a/supported.html
+++ b/supported.html
@@ -195,6 +195,7 @@ Crime Rhyme<br/>
 </td></tr>
 <tr class="odd"><td>*.rpa</td><td><tt>RPA-3.0</tt></td><td>Yes</td><td>Ren'Py</td><td>Katawa Shoujo</td></tr>
 <tr><td>*.arc</td><td>-</td><td>Yes</td><td rowspan="3">Will</td><td rowspan="3">
+Chaste ☆ Chase!<br/>
 Cynthia ~Sincerely to You~<br/>
 Folklore Jam<br/>
 Hapihosu! ~Osewasaremasu Nyuuin Seikatsu~<br/>
@@ -265,9 +266,12 @@ Seirei Tenshou<br/>
 Se-kirara<br/>
 Sharin no Kuni, Himawari no Shoujo<br/>
 Shokusai no Miyako<br/>
+Smile Cubic!<br/>
+Suiheisen made Nan Mile?<br/>
 Swan Song<br/>
 Teakamamire no Tenshi<br/>
 Zecchou Spiral!!<br/>
+Zettai Karen! Ojou-sama<br/>
 </td></tr>
 <tr><td>*.tlg</td><td><tt>TLG0.0</tt><br/><tt>TLG5.0</tt><br/><tt>TLG6.0</tt></td><td>No</td></tr>
 <tr class="odd"><td>*.ypf</td><td><tt>YPF</tt></td><td>Yes</td><td rowspan="2">YU-RIS</td><td rowspan="2">
@@ -375,6 +379,7 @@ Chikan Circle <span class="footnote">ShiinaRio v2.46</span><br/>
 Chikan Circle 2 <span class="footnote">ShiinaRio v2.47</span><br/>
 Chuuchuu Nurse <span class="footnote">ShiinaRio v2.45</span><br/>
 Classmate no Okaa-san <span class="footnote">ShiinaRio v2.37</span><br/>
+Doushite Daite Kurenai no!?<span class="footnote">ShiinaRio v2.49</span><br/>
 Draculius <span class="footnote">ShiinaRio v2.38</span><br/>
 Enkaku Sousa <span class="footnote">2.36 or 2.37</span><br/>
 Gohoushi Nurse ~Mayonaka no Kyousei Call~ <span class="footnote">ShiinaRio v2.50</span><br/>
@@ -720,6 +725,7 @@ Wizard Links<br/>
 Atori no Sora to Shinchuu no Tsuki<br/>
 Favorite Sweet!<br/>
 Nanapuri<br/>
+Sabae no Ou Scenario II<br/>
 Soushinjutsu 3<br/>
 </td></tr>
 <tr class="odd"><td>*.spd</td><td><tt>SPDC</tt></td><td>No</td></tr>
@@ -1000,13 +1006,16 @@ Aniyome Kyouka-san to Sono Haha Chikako-san<br/>
 Aru Kazoku no Kankeizu<br/>
 Chou no Yume ~Futari no Chou~<br/>
 Cosplay Ecchi ~Layer Kana no Yuuutsu~<br/>
+Fuka no Jugoku<br/>
 Gakkou Yarashii Kaidan<br/>
 Hanamaru! 2<br/>
 Hime Kami 1/2<br/>
 In'youchuu Goku ~Ryoujoku Jigoku Taimaroku~<br/>
 In'youchuu Rei ~Ryoujoku Shiro Taima Emaki~<br/>
 Koitsuma Biyori ~Yukino-san wa Hitozuma Kanrinin~<br/>
+Kowaku no Toki<br/>
 Kuraibito<br/>
+Natsu Doki! Harem<br/>
 Naze ka Kanojo ga Boku ni Ecchi o Sematte Kuru Ken<br/>
 Onna Kyoushi Suzune<br/>
 Oshioki ~Gakuen Reijou Kousei Keikaku~<br/>