From ca24c31edef78afd67a711524b5729a8e3001cc0 Mon Sep 17 00:00:00 2001
From: lifegpc <root@lifegpc.com>
Date: Fri, 10 Apr 2026 15:29:05 +0800
Subject: [PATCH] Add YuzuCrypt

---
 msg_tool_xp3data/crypt.json                   |  6 ++-
 src/scripts/kirikiri/archive/xp3/crypt/mod.rs | 40 +++++++++++++++++++
 2 files changed, 45 insertions(+), 1 deletion(-)

diff --git a/msg_tool_xp3data/crypt.json b/msg_tool_xp3data/crypt.json
index dec461a..3b5256b 100644
--- a/msg_tool_xp3data/crypt.json
+++ b/msg_tool_xp3data/crypt.json
@@ -1798,7 +1798,7 @@
         "OddBranchOrder": "AgMEBQAB",
         "EvenBranchOrder": "BwYEAQMAAgU=",
         "ControlBlockName": "sabbat.bin",
-        "Title": "サノバウィッチ | 魔女的夜宴"
+        "Title": "サノバウィッチ [English] | 魔女的夜宴 [English]"
     },
     "Saikyou Chikan Densha": {
         "$type": "FlyingShineCrypt",
@@ -1818,6 +1818,10 @@
         "Key": 209,
         "Title": "サメと生きる七日間 体験版"
     },
+    "Sanoba Witch": {
+        "$type": "YuzuCrypt",
+        "Title": "サノバウィッチ | 魔女的夜宴"
+    },
     "Sakura Sakura": {
         "$type": "HashCrypt",
         "Title": "さくらさくら"
diff --git a/src/scripts/kirikiri/archive/xp3/crypt/mod.rs b/src/scripts/kirikiri/archive/xp3/crypt/mod.rs
index 7417305..c3ffc26 100644
--- a/src/scripts/kirikiri/archive/xp3/crypt/mod.rs
+++ b/src/scripts/kirikiri/archive/xp3/crypt/mod.rs
@@ -187,6 +187,7 @@ enum CryptType {
         first_xor: u8,
         zero_xor: u8,
     },
+    YuzuCrypt,
 }
 
 #[derive(Clone, Debug, Deserialize)]
@@ -299,6 +300,7 @@ impl Schema {
                 *first_xor,
                 *zero_xor,
             )),
+            CryptType::YuzuCrypt => Box::new(YuzuCrypt::new(self.base.clone())),
         })
     }
 }
@@ -1304,6 +1306,24 @@ impl<R: Read> Read for SmileCryptReader<R> {
     }
 }
 
+seek_crypt_filehash_key_impl!(YuzuCrypt, YuzuCryptReader<T>);
+
+impl<R: Read> Read for YuzuCryptReader<R> {
+    fn read(&mut self, buf: &mut [u8]) -> std::io::Result<usize> {
+        let readed = self.inner.read(buf)?;
+        let hash = self.key ^ 0x1DDB6E7A;
+        let mut key = (hash ^ (hash >> 8) ^ (hash >> 16) ^ (hash >> 24)) as u8;
+        if key == 0 {
+            key = 0xD0;
+        }
+        for t in (&mut buf[..readed]).iter_mut() {
+            *t ^= key;
+        }
+        self.pos += readed as u64;
+        Ok(readed)
+    }
+}
+
 #[test]
 fn test_deserialize_crypt() {
     for (key, schema) in CRYPT_SCHEMA.iter() {
@@ -1311,6 +1331,26 @@ fn test_deserialize_crypt() {
     }
 }
 
+#[test]
+fn check_alias_exists() {
+    let mut alias = std::collections::HashSet::new();
+    for (key, schema) in CRYPT_SCHEMA.iter() {
+        if alias.contains(key.as_str()) {
+            panic!("Game {} is already used", key);
+        }
+        alias.insert(key.to_string());
+        if let Some(title) = &schema.title {
+            for part in title.split("|") {
+                let part = part.trim();
+                if alias.contains(part) {
+                    panic!("Game alias {} in {} is already used", part, key);
+                }
+                alias.insert(part.to_string());
+            }
+        }
+    }
+}
+
 #[test]
 fn test_cx_cb_table() {
     for (key, list) in CX_CB_TABLE.iter() {