diff --git a/geki/calc_title_server_enc_key.py b/geki/calc_title_server_enc_key.py
index e5fc768..c1e2cee 100644
--- a/geki/calc_title_server_enc_key.py
+++ b/geki/calc_title_server_enc_key.py
@@ -34,12 +34,27 @@ ASCII_EX_CHARACTERS = (
 )
 
 
+def to_ascii(input: bytes):
+    output: list[int] = []
+
+    for b in input:
+        while b >= 122:
+            b -= 122
+
+        while b < 48:
+            b += 48
+
+        output.append(b)
+    
+    return bytes(output)
+
+
 def to_ascii_ex(input: bytes):
     output: list[int] = []
 
     for b in input:
         b = (b - 48) % len(ASCII_EX_CHARACTERS)
-        output.append(b)
+        output.append(ord(ASCII_EX_CHARACTERS[b]))
 
     return bytes(output)
 
@@ -69,12 +84,15 @@ with (cast(Path, args.mu3_data_path) / "resources.assets").open("rb") as f:
                 key=args.key_iv_digest_fixed
             ).digest()
 
+            if data.m_Name in {"noise0", "noise1"}:
+                key = to_ascii(key)
+
+                if args.ascii_ex:
+                    key = to_ascii_ex(key)
+
             if data.m_Name == "noise1":
                 key = key[:16]
             elif data.m_Name == "noise2":
                 key = key[:8]
 
-            if args.ascii_ex and data.m_Name in {"noise0", "noise1"}:
-                key = to_ascii_ex(key)
-
             print(f"{FILE_MAP[data.m_Name]}: {key.hex()}")