Add caching to Secure lookup

fox-it · Jul 5, 2024 · f4fc920 · f4fc920
1 parent 2765041
commit f4fc920
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/dissect/ntfs/secure.py b/dissect/ntfs/secure.py
@@ -2,6 +2,7 @@
 
 import io
 from typing import BinaryIO, Iterator
+from functools import lru_cache
 from uuid import UUID
 
 from dissect.util.sid import read_sid
@@ -25,6 +26,8 @@ def __init__(self, record: MftRecord = None, sds: BinaryIO = None):
         self.sds = None
         self.sii = None
 
+        self.lookup = lru_cache(4096)(self.lookup)
+
         if record:
             self.sds = record.open("$SDS")
             self.sii = record.index("$SII")