From dc928a1fba1a857430485940dd6395ea22958961 Mon Sep 17 00:00:00 2001
From: Qi Zhao <zhaoqi99@outlook.com>
Date: Tue, 5 Nov 2024 18:05:38 +0800
Subject: [PATCH] =?UTF-8?q?perf:=20=E2=9A=A1=EF=B8=8F=20speed=20up=20decry?=
 =?UTF-8?q?pt=5Fkey?=
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---
 pyencrypt/decrypt.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pyencrypt/decrypt.py b/pyencrypt/decrypt.py
index 140fd77..37da803 100644
--- a/pyencrypt/decrypt.py
+++ b/pyencrypt/decrypt.py
@@ -1,9 +1,12 @@
-from pathlib import Path
 import os
+from functools import lru_cache
+from pathlib import Path
+
 from pyencrypt.aes import aes_decrypt
 from pyencrypt.ntt import intt
 
 
+@lru_cache
 def decrypt_key(cipher_key: str, d: int, n: int) -> str:
     plain_ls = list()
     for num in map(int, cipher_key.split("O")):