From f5e3af5326c05cc2c693529921cf05df7ac2a8d1 Mon Sep 17 00:00:00 2001
From: aaron <aaron@duckpond.ch>
Date: Sat, 4 Dec 2021 05:20:50 +0100
Subject: [PATCH] update writeup

---
 crypto/XMASSpirit/README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/crypto/XMASSpirit/README.md b/crypto/XMASSpirit/README.md
index ce4cb8e..2de273b 100644
--- a/crypto/XMASSpirit/README.md
+++ b/crypto/XMASSpirit/README.md
@@ -43,11 +43,11 @@ def get_factors(ct:bytes, n:int=256) -> (int, int):
 - When the factors are found, simply create a lookup table of all values and substitute each byte in the ciphertext.
 
 ```python
-def decrypt(ct:bytes) -> bytes:
+def decrypt(ct:bytes, lut:dict) -> bytes:
     ''' decrypt the file using the lookup table '''
     res = b''
     for byte in ct:
-        dec = lookup[byte]
+        dec = lut[byte]
         res += bytes([dec])
     return res
 ```