From a276f348ca76b7da405d100d266eeb6359fe7230 Mon Sep 17 00:00:00 2001
From: Kaustubh BM <kaustubhbm3574@gmail.com>
Date: Wed, 5 Oct 2022 13:38:20 +0530
Subject: [PATCH] Delete Cbc.py

---
 ImaginaryCTF/Cbc.py | 34 ----------------------------------
 1 file changed, 34 deletions(-)
 delete mode 100644 ImaginaryCTF/Cbc.py

diff --git a/ImaginaryCTF/Cbc.py b/ImaginaryCTF/Cbc.py
deleted file mode 100644
index 1295630..0000000
--- a/ImaginaryCTF/Cbc.py
+++ /dev/null
@@ -1,34 +0,0 @@
-from Crypto.Cipher import AES
-from Crypto.Util.Padding import pad, unpad
-from os import urandom
-
-def cbc_encrypt(msg: bytes):
-  msg = pad(msg, 16)
-  msg = [msg[i:i+16] for i in range(0, len(msg), 16)]
-  key = urandom(16)
-  out = []
-  for block in msg:
-    cipher = AES.new(key, AES.MODE_ECB)
-    next = cipher.encrypt(block)
-    out.append(next)
-    key = next
-  out = b"".join(out)
-  return key, out
-
-ct = b"\xa2\xb8 <\xf2\x85\xa3-\xd1\x1aM}\xa9\xfd4\xfag<p\x0e\xb7|\xeb\x05\xcbc\xc3\x1e\xc3\xefT\x80\xd3\xa4 ~$\xceXb\x9a\x04\xf0\xc6\xb6\xd6\x1c\x95\xd1(O\xcfx\xf2z_\xc3\x87\xa6\xe9\x00\x1d\x9f\xa7\x0bm\xca\xea\x1e\x95T[Q\x80\x07we\x96)t\xdd\xa9A 7dZ\x9d\xfc\xdbA\x14\xda9\xf3\xeag\xe3\x1a\xc8\xad\x1cnL\x91\xf6\x83'\xaa\xaf\xf3i\xc0t=\xcd\x02K\x81\xb6\xfa.@\xde\xf5\xaf\xa3\xf1\xe3\xb4?\xf9,\xb2:i\x13x\xea1\xa0\xc1\xb9\x84"
-ciphertext = ct[2*len(ct)//3-16:]
-key = ct[2*len(ct)//3 - 32:2*len(ct)//3-16]
-
-def cbc_decrypt(ciphertext,key):
-  ct = [ciphertext[i:i+16] for i in range(0, len(ciphertext), 16)]
-  out = []
-  for block in ct:
-    cipher = AES.new(key, AES.MODE_ECB)
-    next = cipher.decrypt(block)
-    out.append(next)
-    key = block
-  out = b"".join(out)
-  return out
-  
-plaintext = cbc_decrypt(ciphertext,key).decode()
-print(plaintext)